view docs/man3/SDL_UpdateRect.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_UpdateRect" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" 
.SH "NAME"
SDL_UpdateRect\- Makes sure the given area is updated on the given screen\&.
.SH "SYNOPSIS"
.PP
\fB#include "SDL\&.h"
.sp
\fBvoid \fBSDL_UpdateRect\fP\fR(\fBSDL_Surface *screen, Sint32 x, Sint32 y, Sint32 w, Sint32 h\fR);
.SH "DESCRIPTION"
.PP
Makes sure the given area is updated on the given screen\&. The rectangle must be confined within the screen boundaries (no clipping is done)\&.
.PP
If \&'\fBx\fR\&', \&'\fBy\fR\&', \&'\fBw\fR\&' and \&'\fBh\fR\&' are all 0, \fBSDL_UpdateRect\fP will update the entire screen\&.
.PP
This function should not be called while \&'\fBscreen\fR\&' is \fIlocked\fR\&.
.SH "SEE ALSO"
.PP
\fI\fBSDL_UpdateRects\fP\fR, \fI\fBSDL_Rect\fR\fR, \fI\fBSDL_Surface\fR\fR, \fI\fBSDL_LockSurface\fP\fR
...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01