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

## maximize-button

Arguments: basic-pane

Returns true if its argument (a window of some sort) has an active maximize button and returns `nil` if it does not. A maximize button expands a window to its maximum size.

On Windows, if a help-button is also specified for a window, the maximize button will not appear regardless of the value returned by this function.

The value may be set either by passing a `:maximize-button` initarg to make-window or by calling (setf maximize-button) any time later. The inspector will also display a maximize-button property for forms and other windows.

On Windows, the minimize and maximize buttons are both drawn whenever either or both are enabled, though if one is disabled then it will be grayed out and inactive. Neither will appear when both are disabled.

### 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