BarcodeScannerProvider

topic	languages	products
sample	csharp cpp cppcx	windows windows-uwp

Barcode scanner provider sample

Demonstrates a basic OCR-based barcode scanner provider.

Note: This sample is part of a large collection of UWP feature samples. If you are unfamiliar with Git and GitHub, you can download the entire collection as a ZIP file, but be sure to unzip everything to access shared dependencies. For more info on working with the ZIP file, the samples collection, and GitHub, see Get the UWP samples from GitHub. For more samples, see the Samples portal on the Windows Dev Center.

This sample shows how to:

1. Register as a barcode scanner provider

   The sample declares the windows.barcodeScannerProvider extension in the application manifest. It also declares the cameraProcessingExtension restricted capability which permits the app to process images captured from the camera without direct camera control.

2. Respond to inbound connections

   The BarcodeDecodeTask runs when an inbound connection is created. The Provider registers for the necessary events in order to provide barcode scanning services to the connection. When the software trigger starts, the provider performs OCR on captured frames and reports the results.

3. Configure the barcode scanner provider

   When the user runs the app, it allows the user to configure the language used for OCR.

You can use the Barcode Scanner sample to test the sample barcode sample provider. Go to the "Displaying a Barcode Preview" scenario and select the Barcode Scanner Provider Sample as your barcode scanner.

Note The Universal Windows app samples require Visual Studio 2017 to build and Windows 10 to execute.

To obtain information about Windows 10 development, go to the Windows Dev Center

To obtain information about Microsoft Visual Studio and the tools for developing Windows apps, go to Visual Studio

Related topics

Samples

Barcode Scanner

Reference

Windows.Devices.PointOfService namespace
Windows app samples

System requirements

Client: Windows 10

Server: Windows Server 2016 Technical Preview

Phone: Windows 10

Build the sample

1. If you download the samples ZIP, be sure to unzip the entire archive, not just the folder with the sample you want to build.
2. Start Microsoft Visual Studio 2017 and select File > Open > Project/Solution.
3. Starting in the folder where you unzipped the samples, go to the Samples subfolder, then the subfolder for this specific sample, then the subfolder for your preferred language (C++, C#, or JavaScript). Double-click the Visual Studio Solution (.sln) file.
4. Press Ctrl+Shift+B, or select Build > Build Solution.

Run the sample

The next steps depend on whether you just want to deploy the sample or you want to both deploy and run it.

Deploying the sample

• Select Build > Deploy Solution.

Deploying and running the sample

• To debug the sample and then run it, press F5 or select Debug > Start Debugging. To run the sample without debugging, press Ctrl+F5 or selectDebug > Start Without Debugging.