void CPrintView::OnPrepareDC(CDC* pDC, CPrintInfo* pInfo)

{

    // TODO: Add your specialized code here and/or call the base class

    //设置打印环境坐标转换

    pDC->SetMapMode(MM_ANISOTROPIC);

    int screenwidth_real=GetSystemMetrics(SM_CXSCREEN);

    int screenheight_real=GetSystemMetrics(SM_CYSCREEN);

    CSize winSize=CSize(screenwidth_real,screenheight_real);

    //设置窗口大小

    pDC->SetWindowExt(winSize);

    long xLogPixPerInch,yLogPixPerInch;

    //获得设备坐标即每英寸多少像素

    xLogPixPerInch=pDC->GetDeviceCaps(LOGPIXELSX);

    yLogPixPerInch=pDC->GetDeviceCaps(LOGPIXELSY);

    //设置视口大小 96%

    pDC->SetViewportExt(xLogPixPerInch*winSize.cx/,yLogPixPerInch*winSize.cy/);

    CView::OnPrepareDC(pDC, pInfo);

}

BOOL CPrintView::OnPreparePrinting(CPrintInfo* pInfo)

{

    //下列语句使打印机默认横向打印

    LPDEVMODE   lpDevMode;

    PRINTDLG pd=pInfo->m_pPD->m_pd;

    if(AfxGetApp()->GetPrinterDeviceDefaults(&pd)){

        lpDevMode=(LPDEVMODE)GlobalLock(pd.hDevMode);

        if(lpDevMode){

            lpDevMode->dmPaperSize=DMPAPER_A4;

            lpDevMode->dmOrientation=DMORIENT_LANDSCAPE;//横向打印

        }

        GlobalUnlock(pd.hDevMode);

    }

    //上述语句使打印机默认横向打印

    return DoPreparePrinting(pInfo);

}