GetMenuString (user32)
Last changed: NetMage-


C# Signature:

static extern int GetMenuString(IntPtr hMenu, uint uIDItem,
   [Out] StringBuilder lpString, int nMaxCount, uint uFlag);

User-Defined Types:

Constants used for flags:

internal const UInt32 MF_BYCOMMAND    =0x00000000;
internal const UInt32 MF_BYPOSITION   =0x00000400;



in Handle to the menu.


in Specifies the menu item to be changed, as determined by the uFlag parameter.


out Pointer to the buffer that receives the NULL-terminated string. If the string is as long or longer than lpString, the string is truncated and the terminating NULL character is added. If lpString is NULL, the function returns the length of the menu string.


in Specifies the maximum length, in characters, of the string to be copied. If the string is longer than the maximum specified in the nMaxCount parameter, the extra characters are truncated. If nMaxCount is 0, the function returns the length of the menu string.


in Specifies how the uIDItem parameter is interpreted. If neither the MF_BYCOMMAND nor MF_BYPOSITION flag is specified, the MF_BYCOMMAND flag is the default flag.

This parameter must be one of the following values.


Indicates that uIDItem gives the identifier of the menu item.


Indicates that uIDItem gives the zero-based relative position of the menu item.

Tips & Tricks:

Please add some!

Sample Code:

Please add some!

//Delete Menu Item
IntPtr hWnd = FindWindow("WindowClass", "WindowName");
if (hWnd.ToInt32() != 0)
    IntPtr hMenu = GetMenu(hWnd);
    if (hMenu.ToInt32() != 0)
       for (uint i = GetMenuItemCount(hMenu) - 1; i >= 0; i--)
        StringBuilder menuName = new StringBuilder(0x20);
        GetMenuString(hMenu, i, menuName, menuName.Capacity, MF_BYPOSITION);
        DeleteMenu(hMenu, i, MF_BYPOSITION);

Alternative Managed API:

Do you know one? Please contribute it!