Retired Document
Important: This sample code may not represent best practices for current development. The project may use deprecated symbols and illustrate technologies and techniques that are no longer recommended.
IconUtilCheck
Last Revision: | Version 1.0, 2003-01-30 Shows how to determine whether the Icon Utilities are available. |
Build Requirements: | |
Runtime Requirements: | Carbon |
According to the Tech Note OV - 16, "Inside Macintosh: More Macintosh Toolbox, page 5-7, specifies that the gestaltIconUtilitiesAttr - 'icon' gestalt selector can be used to determine whether the icon utilities are present under System 7.x. Note that this selector is included in the GestaltEqu files. It turns out that this selector is not implemented until System Software v7.1.2. To check for the existence of these utilities, use the TrapAvailable code to check for the _IconDispatch, (0xABC9) trap. The TrapAvailable code is presented in Inside Macintosh VI 3-8, and as sample code in many of the snippets on the Developer CD." This snippet shows how to determine whether the Icon Utilities are available. Requirements: Keywords: Icon, Utils, Utilities
Copyright © 2003 Apple Computer, Inc. All Rights Reserved. Terms of Use | Privacy Policy | Updated: 2003-01-30