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authorAndreas Rumpf <rumpf_a@web.de>2010-03-03 16:58:33 +0100
committerAndreas Rumpf <rumpf_a@web.de>2010-03-03 16:58:33 +0100
commit048811b2be4ac05415e0ef67777dfd297f7be4d6 (patch)
tree474ac42ceafbeee6a428c4ef35dd45fc9f217472 /lib/wrappers/sdl
parent6c08ba8290d8ddebbbf3b327401a6e3087c07188 (diff)
downloadNim-048811b2be4ac05415e0ef67777dfd297f7be4d6.tar.gz
fixed graphics module
Diffstat (limited to 'lib/wrappers/sdl')
-rwxr-xr-xlib/wrappers/sdl/sdl.nim2583
1 files changed, 2583 insertions, 0 deletions
diff --git a/lib/wrappers/sdl/sdl.nim b/lib/wrappers/sdl/sdl.nim
new file mode 100755
index 000000000..b96d1e2d4
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+++ b/lib/wrappers/sdl/sdl.nim
@@ -0,0 +1,2583 @@
+#******************************************************************************
+#
+#          JEDI-SDL : Pascal units for SDL - Simple DirectMedia Layer
+#             Conversion of the Simple DirectMedia Layer Headers
+#
+# Portions created by Sam Lantinga <slouken@devolution.com> are
+# Copyright (C) 1997-2004  Sam Lantinga
+# 5635-34 Springhouse Dr.
+# Pleasanton, CA 94588 (USA)
+#
+# All Rights Reserved.
+#
+# The original files are : SDL.h
+#                          SDL_main.h
+#                          SDL_types.h
+#                          SDL_rwops.h
+#                          SDL_timer.h
+#                          SDL_audio.h
+#                          SDL_cdrom.h
+#                          SDL_joystick.h
+#                          SDL_mouse.h
+#                          SDL_keyboard.h
+#                          SDL_events.h
+#                          SDL_video.h
+#                          SDL_byteorder.h
+#                          SDL_version.h
+#                          SDL_active.h
+#                          SDL_thread.h
+#                          SDL_mutex .h
+#                          SDL_getenv.h
+#                          SDL_loadso.h
+#
+# The initial developer of this Pascal code was :
+# Dominique Louis <Dominique@SavageSoftware.com.au>
+#
+# Portions created by Dominique Louis are
+# Copyright (C) 2000 - 2004 Dominique Louis.
+#
+#
+# Contributor(s)
+# --------------
+# Tom Jones <tigertomjones@gmx.de>  His Project inspired this conversion
+# Matthias Thoma <ma.thoma@gmx.de>
+#
+# Obtained through:
+# Joint Endeavour of Delphi Innovators ( Project JEDI )
+#
+# You may retrieve the latest version of this file at the Project
+# JEDI home page, located at http://delphi-jedi.org
+#
+# The contents of this file are used with permission, subject to
+# the Mozilla Public License Version 1.1 (the "License"); you may
+# not use this file except in compliance with the License. You may
+# obtain a copy of the License at
+# http://www.mozilla.org/MPL/MPL-1.1.html
+#
+# Software distributed under the License is distributed on an
+# "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# rights and limitations under the License.
+#
+# Description
+# -----------
+#
+#
+#
+#
+#
+#
+#
+# Requires
+# --------
+#   The SDL Runtime libraris on Win32  : SDL.dll on Linux : libSDL.so
+#   They are available from...
+#   http://www.libsdl.org .
+#
+# Programming Notes
+# -----------------
+#
+#
+#
+#
+# Revision History
+# ----------------
+#   May      08 2001 - DL : Added Keyboard  State Array ( See demos for how to
+#                           use )
+#                           PKeyStateArr = ^TKeyStateArr;
+#                           TKeyStateArr = array[0..65000] of UInt8;
+#                           As most games will need it.
+#
+#   April    02 2001 - DL : Added SDL_getenv.h definitions and tested version
+#                           1.2.0 compatability.
+#
+#   March    13 2001 - MT : Added Linux compatibility.
+#
+#   March    10 2001 - MT : Added externalsyms for DEFINES
+#                           Changed the license header
+#
+#   March    09 2001 - MT : Added Kylix Ifdefs/Deleted the uses mmsystem
+#
+#   March    01 2001 - DL : Update conversion of version 1.1.8
+#
+#   July     22 2001 - DL : Added TUInt8Array and PUIntArray after suggestions
+#                           from Matthias Thoma and Eric Grange.
+#
+#   October  12 2001 - DL : Various changes as suggested by Matthias Thoma and
+#                           David Acklam
+#
+#   October  24 2001 - DL : Added FreePascal support as per suggestions from
+#                           Dean Ellis.
+#
+#   October  27 2001 - DL : Added SDL_BUTTON macro
+#
+#  November  08 2001 - DL : Bug fix as pointed out by Puthoon.
+#
+#  November  29 2001 - DL : Bug fix of SDL_SetGammaRamp as pointed out by Simon
+#                           Rushton.
+#
+#  November  30 2001 - DL : SDL_NOFRAME added as pointed out by Simon Rushton.
+#
+#  December  11 2001 - DL : Added $WEAKPACKAGEUNIT ON to facilitate useage in
+#                           Components
+#
+#  January   05 2002 - DL : Added SDL_Swap32 function as suggested by Matthias
+#                           Thoma and also made sure the _getenv from
+#                           MSVCRT.DLL uses the right calling convention
+#
+#  January   25 2002 - DL : Updated conversion of SDL_AddTimer &
+#                           SDL_RemoveTimer as per suggestions from Matthias
+#                           Thoma.
+#
+#  January   27 2002 - DL : Commented out exported function putenv and getenv
+#                           So that developers get used to using SDL_putenv
+#                           SDL_getenv, as they are more portable
+#
+#  March     05 2002 - DL : Added FreeAnNil procedure for Delphi 4 users.
+#
+#  October   23 2002 - DL : Added Delphi 3 Define of Win32.
+#                           If you intend to you Delphi 3...
+#                           ( which is officially unsupported ) make sure you
+#                           remove references to $EXTERNALSYM in this and other
+#                           SDL files.
+#
+# November  29 2002 - DL : Fixed bug in Declaration of SDL_GetRGBA that was
+#                          pointed out by Todd Lang
+#
+#   April   03 2003 - DL : Added jedi-sdl.inc include file to support more
+#                          Pascal compilers. Initial support is now included
+#                          for GnuPascal, VirtualPascal, TMT and obviously
+#                          continue support for Delphi Kylix and FreePascal.
+#
+#   April   08 2003 - MK : Aka Mr Kroket - Added Better FPC support
+#
+#   April   24 2003 - DL : under instruction from Alexey Barkovoy, I have added
+#                          better TMT Pascal support and under instruction
+#                          from Prof. Abimbola Olowofoyeku (The African Chief),
+#                          I have added better Gnu Pascal support
+#
+#   April   30 2003 - DL : under instruction from David Mears AKA
+#                          Jason Siletto, I have added FPC Linux support.
+#                          This was compiled with fpc 1.1, so remember to set
+#                          include file path. ie. -Fi/usr/share/fpcsrc/rtl/*
+#
+#
+#
+#  Revision 1.31  2007/05/29 21:30:48  savage
+#  Changes as suggested by Almindor for 64bit compatibility.
+#
+#  Revision 1.30  2007/05/29 19:31:03  savage
+#  Fix to TSDL_Overlay structure - thanks David Pethes (aka imcold)
+#
+#  Revision 1.29  2007/05/20 20:29:11  savage
+#  Initial Changes to Handle 64 Bits
+#
+#  Revision 1.26  2007/02/11 13:38:04  savage
+#  Added Nintendo DS support - Thanks Dean.
+#
+#  Revision 1.25  2006/12/02 00:12:52  savage
+#  Updated to latest version
+#
+#  Revision 1.24  2006/05/18 21:10:04  savage
+#  Added 1.2.10 Changes
+#
+#  Revision 1.23  2005/12/04 23:17:52  drellis
+#  Added declaration of SInt8 and PSInt8
+#
+#  Revision 1.22  2005/05/24 21:59:03  savage
+#  Re-arranged uses clause to work on Win32 and Linux, Thanks again Michalis.
+#
+#  Revision 1.21  2005/05/22 18:42:31  savage
+#  Changes as suggested by Michalis Kamburelis. Thanks again.
+#
+#  Revision 1.20  2005/04/10 11:48:33  savage
+#  Changes as suggested by Michalis, thanks.
+#
+#  Revision 1.19  2005/01/05 01:47:06  savage
+#  Changed LibName to reflect what MacOS X should have. ie libSDL*-1.2.0.dylib respectively.
+#
+#  Revision 1.18  2005/01/04 23:14:41  savage
+#  Changed LibName to reflect what most Linux distros will have. ie libSDL*-1.2.so.0 respectively.
+#
+#  Revision 1.17  2005/01/03 18:40:59  savage
+#  Updated Version number to reflect latest one
+#
+#  Revision 1.16  2005/01/01 02:02:06  savage
+#  Updated to v1.2.8
+#
+#  Revision 1.15  2004/12/24 18:57:11  savage
+#  forgot to apply Michalis Kamburelis' patch to the implementation section. now fixed
+#
+#  Revision 1.14  2004/12/23 23:42:18  savage
+#  Applied Patches supplied by Michalis Kamburelis ( THANKS! ), for greater FreePascal compatability.
+#
+#  Revision 1.13  2004/09/30 22:31:59  savage
+#  Updated with slightly different header comments
+#
+#  Revision 1.12  2004/09/12 21:52:58  savage
+#  Slight changes to fix some issues with the sdl classes.
+#
+#  Revision 1.11  2004/08/14 22:54:30  savage
+#  Updated so that Library name defines are correctly defined for MacOS X.
+#
+#  Revision 1.10  2004/07/20 23:57:33  savage
+#  Thanks to Paul Toth for spotting an error in the SDL Audio Convertion structures.
+#  In TSDL_AudioCVT the filters variable should point to and array of pointers and not what I had there previously.
+#
+#  Revision 1.9  2004/07/03 22:07:22  savage
+#  Added Bitwise Manipulation Functions for TSDL_VideoInfo struct.
+#
+#  Revision 1.8  2004/05/10 14:10:03  savage
+#  Initial MacOS X support. Fixed defines for MACOS ( Classic ) and DARWIN ( MacOS X ).
+#
+#  Revision 1.7  2004/04/13 09:32:08  savage
+#  Changed Shared object names back to just the .so extension to avoid conflicts on various Linux/Unix distros. Therefore developers will need to create Symbolic links to the actual Share Objects if necessary.
+#
+#  Revision 1.6  2004/04/01 20:53:23  savage
+#  Changed Linux Shared Object names so they reflect the Symbolic Links that are created when installing the RPMs from the SDL site.
+#
+#  Revision 1.5  2004/02/22 15:32:10  savage
+#  SDL_GetEnv Fix so it also works on FPC/Linux. Thanks to Rodrigo for pointing this out.
+#
+#  Revision 1.4  2004/02/21 23:24:29  savage
+#  SDL_GetEnv Fix so that it is not define twice for FPC. Thanks to Rene Hugentobler for pointing out this bug,
+#
+#  Revision 1.3  2004/02/18 22:35:51  savage
+#  Brought sdl.pas up to 1.2.7 compatability
+#  Thus...
+#  Added SDL_GL_STEREO,
+#      SDL_GL_MULTISAMPLEBUFFERS,
+#      SDL_GL_MULTISAMPLESAMPLES
+#
+#  Add DLL/Shared object functions
+#  function SDL_LoadObject( const sofile : PChar ) : Pointer;
+#
+#  function SDL_LoadFunction( handle : Pointer; const name : PChar ) : Pointer;
+#
+#  procedure SDL_UnloadObject( handle : Pointer );
+#
+#  Added function to create RWops from const memory: SDL_RWFromConstMem()
+#  function SDL_RWFromConstMem(const mem: Pointer; size: Integer) : PSDL_RWops;
+#
+#  Ported SDL_cpuinfo.h so Now you can test for Specific CPU types.
+#
+#  Revision 1.2  2004/02/17 21:37:12  savage
+#  Tidying up of units
+#
+#  Revision 1.1  2004/02/05 00:08:20  savage
+#  Module 1.0 release
+#
+#
+
+{.deadCodeElim: on.}
+when defined(windows): 
+  const 
+    LibName = "SDL.dll"
+elif defined(macosx): 
+  const 
+    LibName = "libSDL-1.2.0.dylib"
+else: 
+  const 
+    LibName = "libSDL.so"
+const 
+  MAJOR_VERSION* = 1'i8
+  MINOR_VERSION* = 2'i8
+  PATCHLEVEL* = 11'i8         # SDL.h constants
+  INIT_TIMER* = 0x00000001
+  INIT_AUDIO* = 0x00000010
+  INIT_VIDEO* = 0x00000020
+  INIT_CDROM* = 0x00000100
+  INIT_JOYSTICK* = 0x00000200
+  INIT_NOPARACHUTE* = 0x00100000 # Don't catch fatal signals
+  INIT_EVENTTHREAD* = 0x01000000 # Not supported on all OS's
+  INIT_EVERYTHING* = 0x0000FFFF # SDL_error.h constants
+  ERR_MAX_STRLEN* = 128
+  ERR_MAX_ARGS* = 5           # SDL_types.h constants
+  PRESSED* = 0x00000001
+  RELEASED* = 0x00000000      # SDL_timer.h constants
+                              # This is the OS scheduler timeslice, in milliseconds
+  TIMESLICE* = 10             # This is the maximum resolution of the SDL timer on all platforms
+  TIMER_RESOLUTION* = 10      # Experimentally determined
+                              # SDL_audio.h constants
+  AUDIO_U8* = 0x00000008      # Unsigned 8-bit samples
+  AUDIO_S8* = 0x00008008      # Signed 8-bit samples
+  AUDIO_U16LSB* = 0x00000010  # Unsigned 16-bit samples
+  AUDIO_S16LSB* = 0x00008010  # Signed 16-bit samples
+  AUDIO_U16MSB* = 0x00001010  # As above, but big-endian byte order
+  AUDIO_S16MSB* = 0x00009010  # As above, but big-endian byte order
+  AUDIO_U16* = AUDIO_U16LSB
+  AUDIO_S16* = AUDIO_S16LSB   # SDL_cdrom.h constants
+                              # The maximum number of CD-ROM tracks on a disk
+  MAX_TRACKS* = 99            # The types of CD-ROM track possible
+  AUDIO_TRACK* = 0x00000000
+  DATA_TRACK* = 0x00000004    # Conversion functions from frames to Minute/Second/Frames and vice versa
+  CD_FPS* = 75                # SDL_byteorder.h constants
+                              # The two types of endianness
+  LIL_ENDIAN* = 1234
+  BIG_ENDIAN* = 4321
+
+when cpuEndian == littleEndian: 
+  const 
+    BYTEORDER* = LIL_ENDIAN   # Native audio byte ordering
+    AUDIO_U16SYS* = AUDIO_U16LSB
+    AUDIO_S16SYS* = AUDIO_S16LSB
+else: 
+  const 
+    BYTEORDER* = BIG_ENDIAN   # Native audio byte ordering
+    AUDIO_U16SYS* = AUDIO_U16MSB
+    AUDIO_S16SYS* = AUDIO_S16MSB
+const 
+  MIX_MAXVOLUME* = 128        # SDL_joystick.h constants
+  MAX_JOYSTICKS* = 2          # only 2 are supported in the multimedia API
+  MAX_AXES* = 6               # each joystick can have up to 6 axes
+  MAX_BUTTONS* = 32           # and 32 buttons
+  AXIS_MIN* = - 32768         # minimum value for axis coordinate
+  AXIS_MAX* = 32767           # maximum value for axis coordinate
+  JOY_AXIS_THRESHOLD* = (toFloat((AXIS_MAX) - (AXIS_MIN)) / 100.000) # 1% motion
+  HAT_CENTERED* = 0x00000000
+  HAT_UP* = 0x00000001
+  HAT_RIGHT* = 0x00000002
+  HAT_DOWN* = 0x00000004
+  HAT_LEFT* = 0x00000008
+  HAT_RIGHTUP* = HAT_RIGHT or HAT_UP
+  HAT_RIGHTDOWN* = HAT_RIGHT or HAT_DOWN
+  HAT_LEFTUP* = HAT_LEFT or HAT_UP
+  HAT_LEFTDOWN* = HAT_LEFT or HAT_DOWN # SDL_events.h constants
+
+type 
+  TEventKind* = enum          # kind of an SDL event
+    NOEVENT = 0,              # Unused (do not remove)
+    ACTIVEEVENT = 1,          # Application loses/gains visibility
+    KEYDOWN = 2,              # Keys pressed
+    KEYUP = 3,                # Keys released
+    MOUSEMOTION = 4,          # Mouse moved
+    MOUSEBUTTONDOWN = 5,      # Mouse button pressed
+    MOUSEBUTTONUP = 6,        # Mouse button released
+    JOYAXISMOTION = 7,        # Joystick axis motion
+    JOYBALLMOTION = 8,        # Joystick trackball motion
+    JOYHATMOTION = 9,         # Joystick hat position change
+    JOYBUTTONDOWN = 10,       # Joystick button pressed
+    JOYBUTTONUP = 11,         # Joystick button released
+    QUITEV = 12,              # User-requested quit ( Changed due to procedure conflict )
+    SYSWMEVENT = 13,          # System specific event
+    EVENT_RESERVEDA = 14,     # Reserved for future use..
