CWinApp::OnHelpUsing
Visual Studio 2012
Handles the ID_HELP_USING command.
afx_msg void OnHelpUsing( );
You must add an ON_COMMAND( ID_HELP_USING, OnHelpUsing ) statement to your CWinApp class message map to enable this member function. The framework calls this message-handler function when the user of your application selects the Help Using command to invoke the WinHelp application with the standard HELP_HELPONHELP topic.
