C# Definition:

    [StructLayout(LayoutKind.Sequential)]
    struct NMREBARCHEVRON
    {
        public NMHDR hdr;
        public int uBand;
        public int wID;
        public int lParam;
        public RECT rc;
        public int lParamNM;
    }

VB Definition:

    <StructLayout(LayoutKind.Sequential)> _
    Structure NMREBARCHEVRON
    Public hdr As NMHDR
    Public uBand As Integer
    Public wID As Integer
    Public lParam As Integer
    Public rc As RECT
    Public lParamNM As Integer
    End Structure