Mercurial > sdl-ios-xcode
view docs/man3/SDL_GL_SetAttribute.3 @ 2938:2929ed239d2a
Adjusted default choice of audio driver.
If a driver can definitely see available devices, it is chosen. Otherwise,
we'll take the first driver that initializes but saw no devices...this might
be because it can't enumerate them, or there really aren't any available.
This prevents the dsp driver from hogging control when there are no /dev/dsp*
nodes (for example, on a Linux box with ALSA and no OSS emulation).
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Thu, 01 Jan 2009 07:54:58 +0000 |
| parents | 546f7c1eb755 |
| children | 1238da4a7112 |
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.TH "SDL_GL_SetAttribute" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" .SH "NAME" SDL_GL_SetAttribute \- Set a special SDL/OpenGL attribute .SH "SYNOPSIS" .PP \fB#include "SDL\&.h" .sp \fBint \fBSDL_GL_SetAttribute\fP\fR(\fBSDL_GLattr attr, int value\fR); .SH "DESCRIPTION" .PP Sets the OpenGL \fIattribute\fR \fBattr\fR to \fBvalue\fR\&. The attributes you set don\&'t take effect until after a call to \fI\fBSDL_SetVideoMode\fP\fR\&. You should use \fI\fBSDL_GL_GetAttribute\fP\fR to check the values after a \fBSDL_SetVideoMode\fP call\&. .SH "RETURN VALUE" .PP Returns \fB0\fR on success, or \fB-1\fR on error\&. .SH "EXAMPLE" .PP .nf \f(CWSDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 ); SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 5 ); SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 ); SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 ); SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 ); if ( (screen=SDL_SetVideoMode( 640, 480, 16, SDL_OPENGL )) == NULL ) { fprintf(stderr, "Couldn\&'t set GL mode: %s ", SDL_GetError()); SDL_Quit(); return; }\fR .fi .PP .PP .RS \fBNote: .PP The \fBSDL_DOUBLEBUF\fP flag is not required to enable double buffering when setting an OpenGL video mode\&. Double buffering is enabled or disabled using the SDL_GL_DOUBLEBUFFER attribute\&. .RE .SH "SEE ALSO" .PP \fI\fBSDL_GL_GetAttribute\fP\fR, \fIGL Attributes\fR ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01