need help in saving Cbitmap to file

See more:

MFC

hi;

here is my code to take a snapshot from static picture control (IDC_STATIC), and the image set into memory i can paste a copy to paint program, my question is how can i save this image to file (i am using VC 2008), please modify my code to do so,

thanks


the code

CDC dc;

   /* client area only */
	CRect rect;
CWnd *wnd = GetDlgItem(IDC_STATIC);
wnd->GetWindowRect(&rect);
//wnd->ScreenToClient(&rect); //optional step - see below

         HDC hdc = ::GetDC(wnd->m_hWnd);
         dc.Attach(hdc);
       

     CDC memDC;

     memDC.CreateCompatibleDC(&dc);

     CBitmap bm;
     CRect r;

      
         wnd->GetClientRect(&r);
        

     CString s;
     wnd->GetWindowText(s);

     CSize sz(r.Width(), r.Height());

     bm.CreateCompatibleBitmap(&dc, sz.cx, sz.cy);

     CBitmap * oldbm = memDC.SelectObject(&bm);

     memDC.BitBlt(0, 0, sz.cx, sz.cy, &dc, 0, 0, SRCCOPY);

     wnd->GetParent()->OpenClipboard();
     ::EmptyClipboard();
     ::SetClipboardData(CF_BITMAP, bm.m_hObject);
     CloseClipboard();

     memDC.SelectObject(oldbm);
     bm.Detach();