Jezric Software

NetPlugHost

NetPlugHost wraps the Steinberg VST3 SDK in a small native DLL with a simple, flat C interface, and puts a C# library of safe, disposable types on top. A .NET application can load VST3 plugins, run audio through them and show their editors without touching C++ or the SDK's COM-style interfaces.

• Load and list plugins: open a .vst3 bundle and see the name, vendor, category and version of every effect and instrument inside.
• Process audio in 32-bit float, mono or stereo. The host negotiates the channel layout and never silently substitutes a different one.
• Parameters: list them with their names, units and defaults, and get or set values, even from the UI thread while audio is running.
• State: save and restore a plugin's complete settings.
• Editors: show a plugin's own interface inside any window you supply, including editors that resize themselves.
• Proven on real plugins from Native Instruments, Plugin Alliance, Arturia and others. PlugBrowser uses it to open the editors of nearly two hundred commercial plugins.

using NetPlugHost;

using var module = Vst3Module.Load(@"C:\Program Files\Common Files\VST3\Some Plugin.vst3");

foreach (var info in module.GetClasses())
    Console.WriteLine($"{info.Name} by {info.Vendor} ({info.Category})");

using var plugin = module.CreatePlugin(classIndex: 0);
plugin.Setup(sampleRate: 48000, maxBlockSize: 512, inputChannels: 2, outputChannels: 2);
plugin.SetActive(true);