4.2.1 Documentation strings

Documentation strings let you provide brief online help for gadgets such as menu buttons. You can specify a documentation string for any gadget using the documentation: init-keyword. Although you can make whatever use you want of these strings, using the gadget-documentation and gadget-documentation-setter methods, documentation strings for menu buttons are used in status bars without any need for special action on your part. If you display a menu and move the mouse pointer over the items in the menu, then the documentation string defined for each item is displayed in the status bar of the frame for as long as the mouse pointer is over the menu item. It is generally good practice to supply documentation strings for all the menu items in a frame. Documentation strings for other gadgets become tooltips in Windows.

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Building Applications Using DUIM - 26 May 1999