+    EVENT_RESERVED = 15,      # Reserved for future use..
+    VIDEORESIZE = 16,         # User resized video mode
+    VIDEOEXPOSE = 17,         # Screen needs to be redrawn
+    EVENT_RESERVED2 = 18,     # Reserved for future use..
+    EVENT_RESERVED3 = 19,     # Reserved for future use..
+    EVENT_RESERVED4 = 20,     # Reserved for future use..
+    EVENT_RESERVED5 = 21,     # Reserved for future use..
+    EVENT_RESERVED6 = 22,     # Reserved for future use..
+    EVENT_RESERVED7 = 23,     # Reserved for future use..
+                              # Events SDL_USEREVENT through SDL_MAXEVENTS-1 are for your use
+    USEREVENT = 24 # This last event is only for bounding internal arrays
+                   # It is the number of bits in the event mask datatype -- UInt32
+
+const 
+  NUMEVENTS* = 32
+  ALLEVENTS* = 0xFFFFFFFF
+  ACTIVEEVENTMASK* = 1 shl ord(ACTIVEEVENT)
+  KEYDOWNMASK* = 1 shl ord(KEYDOWN)
+  KEYUPMASK* = 1 shl ord(KEYUP)
+  MOUSEMOTIONMASK* = 1 shl ord(MOUSEMOTION)
+  MOUSEBUTTONDOWNMASK* = 1 shl ord(MOUSEBUTTONDOWN)
+  MOUSEBUTTONUPMASK* = 1 shl ord(MOUSEBUTTONUP)
+  MOUSEEVENTMASK* = 1 shl ord(MOUSEMOTION) or 1 shl ord(MOUSEBUTTONDOWN) or
+      1 shl ord(MOUSEBUTTONUP)
+  JOYAXISMOTIONMASK* = 1 shl ord(JOYAXISMOTION)
+  JOYBALLMOTIONMASK* = 1 shl ord(JOYBALLMOTION)
+  JOYHATMOTIONMASK* = 1 shl ord(JOYHATMOTION)
+  JOYBUTTONDOWNMASK* = 1 shl ord(JOYBUTTONDOWN)
+  JOYBUTTONUPMASK* = 1 shl ord(JOYBUTTONUP)
+  JOYEVENTMASK* = 1 shl ord(JOYAXISMOTION) or 1 shl ord(JOYBALLMOTION) or
+      1 shl ord(JOYHATMOTION) or 1 shl ord(JOYBUTTONDOWN) or
+      1 shl ord(JOYBUTTONUP)
+  VIDEORESIZEMASK* = 1 shl ord(VIDEORESIZE)
+  QUITMASK* = 1 shl ord(QUITEV)
+  SYSWMEVENTMASK* = 1 shl ord(SYSWMEVENT)
+  QUERY* = - 1
+  IGNORE* = 0
+  DISABLE* = 0
+  ENABLE* = 1                 #SDL_keyboard.h constants
+                              # This is the mask which refers to all hotkey bindings
+  ALL_HOTKEYS* = 0xFFFFFFFF # Enable/Disable keyboard repeat.  Keyboard repeat defaults to off.
+                            #  'delay' is the initial delay in ms between the time when a key is
+                            #  pressed, and keyboard repeat begins.
+                            #  'interval' is the time in ms between keyboard repeat events.
+  DEFAULT_REPEAT_DELAY* = 500
+  DEFAULT_REPEAT_INTERVAL* = 30 # The keyboard syms have been cleverly chosen to map to ASCII
+  K_UNKNOWN* = 0
+  K_FIRST* = 0
+  K_BACKSPACE* = 8
+  K_TAB* = 9
+  K_CLEAR* = 12
+  K_RETURN* = 13
+  K_PAUSE* = 19
+  K_ESCAPE* = 27
+  K_SPACE* = 32
+  K_EXCLAIM* = 33
+  K_QUOTEDBL* = 34
+  K_HASH* = 35
+  K_DOLLAR* = 36
+  K_AMPERSAND* = 38
+  K_QUOTE* = 39
+  K_LEFTPAREN* = 40
+  K_RIGHTPAREN* = 41
+  K_ASTERISK* = 42
+  K_PLUS* = 43
+  K_COMMA* = 44
+  K_MINUS* = 45
+  K_PERIOD* = 46
+  K_SLASH* = 47
+  K_0* = 48
+  K_1* = 49
+  K_2* = 50
+  K_3* = 51
+  K_4* = 52
+  K_5* = 53
+  K_6* = 54
+  K_7* = 55
+  K_8* = 56
+  K_9* = 57
+  K_COLON* = 58
+  K_SEMICOLON* = 59
+  K_LESS* = 60
+  K_EQUALS* = 61
+  K_GREATER* = 62
+  K_QUESTION* = 63
+  K_AT* = 64                  # Skip uppercase letters
+  K_LEFTBRACKET* = 91
+  K_BACKSLASH* = 92
+  K_RIGHTBRACKET* = 93
+  K_CARET* = 94
+  K_UNDERSCORE* = 95
+  K_BACKQUOTE* = 96
+  K_a* = 97
+  K_b* = 98
+  K_c* = 99
+  K_d* = 100
+  K_e* = 101
+  K_f* = 102
+  K_g* = 103
+  K_h* = 104
+  K_i* = 105
+  K_j* = 106
+  K_k* = 107
+  K_l* = 108
+  K_m* = 109
+  K_n* = 110
+  K_o* = 111
+  K_p* = 112
+  K_q* = 113
+  K_r* = 114
+  K_s* = 115
+  K_t* = 116
+  K_u* = 117
+  K_v* = 118
+  K_w* = 119
+  K_x* = 120
+  K_y* = 121
+  K_z* = 122
+  K_DELETE* = 127             # End of ASCII mapped keysyms
+                              # International keyboard syms
+  K_WORLD_0* = 160            # 0xA0
+  K_WORLD_1* = 161
+  K_WORLD_2* = 162
+  K_WORLD_3* = 163
+  K_WORLD_4* = 164
+  K_WORLD_5* = 165
+  K_WORLD_6* = 166
+  K_WORLD_7* = 167
+  K_WORLD_8* = 168
+  K_WORLD_9* = 169
+  K_WORLD_10* = 170
+  K_WORLD_11* = 171
+  K_WORLD_12* = 172
+  K_WORLD_13* = 173
+  K_WORLD_14* = 174
+  K_WORLD_15* = 175
+  K_WORLD_16* = 176
+  K_WORLD_17* = 177
+  K_WORLD_18* = 178
+  K_WORLD_19* = 179
+  K_WORLD_20* = 180
+  K_WORLD_21* = 181
+  K_WORLD_22* = 182
+  K_WORLD_23* = 183
+  K_WORLD_24* = 184
+  K_WORLD_25* = 185
+  K_WORLD_26* = 186
+  K_WORLD_27* = 187
+  K_WORLD_28* = 188
+  K_WORLD_29* = 189
+  K_WORLD_30* = 190
+  K_WORLD_31* = 191
+  K_WORLD_32* = 192
+  K_WORLD_33* = 193
+  K_WORLD_34* = 194
+  K_WORLD_35* = 195
+  K_WORLD_36* = 196
+  K_WORLD_37* = 197
+  K_WORLD_38* = 198
+  K_WORLD_39* = 199
+  K_WORLD_40* = 200
+  K_WORLD_41* = 201
+  K_WORLD_42* = 202
+  K_WORLD_43* = 203
+  K_WORLD_44* = 204
+  K_WORLD_45* = 205
+  K_WORLD_46* = 206
+  K_WORLD_47* = 207
+  K_WORLD_48* = 208
+  K_WORLD_49* = 209
+  K_WORLD_50* = 210
+  K_WORLD_51* = 211
+  K_WORLD_52* = 212
+  K_WORLD_53* = 213
+  K_WORLD_54* = 214
+  K_WORLD_55* = 215
+  K_WORLD_56* = 216
+  K_WORLD_57* = 217
+  K_WORLD_58* = 218
+  K_WORLD_59* = 219
+  K_WORLD_60* = 220
+  K_WORLD_61* = 221
+  K_WORLD_62* = 222
+  K_WORLD_63* = 223
+  K_WORLD_64* = 224
+  K_WORLD_65* = 225
+  K_WORLD_66* = 226
+  K_WORLD_67* = 227
+  K_WORLD_68* = 228
+  K_WORLD_69* = 229
+  K_WORLD_70* = 230
+  K_WORLD_71* = 231
+  K_WORLD_72* = 232
+  K_WORLD_73* = 233
+  K_WORLD_74* = 234
+  K_WORLD_75* = 235
+  K_WORLD_76* = 236
+  K_WORLD_77* = 237
+  K_WORLD_78* = 238
+  K_WORLD_79* = 239
+  K_WORLD_80* = 240
+  K_WORLD_81* = 241
+  K_WORLD_82* = 242
+  K_WORLD_83* = 243
+  K_WORLD_84* = 244
+  K_WORLD_85* = 245
+  K_WORLD_86* = 246
+  K_WORLD_87* = 247
+  K_WORLD_88* = 248
+  K_WORLD_89* = 249
+  K_WORLD_90* = 250
+  K_WORLD_91* = 251
+  K_WORLD_92* = 252
+  K_WORLD_93* = 253
+  K_WORLD_94* = 254
+  K_WORLD_95* = 255           # 0xFF
+                              # Numeric keypad
+  K_KP0* = 256
+  K_KP1* = 257
+  K_KP2* = 258
+  K_KP3* = 259
+  K_KP4* = 260
+  K_KP5* = 261
+  K_KP6* = 262
+  K_KP7* = 263
+  K_KP8* = 264
+  K_KP9* = 265
+  K_KP_PERIOD* = 266
+  K_KP_DIVIDE* = 267
+  K_KP_MULTIPLY* = 268
+  K_KP_MINUS* = 269
+  K_KP_PLUS* = 270
+  K_KP_ENTER* = 271
+  K_KP_EQUALS* = 272          # Arrows + Home/End pad
+  K_UP* = 273
+  K_DOWN* = 274
+  K_RIGHT* = 275
+  K_LEFT* = 276
+  K_INSERT* = 277
+  K_HOME* = 278
+  K_END* = 279
+  K_PAGEUP* = 280
+  K_PAGEDOWN* = 281           # Function keys
+  K_F1* = 282
+  K_F2* = 283
+  K_F3* = 284
+  K_F4* = 285
+  K_F5* = 286
+  K_F6* = 287
+  K_F7* = 288
+  K_F8* = 289
+  K_F9* = 290
+  K_F10* = 291
+  K_F11* = 292
+  K_F12* = 293
+  K_F13* = 294
+  K_F14* = 295
+  K_F15* = 296                # Key state modifier keys
+  K_NUMLOCK* = 300
+  K_CAPSLOCK* = 301
+  K_SCROLLOCK* = 302
+  K_RSHIFT* = 303
+  K_LSHIFT* = 304
+  K_RCTRL* = 305
+  K_LCTRL* = 306
+  K_RALT* = 307
+  K_LALT* = 308
+  K_RMETA* = 309
+  K_LMETA* = 310
+  K_LSUPER* = 311             # Left "Windows" key
+  K_RSUPER* = 312             # Right "Windows" key
+  K_MODE* = 313               # "Alt Gr" key
+  K_COMPOSE* = 314            # Multi-key compose key
+                              # Miscellaneous function keys
+  K_HELP* = 315
+  K_PRINT* = 316
+  K_SYSREQ* = 317
+  K_BREAK* = 318
+  K_MENU* = 319
+  K_POWER* = 320              # Power Macintosh power key
+  K_EURO* = 321               # Some european keyboards
+  K_GP2X_UP* = 0
+  K_GP2X_UPLEFT* = 1
+  K_GP2X_LEFT* = 2
+  K_GP2X_DOWNLEFT* = 3
+  K_GP2X_DOWN* = 4
+  K_GP2X_DOWNRIGHT* = 5
+  K_GP2X_RIGHT* = 6
+  K_GP2X_UPRIGHT* = 7
+  K_GP2X_START* = 8
+  K_GP2X_SELECT* = 9
+  K_GP2X_L* = 10
+  K_GP2X_R* = 11
+  K_GP2X_A* = 12
+  K_GP2X_B* = 13
+  K_GP2X_Y* = 14
+  K_GP2X_X* = 15
+  K_GP2X_VOLUP* = 16
+  K_GP2X_VOLDOWN* = 17
+  K_GP2X_CLICK* = 18
+
+const                         # Enumeration of valid key mods (possibly OR'd together)
+  KMOD_NONE* = 0x00000000
+  KMOD_LSHIFT* = 0x00000001
+  KMOD_RSHIFT* = 0x00000002
+  KMOD_LCTRL* = 0x00000040
+  KMOD_RCTRL* = 0x00000080
+  KMOD_LALT* = 0x00000100
+  KMOD_RALT* = 0x00000200
+  KMOD_LMETA* = 0x00000400
+  KMOD_RMETA* = 0x00000800
+  KMOD_NUM* = 0x00001000
+  KMOD_CAPS* = 0x00002000
+  KMOD_MODE* = 44000
+  KMOD_RESERVED* = 0x00008000
+  KMOD_CTRL* = (KMOD_LCTRL or KMOD_RCTRL)
+  KMOD_SHIFT* = (KMOD_LSHIFT or KMOD_RSHIFT)
+  KMOD_ALT* = (KMOD_LALT or KMOD_RALT)
+  KMOD_META* = (KMOD_LMETA or KMOD_RMETA) #SDL_video.h constants
+                                          # Transparency definitions: These define alpha as the opacity of a surface */
+  ALPHA_OPAQUE* = 255
+  ALPHA_TRANSPARENT* = 0 # These are the currently supported flags for the SDL_surface
+                         # Available for SDL_CreateRGBSurface() or SDL_SetVideoMode()
+  SWSURFACE* = 0x00000000     # Surface is in system memory
+  HWSURFACE* = 0x00000001     # Surface is in video memory
+  ASYNCBLIT* = 0x00000004     # Use asynchronous blits if possible
+                              # Available for SDL_SetVideoMode()
+  ANYFORMAT* = 0x10000000     # Allow any video depth/pixel-format
+  HWPALETTE* = 0x20000000     # Surface has exclusive palette
+  DOUBLEBUF* = 0x40000000     # Set up double-buffered video mode
+  FULLSCREEN* = 0x80000000    # Surface is a full screen display
+  OPENGL* = 0x00000002        # Create an OpenGL rendering context
+  OPENGLBLIT* = 0x00000002    # Create an OpenGL rendering context
+  RESIZABLE* = 0x00000010     # This video mode may be resized
+  NOFRAME* = 0x00000020       # No window caption or edge frame
+                              # Used internally (read-only)
+  HWACCEL* = 0x00000100       # Blit uses hardware acceleration
+  SRCCOLORKEY* = 0x00001000   # Blit uses a source color key
+  RLEACCELOK* = 0x00002000    # Private flag
+  RLEACCEL* = 0x00004000      # Colorkey blit is RLE accelerated
+  SRCALPHA* = 0x00010000      # Blit uses source alpha blending
+  SRCCLIPPING* = 0x00100000   # Blit uses source clipping
+  PREALLOC* = 0x01000000 # Surface uses preallocated memory
+                         # The most common video overlay formats.
+                         #    For an explanation of these pixel formats, see:
+                         #    http://www.webartz.com/fourcc/indexyuv.htm
+                         #
+                         #   For information on the relationship between color spaces, see:
+                         #
+                         #   
+                         #   http://www.neuro.sfc.keio.ac.jp/~aly/polygon/info/color-space-faq.html
+  YV12_OVERLAY* = 0x32315659  # Planar mode: Y + V + U  (3 planes)
+  IYUV_OVERLAY* = 0x56555949  # Planar mode: Y + U + V  (3 planes)
+  YUY2_OVERLAY* = 0x32595559  # Packed mode: Y0+U0+Y1+V0 (1 plane)
+  UYVY_OVERLAY* = 0x59565955  # Packed mode: U0+Y0+V0+Y1 (1 plane)
+  YVYU_OVERLAY* = 0x55595659  # Packed mode: Y0+V0+Y1+U0 (1 plane)
+                              # flags for SDL_SetPalette()
+  LOGPAL* = 0x00000001
+  PHYSPAL* = 0x00000002 #SDL_mouse.h constants
+                        # Used as a mask when testing buttons in buttonstate
+                        #    Button 1:	Left mouse button
+                        #    Button 2:	Middle mouse button
+                        #    Button 3:	Right mouse button
+                        #    Button 4:	Mouse Wheel Up
+                        #    Button 5:	Mouse Wheel Down
+                        #
+  BUTTON_LEFT* = 1
+  BUTTON_MIDDLE* = 2
+  BUTTON_RIGHT* = 3
+  BUTTON_WHEELUP* = 4
+  BUTTON_WHEELDOWN* = 5
+  BUTTON_LMASK* = PRESSED shl (BUTTON_LEFT - 1)
+  BUTTON_MMASK* = PRESSED shl (BUTTON_MIDDLE - 1)
+  BUTTON_RMask* = PRESSED shl (BUTTON_RIGHT - 1) # SDL_active.h constants
+                                                 # The available application states
+  APPMOUSEFOCUS* = 0x00000001 # The app has mouse coverage
+  APPINPUTFOCUS* = 0x00000002 # The app has input focus
+  APPACTIVE* = 0x00000004 # The application is active
+                          # SDL_mutex.h constants
+                          # Synchronization functions which can time out return this value
+                          #  they time out.
