Retrieving Serial Number of Scanner

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#1 Posted : Wednesday, October 6, 2021 11:03:17 AM(UTC)

crw

Groups: Registered
Posts: 1

Hello,

I am trying to retrieve the serial number of my scanner.
My scanner is capable of providing the serial number.

I have tried the following code but i am not getting the result i am needing.

Im coding in C#

Quote:

strSerialNumber = _twainSession.GetCapability(TwainCapabilityType.SerialNumber, TwainGetCapabilityMode.GetDefault).ToString();

System.Windows.MessageBox.Show(strSerialNumber);

I am getting Leadtools.Twain.TwainCapability as the result in my messagebox.


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#2 Posted : Tuesday, October 19, 2021 7:35:02 AM(UTC)

Hadi

Groups: Manager, Tech Support, Administrators
Posts: 218

Was thanked: 12 time(s) in 12 post(s)

Hello,

You need to know the type of capability it is and then access the value of that like so:

Code:

    var cap = _twainSession.GetCapability(TwainCapabilityType.SerialNumber, TwainGetCapabilityMode.GetDefault);
         var strSerialNumber = cap.OneValueCapability.Value.ToString();
         MessageBox.Show(strSerialNumber);

More information can be found here:
https://www.leadtools.co.../tw/twaincapability.html
https://www.leadtools.co...nonevaluecapability.html

Hadi Chami
Developer Support Manager
LEAD Technologies, Inc.

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