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Fixed bug #901 Tim Angus 2009-12-11 11:45:46 PST Disable mouse event generation when state is not SDL_APPMOUSEFOCUS If a Windows SDL application is minimised by using alt-tab, SDL_APPMOUSEFOCUS is lost as part of the minimisation. Unfortunately, the directx driver doesn't pay any attention to this state when generating mouse button events, so clicking on the Desktop can cause mouse clicks in the SDL application, while it's still minimised. The attached patch fixes this. It looks much more complicated than it actually is due to indentation; here it is ignoring whitespace: tma@abraxas:~/sources/SDL-1.2-svn$ svn diff -x -b Index: src/video/windx5/SDL_dx5events.c =================================================================== --- src/video/windx5/SDL_dx5events.c (revision 5376) +++ src/video/windx5/SDL_dx5events.c (working copy) @@ -374,10 +374,9 @@ if ( !(SDL_GetAppState() & SDL_APPMOUSEFOCUS) ) { mouse_lost = 1; ClipCursor(NULL); - } - + } else { /* If the mouse was lost, regain some sense of mouse state */ - if ( mouse_lost && (SDL_GetAppState() & SDL_APPMOUSEFOCUS) ) { + if ( mouse_lost ) { POINT mouse_pos; Uint8 old_state; Uint8 new_state; @@ -548,6 +547,7 @@ if ( xrel || yrel ) { post_mouse_motion(1, xrel, yrel); } + } } /* The main Win32 event handler */
author Sam Lantinga <slouken@libsdl.org>
date Mon, 14 Dec 2009 22:41:31 +0000
parents 355632dca928
children
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>SDL_PumpEvents</H1
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><H2
>Name</H2
>SDL_PumpEvents&nbsp;--&nbsp;Pumps the event loop, gathering events from the input devices.</DIV
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><PRE
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>#include "SDL.h"</PRE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>void <B
CLASS="FSFUNC"
>SDL_PumpEvents</B
></CODE
>(void);</CODE
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><H2
>Description</H2
><P
>Pumps the event loop, gathering events from the input devices.</P
><P
><TT
CLASS="FUNCTION"
>SDL_PumpEvents</TT
> gathers all the pending input information from devices and places it on the event queue. Without calls to <TT
CLASS="FUNCTION"
>SDL_PumpEvents</TT
> no events would ever be placed on the queue. Often calls the need for <TT
CLASS="FUNCTION"
>SDL_PumpEvents</TT
> is hidden from the user since <A
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><TT
CLASS="FUNCTION"
>SDL_PollEvent</TT
></A
> and <A
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><TT
CLASS="FUNCTION"
>SDL_WaitEvent</TT
></A
> implicitly call <TT
CLASS="FUNCTION"
>SDL_PumpEvents</TT
>. However, if you are not polling or waiting for events (e.g. you are filtering them), then you must call <TT
CLASS="FUNCTION"
>SDL_PumpEvents</TT
> to force an event queue update.</P
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