| .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 |
