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Bug 3033

Summary: wrong events for key combos
Product: SDL Reporter: Stas Sergeev <stsp2>
Component: eventsAssignee: Sam Lantinga <slouken>
Status: RESOLVED INVALID QA Contact: Sam Lantinga <slouken>
Severity: critical    
Priority: P2    
Version: HG 2.0   
Hardware: x86_64   
OS: Linux   

Description Stas Sergeev 2015-06-24 16:13:55 UTC 
Hello.

Many key combinations, notable Alt-f1/Alt-f2,
do not generate right keydown even when f1/f2 is pressed.
This is a regression from SDL-1.2, which didn't have
any problems with that.

To reproduce, you need to modify the checkkeys test
this way:
---
diff -r b577c4753421 test/checkkeys.c
--- a/test/checkkeys.c	Sun Feb 22 20:34:08 2015 -0500
+++ b/test/checkkeys.c	Wed Jun 24 18:38:23 2015 +0300
@@ -189,6 +189,7 @@
     /* Creating the context creates the view, which we need to show keyboard */
     SDL_GL_CreateContext(window);
 #endif
+SDL_SetWindowGrab(window, SDL_TRUE);
 
     SDL_StartTextInput();
 
---

After that, run test, press Alt - the result is fine.
While holding Alt, press F1/F2 - it says that Alt was
repeated (hg version) or nothing at all happens (2.0.3 version).
Comment 1 Stas Sergeev 2015-06-26 21:29:50 UTC 
Needed to do
SDL_SetHint(SDL_HINT_GRAB_KEYBOARD, "1")
Sorry for noise.