public IntermecBarcodescanControl()
{
InitializeComponent();
try
{
addLog("IntermecBarcodescanControl: setHWTrigger(true)...");
//enable HW trigger, a workaround as HW trigger is sometimes disabled on BarcodeReader.Dispose()
//if (!S9CconfigClass.S9Cconfig.HWTrigger.setHWTrigger(true))
//{
// addLog("IntermecBarcodescanControl: setHWTrigger(true)...FAILED. Trying again");
// Thread.Sleep(50);
// S9CconfigClass.S9Cconfig.HWTrigger.setHWTrigger(true); //try again
//}
//replaced above code with the following, there were problems with load/unload the ADCComInterface inside S9CConfig
YetAnotherHelperClass.setHWTrigger(true);
//change number of good read beeps to zero
YetAnotherHelperClass.setNumberOfGoodReadBeeps(0);
addLog("IntermecBarcodescanControl: mapKey()...");
//we need full control of scan start and end
ITCTools.KeyBoard.mapKey();
}
catch (Exception ex)
{
addLog("Exception in IntermecBarcodescanControl: setHWTrigger(true)..." + ex.Message);
}
try
{
addLog("IntermecBarcodescanControl: new BarcodeReader()...");
bcr = new BarcodeReader(this, "default");// ();
addLog("IntermecBarcodescanControl: BarcodeReader adding event handlers...");
bcr.BarcodeRead += new BarcodeReadEventHandler(bcr_BarcodeRead);
bcr.BarcodeReadCanceled += new BarcodeReadCancelEventHandler(bcr_BarcodeReadCanceled);
bcr.BarcodeReadError += new BarcodeReadErrorEventHandler(bcr_BarcodeReadError);
addLog("IntermecBarcodescanControl: starting named event watch thread...");
waitThread = new System.Threading.Thread(waitLoop);
waitThread.Start();
addLog("IntermecBarcodescanControl: enabling Scanner...");
bcr.ScannerEnable = true;
addLog("IntermecBarcodescanControl: ScannerOn=false...");
bcr.ScannerOn = false;
}
catch (BarcodeReaderException ex)
{
bcr = null;
System.Diagnostics.Debug.WriteLine("BarcodeReaderException in IntermecScanControl(): " + ex.Message);
}
catch (Exception ex)
{
bcr = null;
System.Diagnostics.Debug.WriteLine("Exception in IntermecScanControl(): " + ex.Message);
}
if (bcr == null)
{
addLog("IntermecBarcodescanControl: BarcodeReader init FAILED");
throw new System.IO.FileNotFoundException("Intermec.Datacollection.dll or ITCScan.DLL missing");
}
}
public new void Dispose()
{
addLog("IntermecScanControl Dispose()...");
_continueWait = false; //signal thread to stop
SystemEvent waitEvent = new SystemEvent("EndWaitLoop52", false, false);
waitEvent.PulseEvent();
System.Threading.Thread.Sleep(100);
if (bcr != null)
{
addLog("IntermecScanControl Dispose(): Calling ScannerOnOff(false)...");
scannerOnOff(false);
addLog("IntermecScanControl Dispose(): Disposing BarcodeReader...");
//bcr.ThreadedRead(false);
bcr.BarcodeRead -= bcr_BarcodeRead;
bcr.Dispose();
bcr = null;
addLog("IntermecScanControl Dispose(): BarcodeReader disposed");
}
try
{
addLog("IntermecScanControl Dispose(): enabling HardwareTrigger...");
//replaced this call as ADCComInterface made problems
//S9CconfigClass.S9Cconfig.HWTrigger.setHWTrigger(true);
YetAnotherHelperClass.setHWTrigger(true);
YetAnotherHelperClass.setNumberOfGoodReadBeeps(1);
}
catch (Exception ex)
{
addLog("IntermecScanControl Dispose(), Exception: enabling HardwareTrigger: " + ex.Message);
}
addLog("IntermecScanControl Dispose(): restoring Scan Button Key...");
ITCTools.KeyBoard.restoreKey();
addLog("IntermecScanControl Dispose(): ending Threads...");
if (waitThread != null)
{
addLog("IntermecScanControl Dispose(): ending event watch thread ...");
waitThread.Abort();
}
if (readThread != null)
{
addLog("IntermecScanControl Dispose(): ending Barcode reading thread ...");
readThread.Abort();
}
addLog("...IntermecScanControl Dispose(): end.");
//base.Dispose(); do not use!!
}