cairo/surface.go
func (v *Surface) GetDeviceOffset() (x, y float64) {
	var xOffset, yOffset C.double
	C.cairo_surface_get_device_offset(v.native(), &xOffset, &yOffset)
	return float64(xOffset), float64(yOffset)
}
func (v *Surface) GetDeviceOffset() (x, y float64) {
	var xOffset, yOffset C.double
	C.cairo_surface_get_device_offset(v.native(), &xOffset, &yOffset)
	return float64(xOffset), float64(yOffset)
}
// GetDeviceOffset is a wrapper around cairo_surface_get_device_offset().