func (c *controlSingleObject) xsetParent(p *controlParent) {
// redrawing the new window handled by C.parent()
C.parent(c.id, p.id)
}
func basesetParent(c controlPrivate, p *controlParent) {
// redrawing the new window handled by C.parent()
C.parent(c.id(), p.id)
}
func (s *scroller) setParent(p *controlParent) {
C.parent(s.id, p.id)
}
func (s *spinbox) setParent(p *controlParent) {
C.parent(s.textfield(), p.id)
C.parent(s.stepper(), p.id)
}