Re: Hide dialog at first

log color, and


No I used the OnEraseBackground() method to fill the background with a
black brush. But I did`nt set the ClipChildren style to the dialog.
After that I can see that the cstatic images won`t be overwritten by
this black brush.

BEGIN_MESSAGE_MAP(CTimingPage, CWizardPage)
    //{{AFX_MSG_MAP(CHardwarePage)
    //}}AFX_MSG_MAP
    ON_WM_ERASEBKGND()
END_MESSAGE_MAP()

BOOL CTimingPage::OnEraseBkgnd(CDC* pDC)
{
    CRect rect;
    GetClientRect(rect);

    CBrush brush;
    brush.CreateSolidBrush(RGB(0, 0, 0));
    pDC->FillRect(rect, &brush);

    return TRUE;
}

CTimingPage is a subdialog in the wizard, which contains these
CImageStatic images.

After adding the ClipChildren style to this dialog, I can see also a
flickering (but it`s different; I try to described it): If I set a
breakpoint in the above OnEraseBackground() method (in the CTimingPage
class) I can see that the "border (the outside pixel around the whole
image) of the CImageStatic image will be cropped after the pDC-


Then I set another breakpoint in the OnPaint() method of the
CImageStatic class. After the dc.BitBlt() function these outside
pixels of the images will be shown again.

void CImageStatic::OnPaint()
{
    CPaintDC dc(this); // device context for painting
    CPoint size( bm.bmWidth, bm.bmHeight );

    CDC MemDC;
    MemDC.CreateCompatibleDC(&dc);

    int SavedState = MemDC.SaveDC();
    MemDC.SelectObject(hBitmap);
    dc.BitBlt(0,0,size.x,size.y,&MemDC,0,0,SRCCOPY);

//and so on
}

Beside this effect I didn`t see any flickering.

But if I have on the one subdialog an image placed where on another
subdialog two images with a short break a placed; I will see the old
(big) image from the first dialog in the second dialog

first dialog
____________
| |
--------------------

second dialog

_____ ___
| | | |
-------- -------

These three rectangle display the image positions in the two
subdialogs. Between the two images in the second dialog I will see the
image from the first subdialog if I use the ClipChildren option. Do
you know if there`s another solution to solve such a scenario?

best regards
Hans


s; if it is just


is a CStatic, you


e other controls.


 the dialog?