Re: Displaying Text

"Scott McPhillips [MVP]" <org-dot-mvps-at-scottmcp> wrote in message
news:pMidnTh4DdU6DxLbnZ2dnUVZ_oesnZ2d@xxxxxxxxxxxxxx
The reason for the flickering is that the WM_ERASEBKGND message is sent
just prior to WM_PAINT. The default MFC message handler makes the window
all white in WM_ERASEBKGND, and this is briefly visible.

When you use a memory DC you suppress the MFC erase by overriding
WM_ERASEBKGND and doing nothing, then you combine the erase and text paint
into a single visual change.


It's always bothered me that when I resize my main window, all the controls
within it flicker, including the toolbar and view areas. I believe there's
some sort of CS_ style that could stop this, something like CS_CLIPCHILDREN,
or even overriding CMainFrame::OnEraseBackground() to do nothing, as you
say. Do you know of any way of stopping this? I just haven't had time to
research it.

Thanks,
David


.

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