private void btnSetAndAcquire_Click(object sender, System.EventArgs e) { float fFrameLeft, fFrameTop, fFrameRight, fFrameBottom, frameTemp; try { fFrameLeft = Convert.ToSingle(edtFrameLeft.Text); fFrameTop = Convert.ToSingle(edtFrameTop.Text); fFrameRight = Convert.ToSingle(edtFrameRight.Text); fFrameBottom = Convert.ToSingle(edtFrameBottom.Text); if (fFrameLeft > fFrameRight) { frameTemp = fFrameLeft; fFrameLeft = fFrameRight; fFrameRight = frameTemp; } if (fFrameTop > fFrameBottom) { frameTemp = fFrameTop; fFrameTop = fFrameBottom; fFrameBottom = frameTemp; } } catch (Exception) { MessageBox.Show("Please input numerical values in the input boxes.", "Error"); return; } if (fFrameLeft == fFrameRight || fFrameTop == fFrameBottom) { MessageBox.Show("Input Value Error: don't make left equal to right, or top equal to bottom.", "Error"); return; } if (fFrameLeft < fDefaultFrameLeft || fFrameTop < fDefaultFrameTop || fFrameRight > fDefaultFrameRight || fFrameBottom > fDefaultFrameBottom) { DialogResult drImageLayout = MessageBox.Show("Input values are out of rangles,do you want to continue?", "Warning", MessageBoxButtons.YesNo); if (drImageLayout == System.Windows.Forms.DialogResult.Yes) { } else { return; } } if (m_TwainManager.SetImageLayout(new Margin(fFrameLeft, fFrameTop, fFrameRight, fFrameBottom)) == false) { MessageBox.Show("Fail to set image layout", "Error"); } else { m_TwainManager.IfShowUI = false; m_TwainManager.IfDisableSourceAfterAcquire = true; m_TwainManager.EnableSource(this as IAcquireCallback); } }
private void btnAcquire_Click(object sender, System.EventArgs e) { if (dlgFileSave.ShowDialog() == DialogResult.Cancel) { return; } strFileName = dlgFileSave.FileName; m_TwainManager.OpenSource(); try { m_TwainManager.TransferMode = Dynamsoft.TWAIN.Enums.TWICapSetupXFer.TWSX_FILE; } catch (Exception exp) { MessageBox.Show("The license for TWAIN module is invalid.Please contact [email protected] to get a trial license."); return; } //Since the TWSX_FILE mode is not required by TWAIN specification, //it is better to read the value back to see if the File transfer mode is supported by the Source if (m_TwainManager.TransferMode == Dynamsoft.TWAIN.Enums.TWICapSetupXFer.TWSX_FILE) { //the source supports the TWSX_FILE transfer mode. m_TwainManager.SetFileXFERInfo(strFileName, Dynamsoft.TWAIN.Enums.TWICapFileFormat.TWFF_BMP); //Sets file name and file format information. m_TwainManager.IfShowUI = false; m_TwainManager.IfDisableSourceAfterAcquire = true; m_TwainManager.EnableSource(this as IAcquireCallback); //Acquire the image. } else //the source doesn't support the TWSX_FILE transfer mode. { MessageBox.Show("The source doesn't support the DiskFile transfer mode."); } }