+  MUTEX_TIMEDOUT* = 1         # This is the timeout value which corresponds to never time out
+  MUTEX_MAXWAIT* = not int(0)
+  GRAB_QUERY* = - 1
+  GRAB_OFF* = 0
+  GRAB_ON* = 1                #SDL_GRAB_FULLSCREEN // Used internally
+
+type 
+  THandle* = int              #SDL_types.h types
+                              # Basic data types
+  TBool* = enum 
+    sdlFALSE, sdlTRUE
+  PUInt8Array* = ptr TUInt8Array
+  PUInt8* = ptr UInt8
+  PPUInt8* = ptr PUInt8
+  UInt8* = int8
+  TUInt8Array* = array[0..high(int) shr 1, UInt8]
+  PUInt16* = ptr UInt16
+  UInt16* = int16
+  PSInt8* = ptr SInt8
+  SInt8* = int8
+  PSInt16* = ptr SInt16
+  SInt16* = int16
+  PUInt32* = ptr UInt32
+  UInt32* = int
+  SInt32* = int
+  PInt* = ptr int
+  PShortInt* = ptr int8
+  PUInt64* = ptr UInt64
+  UInt64*{.final.} = object 
+    hi*: UInt32
+    lo*: UInt32
+
+  PSInt64* = ptr SInt64
+  SInt64*{.final.} = object 
+    hi*: UInt32
+    lo*: UInt32
+
+  TGrabMode* = int            # SDL_error.h types
+  Terrorcode* = enum 
+    ENOMEM, EFREAD, EFWRITE, EFSEEK, LASTERROR
+  errorcode* = Terrorcode
+  TArg*{.final.} = object 
+    buf*: array[0..ERR_MAX_STRLEN - 1, int8]
+
+  Perror* = ptr Terror
+  Terror*{.final.} = object  # This is a numeric value corresponding to the current error
+                             # SDL_rwops.h types
+                             # This is the read/write operation structure -- very basic
+                             # some helper types to handle the unions
+                             # "packed" is only guessed
+    error*: int # This is a key used to index into a language hashtable containing
+                #       internationalized versions of the SDL error messages.  If the key
+                #       is not in the hashtable, or no hashtable is available, the key is
+                #       used directly as an error message format string.
+    key*: array[0..ERR_MAX_STRLEN - 1, int8] # These are the arguments for the error functions
+    argc*: int
+    args*: array[0..ERR_MAX_ARGS - 1, TArg]
+
+  TStdio*{.final.} = object 
+    autoclose*: int           # FILE * is only defined in Kylix so we use a simple Pointer
+    fp*: Pointer
+
+  TMem*{.final.} = object 
+    base*: PUInt8
+    here*: PUInt8
+    stop*: PUInt8
+
+  TUnknown*{.final.} = object  # first declare the pointer type
+    data1*: Pointer
+
+  PRWops* = ptr TRWops        # now the pointer to function types
+  TSeek* = proc (context: PRWops, offset: int, whence: int): int{.cdecl.}
+  TRead* = proc (context: PRWops, thePtr: Pointer, size: int, maxnum: int): int{.
+      cdecl.}
+  TWrite* = proc (context: PRWops, thePtr: Pointer, size: int, num: int): int{.
+      cdecl.}
+  TClose* = proc (context: PRWops): int{.cdecl.} # the variant record itself
+  trange010 = range[0..2]
+  TRWops*{.final.} = object 
+    seek*: TSeek
+    read*: TRead
+    write*: TWrite
+    closeFile*: TClose        # a keyword as name is not allowed
+                              # be warned! structure alignment may arise at this point
+    case theType*: trange010
+    of trange010(0): 
+        stdio*: TStdio
+
+    of trange010(1): 
+        mem*: TMem
+
+    of trange010(2): 
+        unknown*: TUnknown
+
+  
+  RWops* = TRWops             # SDL_timer.h types
+                              # Function prototype for the timer callback function
+  TTimerCallback* = proc (interval: UInt32): UInt32{.cdecl.} # New timer API, supports multiple timers
+                                                             #   Written by Stephane Peter
+                                                             #   
+                                                             #   <megastep@lokigames.com>
+                                                             # Function prototype for the new timer callback function.
+                                                             #   The callback function is passed the current timer interval and returns
+                                                             #   the next timer interval.  If the returned value is the same as the one
+                                                             #   passed in, the periodic alarm continues, otherwise a new alarm is
+                                                             #   scheduled.  If the callback returns 0, the periodic alarm is cancelled.
+  TNewTimerCallback* = proc (interval: UInt32, param: Pointer): UInt32{.cdecl.} # 
+                                                                                # Definition 
+                                                                                # of 
+                                                                                # the 
+                                                                                # timer 
+                                                                                # ID 
+                                                                                # type
+  PTimerID* = ptr TTimerID
+  TTimerID*{.final.} = object 
+    interval*: UInt32
+    callback*: TNewTimerCallback
+    param*: Pointer
+    last_alarm*: UInt32
+    next*: PTimerID
+
+  TAudioSpecCallback* = proc (userdata: Pointer, stream: PUInt8, length: int){.
+      cdecl.}                 # SDL_audio.h types
+                              # The calculated values in this structure are calculated by SDL_OpenAudio()
+  PAudioSpec* = ptr TAudioSpec
+  TAudioSpec*{.final.} = object  # A structure to hold a set of audio conversion filters and buffers
+    freq*: int                # DSP frequency -- samples per second
+    format*: UInt16           # Audio data format
+    channels*: UInt8          # Number of channels: 1 mono, 2 stereo
+    silence*: UInt8           # Audio buffer silence value (calculated)
+    samples*: UInt16          # Audio buffer size in samples
+    padding*: UInt16          # Necessary for some compile environments
+    size*: UInt32 # Audio buffer size in bytes (calculated)
+                  # This function is called when the audio device needs more data.
+                  #      'stream' is a pointer to the audio data buffer
+                  #      'len' is the length of that buffer in bytes.
+                  #      Once the callback returns, the buffer will no longer be valid.
+                  #      Stereo samples are stored in a LRLRLR ordering.
+    callback*: TAudioSpecCallback
+    userdata*: Pointer
+
+  PAudioCVT* = ptr TAudioCVT
+  PAudioCVTFilter* = ptr TAudioCVTFilter
+  TAudioCVTFilter*{.final.} = object 
+    cvt*: PAudioCVT
+    format*: UInt16
+
+  PAudioCVTFilterArray* = ptr TAudioCVTFilterArray
+  TAudioCVTFilterArray* = array[0..9, PAudioCVTFilter]
+  TAudioCVT*{.final.} = object 
+    needed*: int              # Set to 1 if conversion possible
+    src_format*: UInt16       # Source audio format
+    dst_format*: UInt16       # Target audio format
+    rate_incr*: float64       # Rate conversion increment
+    buf*: PUInt8              # Buffer to hold entire audio data
+    length*: int              # Length of original audio buffer
+    len_cvt*: int             # Length of converted audio buffer
+    len_mult*: int            # buffer must be len*len_mult big
+    len_ratio*: float64       # Given len, final size is len*len_ratio
+    filters*: TAudioCVTFilterArray
+    filter_index*: int        # Current audio conversion function
+  
+  TAudiostatus* = enum        # SDL_cdrom.h types
+    AUDIO_STOPPED, AUDIO_PLAYING, AUDIO_PAUSED
+  TCDStatus* = enum 
+    CD_ERROR, CD_TRAYEMPTY, CD_STOPPED, CD_PLAYING, CD_PAUSED
+  PCDTrack* = ptr TCDTrack
+  TCDTrack*{.final.} = object  # This structure is only current as of the last call to SDL_CDStatus()
+    id*: UInt8                # Track number
+    theType*: UInt8           # Data or audio track
+    unused*: UInt16
+    len*: UInt32              # Length, in frames, of this track
+    offset*: UInt32           # Offset, in frames, from start of disk
+  
+  PCD* = ptr TCD
+  TCD*{.final.} = object      #SDL_joystick.h types
+    id*: int                  # Private drive identifier
+    status*: TCDStatus        # Current drive status
+                              # The rest of this structure is only valid if there's a CD in drive
+    numtracks*: int           # Number of tracks on disk
+    cur_track*: int           # Current track position
+    cur_frame*: int           # Current frame offset within current track
+    track*: array[0..MAX_TRACKS, TCDTrack]
+
+  PTransAxis* = ptr TTransAxis
+  TTransAxis*{.final.} = object  # The private structure used to keep track of a joystick
+    offset*: int
+    scale*: float32
+
+  PJoystick_hwdata* = ptr TJoystick_hwdata
+  TJoystick_hwdata*{.final.} = object  # joystick ID
+    id*: int                  # values used to translate device-specific coordinates into  SDL-standard ranges
+    transaxis*: array[0..5, TTransAxis]
+
+  PBallDelta* = ptr TBallDelta
+  TBallDelta*{.final.} = object  # Current ball motion deltas
+                                 # The SDL joystick structure
+    dx*: int
+    dy*: int
+
+  PJoystick* = ptr TJoystick
+  TJoystick*{.final.} = object  # SDL_verion.h types
+    index*: UInt8             # Device index
+    name*: cstring            # Joystick name - system dependent
+    naxes*: int               # Number of axis controls on the joystick
+    axes*: PUInt16            # Current axis states
+    nhats*: int               # Number of hats on the joystick
+    hats*: PUInt8             # Current hat states
+    nballs*: int              # Number of trackballs on the joystick
+    balls*: PBallDelta        # Current ball motion deltas
+    nbuttons*: int            # Number of buttons on the joystick
+    buttons*: PUInt8          # Current button states
+    hwdata*: PJoystick_hwdata # Driver dependent information
+    ref_count*: int           # Reference count for multiple opens
+  
+  Pversion* = ptr Tversion
+  Tversion*{.final.} = object  # SDL_keyboard.h types
+    major*: UInt8
+    minor*: UInt8
+    patch*: UInt8
+
+  TKey* = int32
+  TMod* = int32
+  PKeySym* = ptr TKeySym
+  TKeySym*{.final.} = object  # SDL_events.h types
+                              #Checks the event queue for messages and optionally returns them.
+                              #   If 'action' is SDL_ADDEVENT, up to 'numevents' events will be added to
+                              #   the back of the event queue.
+                              #   If 'action' is SDL_PEEKEVENT, up to 'numevents' events at the front
+                              #   of the event queue, matching 'mask', will be returned and will not
+                              #   be removed from the queue.
+                              #   If 'action' is SDL_GETEVENT, up to 'numevents' events at the front
+                              #   of the event queue, matching 'mask', will be returned and will be
+                              #   removed from the queue.
+                              #   This function returns the number of events actually stored, or -1
+                              #   if there was an error.  This function is thread-safe.
+    scancode*: UInt8          # hardware specific scancode
+    sym*: TKey                # SDL virtual keysym
+    modifier*: TMod           # current key modifiers
+    unicode*: UInt16          # translated character
+  
+  TEventAction* = enum        # Application visibility event structure
+    ADDEVENT, PEEKEVENT, GETEVENT
+  TActiveEvent*{.final.} = object  # SDL_ACTIVEEVENT
+                                   # Keyboard event structure
+    gain*: UInt8              # Whether given states were gained or lost (1/0)
+    state*: UInt8             # A mask of the focus states
+  
+  TKeyboardEvent*{.final.} = object  # SDL_KEYDOWN or SDL_KEYUP
+                                     # Mouse motion event structure
+    which*: UInt8             # The keyboard device index
+    state*: UInt8             # SDL_PRESSED or SDL_RELEASED
+    keysym*: TKeySym
+
+  TMouseMotionEvent*{.final.} = object  # SDL_MOUSEMOTION
+                                        # Mouse button event structure
+    which*: UInt8             # The mouse device index
+    state*: UInt8             # The current button state
+    x*, y*: UInt16            # The X/Y coordinates of the mouse
+    xrel*: SInt16             # The relative motion in the X direction
+    yrel*: SInt16             # The relative motion in the Y direction
+  
+  TMouseButtonEvent*{.final.} = object  # SDL_MOUSEBUTTONDOWN or SDL_MOUSEBUTTONUP
+                                        # Joystick axis motion event structure
+    which*: UInt8             # The mouse device index
+    button*: UInt8            # The mouse button index
+    state*: UInt8             # SDL_PRESSED or SDL_RELEASED
+    x*: UInt16                # The X coordinates of the mouse at press time
+    y*: UInt16                # The Y coordinates of the mouse at press time
+  
+  TJoyAxisEvent*{.final.} = object  # SDL_JOYAXISMOTION
+                                    # Joystick trackball motion event structure
+    which*: UInt8             # The joystick device index
+    axis*: UInt8              # The joystick axis index
+    value*: SInt16            # The axis value (range: -32768 to 32767)
+  
+  TJoyBallEvent*{.final.} = object  # SDL_JOYAVBALLMOTION
+                                    # Joystick hat position change event structure
+    which*: UInt8             # The joystick device index
+    ball*: UInt8              # The joystick trackball index
+    xrel*: SInt16             # The relative motion in the X direction
+    yrel*: SInt16             # The relative motion in the Y direction
+  
+  TJoyHatEvent*{.final.} = object  # SDL_JOYHATMOTION */
+                                   # Joystick button event structure
+    which*: UInt8             # The joystick device index */
+    hat*: UInt8               # The joystick hat index */
+    value*: UInt8             # The hat position value:
+                              #                    8   1   2
+                              #                    7   0   3
+                              #                    6   5   4
+                              #                    Note that zero means the POV is centered.
+  
+  TJoyButtonEvent*{.final.} = object  # SDL_JOYBUTTONDOWN or SDL_JOYBUTTONUP
+                                      # The "window resized" event
+                                      #    When you get this event, you are responsible for setting a new video
+                                      #    mode with the new width and height.
+    which*: UInt8             # The joystick device index
+    button*: UInt8            # The joystick button index
+    state*: UInt8             # SDL_PRESSED or SDL_RELEASED
+  
+  TResizeEvent*{.final.} = object  # SDL_VIDEORESIZE
+                                   # A user-defined event type
+    w*: int                   # New width
+    h*: int                   # New height
+  
+  PUserEvent* = ptr TUserEvent
+  TUserEvent*{.final.} = object  # SDL_USEREVENT through SDL_NUMEVENTS-1
+    code*: int                # User defined event code */
+    data1*: Pointer           # User defined data pointer */
+    data2*: Pointer           # User defined data pointer */
+  
+
+when defined(Unix): 
+  type                        #These are the various supported subsystems under UNIX
+    TSysWm* = enum 
+      SYSWM_X11
+when defined(WINDOWS): 
+  type 
+    PSysWMmsg* = ptr TSysWMmsg
+    TSysWMmsg*{.final.} = object 
+      version*: Tversion
+      hwnd*: THandle          # The window for the message
+      msg*: int               # The type of message
+      w_Param*: int32         # WORD message parameter
+      lParam*: int32          # LONG message parameter
+    
+elif defined(Unix): 
+  type                        # The Linux custom event structure
+    PSysWMmsg* = ptr TSysWMmsg
+    TSysWMmsg*{.final.} = object 
+      version*: Tversion
+      subsystem*: TSysWm
+      when false: 
+          event*: TXEvent
+
+    
+else: 
+  type                        # The generic custom event structure
+    PSysWMmsg* = ptr TSysWMmsg
+    TSysWMmsg*{.final.} = object 
+      version*: Tversion
+      data*: int
+
+# The Windows custom window manager information structure
+
+when defined(WINDOWS): 
+  type 
+    PSysWMinfo* = ptr TSysWMinfo
+    TSysWMinfo*{.final.} = object 
+      version*: Tversion
+      window*: THandle        # The display window
+    
+elif defined(Unix): 
+  type 
+    TX11*{.final.} = object 
+      when false: 
+          display*: PDisplay  # The X11 display
+          window*: TWindow    # The X11 display window
+                              # These locking functions should be called around
+                              # any X11 functions using the display variable.
