gtk/icon_view.go
func IconViewNewWithModel(model ITreeModel) (*IconView, error) {
	c := C.gtk_icon_view_new_with_model(model.toTreeModel())
	if c == nil {
		return nil, nilPtrErr
	}
	obj := glib.Take(unsafe.Pointer(c))
	return wrapIconView(obj), nil
}
func IconViewNewWithModel(model ITreeModel) (*IconView, error) {
	c := C.gtk_icon_view_new_with_model(model.toTreeModel())
	if c == nil {
		return nil, nilPtrErr
	}
	obj := glib.Take(unsafe.Pointer(c))
	return wrapIconView(obj), nil
}
// IconViewNewWithModel is a wrapper around gtk_icon_view_new_with_model().