Call this member function to invoke the WinHelp application.
virtual void WinHelp( DWORD dwData, UINT nCmd = HELP_CONTEXT );
| Header File | Afxwin.h | 
| Platforms | |
| Versions | 1.0 and later | 
| Complete documentation | Visual C++ documentation | 
CWinApp Overview, CWinApp Member Functions, Application Architecture Classes, CWinApp::OnHelp