OverlaySharp 1.0.2

OverlaySharp

A high-performance .NET library for creating transparent window overlays on a target process using OpenGL and SkiaSharp.

Fully compatible to be published as Native AOT(Windows).

Features

• Create a transparent window overlay on a target processes
• Hardware-accelerated rendering using OpenGL
• High-performance graphics with SkiaSharp
• Native AOT (Ahead of Time) compilation support
• Windows platform support
• Basic drawing of various shapes, images and text.

NuGet

.NET CLI

dotnet add package OverlaySharp

Package Reference

<PackageReference Include="OverlaySharp" Version="1.0.*" />

Requirements

• .NET 8
• A Windows environment
• A functioning OpenGL driver
  • This means you need a GPU - e.g. an integrated GPU (Intel), an NVIDIA GPU or AMD GPU, all of which should support OpenGL.

Examples

See the sample project.

Upon starting the overlay, you can draw on the target window by overriding the OnRender method.

public class YourClass(nint targetWindowHandle) : OverlayWindow(targetWindowHandle)
{
    public override void OnRender(IGraphics graphics)
    {
      // Perform drawing operations through IGraphics here...
    }
}

Contributing

Feel free to contribute! 🥸

Acknowledgments

• SkiaSharp
• OpenGL
• GameOverlay.Net