protected override void OnMouseEnter(EventArgs e)
{
base.OnMouseEnter(e);
State = MouseStateRibbon.Over;
Invalidate();
}
protected override void OnMouseLeave(EventArgs e)
{
base.OnMouseLeave(e);
State = MouseStateRibbon.None;
Invalidate();
}
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
State = MouseStateRibbon.Down;
Invalidate();
}