gtk/icon_view.go
func (v *IconView) ItemActivated(path *TreePath) {
	C.gtk_icon_view_item_activated(v.native(), path.native())
}
func (v *IconView) ItemActivated(path *TreePath) {
	C.gtk_icon_view_item_activated(v.native(), path.native())
}
// ItemActivated is a wrapper around gtk_icon_view_item_activated().