func Insert(ih, ref_child, new_child *Ihandle) *Ihandle {
result := C.IupInsert(ih.C(), ref_child.C(), new_child.C())
if result == nil {
return nil
}
return ih
}
func (h *Handle) Insert(ref_child, child IHandle) error {
if C.IupInsert(h.p, toNative(ref_child), toNative(child)) == nil {
return &Error{"IupInsert"}
}
return nil
}