+                              # They lock the event thread, so should not be
+                              # called around event functions or from event filters.
+          lock_func*: Pointer
+          unlock_func*: Pointer # Introduced in SDL 1.0.2
+          fswindow*: TWindow  # The X11 fullscreen window
+          wmwindow*: TWindow  # The X11 managed input window
+        
+    
+  type 
+    PSysWMinfo* = ptr TSysWMinfo
+    TSysWMinfo*{.final.} = object 
+      version*: Tversion
+      subsystem*: TSysWm
+      X11*: TX11
+
+else: 
+  type                        # The generic custom window manager information structure
+    PSysWMinfo* = ptr TSysWMinfo
+    TSysWMinfo*{.final.} = object 
+      version*: Tversion
+      data*: int
+
+type 
+  PSysWMEvent* = ptr TSysWMEvent
+  TSysWMEvent*{.final.} = object 
+    msg*: PSysWMmsg
+
+  PEvent* = ptr TEvent
+  TEvent*{.final.} = object  # This function sets up a filter to process all events before they
+                             #  change internal state and are posted to the internal event queue.
+                             #
+                             #  The filter is protypted as:
+    case theType*: TEventKind # SDL_NOEVENT, SDL_QUITEV: ();
+    of ACTIVEEVENT: 
+        active*: TActiveEvent
+
+    of KEYDOWN, KEYUP: 
+        key*: TKeyboardEvent
+
+    of MOUSEMOTION: 
+        motion*: TMouseMotionEvent
+
+    of MOUSEBUTTONDOWN, MOUSEBUTTONUP: 
+        button*: TMouseButtonEvent
+
+    of JOYAXISMOTION: 
+        jaxis*: TJoyAxisEvent
+
+    of JOYBALLMOTION: 
+        jball*: TJoyBallEvent
+
+    of JOYHATMOTION: 
+        jhat*: TJoyHatEvent
+
+    of JOYBUTTONDOWN, JOYBUTTONUP: 
+        jbutton*: TJoyButtonEvent
+
+    of VIDEORESIZE: 
+        resize*: TResizeEvent
+
+    of USEREVENT: 
+        user*: TUserEvent
+
+    of SYSWMEVENT: 
+        syswm*: TSysWMEvent
+
+    else: 
+        nil
+
+  
+  TEventFilter* = proc (event: PEvent): int{.cdecl.} # SDL_video.h types
+                                                     # Useful data types
+  PPSDL_Rect* = ptr PRect
+  PRect* = ptr TRect
+  TRect*{.final.} = object 
+    x*, y*: SInt16
+    w*, h*: UInt16
+
+  Rect* = TRect
+  PColor* = ptr TColor
+  TColor*{.final.} = object 
+    r*: UInt8
+    g*: UInt8
+    b*: UInt8
+    unused*: UInt8
+
+  PColorArray* = ptr TColorArray
+  TColorArray* = array[0..65000, TColor]
+  PPalette* = ptr TPalette
+  TPalette*{.final.} = object  # Everything in the pixel format structure is read-only
+    ncolors*: int
+    colors*: PColorArray
+
+  PPixelFormat* = ptr TPixelFormat
+  TPixelFormat*{.final.} = object  # The structure passed to the low level blit functions
+    palette*: PPalette
+    BitsPerPixel*: UInt8
+    BytesPerPixel*: UInt8
+    Rloss*: UInt8
+    Gloss*: UInt8
+    Bloss*: UInt8
+    Aloss*: UInt8
+    Rshift*: UInt8
+    Gshift*: UInt8
+    Bshift*: UInt8
+    Ashift*: UInt8
+    RMask*: UInt32
+    GMask*: UInt32
+    BMask*: UInt32
+    AMask*: UInt32
+    colorkey*: UInt32         # RGB color key information
+    alpha*: UInt8             # Alpha value information (per-surface alpha)
+  
+  PBlitInfo* = ptr TBlitInfo
+  TBlitInfo*{.final.} = object  # typedef for private surface blitting functions
+    s_pixels*: PUInt8
+    s_width*: int
+    s_height*: int
+    s_skip*: int
+    d_pixels*: PUInt8
+    d_width*: int
+    d_height*: int
+    d_skip*: int
+    aux_data*: Pointer
+    src*: PPixelFormat
+    table*: PUInt8
+    dst*: PPixelFormat
+
+  PSurface* = ptr TSurface
+  TBlit* = proc (src: PSurface, srcrect: PRect, dst: PSurface, dstrect: PRect): int{.
+      cdecl.}
+  TSurface*{.final.} = object  # Useful for determining the video hardware capabilities
+    flags*: UInt32            # Read-only
+    format*: PPixelFormat     # Read-only
+    w*, h*: cint              # Read-only
+    pitch*: UInt16            # Read-only
+    pixels*: Pointer          # Read-write
+    offset*: cint             # Private
+    hwdata*: Pointer          #TPrivate_hwdata;  Hardware-specific surface info
+                              # clipping information:
+    clip_rect*: TRect         # Read-only
+    unused1*: UInt32          # for binary compatibility
+                              # Allow recursive locks
+    locked*: UInt32           # Private
+                              # info for fast blit mapping to other surfaces
+    Blitmap*: Pointer         # PSDL_BlitMap; //   Private
+                              # format version, bumped at every change to invalidate blit maps
+    format_version*: cint      # Private
+    refcount*: cint
+
+  PVideoInfo* = ptr TVideoInfo
+  TVideoInfo*{.final.} = object  # The YUV hardware video overlay
+    hw_available*: UInt8 # Hardware and WindowManager flags in first 2 bits ( see below )
+                         #hw_available: 1; // Can you create hardware surfaces
+                         #    wm_available: 1; // Can you talk to a window manager?
+                         #    UnusedBits1: 6;
+    blit_hw*: UInt8 # Blit Hardware flags. See below for which bits do what
+                    #UnusedBits2: 1;
+                    #    blit_hw: 1; // Flag:UInt32  Accelerated blits HW --> HW
+                    #    blit_hw_CC: 1; // Flag:UInt32  Accelerated blits with Colorkey
+                    #    blit_hw_A: 1; // Flag:UInt32  Accelerated blits with Alpha
+                    #    blit_sw: 1; // Flag:UInt32  Accelerated blits SW --> HW
+                    #    blit_sw_CC: 1; // Flag:UInt32  Accelerated blits with Colorkey
+                    #    blit_sw_A: 1; // Flag:UInt32  Accelerated blits with Alpha
+                    #    blit_fill: 1; // Flag:UInt32  Accelerated color fill
+    UnusedBits3*: UInt8       # Unused at this point
+    video_mem*: UInt32        # The total amount of video memory (in K)
+    vfmt*: PPixelFormat       # Value: The format of the video surface
+    current_w*: SInt32        # Value: The current video mode width
+    current_h*: SInt32        # Value: The current video mode height
+  
+  POverlay* = ptr TOverlay
+  TOverlay*{.final.} = object  # Public enumeration for setting the OpenGL window attributes.
+    format*: UInt32           # Overlay format
+    w*, h*: int               # Width and height of overlay
+    planes*: int              # Number of planes in the overlay. Usually either 1 or 3
+    pitches*: PUInt16         # An array of pitches, one for each plane. Pitch is the length of a row in bytes.
+    pixels*: PPUInt8          # An array of pointers to the data of each plane. The overlay should be locked before these pointers are used.
+    hw_overlay*: UInt32       # This will be set to 1 if the overlay is hardware accelerated.
+  
+  TGLAttr* = enum 
+    GL_RED_SIZE, GL_GREEN_SIZE, GL_BLUE_SIZE, GL_ALPHA_SIZE, GL_BUFFER_SIZE, 
+    GL_DOUBLEBUFFER, GL_DEPTH_SIZE, GL_STENCIL_SIZE, GL_ACCUM_RED_SIZE, 
+    GL_ACCUM_GREEN_SIZE, GL_ACCUM_BLUE_SIZE, GL_ACCUM_ALPHA_SIZE, GL_STEREO, 
+    GL_MULTISAMPLEBUFFERS, GL_MULTISAMPLESAMPLES, GL_ACCELERATED_VISUAL, 
+    GL_SWAP_CONTROL
+  PCursor* = ptr TCursor
+  TCursor*{.final.} = object  # SDL_mutex.h types
+    area*: TRect              # The area of the mouse cursor
+    hot_x*, hot_y*: SInt16    # The "tip" of the cursor
+    data*: PUInt8             # B/W cursor data
+    mask*: PUInt8             # B/W cursor mask
+    save*: array[1..2, PUInt8] # Place to save cursor area
+    wm_cursor*: Pointer       # Window-manager cursor
+  
+
+type 
+  PMutex* = ptr TMutex
+  TMutex*{.final.} = object 
+  Psemaphore* = ptr Tsemaphore
+  Tsemaphore*{.final.} = object 
+  PSem* = ptr TSem
+  TSem* = TSemaphore
+  PCond* = ptr TCond
+  TCond*{.final.} = object    # SDL_thread.h types
+
+when defined(WINDOWS): 
+  type 
+    TSYS_ThreadHandle* = THandle
+when defined(Unix): 
+  type 
+    TSYS_ThreadHandle* = pointer
+type                          # This is the system-independent thread info structure
+  PThread* = ptr TThread
+  TThread*{.final.} = object  # Helper Types
+                              # Keyboard  State Array ( See demos for how to use )
+    threadid*: UInt32
+    handle*: TSYS_ThreadHandle
+    status*: int
+    errbuf*: TError
+    data*: Pointer
+
+  PKeyStateArr* = ptr TKeyStateArr
+  TKeyStateArr* = array[0..65000, UInt8] # Types required so we don't need to use Windows.pas
+  PInteger* = ptr int
+  PByte* = ptr int8
+  PWord* = ptr int16
+  PLongWord* = ptr int32      # General arrays
+  PByteArray* = ptr TByteArray
+  TByteArray* = array[0..32767, int8]
+  PWordArray* = ptr TWordArray
+  TWordArray* = array[0..16383, int16] # Generic procedure pointer
+  TProcedure* = proc () #------------------------------------------------------------------------------
+                        # initialization
+                        #------------------------------------------------------------------------------
+                        # This function loads the SDL dynamically linked library and initializes
+                        #  the subsystems specified by 'flags' (and those satisfying dependencies)
+                        #  Unless the SDL_INIT_NOPARACHUTE flag is set, it will install cleanup
+                        #  signal handlers for some commonly ignored fatal signals (like SIGSEGV)
+
+proc Init*(flags: UInt32): int{.cdecl, importc: "SDL_Init", dynlib: LibName.}
+  # This function initializes specific SDL subsystems
+proc InitSubSystem*(flags: UInt32): int{.cdecl, importc: "SDL_InitSubSystem", 
+    dynlib: LibName.}
+  # This function cleans up specific SDL subsystems
+proc QuitSubSystem*(flags: UInt32){.cdecl, importc: "SDL_QuitSubSystem", 
+                                    dynlib: LibName.}
+  # This function returns mask of the specified subsystems which have
+  #  been initialized.
+  #  If 'flags' is 0, it returns a mask of all initialized subsystems.
+proc WasInit*(flags: UInt32): UInt32{.cdecl, importc: "SDL_WasInit", 
+                                      dynlib: LibName.}
+  # This function cleans up all initialized subsystems and unloads the
+  #  dynamically linked library.  You should call it upon all exit conditions.
+proc Quit*(){.cdecl, importc: "SDL_Quit", dynlib: LibName.}
+when defined(WINDOWS): 
+  # This should be called from your WinMain() function, if any
+  proc RegisterApp*(name: cstring, style: UInt32, h_Inst: Pointer): int{.cdecl, 
+      importc: "SDL_RegisterApp", dynlib: LibName.}
+proc TableSize*(table: cstring): int
+  #------------------------------------------------------------------------------
+  # error-handling
+  #------------------------------------------------------------------------------
+  # Public functions
+proc GetError*(): cstring{.cdecl, importc: "SDL_GetError", dynlib: LibName.}
+proc SetError*(fmt: cstring){.cdecl, importc: "SDL_SetError", dynlib: LibName.}
+proc ClearError*(){.cdecl, importc: "SDL_ClearError", dynlib: LibName.}
+when not (defined(WINDOWS)): 
+  proc Error*(Code: Terrorcode){.cdecl, importc: "SDL_Error", dynlib: LibName.}
+proc OutOfMemory*()
+  #------------------------------------------------------------------------------
+  # io handling
+  #------------------------------------------------------------------------------
+  # Functions to create SDL_RWops structures from various data sources
+proc RWFromFile*(filename, mode: cstring): PRWops{.cdecl, 
+    importc: "SDL_RWFromFile", dynlib: LibName.}
+proc FreeRW*(area: PRWops){.cdecl, importc: "SDL_FreeRW", dynlib: LibName.}
+  #fp is FILE *fp ???
+proc RWFromFP*(fp: Pointer, autoclose: int): PRWops{.cdecl, 
+    importc: "SDL_RWFromFP", dynlib: LibName.}
+proc RWFromMem*(mem: Pointer, size: int): PRWops{.cdecl, 
+    importc: "SDL_RWFromMem", dynlib: LibName.}
+proc RWFromConstMem*(mem: Pointer, size: int): PRWops{.cdecl, 
+    importc: "SDL_RWFromConstMem", dynlib: LibName.}
+proc AllocRW*(): PRWops{.cdecl, importc: "SDL_AllocRW", dynlib: LibName.}
+proc RWSeek*(context: PRWops, offset: int, whence: int): int
+proc RWTell*(context: PRWops): int
+proc RWRead*(context: PRWops, theptr: Pointer, size: int, n: int): int
+proc RWWrite*(context: PRWops, theptr: Pointer, size: int, n: int): int
+proc RWClose*(context: PRWops): int
+  #------------------------------------------------------------------------------
+  # time-handling
+  #------------------------------------------------------------------------------
+  # Get the number of milliseconds since the SDL library initialization.
+  # Note that this value wraps if the program runs for more than ~49 days.
+proc GetTicks*(): UInt32{.cdecl, importc: "SDL_GetTicks", dynlib: LibName.}
+  # Wait a specified number of milliseconds before returning
+proc Delay*(msec: UInt32){.cdecl, importc: "SDL_Delay", dynlib: LibName.}
+  # Add a new timer to the pool of timers already running.
+  # Returns a timer ID, or NULL when an error occurs.
+proc AddTimer*(interval: UInt32, callback: TNewTimerCallback, param: Pointer): PTimerID{.
+    cdecl, importc: "SDL_AddTimer", dynlib: LibName.}
+  # Remove one of the multiple timers knowing its ID.
+  # Returns a boolean value indicating success.
+proc RemoveTimer*(t: PTimerID): TBool{.cdecl, importc: "SDL_RemoveTimer", 
+                                       dynlib: LibName.}
+proc SetTimer*(interval: UInt32, callback: TTimerCallback): int{.cdecl, 
+    importc: "SDL_SetTimer", dynlib: LibName.}
+  #------------------------------------------------------------------------------
+  # audio-routines
+  #------------------------------------------------------------------------------
+  # These functions are used internally, and should not be used unless you
+  #  have a specific need to specify the audio driver you want to use.
+  #  You should normally use SDL_Init() or SDL_InitSubSystem().
+proc AudioInit*(driver_name: cstring): int{.cdecl, importc: "SDL_AudioInit", 
+    dynlib: LibName.}
+proc AudioQuit*(){.cdecl, importc: "SDL_AudioQuit", dynlib: LibName.}
+  # This function fills the given character buffer with the name of the
+  #  current audio driver, and returns a Pointer to it if the audio driver has
+  #  been initialized.  It returns NULL if no driver has been initialized.
+proc AudioDriverName*(namebuf: cstring, maxlen: int): cstring{.cdecl, 
+    importc: "SDL_AudioDriverName", dynlib: LibName.}
+  # This function opens the audio device with the desired parameters, and
+  #  returns 0 if successful, placing the actual hardware parameters in the
+  #  structure pointed to by 'obtained'.  If 'obtained' is NULL, the audio
+  #  data passed to the callback function will be guaranteed to be in the
+  #  requested format, and will be automatically converted to the hardware
+  #  audio format if necessary.  This function returns -1 if it failed
+  #  to open the audio device, or couldn't set up the audio thread.
+  #
+  #  When filling in the desired audio spec structure,
+  #   'desired->freq' should be the desired audio frequency in samples-per-second.
+  #   'desired->format' should be the desired audio format.
+  #   'desired->samples' is the desired size of the audio buffer, in samples.
+  #      This number should be a power of two, and may be adjusted by the audio
+  #      driver to a value more suitable for the hardware.  Good values seem to
+  #      range between 512 and 8096 inclusive, depending on the application and
+  #      CPU speed.  Smaller values yield faster response time, but can lead
+  #      to underflow if the application is doing heavy processing and cannot
+  #      fill the audio buffer in time.  A stereo sample consists of both right
+  #      and left channels in LR ordering.
