Mercurial > sdl-ios-xcode
view docs/man3/SDL_WasInit.3 @ 4393:9afe12fb4c41 SDL-1.2
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 | 1238da4a7112 |
children |
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line source
.TH "SDL_WasInit" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" .SH "NAME" SDL_WasInit \- Check which subsystems are initialized .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBUint32 \fBSDL_WasInit\fP\fR(\fBUint32 flags\fR); .SH "DESCRIPTION" .PP \fBSDL_WasInit\fP allows you to see which SDL subsytems have been \fIinitialized\fR\&. \fBflags\fR is a bitwise OR\&'d combination of the subsystems you wish to check (see \fI\fBSDL_Init\fP\fR for a list of subsystem flags)\&. .SH "RETURN VALUE" .PP \fBSDL_WasInit\fP returns a bitwised OR\&'d combination of the initialized subsystems\&. .SH "EXAMPLES" .PP .nf \f(CW /* Here are several ways you can use SDL_WasInit() */ /* Get init data on all the subsystems */ Uint32 subsystem_init; subsystem_init=SDL_WasInit(SDL_INIT_EVERYTHING); if(subsystem_init&SDL_INIT_VIDEO) printf("Video is initialized\&. "); else printf("Video is not initialized\&. "); /* Just check for one specfic subsystem */ if(SDL_WasInit(SDL_INIT_VIDEO)!=0) printf("Video is initialized\&. "); else printf("Video is not initialized\&. "); /* Check for two subsystems */ Uint32 subsystem_mask=SDL_INIT_VIDEO|SDL_INIT_AUDIO; if(SDL_WasInit(subsystem_mask)==subsystem_mask) printf("Video and Audio initialized\&. "); else printf("Video and Audio not initialized\&. "); \fR .fi .PP .SH "SEE ALSO" .PP \fI\fBSDL_Init\fP\fR, \fI\fBSDL_Subsystem\fP\fR .\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00