Emphasis.ScreenCapture

An extensible screen capture library written in C# using native APIs.

Getting started

The system is split in multiple packages. To install the main package you can use:

PM> Install Emphasis.ScreenCapture

For exporting the screen capture as System.Drawing.Bitmap you can install:

PM> Install Emphasis.ScreenCapture.Runtime.Windows.DXGI.Bitmap

And here is a code example how to get a screen capture:

var manager = new ScreenCaptureManager();
var screen = manager.GetScreens().FirstOrDefault();

using var capture = await manager.Capture(screen);
using var bitmap = await capture.ToBitmap();

bitmap.Save("capture.png");
var info = new ProcessStartInfo("capture.png") { UseShellExecute = true };
Process.Start(info);

The DXGI API requires that each frame is released before acquiring the next. Therefore make sure to dispose each IScreenCapture instance before capturing the next one.

Tests

To test screen capture run in the git folder:

dotnet test "src/Emphasis.ScreenCapture.sln" --filter Name~Capture_Bitmap