| Allegro CL version 8.2 Unrevised from 8.1 to 8.2. 8.1 version |
Arguments: basic-pane
Returns whether basic-pane has a "question mark" button in its title-bar for invoking context-sensitive help. If the user clicks this button and then clicks a dialog-item or child window of basic-pane, then the generic function context-sensitive-help is called. An application can add methods to context-sensitive-help to display help on the clicked dialog-item or child window.
Microsoft Windows note: due to operating system design, this button may not be used along with the minimize or maximize buttons (see minimize-button and maximize-button). Those buttons will not appear if specified along with the help-button option.
GTK note: A help button will never appear on a top-level window, because X window managers do not provide such a thing.
This property should be specified by passing a help-button initarg to make-window, since this property cannot be changed on an existing window by calling setf and this generic function. (You may also specify it interactively in the inspector for a form window; the button will not appear on the form itself but will appear on the running window of the form.)
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This page was not revised from the 8.1 page.
Created 2010.1.21.
| Allegro CL version 8.2 Unrevised from 8.1 to 8.2. 8.1 version |