def enable_vsync():
	try:
		import ctypes
		import ctypes.util
		ogl = ctypes.cdll.LoadLibrary(ctypes.util.find_library("OpenGL"))
		v = ctypes.c_int(1)
		ogl.CGLSetParameter(ogl.CGLGetCurrentContext(), ctypes.c_int(222), ctypes.pointer(v))
	except:
		print("Unable to set vsync mode, using driver defaults")
		
def get_window_handle():
	return None
	
def get_window_rect(handle=None):
	pass