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view docs/man3/SDL_PollEvent.3 @ 717:42ed44b2c8b6
Date: Sun, 14 Sep 2003 17:04:55 -0400
From: Philip D.S. Thoren <pthoren@cs.uml.edu>
Reply-To: "sdl@libsdl.org" <sdl@libsdl.org>
To: "sdl@libsdl.org" <sdl@libsdl.org>
Subject: [SDL] BUG in src/video/windx5/SDL_dx5events.c
I tracked down a bug that crashed my program on Windows *all* the
time.
FILE: src/video/windx5/SDL_dx5events.c
FUNCTION: handle_mouse
BUG:
SDL_PublicSurface is being dereferenced when it is NULL.
I added the following to the very begining of handle_mouse
and it solved my crashing problems:
if (SDL_PublicSurface == NULL) return;
~ Philip D.S. Thoren
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Mon, 15 Sep 2003 13:51:25 +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