PxHelpTopicRoot (topic_root)
A string containing a path that will make the new topic root. Topic roots are relative from the /usr/help/product directory.
This function sets the helpviewer topic root. The topic root is the current path in the topic tree. Changing the topic root allows the developer to issue PxHelpTopic commands with a short argument rather than having to maintain a path-like string.
Gamma> PxHelpTopicRoot("/Gamma/Photon in Gamma/Widget Reference"); t Gamma> PxHelpTopic("re-ptarc.html"); t <The PtArc helpviewer page is displayed.>
PxHelpQuit, PxHelpTopic, PxHelpTopicTree, PxHelpUrl, PxHelpUrlRoot
and in Photon documentation: PxHelpTopicRoot.
Copyright © 1995-2010 by Cogent Real-Time Systems, Inc. All rights reserved.