Some customers have reported difficulty in using our Barcode ActiveX Control (or any other AcitveX control) in a WPF application using Visual Studio 2010. The below error may appear, or the control might not be available.
Unable to get the window handle for the 'AxTALBarCd' control. Windowless ActiveX controls are not supported.
To properly host an ActiveX control in a WPF application, please follow Microsoft's official documentation for your version of .NET.
Link to Microsoft's Example: Walkthrough: Hosting an ActiveX Control in WPF