private void AcquireButton_Click(object sender, EventArgs e) { try { EnableCapabilitiesUI(false); twainDevice.StartSession(); if (imageXView1.Image != null) { AcceptImageButton.Enabled = PageTextBox.Enabled = true; } } catch (TwainException ex) { MessageBox.Show(String.Format(Constants.twainErrorString, (int)ex.ConditionCode, ex.ConditionDescription), Constants.acquireErrorString, MessageBoxButtons.OK, MessageBoxIcon.Error); } catch (SequenceException ex) { MessageBox.Show(ex.Message, Constants.acquireErrorString, MessageBoxButtons.OK, MessageBoxIcon.Error); } }