ComfileTech.ComfilePi.QrCodeDemo

This is a .NET WinForms application to demonstrate QR code scanning on COMFILE Technology's ComfilePi industrial touchscreen panel PCs, and how to program it.

The application displays a live camera preview, scans the preview frames for QR codes, and displays the decoded QR code text.

Execution on a ComfilePi panel PC uses ComfileTech.WinForms so the WinForms application can run on Linux. The project targets net10.0 for Linux deployment and net10.0-windows for Windows development and designer support.

This application uses the following native Linux components:

• GStreamer, using gst-launch-1.0
• libcamera, using the GStreamer libcamerasrc element
• ZBar, using libzbar.so.0

This application uses the following .NET library to run WinForms on Linux:

• ComfileTech.WinForms

Deploying to a ComfilePi Panel PC

Publish the application for the Linux ARM64 target using the included linux-arm64 publish profile or the following command:

dotnet publish ComfileTech.ComfilePi.QrCodeDemo/ComfileTech.ComfilePi.QrCodeDemo.csproj -f net10.0 -r linux-arm64

Copy the published files to the ComfilePi panel PC and run the application from the device.

Designer Support in Visual Studio

The project multi-targets net10.0-windows and net10.0. Visual Studio uses the Windows target for WinForms designer support, while the Linux net10.0 target uses ComfileTech.WinForms for deployment to the ComfilePi.