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CPaintDC dc(this); //¶Ô»°¿òµÄdc
CDC dcMem; // Óë¶Ô»°¿òdc¼æÈݵÄÄÚ´ædc
dcMem.CreateCompatibleDC(&dc); //´´½¨Óë¶Ô»°¿òdc¼æÈݵÄÄÚ´ædc
CRect rect;
GetClientRect(&rect);
BITMAP bitMap;
m_bmpBackground.GetBitmap(&bitMap);
CBitmap *pbmpOld=dcMem.SelectObject(&m_bmpBackground); //½«±³¾°Î»Í¼Ñ¡ÈëÄÚ´ædcÖÐ
dc.StretchBlt(0,0,rect.Width(),rect.Height(),
&dcMem,0,0,bitMap.bmWidth,bitMap.bmHeight,SRCCOPY); //½«ÄÚ´ædcÖеÄλͼÀÉìÏÔʾÔÚ¶Ô»°¿òµÄdcÖÐ
CDC *pDC = GetDC();
pDC->SetBkMode(RGB(255,255,255)); //ÉèÖñ³¾°É«ÎªÍ¸Ã÷É«
pDC->SetTextColor(RGB(0,0,160)); //ÉèÖÃ×ÖÌåÑÕɫΪÀ¶É«