Re: Missing CMFCRibbonBar::OnHelpHitTest()

From:

"Jonathan Wood" <jwood@softcircuits.com>

Newsgroups:

microsoft.public.vc.mfc

Date:

Sat, 1 Nov 2008 09:09:46 -0600

Message-ID:

<OqsViPDPJHA.4496@TK2MSFTNGP04.phx.gbl>

It appears that it is really CMFCRibbonBar::OnToolHitTest() that is missing.

CBasePane::OnHelpHitTest() ends up calling CWnd::OnToolHitTest(), which is
virtual. Classes like CMFCToolBar override OnToolHitTest() to return the
button at the specified location. Because CMFCRibbonBar does not override
OnToolHitTest(), CWnd::OnToolHitTest() is called instead and it tries to
find the child window at the specified point. Since ribbon elements are not
actual windows, CWnd::OnToolHitTest() finds no child windows and returns -1.

As a result, CBasePane::OnHelpHitTest() simply returns the ID of the ribbon
window itself, which is useless here.

Is this a bug?

Thanks.

--
Jonathan Wood
SoftCircuits Programming
http://www.softcircuits.com

"Jonathan Wood" <jwood@softcircuits.com> wrote in message
news:uWd$g09OJHA.2392@TK2MSFTNGP04.phx.gbl...

So, has anyone else noticed that CMFCRibbonBar::OnHelpHitTest() doesn't
appear to exist?

If you don't know, this is the handler for the WM_HELPHITTEST. MFC sends
this message to handle ID_CONTEXT_HELP, which is when you click the help
arrow and then click on a window or button to view the help associated
with that command.

It appears this functionality is completely broken when you use the
ribbon.

--
Jonathan Wood
SoftCircuits Programming
http://www.softcircuits.com