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

## a-visual-style-is-active

Arguments:

Returns true if a Microsoft "Visual Style" is currently in effect; returns `nil` otherwise. The value will always be `nil` on platforms other than Microsoft Windows.

A Visual Style is in effect on Windows if there is a "manifest file" and the user has not selected "Windows Classic" in Control Panel | Display | Themes. See ide:include-manifest-file-for-visual-styles for more information.

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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