HARDWAREINPUT

C# Definition:

[StructLayout(LayoutKind.Sequential)]
    internal struct HARDWAREINPUT
    {
        internal int uMsg;
        internal short wParamL;
        internal short wParamH;
    }

VB Definition:

Structure HARDWAREINPUT
  Public uMsg As Integer
  Public wParamL As Short
  Public wParamH As Short
End Structure