BassVst.GetInfo does not work

[MillKaDe]

Function BassVst.GetInfo does not work.
Looks like the strings in struct BassVstInfo are not marshalled correctly.
In the unmanaged struct, the three strings are embedded directly in the struct.

This code works for me:

using SRI = System.Runtime.InteropServices;

[SRI.StructLayout (SRI.LayoutKind.Sequential)]
public struct bugfix_BassVstInfo {
  const int StrLen = 80; // 80 bytes, not 80 chars
  public int ChannelHandle, UniqueID;
  [SRI.MarshalAs (SRI.UnmanagedType.ByValTStr, SizeConst = StrLen)] public string _EffectName; // = string.Empty;
  public int EffectVersion, EffectVstVersion, HostVstVersion;
  [SRI.MarshalAs (SRI.UnmanagedType.ByValTStr, SizeConst = StrLen)] public string _ProductName; // = string.Empty;
  [SRI.MarshalAs (SRI.UnmanagedType.ByValTStr, SizeConst = StrLen)] public string _VendorName; // = string.Empty;
  public int VendorVersion, ChansIn, ChansOut, InitialDelay;
  [SRI.MarshalAs (SRI.UnmanagedType.Bool)] public bool HasEditor;
  public int EditorWidth, EditorHeight;
  public IntPtr AEffect; // = IntPtr.Zero;
  [SRI.MarshalAs (SRI.UnmanagedType.Bool)] public bool IsInstrument;
  public int DspHandle;
  public string EffectName => _EffectName ?? string.Empty;
  public string ProductName => _ProductName ?? string.Empty;
  public string VendorName => _VendorName ?? string.Empty;
  public override string ToString () => EffectName;
}

[SRI.DllImport ("bass_vst", EntryPoint = "BASS_VST_GetInfo")]
[return: SRI.MarshalAs (SRI.UnmanagedType.Bool)]
public static extern bool bugfix_BassVst_GetInfo (int vstHandle, out bugfix_BassVstInfo ret);

BassVstParamInfo seems to suffer from the same problem, but i have not tested that yet ..

[MathewSachin]

I'm currently unable to test BassVst, will be happy to accept a pull request.