C# API (AR51.Net) release notes

Release notes for the AR 51 C# API (AR51.Net), the .NET library that connects your own software to an AR 51 system. Newest release first.

Get it

Install with dotnet add package AR51.Net from nuget.org — or download the package from the download page. See Install & quickstart.

3.0.3.2R

First release · NuGet package 3.0.302 · .NET 8 and .NET 10 · Windows and Linux (x64) · tested with AR 51 server 3.2.0 and 3.2.1

The first release of the AR 51 C# API: connect any .NET 8+ application to an AR 51 system, with no game engine.

Connecting

• AR51Client.Create() finds the AR 51 server on the local network automatically, or connects to a host you give.
• Reconnects by itself when a server restarts or the network drops, and detects a silently dead server within seconds.
• ConnectionStateChanged reports Connecting, Connected and Disconnected.

Live data

• Skeletons: 25 body joints in meters with per-joint confidence, hands (23 joints) from hand-tracking headsets, the registered person's name and headset, capture and receive times.
• Object detection: tracked objects with position and rotation.
• Receive with events or with await foreach.

System control

• Servers: status of every AR 51 machine; launch, quit, force-quit and relaunch the server program; start and stop tracking.
• Cameras: list with calibration values; live JPEG preview sized to your view; image settings (exposure, gain, gamma, color balance, rotate, exclude from tracking); color-balance auto-tune.
• Calibration: start and stop camera calibration, with live progress and error and the result; read and set the tracked area.
• Recording: record tracking data and video from the cameras you choose, at each camera's own resolution.
• Devices: connected headsets, apps and phones, with battery levels.

Good to know

• Everything is thread-safe; use one client per application.
• Errors are reported as AR51Exception with an ErrorCode.

See the C# API documentation and the API reference.