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

## *gtk-compatibility-warning-action*

This variable exists in CG only on the GTK platform (that is, not on Windows). If needed, a `#+gtk` conditionalization could be used with this variable.

The value of this variable indicates what happens on the GTK platform when application code calls a Common Graphics function that cannot be (or has not yet been) implemented to handle the call as documented.

The default value is `:warn`, which calls warn with an informational message and then returns normally. Alternately the value may be `:error` to signal an error, or `nil` to ignore the call and do nothing.

There may still be a significant number of cases that are not covered by this warning system, where either nothing will happen or a break will occur. Refer to cggtk-relnotes.html for complete information on CG differences on the GTK platform.

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