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| Allegro CL version 10.1 Unrevised from 10.0 to 10.1. 10.0 version

## close-button

Arguments: basic-pane

Returns true if basic-pane has an active close button (a control on the title bar which closes the window when clicked) and `nil` otherwise. When `nil`, a close button appears but it is unavailable (grayed out).

The close-button property may not be changed on an existing window, and must instead be specified with the inspector when designing a window (using a form) or with the :close-button initarg of make-window. (It can be changed using the inspector when designing a form but not for a running window or control, either in the IDE or in an application.)

### GTK Note

For a top-level window on GTK, this property will have an effect only if the X window manager decides to honor it.

Copyright (c) 1998-2022, Franz Inc. Lafayette, CA., USA. All rights reserved.
This page was not revised from the 10.0 page.
Created 2019.8.20.

|  | ToC | DocOverview | CGDoc | RelNotes | FAQ | Index | PermutedIndex
| Allegro CL version 10.1 Unrevised from 10.0 to 10.1. 10.0 version