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