VC载入位图方法
CDC memDC ;
memDC.CreateCompatibleDC ( &(*dc) ) ;
CBitmap* pBitmap ;//load all bitmap
CBitmap* pOldBitmap ;//save old bitmap temp
BITMAP bm;
pBitmap = new CBitmap ;
pBitmap->LoadBitmap(IDB_BITMAP_BAT0);
pOldBitmap = memDC.SelectObject(pBitmap);
pBitmap->GetBitmap(&bm);
dc->BitBlt(m_rcBattery.left, m_rcBattery.top,bm.bmWidth, bm.bmHeight, &memDC, 0, 0, SRCCOPY);
memDC.SelectObject(pOldBitmap);
DeleteObject(&memDC);
delete pBitmap ;