Reports whether the Navigation Services library is available on the user’s system.

Boolean NavServicesAvailable ();

function result

A Boolean value. This function returns true if Navigation Services is available, false if not.

DISCUSSION

Use this function before attempting to use Navigation Services.

There is a known problem with Navigation Services 1.0 that occurs if you call NavServicesAvailable more than once without the Appearance Manager being installed. Make sure that you check for the presence of the Appearance Manager before calling NavServicesAvailable.

SPECIAL CONSIDERATIONS

There is a known problem with Navigation Services 1.0 that occurs if you call NavServicesAvailable more than once without the Appearance Manager being installed. Make sure that you check for the presence of the Appearance Manager before calling NavServicesAvailable.

VERSION NOTES

Available in Navigation Services 1.0 and later.

AVAILABILITY

Supported in Carbon.

© 2000 Apple Computer, Inc. — (Last Updated 4/17/2000)