internal/graphicsdriver/opengl/gl/package_windows.go
func FenceSync(condition uint32, flags uint32) uintptr {
	ret, _, _ := syscall.Syscall(gpFenceSync, 2, uintptr(condition), uintptr(flags), 0)
	return (uintptr)(ret)
}
func FenceSync(condition uint32, flags uint32) uintptr {
	ret, _, _ := syscall.Syscall(gpFenceSync, 2, uintptr(condition), uintptr(flags), 0)
	return (uintptr)(ret)
}
// create a new sync object and insert it into the GL command stream