Flickerproblem on some machines

Tom Becker <Tom_dot_Becker_at_Ziemann_minus_Urban_dot_de>
Tue, 15 Jan 2008 10:36:05 +0100

I want to draw a header in an own view that slowly fades out.

My current approach is to start some timers that invalidate a rectangle
and draw the box with some gdi+ functions. See (the simplified) code below.

On some machines I get a very anoying flicker by using InvalidateRect(). The
reason is unknown.

Does anyone know a better solution to display some text that is fading out?

(Btw: I can't use drawing in a custom NC-Area as I get problems with CSplitterWnd)

Tom Becker

void CMyView::OnDraw(CDC* pDC)
   if(m_alphaHeading > 0)
     Gdiplus::Graphics graphics(pDC->m_hDC);

     Gdiplus::SolidBrush brushBG(Gdiplus::Color(m_alphaHeading, GetRValue(capCol), GetGValue(capCol), GetBValue(capCol)));

     graphics.FillRectangle(&brushBG, m_titleRect);

     //Write some additional text

void CMyView::OnTimer(UINT nIDEvent)

     m_alphaHeading = 255;
     SetTimer(ID_TM_FADE_TITLE, 50, 0);


   if(nIDEvent == ID_TM_FADE_TITLE)
     if(m_alphaHeading == 0)
       InvalidateRect(titleRect, false);



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