internal GCHandle SetSenseEventCallback(Csound6.SenseEventCallbackProxy callback)
{
GCHandle gch = FreezeCallbackInHeap(callback);
Csound6.NativeMethods.csoundRegisterSenseEventCallback(csound, callback);
return(gch);
}
/// <summary>
/// Registers a callback proxy (below) that transforms csound callbacks into .net events.
/// </summary>
/// <param name="callback"></param>
/// <returns></returns>
internal void SetSenseEventCallback <T>(Action <T> callback, T userData) where T : class
{
Csound6.SenseEventCallbackProxy cb = new Csound6.SenseEventCallbackProxy((csd, ptr) =>
{
GCHandle handle = GCHandle.Alloc(userData, GCHandleType.Pinned);
IntPtr p = (IntPtr)handle;
ptr = p;
callback?.Invoke(userData);
handle.Free();
});
GCHandle gch = FreezeCallbackInHeap(callback);
Csound6.NativeMethods.csoundRegisterSenseEventCallback(csound, cb);
//return gch;
}
