The type of this data member is the enumerated type AFX_HELP_TYPE, which is defined within the CWinApp class.
The AFX_HELP_TYPE enumeration is defined as follows:
afxWinHelp = 0,
afxHTMLHelp = 1
To set the application's help to HTML Help, call SetHelpMode and specify afxHTMLHelp.
To set the application's help to WinHelp, call SetHelpMode and specify afxWinHelp.