Intermec SG20T Scanner C# Development - Disable ConfigurationDialog()

Question

Hello, Using the sample application in the SDK 1.6 for Intermec scanners, when users click on connect, there is a dialog box with the list of the connected devices. The scanner is among them, and upon selection, everything works fine. I would like to be able to retrieve this list and automatically connect to one of the devices without the user seeing this dialog and having to select the scanner. I would like to select the scanner in the code automatically. How can this be achieved in C#? From another post I tried to use DeviceIOControl function but I get a NOT SUPPORTED error code. Thank you for your help,Diego  // test 1// this is an attempt to bypass the dialog box; does not workconst uint IO_ISDC_RS_COMPORT = 0x0000020D;
var inputBufferEmpty = new byte[0];
dllErrorCode = idscWrapper.DeviceIOControl(IO_ISDC_RS_COMPORT, inputBufferEmpty, outputBuffer, out nBytesReturned); // issue// I would like to set the scanner without retrieving the result of the dialog box; the dialog box should not even be displayedif (isScannerConnected == false)
    dllErrorCode = idscWrapper.ConfigurationDialog();    // ...

Answer 1

I also tried to Initialise() but this does not work better. I modified the C# sample to only show the dialog the first time and it worked. I perform several Disconnect() and Connect() while the application is open, dialog is not displayed and it works. However, if I hide the dialog (comment ConfigurationDialog()) and try to force the connection the first time application is launched, then I get an error, even if the USB scanner (SG20T in HID POS mode) is still connected on the same USB port. And I can't look into the library dll codes to understand what this ConfigurationDialog() function does exactly. Any help would be much appreciated.Thanks,Tiago