Mercurial > sdl-ios-xcode
view docs/man3/SDL_JoyButtonEvent.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_JoyButtonEvent" "3" "Tue 11 Sep 2001, 22:59" "SDL" "SDL API Reference" .SH "NAME" SDL_JoyButtonEvent\- Joystick button event structure .SH "STRUCTURE DEFINITION" .PP .nf \f(CWtypedef struct{ Uint8 type; Uint8 which; Uint8 button; Uint8 state; } SDL_JoyButtonEvent;\fR .fi .PP .SH "STRUCTURE DATA" .TP 20 \fBtype\fR \fBSDL_JOYBUTTONDOWN\fP or \fBSDL_JOYBUTTONUP\fP .TP 20 \fBwhich\fR Joystick device index .TP 20 \fBbutton\fR Joystick button index .TP 20 \fBstate\fR \fBSDL_PRESSED\fP or \fBSDL_RELEASED\fP .SH "DESCRIPTION" .PP \fBSDL_JoyButtonEvent\fR is a member of the \fI\fBSDL_Event\fR\fR union and is used when an event of type \fBSDL_JOYBUTTONDOWN\fP or \fBSDL_JOYBUTTONUP\fP is reported\&. .PP A \fBSDL_JOYBUTTONDOWN\fP or \fBSDL_JOYBUTTONUP\fP event occurs when ever a user presses or releases a button on a joystick\&. The field \fBwhich\fR is the index of the joystick that reported the event and \fBbutton\fR is the index of the button (for a more detailed explaination see the \fIJoystick section\fR)\&. \fBstate\fR is the current state or the button which is either \fBSDL_PRESSED\fP or \fBSDL_RELEASED\fP\&. .SH "SEE ALSO" .PP \fI\fBSDL_Event\fR\fR, \fIJoystick Functions\fR, \fI\fBSDL_JoystickEventState\fP\fR, \fI\fBSDL_JoystickGetButton\fP\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 22:59