2. 设置图片控件类型位owner draw

    3. mfc 显示png_重绘

  3. 在onpaint事件中重绘
CImage image;
//IDC_MainImg为图片控件ID
  CWnd* pWnd = GetDlgItem(IDC_MainImg);
  CDC* pDC = pWnd->GetDC();
  HDC hDC = pDC->m_hDC;
  CRect rect_frame;
  pWnd->GetClientRect(&rect_frame);
  image.Load("E:test.png");

  ::SetStretchBltMode(hDC, HALFTONE);
  ::SetBrushOrgEx(hDC, 0, 0, NULL);
  image.Draw(hDC, rect_frame);
  ReleaseDC(pDC);
  image.Destroy();

留待后查，同时方便他人