The CreateMenu function creates a menu. The menu is initially empty, but it can be filled with menu items by using the InsertMenuItem, AppendMenu, and InsertMenu functions.
HMENU CreateMenu(VOID)
This function has no parameters.
If the function succeeds, the return value is the handle to the newly created menu.
If the function fails, the return value is NULL. To get extended error information, call GetLastError.
Resources associated with a menu that is assigned to a window are freed automatically. If the menu is not assigned to a window, an application must free system resources associated with the menu before closing. An application frees menu resources by calling the DestroyMenu function.
Windows 95: The system can support a maximum of 16,364 menu handles.
AppendMenu, CreatePopupMenu, DestroyMenu, InsertMenu, SetMenu, InsertMenuItem