glutAddSubMenu  - adds a sub-menu trigger to the bottom of
the current menu.

glutAddSubMenu
	glutAddSubMenu(label, submenu) -> None

void glutAddSubMenu(char *name, int menu);

name      ASCII character string to display  in  the  menu
          item from which to cascade the sub-menu.

menu      Identifier of the menu to cascade from this sub-
          menu menu item.

glutAddSubMenu adds a sub-menu trigger to  the  bottom  of
the  current  menu.  The string name will be displayed for
the newly added sub-menu trigger. If the sub-menu  trigger
is  entered,  the sub-menu numbered menu will be cascaded,
allowing sub-menu menu items to be selected.

glutAddMenuEntry, glutChangeToSubMenu, glutRemoveItem

Mark J. Kilgard (mjk@nvidia.com)