Function sdl2_sys::SDL_GL_SetAttribute

pub unsafe extern "C" fn SDL_GL_SetAttribute(
    attr: SDL_GLattr,
    value: c_int
) -> c_int

Set an OpenGL window attribute before window creation.

This function sets the OpenGL attribute attr to value. The requested attributes should be set before creating an OpenGL window. You should use SDL_GL_GetAttribute() to check the values after creating the OpenGL context, since the values obtained can differ from the requested ones.

\param attr an SDL_GLattr enum value specifying the OpenGL attribute to set \param value the desired value for the attribute \returns 0 on success or a negative error code on failure; call SDL_GetError() for more information.

\since This function is available since SDL 2.0.0.

\sa SDL_GL_GetAttribute \sa SDL_GL_ResetAttributes