private void button2_Click(object sender, EventArgs e)
{
Rectangle r = RegionSelector.showDialog(sX.Value, sY.Value, sW.Value, sH.Value);
sX.Value = r.X;
sY.Value = r.Y;
sW.Value = r.Width;
sH.Value = r.Height;
}
private void button1_Click(object sender, EventArgs e)
{
Rectangle r = RegionSelector.showDialog(tX.Value, tY.Value, tW.Value, tH.Value);
tX.Value = r.X;
tY.Value = r.Y;
tW.Value = r.Width;
tH.Value = r.Height;
}