NAME¶

SDL_GL_SetAttribute - Set a special SDL/OpenGL attribute

SYNOPSIS¶

#include "SDL.h"

int SDL_GL_SetAttribute(SDL_GLattr attr, int value);

DESCRIPTION¶

Sets the OpenGL attribute attr to value. The attributes you set don't take effect until after a call to SDL_SetVideoMode. You should use SDL_GL_GetAttribute to check the values after a SDL_SetVideoMode call.

RETURN VALUE¶

Returns 0 on success, or -1 on error.

EXAMPLE¶

SDL_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;
}

SEE ALSO¶

SDL_GL_GetAttribute, GL Attributes