SDL_GL_SetAttribute
Section: SDL API Reference (3)Updated: Tue 11 Sep 2001, 23:01
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NAME
SDL_GL_SetAttribute - Set a special SDL/OpenGL attributeSYNOPSIS
#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; }
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Note:
The SDL_DOUBLEBUF 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.
SEE ALSO
SDL_GL_GetAttribute, GL Attributes
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Time: 04:45:50 GMT, September 16, 2022
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