Legacy Document

Important: The information in this document is obsolete and should not be used for new development.

Inside Macintosh: Networking /: Chapter 2 - AppleTalk Utilities / About the AppleTalk Utilities

Determining Whether AppleTalk Phase 2 Drivers Are Supported
Once the .MPP driver has been loaded into memory, you can use the Gestalt function with the gestaltAppleTalkVersion selector to check the version of AppleTalk. The Gestalt function returns the version of the .MPP driver. If the version is equal to or greater than 53, then the .MPP driver supports AppleTalk Phase 2.
Alternatively, you can call the SysEnvirons function. If the atDrvrVersNum field of the SysEnvRec data structure returned by this function is equal to or greater than 53, then the .MPP driver supports AppleTalk Phase 2.

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