+  #      Note that the number of samples is directly related to time by the
+  #      following formula:  ms = (samples*1000)/freq
+  #   'desired->size' is the size in bytes of the audio buffer, and is
+  #      calculated by SDL_OpenAudio().
+  #   'desired->silence' is the value used to set the buffer to silence,
+  #      and is calculated by SDL_OpenAudio().
+  #   'desired->callback' should be set to a function that will be called
+  #      when the audio device is ready for more data.  It is passed a pointer
+  #      to the audio buffer, and the length in bytes of the audio buffer.
+  #      This function usually runs in a separate thread, and so you should
+  #      protect data structures that it accesses by calling SDL_LockAudio()
+  #      and SDL_UnlockAudio() in your code.
+  #   'desired->userdata' is passed as the first parameter to your callback
+  #      function.
+  #
+  #  The audio device starts out playing silence when it's opened, and should
+  #  be enabled for playing by calling SDL_PauseAudio(0) when you are ready
+  #  for your audio callback function to be called.  Since the audio driver
+  #  may modify the requested size of the audio buffer, you should allocate
+  #  any local mixing buffers after you open the audio device.
+proc OpenAudio*(desired, obtained: PAudioSpec): int{.cdecl, 
+    importc: "SDL_OpenAudio", dynlib: LibName.}
+  # Get the current audio state:
+proc GetAudioStatus*(): TAudiostatus{.cdecl, importc: "SDL_GetAudioStatus", 
+                                      dynlib: LibName.}
+  # This function pauses and unpauses the audio callback processing.
+  #  It should be called with a parameter of 0 after opening the audio
+  #  device to start playing sound.  This is so you can safely initialize
+  #  data for your callback function after opening the audio device.
+  #  Silence will be written to the audio device during the pause.
+proc PauseAudio*(pause_on: int){.cdecl, importc: "SDL_PauseAudio", 
+                                 dynlib: LibName.}
+  # This function loads a WAVE from the data source, automatically freeing
+  #  that source if 'freesrc' is non-zero.  For example, to load a WAVE file,
+  #  you could do:
+  #  SDL_LoadWAV_RW(SDL_RWFromFile("sample.wav", "rb"), 1, ...);
+  #
+  #  If this function succeeds, it returns the given SDL_AudioSpec,
+  #  filled with the audio data format of the wave data, and sets
+  #  'audio_buf' to a malloc()'d buffer containing the audio data,
+  #  and sets 'audio_len' to the length of that audio buffer, in bytes.
+  #  You need to free the audio buffer with SDL_FreeWAV() when you are
+  #  done with it.
+  #
+  #  This function returns NULL and sets the SDL error message if the
+  #  wave file cannot be opened, uses an unknown data format, or is
+  #  corrupt.  Currently raw and MS-ADPCM WAVE files are supported.
+proc LoadWAV_RW*(src: PRWops, freesrc: int, spec: PAudioSpec, audio_buf: PUInt8, 
+                 audiolen: PUInt32): PAudioSpec{.cdecl, 
+    importc: "SDL_LoadWAV_RW", dynlib: LibName.}
+  # Compatibility convenience function -- loads a WAV from a file
+proc LoadWAV*(filename: cstring, spec: PAudioSpec, audio_buf: PUInt8, 
+              audiolen: PUInt32): PAudioSpec
+  # This function frees data previously allocated with SDL_LoadWAV_RW()
+proc FreeWAV*(audio_buf: PUInt8){.cdecl, importc: "SDL_FreeWAV", dynlib: LibName.}
+  # This function takes a source format and rate and a destination format
+  #  and rate, and initializes the 'cvt' structure with information needed
+  #  by SDL_ConvertAudio() to convert a buffer of audio data from one format
+  #  to the other.
+  #  This function returns 0, or -1 if there was an error.
+proc BuildAudioCVT*(cvt: PAudioCVT, src_format: UInt16, src_channels: UInt8, 
+                    src_rate: int, dst_format: UInt16, dst_channels: UInt8, 
+                    dst_rate: int): int{.cdecl, importc: "SDL_BuildAudioCVT", 
+    dynlib: LibName.}
+  # Once you have initialized the 'cvt' structure using SDL_BuildAudioCVT(),
+  #  created an audio buffer cvt->buf, and filled it with cvt->len bytes of
+  #  audio data in the source format, this function will convert it in-place
+  #  to the desired format.
+  #  The data conversion may expand the size of the audio data, so the buffer
+  #  cvt->buf should be allocated after the cvt structure is initialized by
+  #  SDL_BuildAudioCVT(), and should be cvt->len*cvt->len_mult bytes long.
+proc ConvertAudio*(cvt: PAudioCVT): int{.cdecl, importc: "SDL_ConvertAudio", 
+    dynlib: LibName.}
+  # This takes two audio buffers of the playing audio format and mixes
+  #  them, performing addition, volume adjustment, and overflow clipping.
+  #  The volume ranges from 0 - 128, and should be set to SDL_MIX_MAXVOLUME
+  #  for full audio volume.  Note this does not change hardware volume.
+  #  This is provided for convenience -- you can mix your own audio data.
+proc MixAudio*(dst, src: PUInt8, length: UInt32, volume: int){.cdecl, 
+    importc: "SDL_MixAudio", dynlib: LibName.}
+  # The lock manipulated by these functions protects the callback function.
+  #  During a LockAudio/UnlockAudio pair, you can be guaranteed that the
+  #  callback function is not running.  Do not call these from the callback
+  #  function or you will cause deadlock.
+proc LockAudio*(){.cdecl, importc: "SDL_LockAudio", dynlib: LibName.}
+proc UnlockAudio*(){.cdecl, importc: "SDL_UnlockAudio", dynlib: LibName.}
+  # This function shuts down audio processing and closes the audio device.
+proc CloseAudio*(){.cdecl, importc: "SDL_CloseAudio", dynlib: LibName.}
+  #------------------------------------------------------------------------------
+  # CD-routines
+  #------------------------------------------------------------------------------
+  # Returns the number of CD-ROM drives on the system, or -1 if
+  #  SDL_Init() has not been called with the SDL_INIT_CDROM flag.
+proc CDNumDrives*(): int{.cdecl, importc: "SDL_CDNumDrives", dynlib: LibName.}
+  # Returns a human-readable, system-dependent identifier for the CD-ROM.
+  #   Example:
+  #   "/dev/cdrom"
+  #   "E:"
+  #   "/dev/disk/ide/1/master"
+proc CDName*(drive: int): cstring{.cdecl, importc: "SDL_CDName", dynlib: LibName.}
+  # Opens a CD-ROM drive for access.  It returns a drive handle on success,
+  #  or NULL if the drive was invalid or busy.  This newly opened CD-ROM
+  #  becomes the default CD used when other CD functions are passed a NULL
+  #  CD-ROM handle.
+  #  Drives are numbered starting with 0.  Drive 0 is the system default CD-ROM.
+proc CDOpen*(drive: int): PCD{.cdecl, importc: "SDL_CDOpen", dynlib: LibName.}
+  # This function returns the current status of the given drive.
+  #  If the drive has a CD in it, the table of contents of the CD and current
+  #  play position of the CD will be stored in the SDL_CD structure.
+proc CDStatus*(cdrom: PCD): TCDStatus{.cdecl, importc: "SDL_CDStatus", 
+                                       dynlib: LibName.}
+  #  Play the given CD starting at 'start_track' and 'start_frame' for 'ntracks'
+  #   tracks and 'nframes' frames.  If both 'ntrack' and 'nframe' are 0, play
+  #   until the end of the CD.  This function will skip data tracks.
+  #   This function should only be called after calling SDL_CDStatus() to
+  #   get track information about the CD.
+  #
+  #   For example:
+  #   // Play entire CD:
+  #  if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) then
+  #    SDL_CDPlayTracks(cdrom, 0, 0, 0, 0);
+  #   // Play last track:
+  #   if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) then
+  #   begin
+  #    SDL_CDPlayTracks(cdrom, cdrom->numtracks-1, 0, 0, 0);
+  #   end;
+  #
+  #   // Play first and second track and 10 seconds of third track:
+  #   if ( CD_INDRIVE(SDL_CDStatus(cdrom)) )
+  #    SDL_CDPlayTracks(cdrom, 0, 0, 2, 10);
+  #
+  #   This function returns 0, or -1 if there was an error.
+proc CDPlayTracks*(cdrom: PCD, start_track: int, start_frame: int, ntracks: int, 
+                   nframes: int): int{.cdecl, importc: "SDL_CDPlayTracks", 
+                                       dynlib: LibName.}
+  #  Play the given CD starting at 'start' frame for 'length' frames.
+  #   It returns 0, or -1 if there was an error.
+proc CDPlay*(cdrom: PCD, start: int, len: int): int{.cdecl, 
+    importc: "SDL_CDPlay", dynlib: LibName.}
+  # Pause play -- returns 0, or -1 on error
+proc CDPause*(cdrom: PCD): int{.cdecl, importc: "SDL_CDPause", dynlib: LibName.}
+  # Resume play -- returns 0, or -1 on error
+proc CDResume*(cdrom: PCD): int{.cdecl, importc: "SDL_CDResume", dynlib: LibName.}
+  # Stop play -- returns 0, or -1 on error
+proc CDStop*(cdrom: PCD): int{.cdecl, importc: "SDL_CDStop", dynlib: LibName.}
+  # Eject CD-ROM -- returns 0, or -1 on error
+proc CDEject*(cdrom: PCD): int{.cdecl, importc: "SDL_CDEject", dynlib: LibName.}
+  # Closes the handle for the CD-ROM drive
+proc CDClose*(cdrom: PCD){.cdecl, importc: "SDL_CDClose", dynlib: LibName.}
+  # Given a status, returns true if there's a disk in the drive
+proc CDInDrive*(status: TCDStatus): bool
+  # Conversion functions from frames to Minute/Second/Frames and vice versa
+proc FRAMES_TO_MSF*(frames: int, M: var int, S: var int, F: var int)
+proc MSF_TO_FRAMES*(M: int, S: int, F: int): int
+  #------------------------------------------------------------------------------
+  # JoyStick-routines
+  #------------------------------------------------------------------------------
+  # Count the number of joysticks attached to the system
+proc NumJoysticks*(): int{.cdecl, importc: "SDL_NumJoysticks", dynlib: LibName.}
+  # Get the implementation dependent name of a joystick.
+  #  This can be called before any joysticks are opened.
+  #  If no name can be found, this function returns NULL.
+proc JoystickName*(index: int): cstring{.cdecl, importc: "SDL_JoystickName", 
+    dynlib: LibName.}
+  # Open a joystick for use - the index passed as an argument refers to
+  #  the N'th joystick on the system.  This index is the value which will
+  #  identify this joystick in future joystick events.
+  #
+  #  This function returns a joystick identifier, or NULL if an error occurred.
+proc JoystickOpen*(index: int): PJoystick{.cdecl, importc: "SDL_JoystickOpen", 
+    dynlib: LibName.}
+  # Returns 1 if the joystick has been opened, or 0 if it has not.
+proc JoystickOpened*(index: int): int{.cdecl, importc: "SDL_JoystickOpened", 
+                                       dynlib: LibName.}
+  # Get the device index of an opened joystick.
+proc JoystickIndex*(joystick: PJoystick): int{.cdecl, 
+    importc: "SDL_JoystickIndex", dynlib: LibName.}
+  # Get the number of general axis controls on a joystick
+proc JoystickNumAxes*(joystick: PJoystick): int{.cdecl, 
+    importc: "SDL_JoystickNumAxes", dynlib: LibName.}
+  # Get the number of trackballs on a joystick
+  #  Joystick trackballs have only relative motion events associated
+  #  with them and their state cannot be polled.
+proc JoystickNumBalls*(joystick: PJoystick): int{.cdecl, 
+    importc: "SDL_JoystickNumBalls", dynlib: LibName.}
+  # Get the number of POV hats on a joystick
+proc JoystickNumHats*(joystick: PJoystick): int{.cdecl, 
+    importc: "SDL_JoystickNumHats", dynlib: LibName.}
+  # Get the number of buttons on a joystick
+proc JoystickNumButtons*(joystick: PJoystick): int{.cdecl, 
+    importc: "SDL_JoystickNumButtons", dynlib: LibName.}
+  # Update the current state of the open joysticks.
+  #  This is called automatically by the event loop if any joystick
+  #  events are enabled.
+proc JoystickUpdate*(){.cdecl, importc: "SDL_JoystickUpdate", dynlib: LibName.}
+  # Enable/disable joystick event polling.
+  #  If joystick events are disabled, you must call SDL_JoystickUpdate()
+  #  yourself and check the state of the joystick when you want joystick
+  #  information.
+  #  The state can be one of SDL_QUERY, SDL_ENABLE or SDL_IGNORE.
+proc JoystickEventState*(state: int): int{.cdecl, 
+    importc: "SDL_JoystickEventState", dynlib: LibName.}
+  # Get the current state of an axis control on a joystick
+  #  The state is a value ranging from -32768 to 32767.
+  #  The axis indices start at index 0.
+proc JoystickGetAxis*(joystick: PJoystick, axis: int): SInt16{.cdecl, 
+    importc: "SDL_JoystickGetAxis", dynlib: LibName.}
+  # The hat indices start at index 0.
+proc JoystickGetHat*(joystick: PJoystick, hat: int): UInt8{.cdecl, 
+    importc: "SDL_JoystickGetHat", dynlib: LibName.}
+  # Get the ball axis change since the last poll
+  #  This returns 0, or -1 if you passed it invalid parameters.
+  #  The ball indices start at index 0.
+proc JoystickGetBall*(joystick: PJoystick, ball: int, dx: var int, dy: var int): int{.
+    cdecl, importc: "SDL_JoystickGetBall", dynlib: LibName.}
+  # Get the current state of a button on a joystick
+  #  The button indices start at index 0.
+proc JoystickGetButton*(joystick: PJoystick, Button: int): UInt8{.cdecl, 
+    importc: "SDL_JoystickGetButton", dynlib: LibName.}
+  # Close a joystick previously opened with SDL_JoystickOpen()
+proc JoystickClose*(joystick: PJoystick){.cdecl, importc: "SDL_JoystickClose", 
+    dynlib: LibName.}
+  #------------------------------------------------------------------------------
+  # event-handling
+  #------------------------------------------------------------------------------
+  # Pumps the event loop, gathering events from the input devices.
+  #  This function updates the event queue and internal input device state.
+  #  This should only be run in the thread that sets the video mode.
+proc PumpEvents*(){.cdecl, importc: "SDL_PumpEvents", dynlib: LibName.}
+  # Checks the event queue for messages and optionally returns them.
+  #  If 'action' is SDL_ADDEVENT, up to 'numevents' events will be added to
+  #  the back of the event queue.
+  #  If 'action' is SDL_PEEKEVENT, up to 'numevents' events at the front
+  #  of the event queue, matching 'mask', will be returned and will not
+  #  be removed from the queue.
+  #  If 'action' is SDL_GETEVENT, up to 'numevents' events at the front
+  #  of the event queue, matching 'mask', will be returned and will be
+  #  removed from the queue.
+  #  This function returns the number of events actually stored, or -1
+  #  if there was an error.  This function is thread-safe.
+proc PeepEvents*(events: PEvent, numevents: int, action: Teventaction, 
+                 mask: UInt32): int{.cdecl, importc: "SDL_PeepEvents", 
+                                     dynlib: LibName.}
+  # Polls for currently pending events, and returns 1 if there are any pending
+  #   events, or 0 if there are none available.  If 'event' is not NULL, the next
+  #   event is removed from the queue and stored in that area.
+proc PollEvent*(event: PEvent): int{.cdecl, importc: "SDL_PollEvent", 
+                                     dynlib: LibName.}
+  #  Waits indefinitely for the next available event, returning 1, or 0 if there
+  #   was an error while waiting for events.  If 'event' is not NULL, the next
+  #   event is removed from the queue and stored in that area.
+proc WaitEvent*(event: PEvent): int{.cdecl, importc: "SDL_WaitEvent", 
+                                     dynlib: LibName.}
+proc PushEvent*(event: PEvent): int{.cdecl, importc: "SDL_PushEvent", 
+                                     dynlib: LibName.}
+  # If the filter returns 1, then the event will be added to the internal queue.
+  #  If it returns 0, then the event will be dropped from the queue, but the
+  #  internal state will still be updated.  This allows selective filtering of
+  #  dynamically arriving events.
+  #
+  #  WARNING:  Be very careful of what you do in the event filter function, as
+  #            it may run in a different thread!
+  #
+  #  There is one caveat when dealing with the SDL_QUITEVENT event type.  The
+  #  event filter is only called when the window manager desires to close the
+  #  application window.  If the event filter returns 1, then the window will
+  #  be closed, otherwise the window will remain open if possible.
