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| Allegro CL version 9.0 Unrevised from 8.2 to 9.0. 8.2 version

## invalidate-window

Arguments: window &optional box erase-p

Invalidates box of window which means that it will be later repainted. box defaults to the visible-box of window. If erase-p is true (default is `nil`), then window's background is cleared before it is repainted.

The more general function invalidate is now recommended over most of the invalidate-* functions.

Copyright (c) 1998-2019, Franz Inc. Oakland, CA., USA. All rights reserved.
This page was not revised from the 8.2 page.
Created 2012.5.30.

|  | ToC | DocOverview | CGDoc | RelNotes | FAQ | Index | PermutedIndex
| Allegro CL version 9.0 Unrevised from 8.2 to 9.0. 8.2 version