gtk/icon_view.go
func (v *IconView) SetSelectionMode(mode SelectionMode) {
	C.gtk_icon_view_set_selection_mode(v.native(), C.GtkSelectionMode(mode))
}
func (v *IconView) SetSelectionMode(mode SelectionMode) {
	C.gtk_icon_view_set_selection_mode(v.native(), C.GtkSelectionMode(mode))
}
// func (v *IconView) SelectedForeach() {}
// SetSelectionMode is a wrapper around gtk_icon_view_set_selection_mode().