+  #  If the quit event is generated by an interrupt signal, it will bypass the
+  #  internal queue and be delivered to the application at the next event poll.
+proc SetEventFilter*(filter: TEventFilter){.cdecl, 
+    importc: "SDL_SetEventFilter", dynlib: LibName.}
+  # Return the current event filter - can be used to "chain" filters.
+  #  If there is no event filter set, this function returns NULL.
+proc GetEventFilter*(): TEventFilter{.cdecl, importc: "SDL_GetEventFilter", 
+                                      dynlib: LibName.}
+  # This function allows you to set the state of processing certain events.
+  #  If 'state' is set to SDL_IGNORE, that event will be automatically dropped
+  #  from the event queue and will not event be filtered.
+  #  If 'state' is set to SDL_ENABLE, that event will be processed normally.
+  #  If 'state' is set to SDL_QUERY, SDL_EventState() will return the
+  #  current processing state of the specified event.
+proc EventState*(theType: UInt8, state: int): UInt8{.cdecl, 
+    importc: "SDL_EventState", dynlib: LibName.}
+  #------------------------------------------------------------------------------
+  # Version Routines
+  #------------------------------------------------------------------------------
+  # This macro can be used to fill a version structure with the compile-time
+  #  version of the SDL library.
+proc VERSION*(X: var TVersion)
+  # This macro turns the version numbers into a numeric value:
+  #   (1,2,3) -> (1203)
+  #   This assumes that there will never be more than 100 patchlevels
+proc VERSIONNUM*(X, Y, Z: int): int
+  # This is the version number macro for the current SDL version
+proc COMPILEDVERSION*(): int
+  # This macro will evaluate to true if compiled with SDL at least X.Y.Z
+proc VERSION_ATLEAST*(X: int, Y: int, Z: int): bool
+  # This function gets the version of the dynamically linked SDL library.
+  #  it should NOT be used to fill a version structure, instead you should
+  #  use the SDL_Version() macro.
+proc Linked_Version*(): Pversion{.cdecl, importc: "SDL_Linked_Version", 
+                                  dynlib: LibName.}
+  #------------------------------------------------------------------------------
+  # video
+  #------------------------------------------------------------------------------
+  # These functions are used internally, and should not be used unless you
+  #  have a specific need to specify the video driver you want to use.
+  #  You should normally use SDL_Init() or SDL_InitSubSystem().
+  #
+  #  SDL_VideoInit() initializes the video subsystem -- sets up a connection
+  #  to the window manager, etc, and determines the current video mode and
+  #  pixel format, but does not initialize a window or graphics mode.
+  #  Note that event handling is activated by this routine.
+  #
+  #  If you use both sound and video in your application, you need to call
+  #  SDL_Init() before opening the sound device, otherwise under Win32 DirectX,
+  #  you won't be able to set full-screen display modes.
+proc VideoInit*(driver_name: cstring, flags: UInt32): int{.cdecl, 
+    importc: "SDL_VideoInit", dynlib: LibName.}
+proc VideoQuit*(){.cdecl, importc: "SDL_VideoQuit", dynlib: LibName.}
+  # This function fills the given character buffer with the name of the
+  #  video driver, and returns a pointer to it if the video driver has
+  #  been initialized.  It returns NULL if no driver has been initialized.
+proc VideoDriverName*(namebuf: cstring, maxlen: int): cstring{.cdecl, 
+    importc: "SDL_VideoDriverName", dynlib: LibName.}
+  # This function returns a pointer to the current display surface.
+  #  If SDL is doing format conversion on the display surface, this
+  #  function returns the publicly visible surface, not the real video
+  #  surface.
+proc GetVideoSurface*(): PSurface{.cdecl, importc: "SDL_GetVideoSurface", 
+                                   dynlib: LibName.}
+  # This function returns a read-only pointer to information about the
+  #  video hardware.  If this is called before SDL_SetVideoMode(), the 'vfmt'
+  #  member of the returned structure will contain the pixel format of the
+  #  "best" video mode.
+proc GetVideoInfo*(): PVideoInfo{.cdecl, importc: "SDL_GetVideoInfo", 
+                                  dynlib: LibName.}
+  # Check to see if a particular video mode is supported.
+  #  It returns 0 if the requested mode is not supported under any bit depth,
+  #  or returns the bits-per-pixel of the closest available mode with the
+  #  given width and height.  If this bits-per-pixel is different from the
+  #  one used when setting the video mode, SDL_SetVideoMode() will succeed,
+  #  but will emulate the requested bits-per-pixel with a shadow surface.
+  #
+  #  The arguments to SDL_VideoModeOK() are the same ones you would pass to
+  #  SDL_SetVideoMode()
+proc VideoModeOK*(width, height, bpp: int, flags: UInt32): int{.cdecl, 
+    importc: "SDL_VideoModeOK", importc: "SDL_VideoModeOK", dynlib: LibName.}
+  # Return a pointer to an array of available screen dimensions for the
+  #  given format and video flags, sorted largest to smallest.  Returns
+  #  NULL if there are no dimensions available for a particular format,
+  #  or (SDL_Rect **)-1 if any dimension is okay for the given format.
+  #
+  #  if 'format' is NULL, the mode list will be for the format given
+  #  by SDL_GetVideoInfo( ) - > vfmt
+proc ListModes*(format: PPixelFormat, flags: UInt32): PPSDL_Rect{.cdecl, 
+    importc: "SDL_ListModes", dynlib: LibName.}
+  # Set up a video mode with the specified width, height and bits-per-pixel.
+  #
+  #  If 'bpp' is 0, it is treated as the current display bits per pixel.
+  #
+  #  If SDL_ANYFORMAT is set in 'flags', the SDL library will try to set the
+  #  requested bits-per-pixel, but will return whatever video pixel format is
+  #  available.  The default is to emulate the requested pixel format if it
+  #  is not natively available.
+  #
+  #  If SDL_HWSURFACE is set in 'flags', the video surface will be placed in
+  #  video memory, if possible, and you may have to call SDL_LockSurface()
+  #  in order to access the raw framebuffer.  Otherwise, the video surface
+  #  will be created in system memory.
+  #
+  #  If SDL_ASYNCBLIT is set in 'flags', SDL will try to perform rectangle
+  #  updates asynchronously, but you must always lock before accessing pixels.
+  #  SDL will wait for updates to complete before returning from the lock.
+  #
+  #  If SDL_HWPALETTE is set in 'flags', the SDL library will guarantee
+  #  that the colors set by SDL_SetColors() will be the colors you get.
+  #  Otherwise, in 8-bit mode, SDL_SetColors() may not be able to set all
+  #  of the colors exactly the way they are requested, and you should look
+  #  at the video surface structure to determine the actual palette.
+  #  If SDL cannot guarantee that the colors you request can be set,
+  #  i.e. if the colormap is shared, then the video surface may be created
+  #  under emulation in system memory, overriding the SDL_HWSURFACE flag.
+  #
+  #  If SDL_FULLSCREEN is set in 'flags', the SDL library will try to set
+  #  a fullscreen video mode.  The default is to create a windowed mode
+  #  if the current graphics system has a window manager.
+  #  If the SDL library is able to set a fullscreen video mode, this flag
+  #  will be set in the surface that is returned.
+  #
+  #  If SDL_DOUBLEBUF is set in 'flags', the SDL library will try to set up
+  #  two surfaces in video memory and swap between them when you call
+  #  SDL_Flip().  This is usually slower than the normal single-buffering
+  #  scheme, but prevents "tearing" artifacts caused by modifying video
+  #  memory while the monitor is refreshing.  It should only be used by
+  #  applications that redraw the entire screen on every update.
+  #
+  #  This function returns the video framebuffer surface, or NULL if it fails.
+proc SetVideoMode*(width, height, bpp: int, flags: UInt32): PSurface{.cdecl, 
+    importc: "SDL_SetVideoMode", dynlib: LibName.}
+  # Makes sure the given list of rectangles is updated on the given screen.
+  #  If 'x', 'y', 'w' and 'h' are all 0, SDL_UpdateRect will update the entire
+  #  screen.
+  #  These functions should not be called while 'screen' is locked.
+proc UpdateRects*(screen: PSurface, numrects: int, rects: PRect){.cdecl, 
+    importc: "SDL_UpdateRects", dynlib: LibName.}
+proc UpdateRect*(screen: PSurface, x, y: SInt32, w, h: UInt32){.cdecl, 
+    importc: "SDL_UpdateRect", dynlib: LibName.}
+  # On hardware that supports double-buffering, this function sets up a flip
+  #  and returns.  The hardware will wait for vertical retrace, and then swap
+  #  video buffers before the next video surface blit or lock will return.
+  #  On hardware that doesn not support double-buffering, this is equivalent
+  #  to calling SDL_UpdateRect(screen, 0, 0, 0, 0);
+  #  The SDL_DOUBLEBUF flag must have been passed to SDL_SetVideoMode() when
+  #  setting the video mode for this function to perform hardware flipping.
+  #  This function returns 0 if successful, or -1 if there was an error.
+proc Flip*(screen: PSurface): int{.cdecl, importc: "SDL_Flip", dynlib: LibName.}
+  # Set the gamma correction for each of the color channels.
+  #  The gamma values range (approximately) between 0.1 and 10.0
+  #
+  #  If this function isn't supported directly by the hardware, it will
+  #  be emulated using gamma ramps, if available.  If successful, this
+  #  function returns 0, otherwise it returns -1.
+proc SetGamma*(redgamma: float32, greengamma: float32, bluegamma: float32): int{.
+    cdecl, importc: "SDL_SetGamma", dynlib: LibName.}
+  # Set the gamma translation table for the red, green, and blue channels
+  #  of the video hardware.  Each table is an array of 256 16-bit quantities,
+  #  representing a mapping between the input and output for that channel.
+  #  The input is the index into the array, and the output is the 16-bit
+  #  gamma value at that index, scaled to the output color precision.
+  #
+  #  You may pass NULL for any of the channels to leave it unchanged.
+  #  If the call succeeds, it will return 0.  If the display driver or
+  #  hardware does not support gamma translation, or otherwise fails,
+  #  this function will return -1.
+proc SetGammaRamp*(redtable: PUInt16, greentable: PUInt16, bluetable: PUInt16): int{.
+    cdecl, importc: "SDL_SetGammaRamp", dynlib: LibName.}
+  # Retrieve the current values of the gamma translation tables.
+  #
+  #  You must pass in valid pointers to arrays of 256 16-bit quantities.
+  #  Any of the pointers may be NULL to ignore that channel.
+  #  If the call succeeds, it will return 0.  If the display driver or
+  #  hardware does not support gamma translation, or otherwise fails,
+  #  this function will return -1.
+proc GetGammaRamp*(redtable: PUInt16, greentable: PUInt16, bluetable: PUInt16): int{.
+    cdecl, importc: "SDL_GetGammaRamp", dynlib: LibName.}
+  # Sets a portion of the colormap for the given 8-bit surface.  If 'surface'
+  #  is not a palettized surface, this function does nothing, returning 0.
+  #  If all of the colors were set as passed to SDL_SetColors(), it will
+  #  return 1.  If not all the color entries were set exactly as given,
+  #  it will return 0, and you should look at the surface palette to
+  #  determine the actual color palette.
+  #
+  #  When 'surface' is the surface associated with the current display, the
+  #  display colormap will be updated with the requested colors.  If
+  #  SDL_HWPALETTE was set in SDL_SetVideoMode() flags, SDL_SetColors()
+  #  will always return 1, and the palette is guaranteed to be set the way
+  #  you desire, even if the window colormap has to be warped or run under
+  #  emulation.
+proc SetColors*(surface: PSurface, colors: PColor, firstcolor: int, ncolors: int): int{.
+    cdecl, importc: "SDL_SetColors", dynlib: LibName.}
+  # Sets a portion of the colormap for a given 8-bit surface.
+  #  'flags' is one or both of:
+  #  SDL_LOGPAL  -- set logical palette, which controls how blits are mapped
+  #                 to/from the surface,
+  #  SDL_PHYSPAL -- set physical palette, which controls how pixels look on
+  #                 the screen
+  #  Only screens have physical palettes. Separate change of physical/logical
+  #  palettes is only possible if the screen has SDL_HWPALETTE set.
+  #
+  #  The return value is 1 if all colours could be set as requested, and 0
+  #  otherwise.
+  #
+  #  SDL_SetColors() is equivalent to calling this function with
+  #  flags = (SDL_LOGPAL or SDL_PHYSPAL).
+proc SetPalette*(surface: PSurface, flags: int, colors: PColor, firstcolor: int, 
+                 ncolors: int): int{.cdecl, importc: "SDL_SetPalette", 
+                                     dynlib: LibName.}
+  # Maps an RGB triple to an opaque pixel value for a given pixel format
+proc MapRGB*(format: PPixelFormat, r: UInt8, g: UInt8, b: UInt8): UInt32{.cdecl, 
+    importc: "SDL_MapRGB", dynlib: LibName.}
+  # Maps an RGBA quadruple to a pixel value for a given pixel format
+proc MapRGBA*(format: PPixelFormat, r: UInt8, g: UInt8, b: UInt8, a: UInt8): UInt32{.
+    cdecl, importc: "SDL_MapRGBA", dynlib: LibName.}
+  # Maps a pixel value into the RGB components for a given pixel format
+proc GetRGB*(pixel: UInt32, fmt: PPixelFormat, r: PUInt8, g: PUInt8, b: PUInt8){.
+    cdecl, importc: "SDL_GetRGB", dynlib: LibName.}
+  # Maps a pixel value into the RGBA components for a given pixel format
+proc GetRGBA*(pixel: UInt32, fmt: PPixelFormat, r: PUInt8, g: PUInt8, b: PUInt8, 
+              a: PUInt8){.cdecl, importc: "SDL_GetRGBA", dynlib: LibName.}
+  # Allocate and free an RGB surface (must be called after SDL_SetVideoMode)
+  #  If the depth is 4 or 8 bits, an empty palette is allocated for the surface.
+  #  If the depth is greater than 8 bits, the pixel format is set using the
+  #  flags '[RGB]mask'.
+  #  If the function runs out of memory, it will return NULL.
+  #
+  #  The 'flags' tell what kind of surface to create.
+  #  SDL_SWSURFACE means that the surface should be created in system memory.
+  #  SDL_HWSURFACE means that the surface should be created in video memory,
+  #  with the same format as the display surface.  This is useful for surfaces
+  #  that will not change much, to take advantage of hardware acceleration
+  #  when being blitted to the display surface.
+  #  SDL_ASYNCBLIT means that SDL will try to perform asynchronous blits with
+  #  this surface, but you must always lock it before accessing the pixels.
+  #  SDL will wait for current blits to finish before returning from the lock.
+  #  SDL_SRCCOLORKEY indicates that the surface will be used for colorkey blits.
+  #  If the hardware supports acceleration of colorkey blits between
+  #  two surfaces in video memory, SDL will try to place the surface in
+  #  video memory. If this isn't possible or if there is no hardware
+  #  acceleration available, the surface will be placed in system memory.
+  #  SDL_SRCALPHA means that the surface will be used for alpha blits and
+  #  if the hardware supports hardware acceleration of alpha blits between
+  #  two surfaces in video memory, to place the surface in video memory
+  #  if possible, otherwise it will be placed in system memory.
+  #  If the surface is created in video memory, blits will be _much_ faster,
+  #  but the surface format must be identical to the video surface format,
+  #  and the only way to access the pixels member of the surface is to use
+  #  the SDL_LockSurface() and SDL_UnlockSurface() calls.
+  #  If the requested surface actually resides in video memory, SDL_HWSURFACE
+  #  will be set in the flags member of the returned surface.  If for some
+  #  reason the surface could not be placed in video memory, it will not have
+  #  the SDL_HWSURFACE flag set, and will be created in system memory instead.
+proc AllocSurface*(flags: UInt32, width, height, depth: int, 
+                   RMask, GMask, BMask, AMask: UInt32): PSurface
+proc CreateRGBSurface*(flags: UInt32, width, height, depth: int, 
+                       RMask, GMask, BMask, AMask: UInt32): PSurface{.cdecl, 
+    importc: "SDL_CreateRGBSurface", dynlib: LibName.}
+proc CreateRGBSurfaceFrom*(pixels: Pointer, width, height, depth, pitch: int, 
+                           RMask, GMask, BMask, AMask: UInt32): PSurface{.cdecl, 
+    importc: "SDL_CreateRGBSurfaceFrom", dynlib: LibName.}
+proc FreeSurface*(surface: PSurface){.cdecl, importc: "SDL_FreeSurface", 
+                                      dynlib: LibName.}
+proc MustLock*(Surface: PSurface): bool
+  # SDL_LockSurface() sets up a surface for directly accessing the pixels.
+  #  Between calls to SDL_LockSurface()/SDL_UnlockSurface(), you can write
+  #  to and read from 'surface->pixels', using the pixel format stored in
+  #  'surface->format'.  Once you are done accessing the surface, you should
+  #  use SDL_UnlockSurface() to release it.
