The pqScan .net barcode reader component can be compatiblewith any .net project. So you can not only integrate our .net barcode reader library in WPF project, but also Winforms, asp.net web site applications.
If you want to add barcode scanning feature in the WPF program, it's really similar to the Windows forms application. They are both desktop projects, have the similar UI control layout and event. So you may insert the C# code of barcode reading feature to the button click event or MainWindowinitialization method.
Please look at the C# example code below. It's almost the same as the sample in any other Winforms projects. Before your starting, please download our trial version barcode reader SDK, and add it to the project reference.
Bitmap image = Bitmap.FromFile("barcode-image.jpg");
BarcodeResult results = BarCodeScanner.Scan(image);
Hope the C# code can be helpful.
---- pqScan Support Team