2
http://www.opengl.org/registry/specs/EXT/wgl_swap_control.txt
3
int wglGetSwapIntervalEXT (void)
4
BOOL wglSwapIntervalEXT (int interval)
2
http://www.opengl.org/registry/specs/EXT/wgl_swap_control.txt
3
int wglGetSwapIntervalEXT (void)
4
BOOL wglSwapIntervalEXT (int interval)