Re: Windows 98 rendering problem using CDHtmlDialog
From: Johan Rosengren (johan.rosengren_at_telia.com)
Date: 05/18/04
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- In reply to: Jim Howard: "Re: Windows 98 rendering problem using CDHtmlDialog"
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Date: Tue, 18 May 2004 07:11:49 +0200
Jim,
Merely invalidating will not redraw the window (you have to trigger the
update as well), posting WM_PAINT is a no-no. RedrawWindow - as I stated in
my original post - will both invalidate and redraw. Forcing an image reload
with a timer is indeed rather ugly :-)))
Johan Rosengren
Abstrakt Mekanik AB
"Jim Howard" <jnhtx@spamcop.net> a écrit dans le message de
news:ORCIIzEPEHA.1312@TK2MSFTNGP12.phx.gbl...
>
> "Johan Rosengren" <johan.rosengren@telia.com> wrote in message
> news:%23oymiGxOEHA.1644@TK2MSFTNGP09.phx.gbl...
> > Jim,
> >
> > The world has enough nuts as it is, so it would be nice to be able to
help
> > you. On the other hand, invalidating a window is just a single call to
> > RedrawWindow, so I can't believe that this is your question, you are
> rather
> > asking when to redraw, I assume? Handlers such as OnDocumentComplete
> and/or
> > OnNavigateComplete would seem to be good starting points.
> >
> >
>
> If I just invalidate the CDHtmlDialog object, nothing happens:
>
> CDHtmlDialog *m_pMyDlg;
> // I put this next line at the end of my OnDocumentComplete handler, some
> images are just black "shadows"
> m_pMyDlg->Invalidate(); // shadow images not redrawn
>
> I've also tried variations of:
> HWND h = m_pMyDlg->m_pControlSite->m_hWnd;
> ::InvalidateRect(h, NULL, 1);
> BOOL b = ::PostMessage(h,WM_PAINT,0,0); //nothing :(
>
>
> A good solution would be a way to invalidate an image element in
> OnDocumentComplete but that doesn't seem possible.
>
> If I reload the images with the IWebBroswer2 pointer via a DHTML call such
> as SetInnerHtml then the problem occurs less frequently, but I still see
> it.
>
> The only sure fire fix so far is to fire a timer a second after
> OnDocumentComplete and then load similar but different images on to the
> page. This is super ugly.
>
> Thanks for answering, I truly appreciate it.
>
> Jim
>
>
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