private void btnScan_Click(object sender, EventArgs e)
{
//TwainOperation to = new TwainOperation(twnSession, txtSaveLocation.Text, format);
//to.Start();
Cursor current = this.Cursor;
this.Cursor = Cursors.WaitCursor;
RasterImage image = twnSession.AcquireToImage(TwainUserInterfaceFlags.Show | TwainUserInterfaceFlags.Modal);
using (RasterCodecs codecs = MainForm.GetRasterCodecs())
{
codecs.Save(image, txtSaveLocation.Text, format, 0);
}
image.Dispose();
this.Cursor = current;
this.DialogResult = DialogResult.OK;
this.Close();
}