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

## nscroll-position

Arguments: stream position

Returns position after modifying it to be the position to which stream has been scrolled relative to the page top left. This is the destructive version of scroll-position.

An application may override the default method of this and several other generic functions in order to implement a custom scrolling scheme that scrolls by logical picture objects rather than by pixels. See the source code of the example entitled 'Scrolling by arbitrary objects rather than pixels' in the Examples tab of the Navigator dialog for a complete example. More on this point and a list of the relevant generic functions can be found on the `horizontal-scroll-bar` and `vertical-scroll-bar` pages.

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