+  #
+  #  Not all surfaces require locking.  If SDL_MUSTLOCK(surface) evaluates
+  #  to 0, then you can read and write to the surface at any time, and the
+  #  pixel format of the surface will not change.  In particular, if the
+  #  SDL_HWSURFACE flag is not given when calling SDL_SetVideoMode(), you
+  #  will not need to lock the display surface before accessing it.
+  #
+  #  No operating system or library calls should be made between lock/unlock
+  #  pairs, as critical system locks may be held during this time.
+  #
+  #  SDL_LockSurface() returns 0, or -1 if the surface couldn't be locked.
+proc LockSurface*(surface: PSurface): int{.cdecl, importc: "SDL_LockSurface", 
+    dynlib: LibName.}
+proc UnlockSurface*(surface: PSurface){.cdecl, importc: "SDL_UnlockSurface", 
+                                        dynlib: LibName.}
+  # Load a surface from a seekable SDL data source (memory or file.)
+  #  If 'freesrc' is non-zero, the source will be closed after being read.
+  #  Returns the new surface, or NULL if there was an error.
+  #  The new surface should be freed with SDL_FreeSurface().
+proc LoadBMP_RW*(src: PRWops, freesrc: int): PSurface{.cdecl, 
+    importc: "SDL_LoadBMP_RW", dynlib: LibName.}
+  # Convenience macro -- load a surface from a file
+proc LoadBMP*(filename: cstring): PSurface
+  # Save a surface to a seekable SDL data source (memory or file.)
+  #  If 'freedst' is non-zero, the source will be closed after being written.
+  #  Returns 0 if successful or -1 if there was an error.
+proc SaveBMP_RW*(surface: PSurface, dst: PRWops, freedst: int): int{.cdecl, 
+    importc: "SDL_SaveBMP_RW", dynlib: LibName.}
+  # Convenience macro -- save a surface to a file
+proc SaveBMP*(surface: PSurface, filename: cstring): int
+  # Sets the color key (transparent pixel) in a blittable surface.
+  #  If 'flag' is SDL_SRCCOLORKEY (optionally OR'd with SDL_RLEACCEL),
+  #  'key' will be the transparent pixel in the source image of a blit.
+  #  SDL_RLEACCEL requests RLE acceleration for the surface if present,
+  #  and removes RLE acceleration if absent.
+  #  If 'flag' is 0, this function clears any current color key.
+  #  This function returns 0, or -1 if there was an error.
+proc SetColorKey*(surface: PSurface, flag, key: UInt32): int{.cdecl, 
+    importc: "SDL_SetColorKey", dynlib: LibName.}
+  # This function sets the alpha value for the entire surface, as opposed to
+  #  using the alpha component of each pixel. This value measures the range
+  #  of transparency of the surface, 0 being completely transparent to 255
+  #  being completely opaque. An 'alpha' value of 255 causes blits to be
+  #  opaque, the source pixels copied to the destination (the default). Note
+  #  that per-surface alpha can be combined with colorkey transparency.
+  #
+  #  If 'flag' is 0, alpha blending is disabled for the surface.
+  #  If 'flag' is SDL_SRCALPHA, alpha blending is enabled for the surface.
+  #  OR:ing the flag with SDL_RLEACCEL requests RLE acceleration for the
+  #  surface; if SDL_RLEACCEL is not specified, the RLE accel will be removed.
+proc SetAlpha*(surface: PSurface, flag: UInt32, alpha: UInt8): int{.cdecl, 
+    importc: "SDL_SetAlpha", dynlib: LibName.}
+  # Sets the clipping rectangle for the destination surface in a blit.
+  #
+  #  If the clip rectangle is NULL, clipping will be disabled.
+  #  If the clip rectangle doesn't intersect the surface, the function will
+  #  return SDL_FALSE and blits will be completely clipped.  Otherwise the
+  #  function returns SDL_TRUE and blits to the surface will be clipped to
+  #  the intersection of the surface area and the clipping rectangle.
+  #
+  #  Note that blits are automatically clipped to the edges of the source
+  #  and destination surfaces.
+proc SetClipRect*(surface: PSurface, rect: PRect){.cdecl, 
+    importc: "SDL_SetClipRect", dynlib: LibName.}
+  # Gets the clipping rectangle for the destination surface in a blit.
+  #  'rect' must be a pointer to a valid rectangle which will be filled
+  #  with the correct values.
+proc GetClipRect*(surface: PSurface, rect: PRect){.cdecl, 
+    importc: "SDL_GetClipRect", dynlib: LibName.}
+  # Creates a new surface of the specified format, and then copies and maps
+  #  the given surface to it so the blit of the converted surface will be as
+  #  fast as possible.  If this function fails, it returns NULL.
+  #
+  #  The 'flags' parameter is passed to SDL_CreateRGBSurface() and has those
+  #  semantics.  You can also pass SDL_RLEACCEL in the flags parameter and
+  #  SDL will try to RLE accelerate colorkey and alpha blits in the resulting
+  #  surface.
+  #
+  #  This function is used internally by SDL_DisplayFormat().
+proc ConvertSurface*(src: PSurface, fmt: PPixelFormat, flags: UInt32): PSurface{.
+    cdecl, importc: "SDL_ConvertSurface", dynlib: LibName.}
+  #
+  #  This performs a fast blit from the source surface to the destination
+  #  surface.  It assumes that the source and destination rectangles are
+  #  the same size.  If either 'srcrect' or 'dstrect' are NULL, the entire
+  #  surface (src or dst) is copied.  The final blit rectangles are saved
+  #  in 'srcrect' and 'dstrect' after all clipping is performed.
+  #  If the blit is successful, it returns 0, otherwise it returns -1.
+  #
+  #  The blit function should not be called on a locked surface.
+  #
+  #  The blit semantics for surfaces with and without alpha and colorkey
+  #  are defined as follows:
+  #
+  #  RGBA->RGB:
+  #      SDL_SRCALPHA set:
+  #   alpha-blend (using alpha-channel).
+  #   SDL_SRCCOLORKEY ignored.
+  #      SDL_SRCALPHA not set:
+  #   copy RGB.
+  #   if SDL_SRCCOLORKEY set, only copy the pixels matching the
+  #   RGB values of the source colour key, ignoring alpha in the
+  #   comparison.
+  #
+  #  RGB->RGBA:
+  #      SDL_SRCALPHA set:
+  #   alpha-blend (using the source per-surface alpha value);
+  #   set destination alpha to opaque.
+  #      SDL_SRCALPHA not set:
+  #   copy RGB, set destination alpha to opaque.
+  #      both:
+  #   if SDL_SRCCOLORKEY set, only copy the pixels matching the
+  #   source colour key.
+  #
+  #  RGBA->RGBA:
+  #      SDL_SRCALPHA set:
+  #   alpha-blend (using the source alpha channel) the RGB values;
+  #   leave destination alpha untouched. [Note: is this correct?]
+  #   SDL_SRCCOLORKEY ignored.
+  #      SDL_SRCALPHA not set:
+  #   copy all of RGBA to the destination.
+  #   if SDL_SRCCOLORKEY set, only copy the pixels matching the
+  #   RGB values of the source colour key, ignoring alpha in the
+  #   comparison.
+  #
+  #  RGB->RGB:
+  #      SDL_SRCALPHA set:
+  #   alpha-blend (using the source per-surface alpha value).
+  #      SDL_SRCALPHA not set:
+  #   copy RGB.
+  #      both:
+  #   if SDL_SRCCOLORKEY set, only copy the pixels matching the
+  #   source colour key.
+  #
+  #  If either of the surfaces were in video memory, and the blit returns -2,
+  #  the video memory was lost, so it should be reloaded with artwork and
+  #  re-blitted:
+  #  while ( SDL_BlitSurface(image, imgrect, screen, dstrect) = -2 ) do
+  #  begin
+  #  while ( SDL_LockSurface(image) < 0 ) do
+  #   Sleep(10);
+  #  -- Write image pixels to image->pixels --
+  #  SDL_UnlockSurface(image);
+  # end;
+  #
+  #  This happens under DirectX 5.0 when the system switches away from your
+  #  fullscreen application.  The lock will also fail until you have access
+  #  to the video memory again.
+  # You should call SDL_BlitSurface() unless you know exactly how SDL
+  #   blitting works internally and how to use the other blit functions.
+proc BlitSurface*(src: PSurface, srcrect: PRect, dst: PSurface, dstrect: PRect): int
+  #  This is the public blit function, SDL_BlitSurface(), and it performs
+  #   rectangle validation and clipping before passing it to SDL_LowerBlit()
+proc UpperBlit*(src: PSurface, srcrect: PRect, dst: PSurface, dstrect: PRect): int{.
+    cdecl, importc: "SDL_UpperBlit", dynlib: LibName.}
+  # This is a semi-private blit function and it performs low-level surface
+  #  blitting only.
+proc LowerBlit*(src: PSurface, srcrect: PRect, dst: PSurface, dstrect: PRect): int{.
+    cdecl, importc: "SDL_LowerBlit", dynlib: LibName.}
+  # This function performs a fast fill of the given rectangle with 'color'
+  #  The given rectangle is clipped to the destination surface clip area
+  #  and the final fill rectangle is saved in the passed in pointer.
+  #  If 'dstrect' is NULL, the whole surface will be filled with 'color'
+  #  The color should be a pixel of the format used by the surface, and
+  #  can be generated by the SDL_MapRGB() function.
+  #  This function returns 0 on success, or -1 on error.
+proc FillRect*(dst: PSurface, dstrect: PRect, color: UInt32): int{.cdecl, 
+    importc: "SDL_FillRect", dynlib: LibName.}
+  # This function takes a surface and copies it to a new surface of the
+  #  pixel format and colors of the video framebuffer, suitable for fast
+  #  blitting onto the display surface.  It calls SDL_ConvertSurface()
+  #
+  #  If you want to take advantage of hardware colorkey or alpha blit
+  #  acceleration, you should set the colorkey and alpha value before
+  #  calling this function.
+  #
+  #  If the conversion fails or runs out of memory, it returns NULL
+proc DisplayFormat*(surface: PSurface): PSurface{.cdecl, 
+    importc: "SDL_DisplayFormat", dynlib: LibName.}
+  # This function takes a surface and copies it to a new surface of the
+  #  pixel format and colors of the video framebuffer (if possible),
+  #  suitable for fast alpha blitting onto the display surface.
+  #  The new surface will always have an alpha channel.
+  #
+  #  If you want to take advantage of hardware colorkey or alpha blit
+  #  acceleration, you should set the colorkey and alpha value before
+  #  calling this function.
+  #
+  #  If the conversion fails or runs out of memory, it returns NULL
+proc DisplayFormatAlpha*(surface: PSurface): PSurface{.cdecl, 
+    importc: "SDL_DisplayFormatAlpha", dynlib: LibName.}
+  #* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+  #* YUV video surface overlay functions                                       */
+  #* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+  # This function creates a video output overlay
+  #  Calling the returned surface an overlay is something of a misnomer because
+  #  the contents of the display surface underneath the area where the overlay
+  #  is shown is undefined - it may be overwritten with the converted YUV data.
+proc CreateYUVOverlay*(width: int, height: int, format: UInt32, 
+                       display: PSurface): POverlay{.cdecl, 
+    importc: "SDL_CreateYUVOverlay", dynlib: LibName.}
+  # Lock an overlay for direct access, and unlock it when you are done
+proc LockYUVOverlay*(Overlay: POverlay): int{.cdecl, 
+    importc: "SDL_LockYUVOverlay", dynlib: LibName.}
+proc UnlockYUVOverlay*(Overlay: POverlay){.cdecl, 
+    importc: "SDL_UnlockYUVOverlay", dynlib: LibName.}
+  # Blit a video overlay to the display surface.
+  #  The contents of the video surface underneath the blit destination are
+  #  not defined.
+  #  The width and height of the destination rectangle may be different from
+  #  that of the overlay, but currently only 2x scaling is supported.
+proc DisplayYUVOverlay*(Overlay: POverlay, dstrect: PRect): int{.cdecl, 
+    importc: "SDL_DisplayYUVOverlay", dynlib: LibName.}
+  # Free a video overlay
+proc FreeYUVOverlay*(Overlay: POverlay){.cdecl, importc: "SDL_FreeYUVOverlay", 
+    dynlib: LibName.}
+  #------------------------------------------------------------------------------
+  # OpenGL Routines
+  #------------------------------------------------------------------------------
+  # Dynamically load a GL driver, if SDL is built with dynamic GL.
+  #
+  #  SDL links normally with the OpenGL library on your system by default,
+  #  but you can compile it to dynamically load the GL driver at runtime.
+  #  If you do this, you need to retrieve all of the GL functions used in
+  #  your program from the dynamic library using SDL_GL_GetProcAddress().
+  #
+  #  This is disabled in default builds of SDL.
+proc GL_LoadLibrary*(filename: cstring): int{.cdecl, 
+    importc: "SDL_GL_LoadLibrary", dynlib: LibName.}
+  # Get the address of a GL function (for extension functions)
+proc GL_GetProcAddress*(procname: cstring): Pointer{.cdecl, 
+    importc: "SDL_GL_GetProcAddress", dynlib: LibName.}
+  # Set an attribute of the OpenGL subsystem before intialization.
+proc GL_SetAttribute*(attr: TGLAttr, value: int): int{.cdecl, 
+    importc: "SDL_GL_SetAttribute", dynlib: LibName.}
+  # Get an attribute of the OpenGL subsystem from the windowing
+  #  interface, such as glX. This is of course different from getting
+  #  the values from SDL's internal OpenGL subsystem, which only
+  #  stores the values you request before initialization.
+  #
+  #  Developers should track the values they pass into SDL_GL_SetAttribute
+  #  themselves if they want to retrieve these values.
+proc GL_GetAttribute*(attr: TGLAttr, value: var int): int{.cdecl, 
+    importc: "SDL_GL_GetAttribute", dynlib: LibName.}
+  # Swap the OpenGL buffers, if double-buffering is supported.
+proc GL_SwapBuffers*(){.cdecl, importc: "SDL_GL_SwapBuffers", dynlib: LibName.}
+  # Internal functions that should not be called unless you have read
+  #  and understood the source code for these functions.
+proc GL_UpdateRects*(numrects: int, rects: PRect){.cdecl, 
+    importc: "SDL_GL_UpdateRects", dynlib: LibName.}
+proc GL_Lock*(){.cdecl, importc: "SDL_GL_Lock", dynlib: LibName.}
+proc GL_Unlock*(){.cdecl, importc: "SDL_GL_Unlock", dynlib: LibName.}
+  #* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+  #* These functions allow interaction with the window manager, if any.        *
+  #* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+  # Sets/Gets the title and icon text of the display window
+proc WM_GetCaption*(title: var cstring, icon: var cstring){.cdecl, 
+    importc: "SDL_WM_GetCaption", dynlib: LibName.}
+proc WM_SetCaption*(title: cstring, icon: cstring){.cdecl, 
+    importc: "SDL_WM_SetCaption", dynlib: LibName.}
+  # Sets the icon for the display window.
+  #  This function must be called before the first call to SDL_SetVideoMode().
+  #  It takes an icon surface, and a mask in MSB format.
+  #  If 'mask' is NULL, the entire icon surface will be used as the icon.
+proc WM_SetIcon*(icon: PSurface, mask: UInt8){.cdecl, importc: "SDL_WM_SetIcon", 
+    dynlib: LibName.}
+  # This function iconifies the window, and returns 1 if it succeeded.
+  #  If the function succeeds, it generates an SDL_APPACTIVE loss event.
+  #  This function is a noop and returns 0 in non-windowed environments.
+proc WM_IconifyWindow*(): int{.cdecl, importc: "SDL_WM_IconifyWindow", 
+                               dynlib: LibName.}
+  # Toggle fullscreen mode without changing the contents of the screen.
+  #  If the display surface does not require locking before accessing
+  #  the pixel information, then the memory pointers will not change.
+  #
+  #  If this function was able to toggle fullscreen mode (change from
+  #  running in a window to fullscreen, or vice-versa), it will return 1.
+  #  If it is not implemented, or fails, it returns 0.
+  #
+  #  The next call to SDL_SetVideoMode() will set the mode fullscreen
+  #  attribute based on the flags parameter - if SDL_FULLSCREEN is not
+  #  set, then the display will be windowed by default where supported.
+  #
+  #  This is currently only implemented in the X11 video driver.
+proc WM_ToggleFullScreen*(surface: PSurface): int{.cdecl, 
+    importc: "SDL_WM_ToggleFullScreen", dynlib: LibName.}
+  # Grabbing means that the mouse is confined to the application window,
+  #  and nearly all keyboard input is passed directly to the application,
+  #  and not interpreted by a window manager, if any.
+proc WM_GrabInput*(mode: TGrabMode): TGrabMode{.cdecl, 
+    importc: "SDL_WM_GrabInput", dynlib: LibName.}
+  #------------------------------------------------------------------------------
+  # mouse-routines
+  #------------------------------------------------------------------------------
+  # Retrieve the current state of the mouse.
