gtk/menu_since_3_22.go
func (v *Menu) PopupAtPointer(triggerEvent *gdk.Event) {
	e := (*C.GdkEvent)(unsafe.Pointer(triggerEvent.Native()))
	C.gtk_menu_popup_at_pointer(v.native(), e)
}
func (v *Menu) PopupAtPointer(triggerEvent *gdk.Event) {
	e := (*C.GdkEvent)(unsafe.Pointer(triggerEvent.Native()))
	C.gtk_menu_popup_at_pointer(v.native(), e)
}
// PopupAtPointer() is a wrapper for gtk_menu_popup_at_pointer(), on older versions it uses PopupAtMouseCursor