CWinApp::OnHelpFinder
Handles the ID_HELP_FINDER and ID_DEFAULT_HELP commands.
afx_msg void OnHelpFinder( );
You must add an ON_COMMAND( ID_HELP_FINDER, OnHelpFinder ) statement to your CWinApp class message map to enable this member function. If enabled, the framework calls this message-handler function when the user of your application selects the Help Finder command to invoke WinHelp with the standard HELP_FINDER topic.
Header: afxwin.h