+  #  The current button state is returned as a button bitmask, which can
+  #  be tested using the SDL_BUTTON(X) macros, and x and y are set to the
+  #  current mouse cursor position.  You can pass NULL for either x or y.
+proc GetMouseState*(x: var int, y: var int): UInt8{.cdecl, 
+    importc: "SDL_GetMouseState", dynlib: LibName.}
+  # Retrieve the current state of the mouse.
+  #  The current button state is returned as a button bitmask, which can
+  #  be tested using the SDL_BUTTON(X) macros, and x and y are set to the
+  #  mouse deltas since the last call to SDL_GetRelativeMouseState().
+proc GetRelativeMouseState*(x: var int, y: var int): UInt8{.cdecl, 
+    importc: "SDL_GetRelativeMouseState", dynlib: LibName.}
+  # Set the position of the mouse cursor (generates a mouse motion event)
+proc WarpMouse*(x, y: UInt16){.cdecl, importc: "SDL_WarpMouse", dynlib: LibName.}
+  # Create a cursor using the specified data and mask (in MSB format).
+  #  The cursor width must be a multiple of 8 bits.
+  #
+  #  The cursor is created in black and white according to the following:
+  #  data  mask    resulting pixel on screen
+  #   0     1       White
+  #   1     1       Black
+  #   0     0       Transparent
+  #   1     0       Inverted color if possible, black if not.
+  #
+  #  Cursors created with this function must be freed with SDL_FreeCursor().
+proc CreateCursor*(data, mask: PUInt8, w, h, hot_x, hot_y: int): PCursor{.cdecl, 
+    importc: "SDL_CreateCursor", dynlib: LibName.}
+  # Set the currently active cursor to the specified one.
+  #  If the cursor is currently visible, the change will be immediately
+  #  represented on the display.
+proc SetCursor*(cursor: PCursor){.cdecl, importc: "SDL_SetCursor", 
+                                  dynlib: LibName.}
+  # Returns the currently active cursor.
+proc GetCursor*(): PCursor{.cdecl, importc: "SDL_GetCursor", dynlib: LibName.}
+  # Deallocates a cursor created with SDL_CreateCursor().
+proc FreeCursor*(cursor: PCursor){.cdecl, importc: "SDL_FreeCursor", 
+                                   dynlib: LibName.}
+  # Toggle whether or not the cursor is shown on the screen.
+  #  The cursor start off displayed, but can be turned off.
+  #  SDL_ShowCursor() returns 1 if the cursor was being displayed
+  #  before the call, or 0 if it was not.  You can query the current
+  #  state by passing a 'toggle' value of -1.
+proc ShowCursor*(toggle: int): int{.cdecl, importc: "SDL_ShowCursor", 
+                                    dynlib: LibName.}
+proc BUTTON*(Button: int): int
+  #------------------------------------------------------------------------------
+  # Keyboard-routines
+  #------------------------------------------------------------------------------
+  # Enable/Disable UNICODE translation of keyboard input.
+  #  This translation has some overhead, so translation defaults off.
+  #  If 'enable' is 1, translation is enabled.
+  #  If 'enable' is 0, translation is disabled.
+  #  If 'enable' is -1, the translation state is not changed.
+  #  It returns the previous state of keyboard translation.
+proc EnableUNICODE*(enable: int): int{.cdecl, importc: "SDL_EnableUNICODE", 
+                                       dynlib: LibName.}
+  # If 'delay' is set to 0, keyboard repeat is disabled.
+proc EnableKeyRepeat*(delay: int, interval: int): int{.cdecl, 
+    importc: "SDL_EnableKeyRepeat", dynlib: LibName.}
+proc GetKeyRepeat*(delay: PInteger, interval: PInteger){.cdecl, 
+    importc: "SDL_GetKeyRepeat", dynlib: LibName.}
+  # Get a snapshot of the current state of the keyboard.
+  #  Returns an array of keystates, indexed by the SDLK_* syms.
+  #  Used:
+  #
+  #  UInt8 *keystate = SDL_GetKeyState(NULL);
+  #  if ( keystate[SDLK_RETURN] ) ... <RETURN> is pressed
+proc GetKeyState*(numkeys: PInt): PUInt8{.cdecl, importc: "SDL_GetKeyState", 
+    dynlib: LibName.}
+  # Get the current key modifier state
+proc GetModState*(): TMod{.cdecl, importc: "SDL_GetModState", dynlib: LibName.}
+  # Set the current key modifier state
+  #  This does not change the keyboard state, only the key modifier flags.
+proc SetModState*(modstate: TMod){.cdecl, importc: "SDL_SetModState", 
+                                   dynlib: LibName.}
+  # Get the name of an SDL virtual keysym
+proc GetKeyName*(key: TKey): cstring{.cdecl, importc: "SDL_GetKeyName", 
+                                      dynlib: LibName.}
+  #------------------------------------------------------------------------------
+  # Active Routines
+  #------------------------------------------------------------------------------
+  # This function returns the current state of the application, which is a
+  #  bitwise combination of SDL_APPMOUSEFOCUS, SDL_APPINPUTFOCUS, and
+  #  SDL_APPACTIVE.  If SDL_APPACTIVE is set, then the user is able to
+  #  see your application, otherwise it has been iconified or disabled.
+proc GetAppState*(): UInt8{.cdecl, importc: "SDL_GetAppState", dynlib: LibName.}
+  # Mutex functions
+  # Create a mutex, initialized unlocked
+proc CreateMutex*(): PMutex{.cdecl, importc: "SDL_CreateMutex", dynlib: LibName.}
+  # Lock the mutex  (Returns 0, or -1 on error)
+proc mutexP*(mutex: Pmutex): int{.cdecl, importc: "SDL_mutexP", dynlib: LibName.}
+proc LockMutex*(mutex: Pmutex): int
+  # Unlock the mutex  (Returns 0, or -1 on error)
+proc mutexV*(mutex: Pmutex): int{.cdecl, importc: "SDL_mutexV", dynlib: LibName.}
+proc UnlockMutex*(mutex: Pmutex): int
+  # Destroy a mutex
+proc DestroyMutex*(mutex: Pmutex){.cdecl, importc: "SDL_DestroyMutex", 
+                                   dynlib: LibName.}
+  # * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+  # Semaphore functions
+  # * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+  # Create a semaphore, initialized with value, returns NULL on failure.
+proc CreateSemaphore*(initial_value: UInt32): PSem{.cdecl, 
+    importc: "SDL_CreateSemaphore", dynlib: LibName.}
+  # Destroy a semaphore
+proc DestroySemaphore*(sem: Psem){.cdecl, importc: "SDL_DestroySemaphore", 
+                                   dynlib: LibName.}
+  # This function suspends the calling thread until the semaphore pointed
+  #  to by sem has a positive count. It then atomically decreases the semaphore
+  #  count.
+proc SemWait*(sem: Psem): int{.cdecl, importc: "SDL_SemWait", dynlib: LibName.}
+  # Non-blocking variant of SDL_SemWait(), returns 0 if the wait succeeds,
+  #   SDL_MUTEX_TIMEDOUT if the wait would block, and -1 on error.
+proc SemTryWait*(sem: Psem): int{.cdecl, importc: "SDL_SemTryWait", 
+                                  dynlib: LibName.}
+  # Variant of SDL_SemWait() with a timeout in milliseconds, returns 0 if
+  #   the wait succeeds, SDL_MUTEX_TIMEDOUT if the wait does not succeed in
+  #   the allotted time, and -1 on error.
+  #   On some platforms this function is implemented by looping with a delay
+  #   of 1 ms, and so should be avoided if possible.
+proc SemWaitTimeout*(sem: Psem, ms: UInt32): int{.cdecl, 
+    importc: "SDL_SemWaitTimeout", dynlib: LibName.}
+  # Atomically increases the semaphore's count (not blocking), returns 0,
+  #   or -1 on error.
+proc SemPost*(sem: Psem): int{.cdecl, importc: "SDL_SemPost", dynlib: LibName.}
+  # Returns the current count of the semaphore
+proc SemValue*(sem: Psem): UInt32{.cdecl, importc: "SDL_SemValue", 
+                                   dynlib: LibName.}
+  # * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+  # Condition variable functions
+  # * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+  # Create a condition variable
+proc CreateCond*(): PCond{.cdecl, importc: "SDL_CreateCond", dynlib: LibName.}
+  # Destroy a condition variable
+proc DestroyCond*(cond: PCond){.cdecl, importc: "SDL_DestroyCond", 
+                                dynlib: LibName.}
+  # Restart one of the threads that are waiting on the condition variable,
+  #   returns 0 or -1 on error.
+proc CondSignal*(cond: Pcond): int{.cdecl, importc: "SDL_CondSignal", 
+                                    dynlib: LibName.}
+  # Restart all threads that are waiting on the condition variable,
+  #  returns 0 or -1 on error.
+proc CondBroadcast*(cond: Pcond): int{.cdecl, importc: "SDL_CondBroadcast", 
+                                       dynlib: LibName.}
+  # Wait on the condition variable, unlocking the provided mutex.
+  #  The mutex must be locked before entering this function!
+  #  Returns 0 when it is signaled, or -1 on error.
+proc CondWait*(cond: Pcond, mut: Pmutex): int{.cdecl, importc: "SDL_CondWait", 
+    dynlib: LibName.}
+  # Waits for at most 'ms' milliseconds, and returns 0 if the condition
+  #  variable is signaled, SDL_MUTEX_TIMEDOUT if the condition is not
+  #  signaled in the allotted time, and -1 on error.
+  #  On some platforms this function is implemented by looping with a delay
+  #  of 1 ms, and so should be avoided if possible.
+proc CondWaitTimeout*(cond: Pcond, mut: Pmutex, ms: UInt32): int{.cdecl, 
+    importc: "SDL_CondWaitTimeout", dynlib: LibName.}
+  # * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+  # Condition variable functions
+  # * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+  # Create a thread
+proc CreateThread*(fn: PInt, data: Pointer): PThread{.cdecl, 
+    importc: "SDL_CreateThread", dynlib: LibName.}
+  # Get the 32-bit thread identifier for the current thread
+proc ThreadID*(): UInt32{.cdecl, importc: "SDL_ThreadID", dynlib: LibName.}
+  # Get the 32-bit thread identifier for the specified thread,
+  #  equivalent to SDL_ThreadID() if the specified thread is NULL.
+proc GetThreadID*(thread: PThread): UInt32{.cdecl, importc: "SDL_GetThreadID", 
+    dynlib: LibName.}
+  # Wait for a thread to finish.
+  #  The return code for the thread function is placed in the area
+  #  pointed to by 'status', if 'status' is not NULL.
+proc WaitThread*(thread: PThread, status: var int){.cdecl, 
+    importc: "SDL_WaitThread", dynlib: LibName.}
+  # Forcefully kill a thread without worrying about its state
+proc KillThread*(thread: PThread){.cdecl, importc: "SDL_KillThread", 
+                                   dynlib: LibName.}
+  #------------------------------------------------------------------------------
+  # Get Environment Routines
+  #------------------------------------------------------------------------------
+  #*
+  # * This function gives you custom hooks into the window manager information.
+  # * It fills the structure pointed to by 'info' with custom information and
+  # * returns 1 if the function is implemented.  If it's not implemented, or
+  # * the version member of the 'info' structure is invalid, it returns 0.
+  # *
+proc GetWMInfo*(info: PSysWMinfo): int{.cdecl, importc: "SDL_GetWMInfo", 
+                                        dynlib: LibName.}
+  #------------------------------------------------------------------------------
+  #SDL_loadso.h
+  #* This function dynamically loads a shared object and returns a pointer
+  # * to the object handle (or NULL if there was an error).
+  # * The 'sofile' parameter is a system dependent name of the object file.
+  # *
+proc LoadObject*(sofile: cstring): Pointer{.cdecl, importc: "SDL_LoadObject", 
+    dynlib: LibName.}
+  #* Given an object handle, this function looks up the address of the
+  # * named function in the shared object and returns it.  This address
+  # * is no longer valid after calling SDL_UnloadObject().
+  # *
+proc LoadFunction*(handle: Pointer, name: cstring): Pointer{.cdecl, 
+    importc: "SDL_LoadFunction", dynlib: LibName.}
+  #* Unload a shared object from memory *
+proc UnloadObject*(handle: Pointer){.cdecl, importc: "SDL_UnloadObject", 
+                                     dynlib: LibName.}
+  #------------------------------------------------------------------------------
+proc Swap32*(D: Uint32): Uint32
+  # Bitwise Checking functions
+proc IsBitOn*(value: int, bit: int8): bool
+proc TurnBitOn*(value: int, bit: int8): int
+proc TurnBitOff*(value: int, bit: int8): int
+# implementation
+
+proc TABLESIZE(table: cstring): int = 
+  Result = SizeOf(table) div SizeOf(table[0])
+
+proc OutOfMemory() = 
+  when not (defined(WINDOWS)): Error(ENOMEM)
+  
+proc RWSeek(context: PRWops, offset: int, whence: int): int = 
+  Result = context.seek(context, offset, whence)
+
+proc RWTell(context: PRWops): int = 
+  Result = context.seek(context, 0, 1)
+
+proc RWRead(context: PRWops, theptr: Pointer, size: int, n: int): int = 
+  Result = context.read(context, theptr, size, n)
+
+proc RWWrite(context: PRWops, theptr: Pointer, size: int, n: int): int = 
+  Result = context.write(context, theptr, size, n)
+
+proc RWClose(context: PRWops): int = 
+  Result = context.closeFile(context)
+
+proc LoadWAV(filename: cstring, spec: PAudioSpec, audio_buf: PUInt8, 
+             audiolen: PUInt32): PAudioSpec = 
+  Result = LoadWAV_RW(RWFromFile(filename, "rb"), 1, spec, audio_buf, audiolen)
+
+proc CDInDrive(status: TCDStatus): bool = 
+  Result = ord(status) > ord(CD_ERROR)
+
+proc FRAMES_TO_MSF(frames: int, M: var int, S: var int, F: var int) = 
+  var value: int
+  value = frames
+  F = value mod CD_FPS
+  value = value div CD_FPS
+  S = value mod 60
+  value = value div 60
+  M = value
+
+proc MSF_TO_FRAMES(M: int, S: int, F: int): int = 
+  Result = M * 60 * CD_FPS + S * CD_FPS + F
+
+proc VERSION(X: var TVersion) = 
+  X.major = MAJOR_VERSION
+  X.minor = MINOR_VERSION
+  X.patch = PATCHLEVEL
+
+proc VERSIONNUM(X, Y, Z: int): int = 
+  Result = X * 1000 + Y * 100 + Z
+
+proc COMPILEDVERSION(): int = 
+  Result = VERSIONNUM(MAJOR_VERSION, MINOR_VERSION, PATCHLEVEL)
+
+proc VERSION_ATLEAST(X, Y, Z: int): bool = 
+  Result = (COMPILEDVERSION() >= VERSIONNUM(X, Y, Z))
+
+proc LoadBMP(filename: cstring): PSurface = 
+  Result = LoadBMP_RW(RWFromFile(filename, "rb"), 1)
+
+proc SaveBMP(surface: PSurface, filename: cstring): int = 
+  Result = SaveBMP_RW(surface, RWFromFile(filename, "wb"), 1)
+
+proc BlitSurface(src: PSurface, srcrect: PRect, dst: PSurface, dstrect: PRect): int = 
+  Result = UpperBlit(src, srcrect, dst, dstrect)
+
+proc AllocSurface(flags: UInt32, width, height, depth: int, 
+                  RMask, GMask, BMask, AMask: UInt32): PSurface = 
+  Result = CreateRGBSurface(flags, width, height, depth, RMask, GMask, BMask, 
+                            AMask)
+
+proc MustLock(Surface: PSurface): bool = 
+  Result = ((surface^ .offset != 0) or
+      ((surface^ .flags and (HWSURFACE or ASYNCBLIT or RLEACCEL)) != 0))
+
+proc LockMutex(mutex: Pmutex): int = 
+  Result = mutexP(mutex)
+
+proc UnlockMutex(mutex: Pmutex): int = 
+  Result = mutexV(mutex)
+
+proc BUTTON(Button: int): int = 
+  Result = PRESSED shl (Button - 1)
+
+proc Swap32(D: Uint32): Uint32 = 
+  Result = ((D shl 24) or ((D shl 8) and 0x00FF0000) or
+      ((D shr 8) and 0x0000FF00) or (D shr 24))
+
+proc IsBitOn(value: int, bit: int8): bool = 
+  result = ((value and (1 shl ze(bit))) != 0)
+
+proc TurnBitOn(value: int, bit: int8): int = 
+  result = (value or (1 shl ze(bit)))
+
+proc TurnBitOff(value: int, bit: int8): int = 
+  result = (value and not (1 shl ze(bit)))