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

## bitmap-stream

Arguments: drawable

Returns the bitmap-stream most recently used by a `drawable`, or `nil` if none has been used. This function is not setf'able; the bitmap-stream is created automatically when the use-bitmap-stream property is turned on. Setting use-bitmap-stream to `nil` disassociates any bitmap-stream from a drawable, although this function will still return the now-unused bitmap-stream.

Thus, if use-bitmap-stream has been turned on and then off, then the leftover bitmap-stream will still be returned. Therefore, an application should not assume that a drawable is currently using a bitmap stream simply because bitmap-stream returns true. Call use-bitmap-stream instead to determine if one is currently being used.

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