Board index » Visual Studio » Overriding WinHelp is not working in .NET

Visual Studio171
Hi Friends,



I have an application which was developed with Visual C++ 6.0 and MFC. In

the application, the CWinApp::WinHelp method was overridden to support

context sensitive help (F1 help). After upgrading to Visual Studio .Net

2003, the help links are not working any longer. The overridden WinHelp

method in my CWinApp derived class no longer gets called when I press F1.



On some investigation within the framework code, I found that another

function CWinApp::WinHelpInternal gets called. If I just call this method

from my overridden WinHelp method then things work fine. Is this a change

made to the CWinApp class in the latest

version of MFC and is it documented somewhere? I could not find any

reference to it on the MSDN site or in the online docs.

Will the workaround I have done has any impact which I'm not aware of?



Thanks for your help.



Regards,

Devender...


-

It's been years last time I used MFC. So, I am quite off from MFC case.



The WM_HELP window message is sent to the main window of the

application. If you can handle this message, you can either call your

method with proper parameters, or, display help from within the WM_HELP

handler. Besides, I guess MFC does this on your behalf - it handles

this message and calls WinHelpInternal method.



Ismail



-