打印到文件

应用程序可以通过调用参数设置为 true 并包含完全限定的文件名来将文档设置为打印到文件。为了打印到文件，所选设备必须支持该功能。AcPlPlotEngine::beginDocument()bPlotToFilepFileName

以下代码显示了打印到文件的过程，为清楚起见，省略了打印进度对话框代码：

AcPlPlotEngine* pEngine = NULL;
if(Acad::eOk==AcPlPlotFactory::createPublishEngine(pEngine))
{
    ...
    es = pEngine->beginPlot(pPlotProgDlg);
    AcPlPlotPageInfo pageInfo;
    AcPlPlotInfo plotInfo; 
    plotInfo.setLayout(layoutId);
    AcPlPlotInfoValidator validator;
    es = validator.validate(plotInfo);
    const char *szDocName=acDocManager->curDocument()->fileName();
    // Set bPlotToFile parameter to true.
    es = pEngine->beginDocument(plotInfo, szDocName, 
            NULL, 1, true, m_csFilename);
    es = pEngine->beginPage(pageInfo, plotInfo, true);
    es = pEngine->beginGenerateGraphics();
    es = pEngine->endGenerateGraphics();
    es = pEngine->endPage();
    es = pEngine->endDocument();
    es = pEngine->endPlot();
    // Destroy the engine. 
    pEngine->destroy();
    pEngine = NULL;
else
    // Ensure the engine is not already busy...
    AfxMessageBox("Plot Engine is Busy...");
}