cairo/canvas.go
func (v *Context) GetTarget() *Surface {
	c := C.cairo_get_target(v.native())
	s := wrapSurface(c)
	s.reference()
	runtime.SetFinalizer(s, (*Surface).destroy)
	return s
}
func (v *Context) GetTarget() *Surface {
	c := C.cairo_get_target(v.native())
	s := wrapSurface(c)
	s.reference()
	runtime.SetFinalizer(s, (*Surface).destroy)
	return s
}
// GetTarget is a wrapper around cairo_get_target().