function GetImeMenuItemsW(hIMC: LongWord; dwFlags: LongWord; dwType: LongWord; var pImeParentMenu: IMEMENUITEMINFOW; out pImeMenu: IMEMENUITEMINFOW; dwSize: LongWord; out pdwResult: LongWord): HResult; stdcall;

This is GetImeMenuItemsW, a member of class IActiveIMMIME.