bool MouseIsOnTheAC_Symbol(MouseEventArgs Mouse, GMapMarker Marker) { GMapTargetandLabel MyMarker = (GMapTargetandLabel)Marker; Rectangle MyRectangle = new Rectangle(MyMarker.GetAC_SYMB_StartPoint().X - 1, MyMarker.GetAC_SYMB_StartPoint().Y - 1, 12, 12); return MyRectangle.Contains(new Point(Mouse.X, Mouse.Y)); }