#include <GuiMenu.au3>

Example()

Func Example()
        Local $hWnd, $hMain, $hFile

        ; Open Notepad
        Run("notepad.exe")
        WinWaitActive("[CLASS:Notepad]")
        $hWnd = WinGetHandle("[CLASS:Notepad]")
        $hMain = _GUICtrlMenu_GetMenu($hWnd)
        $hFile = _GUICtrlMenu_GetItemSubMenu($hMain, 0)

        ; Get/Set File menu help context ID
        Writeln("File help context ID: " & _GUICtrlMenu_GetMenuContextHelpID($hFile))
        _GUICtrlMenu_SetMenuContextHelpID($hFile, 1234)
        Writeln("File help context ID: " & _GUICtrlMenu_GetMenuContextHelpID($hFile))
EndFunc   ;==>Example

; Write a line of text to Notepad
Func Writeln($sText)
        ControlSend("[CLASS:Notepad]", "", "Edit1", $sText & @CRLF)
EndFunc   ;==>Writeln