TSDL_GLAttr

type TSDL_GLAttr = (

  SDL_GL_RED_SIZE,

  SDL_GL_GREEN_SIZE,

  SDL_GL_BLUE_SIZE,

  SDL_GL_ALPHA_SIZE,

  SDL_GL_BUFFER_SIZE,

  SDL_GL_DOUBLEBUFFER,

  SDL_GL_DEPTH_SIZE,

  SDL_GL_STENCIL_SIZE,

  SDL_GL_ACCUM_RED_SIZE,

  SDL_GL_ACCUM_GREEN_SIZE,

  SDL_GL_ACCUM_BLUE_SIZE,

  SDL_GL_ACCUM_ALPHA_SIZE,

  SDL_GL_STEREO,

  SDL_GL_MULTISAMPLEBUFFERS,

  SDL_GL_MULTISAMPLESAMPLES,

  SDL_GL_ACCELERATED_VISUAL,

  SDL_GL_SWAP_CONTROL

);