CDN_HELP Overview  Group

The CDN_HELP notification message is sent by an Explorer-style Open or Save As common dialog box when the user clicks the Help button. Your OFNHookProc hook procedure receives this message in the form of a WM_NOTIFY message.

CDN_HELP 

lpon = (LPOFNOTIFY) lParam; 

 

Parameters

lpon

Pointer to an OFNOTIFY structure.

The OFNOTIFY structure contains an NMHDR structure whose code member indicates the CDN_HELP notification code.

Return Values

The return value is ignored.

Remarks

The system sends this notification only if the dialog box was created using the OFN_EXPLORER value.

See Also

GetOpenFileName, GetSaveFileName, NMHDR, OFNHookProc, OFNOTIFY, OPENFILENAME, WM_NOTIFY