C# Definition:

[StructLayout(LayoutKind.Sequential)]
    struct IMAGEINFO
    {
    public IntPtr hbmImage;
    public IntPtr hbmMask;
    public int Unused1;
    public int Unused2;
    public RECT rcImage;
    }

VB Definition:

<StructLayout(LayoutKind.Sequential)> _
Public Struct IMAGEINFO
      Public hbmImage As IntPtr
      Public hbmMask As IntPtr
      Public Unused1 As Integer
      Public Unused2 As Integer
      Public rcImage As RECT
End Class