MWAPI - VISIBLE

1995 Version of ANSI (Equivalent to Current ISO Version) of Standard

If VISIBLE is FALSE, a gadget or menu cannot be seen by the user. If VISIBLE is TRUE, a gadget or menu can be seen by the user provided that its ancestors’ VISIBLE attributes are TRUE, it is not obscured by another window, and it is not positioned outside the visible area of its parent.

For menus displayed as menu bars and for menus displayed as submenus, the value of the VISIBLE elattribute is ignored. A menu displayed as a menu bar is visible when its parent window is visible. A menu, S, displayed as a submenu becomes visible automatically when a menu choice whose SUBMENU cattribute identifies menu S is activated. A menu, S, displayed as a submenu becomes invisible when (a) a select event occurs for a menu choice of S for which the SUBMENU gattribute is not specified or (b) a menu displayed as a submenu of S becomes invisible.