Mercurial > sdl-ios-xcode
view docs/man3/SDL_PollEvent.3 @ 852:2651b6b43840
Quartz fix:
ut2004 makes a 2D window for the splash screen, which sets the screen
surface's pixels field. Then we tear down that video mode and create a GL
context, and the Quartz target isn't resetting the pixels field to NULL.
When you just create a GL window, the structure is memset'd to zero the
first time through, so unless you hit ut2004's codepath, you won't see the
bug. :)
Without this patch, quitting a windowed ut2003/ut2004 game makes the OS dump a
warning about a bogus free() to stderr, but it doesn't actually crash. All we
need to do is explicitly initialize the current->pixels field.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Tue, 24 Feb 2004 06:53:22 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
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.TH "SDL_PollEvent" "3" "Tue 11 Sep 2001, 22:59" "SDL" "SDL API Reference" .SH "NAME" SDL_PollEvent\- Polls for currently pending events\&. .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBint \fBSDL_PollEvent\fP\fR(\fBSDL_Event *event\fR); .SH "DESCRIPTION" .PP Polls for currently pending events, and returns \fB1\fR if there are any pending events, or \fB0\fR if there are none available\&. .PP If \fBevent\fR is not \fBNULL\fP, the next event is removed from the queue and stored in that area\&. .SH "EXAMPLES" .PP .PP .nf \f(CWSDL_Event event; /* Event structure */ \&. \&. \&. /* Check for events */ while(SDL_PollEvent(&event)){ /* Loop until there are no events left on the queue */ switch(event\&.type){ /* Process the appropiate event type */ case SDL_KEYDOWN: /* Handle a KEYDOWN event */ printf("Oh! Key press "); break; case SDL_MOUSEMOTION: \&. \&. \&. default: /* Report an unhandled event */ printf("I don\&'t know what this event is! "); } }\fR .fi .PP .SH "SEE ALSO" .PP \fI\fBSDL_Event\fR\fR, \fI\fBSDL_WaitEvent\fP\fR, \fI\fBSDL_PeepEvents\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59