数据库存入图片成功但显示不出来

void Caccess_test_1Dlg::showimage45()//显示图片
{
    CRect rect;
    GetDlgItem(IDC_STATIC_picture45)->GetWindowRect(&rect);//将矩形窗口选中到picture空间里
    ScreenToClient(&rect);
    CWnd *pWnd = GetDlgItem(IDC_STATIC_picture45);//获得Picture窗口句柄
    pWnd->GetClientRect(&rect);//获得Picture窗口矩形区域
    CDC *pDC = pWnd->GetDC();
    //m_image.Draw(pDC->m_hDC, rect, Gdiplus::InterpolationModeNearestNeighbor);
    m_Pic2.Show(pDC, rect);
    ReleaseDC(pDC);
    return;
}