private void ShowRubberBand()
{
using (RubberBand rbf = new RubberBand(this))
{
rbf.ShowDialog();
Size sLastSize = rbf.lastSize;
if (sLastSize.Width > 0 && sLastSize.Height > 0)
{
Rectangle r = new Rectangle();
r.Location = rbf.lastLoc;
r.Size = sLastSize;
CaptureBitmap(r);
}
}
this.Show();
}