From 76f7e958141eabc6dc317189fa12c123584e1b6e Mon Sep 17 00:00:00 2001
From: slangmgh <37659406+slangmgh@users.noreply.github.com>
Date: Tue, 12 May 2020 01:17:37 +0800
Subject: Fix #14289 (#14304) [backport]

---
 lib/pure/asyncdispatch.nim | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'lib')

diff --git a/lib/pure/asyncdispatch.nim b/lib/pure/asyncdispatch.nim
index 1421db2e8..91778a5bc 100644
--- a/lib/pure/asyncdispatch.nim
+++ b/lib/pure/asyncdispatch.nim
@@ -1000,10 +1000,11 @@ when defined(windows) or defined(nimdoc):
   proc addProcess*(pid: int, cb: Callback) =
     ## Registers callback ``cb`` to be called when process with process ID
     ## ``pid`` exited.
+    const NULL = Handle(0)
     let p = getGlobalDispatcher()
     let procFlags = SYNCHRONIZE
     var hProcess = openProcess(procFlags, 0, pid.DWORD)
-    if hProcess == INVALID_HANDLE_VALUE:
+    if hProcess == NULL:
       raiseOSError(osLastError())
 
     var pcd = cast[PostCallbackDataPtr](allocShared0(sizeof(PostCallbackData)))
-- 
cgit 1.4.1-2-gfad0