GetSubMenu(hMenu, nPos)-><hSubMenu>
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 PARAMETER:

  <hMenu>      Handle that identifies the menu with sub menu

  <nPos>       is the ( zero based ) position of the pop-up menu item


 RETURNS:

  <hSUbMenu> is the handle of the pop-up menu item if the function is 
  successful. 


 DESCRIPTION:

  The GetSubMenu function retrieves the handle of a pop-up menu. 


 SOURCE:  

  SOURCE\WINAPI\MENUS.C