RAD Studio
Manipulating Menu Items at Runtime

Sometimes you want to add menu items to an existing menu structure while the application is running, to provide more information or options to the user. You can insert a menu item by using the menu item's Add or Insert method, or you can alternately hide and show the items in a menu by changing their Visible property. The Visible property determines whether the menu item is displayed in the menu. To dim a menu item without hiding it, use the Enabled property. 

For examples that use the menu item's Visible and Enabled properties, see Disabling menu items

In multiple document interface (MDI) and Object Linking and Embedding (OLE) applications, you can also merge menu items into an existing menu bar. See Merging menus for more information.

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