Re: Hide dialog at first

From:
mfc <mfcprog@googlemail.com>
Newsgroups:
microsoft.public.vc.mfc
Date:
Wed, 17 Nov 2010 03:22:31 -0800 (PST)
Message-ID:
<0d00e973-14f6-45d9-91f2-58685208a493@r6g2000vbf.googlegroups.com>
Here`s the function for drawing the background-image for all static
control items:

class CImageStatic :
    public CStatic
{
public:
    CImageStatic(void);
    virtual ~CImageStatic(void);
protected:
    CBrush m_Brush;
    CBitmap m_edtbgbmp;
    BITMAP bm;

protected:
    afx_msg BOOL OnEraseBkgnd(CDC* pDC);
    DECLARE_MESSAGE_MAP()

};

CImageStatic::CImageStatic(void)
{
    //load default image
    m_edtbgbmp.DeleteObject();
    //m_edtbgbmp.LoadBitmap(IDB_BMP_EDTBOX);
    m_edtbgbmp.LoadBitmap(IDB_EDTBOX);

    m_Brush.DeleteObject();
    m_Brush.CreatePatternBrush(&m_edtbgbmp);
    ::GetObject( m_edtbgbmp, sizeof( bm ), &bm );
}

BOOL CImageStatic::OnEraseBkgnd(CDC* pDC)
{
    CPoint size( bm.bmWidth, bm.bmHeight );
    pDC->DPtoLP(&size);

    CPoint org(0,0);
    pDC->DPtoLP(&org);

    // Create a memory DC compatible with the destination DC
    CDC memDC;
    memDC.CreateCompatibleDC( pDC );
    memDC.SetMapMode( pDC->GetMapMode() );

    HBITMAP hBmOld = (HBITMAP)::SelectObject( memDC.m_hDC, m_edtbgbmp );
    pDC->BitBlt(0, 0, size.x, size.y, &memDC, org.x, org.y, SRCCOPY);
    ::SelectObject( memDC.m_hDC, hBmOld );

    return TRUE;
}

Maybe you know another solution / way to draw these images much
faster?

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