Manual Pages for UNIX Operating System command usage for man SDL_GL_SetAttribute

SDL API Reference                          SDL_GL_SetAttribute(3)



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;
     }

          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
















SDL            Last change: Tue 11 Sep 2001, 23:01              1