| Re: [AD] filtering out OS key handling |
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- To: "Coordination of admins/developers of the game programming library Allegro" <alleg-developers@xxxxxxxxxx>
- Subject: Re: [AD] filtering out OS key handling
- From: Matthew Leverton <meffer@xxxxxxxxxx>
- Date: Mon, 24 Aug 2009 22:52:57 -0500
On Mon, Aug 17, 2009 at 10:12 PM, Matthew Leverton<meffer@xxxxxxxxxx> wrote:
> There needs to be a way to optionally filter out the OS handling of
> keys in A5. For instance, in Windows in a windowed mode, the following
> happens:
>
Given the lack of interest, attached is a patch that simply prevents
Windows from intercepting the ALT key for use with system menus. For
99.99% of Allegro programs this would be the desired behavior.
Any other system sequence involving ALT will continue to function as
normal (ALT-Tab, ALT-F4, etc).
--
Matthew Leverton
Index: 4.9/src/win/wnewwin.c
===================================================================
--- 4.9/src/win/wnewwin.c (revision 12508)
+++ 4.9/src/win/wnewwin.c (working copy)
@@ -498,6 +498,11 @@
((wParam & 0xfff0) == SC_MONITORPOWER || (wParam & 0xfff0) == SC_SCREENSAVE)) {
return 0;
}
+ else if ((wParam & 0xfff0) == SC_KEYMENU) {
+ /* Prevent Windows from intercepting the ALT key.
+ (Disables opening menus via the ALT key.) */
+ return 0;
+ }
break;
}
case WM_PAINT: {