allow buttons to interrupt events

Most button onpress1 handlers will want to return true.

1 files changed, 1 insertions, 1 deletions

diff --git a/button.lua b/button.lua
index 5042ae6..66a2c00 100644
--- a/button.lua
+++ b/button.lua
@@ -15,7 +15,7 @@ function propagate_to_button_handlers(x, y, mouse_button)
   for _,ev in ipairs(Button_handlers) do
     if x>ev.x and x<ev.x+ev.w and y>ev.y and y<ev.y+ev.h then
       if ev.onpress1 and mouse_button == 1 then
-        ev.onpress1()
+        return ev.onpress1()
       end
     end
   end