Motorola MC3190 barcode scanner not getting triggered

Question

I am trying to get my Motorola MC3190 read barcode. But unfortunately there is no response after pressing the hardware scan button. I am using EMDK for .net version 2.0.

Here is my code:

private void Form1_Load(object sender, EventArgs e)
        {
            // Get the first scanning device (Its named SCN1 in my device) 
            myDevice = Symbol.Barcode.Device.AvailableDevices[0];
            myReader = new Reader(myDevice);

            // Make sure the Code-128 decoder is enabled!
            myReader.Decoders.CODE128.Enabled = true;

            // Create an instance of reader
            myReaderData = new Symbol.Barcode.ReaderData(Symbol.Barcode.ReaderDataTypes.Text, Symbol.Barcode.ReaderDataLengths.MaximumLabel);

            // Set the event handler
            myReader.ReadNotify += new EventHandler(myReader_ReadNotify);

            // enable and get ready to read
            myReader.Actions.Enable();
            myReader.Actions.Read(myReaderData);
        }

In my event, I am simply trying to get the decoded text displayed:

void myReader_ReadNotify(object sender, EventArgs e)
        {
            Symbol.Barcode.ReaderData nextReaderData = myReader.GetNextReaderData();
            this.listBox1.Items.Add(nextReaderData.Text);            
            switch (nextReaderData.Result)
            {
                case Symbol.Results.SUCCESS:
                    this.listBox1.Items.Add(nextReaderData.Text);
                    myReader.Actions.Read(myReaderData);
                    break;

                case Symbol.Results.CANCELED:
                    this.listBox1.Items.Add("Canceled!!");
                    break;

                default:
                    string sMsg = "Read Failed\n"
                    + "Result = "
                    + ((int)nextReaderData.Result).ToString("X8");
                    MessageBox.Show(sMsg, "ReadNotify");
                    break;
            }


        }

I do not get any error messages. At the same time, if I list my available scan devices, I am able to see my device namely (SCN1). Is there anything special I need to do to trigger the hardware key?

Any help / ideas to resolving this issue is highly appreciated. Thanks!

Answer 1

Sometimes the motorola units come installed with the DataWedge application. It can claim access to the scanner and cause a number of issues when using the EMDK. Make sure it is disabled or uninstall it.