C# Definition:

    [StructLayout(LayoutKind.Sequential)]
    public struct MENUINFO
    {
    public UInt32 cbSize;
    public UInt32 fMask;
    public UInt32 dwStyle;
    public uint cyMax;
    public IntPtr hbrBack;
    public UInt32 dwContextHelpID;
    public UIntPtr dwMenuData;
    }
   [StructLayout(LayoutKind.Sequential)]
   struct MENUINFO {
    public Int32 cbSize;
    public Int32 fMask;
    public Int32 dwStyle;
    public Int32 cyMax;
    public IntPtr hbrBack;
    public Int32 dwContextHelpID;
    public Int32 dwMenuData;
    }

VB Definition:

    Private Structure MENUINFO
    Dim cbSize As Int32
    Dim fMask As Int32
    Dim dwStyle As Int32
    Dim cyMax As Int32
    Dim hbrBack As IntPtr
    Dim dwContextHelpID As Int32
    Dim dwMenuData As Int32
    Public Sub New(ByVal owner As Control)
        cbSize = Marshal.SizeOf(GetType(MENUINFO))
    End Sub
    End Structure

User-Defined Field Types:

None.

Notes:

None.

Sample Code:

MENUINFO mi = new MENUINFO();

mi.cbSize = System.Runtime.InteropServices­.Marshal.SizeOf(typeof(MENUINF­O));

The above don't work on x64 Vista. This one does.

    [StructLayout(LayoutKind.Sequential)]
    public struct MENUINFO
    {
    public UInt32 cbSize;
    public UInt32 fMask;
    public UInt32 dwStyle;
    public uint cyMax;
    public IntPtr hbrBack;
    public UInt32 dwContextHelpID;
    public UIntPtr dwMenuData;
    }

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