导出当前视图为BMP、JPG、PDF等格式

导出当前视图为BMP、JPG、PDF等格式

public void PageExport()
        {
            SaveFileDialog pSaveDlg = new SaveFileDialog();
            pSaveDlg.Title = "导出图形";
            pSaveDlg.DefaultExt = "pdf";
            pSaveDlg.Filter = "PDF (*.pdf)|*.pdf|TIFF (*.tif)|*.tif|BMP (*.bmp)|*.bmp|JPEG (*.jpg)|*.jpg|GIF (*.gif)|*.gif|EMF (*.emf)|*.emf|SVG (*.svg)|*.svg|AI (*.ai)|*.ai";
            pSaveDlg.FilterIndex = 1;
            pSaveDlg.RestoreDirectory = true;
            pSaveDlg.OverwritePrompt = true;

            if (pSaveDlg.ShowDialog() == DialogResult.OK)
            {
                string pFilePath = pSaveDlg.FileName;

                IActiveView pActiveView = AxPageLayoutControl1.ActiveView;
                IExport pExport;
                tagRECT exportFrame;
                IEnvelope pEnv;
                int hdc;
                int dpi;

                exportFrame = pActiveView.ExportFrame;
                pEnv = new EnvelopeClass();
                pEnv.PutCoords(exportFrame.left, exportFrame.top, exportFrame.right, exportFrame.bottom);

                switch (pSaveDlg.FilterIndex)
                {
                    case 1://pdf
                        pExport = new ExportPDFClass();
                        dpi = (int)pExport.Resolution;
                        pExport.PixelBounds = pEnv;
                        pExport.ExportFileName = pSaveDlg.FileName;
                        pExport.Resolution = (short)dpi;

                        hdc = pExport.StartExporting();
                        pActiveView.Output(hdc, dpi, ref exportFrame, null, null);
                        pExport.FinishExporting();
                        break;
                    case 2://tif
                        pExport = new ExportTIFFClass();
                        dpi = (int)pExport.Resolution;
                        pExport.PixelBounds = pEnv;
                        pExport.ExportFileName = pSaveDlg.FileName;
                        pExport.Resolution = (short)dpi;

                        hdc = pExport.StartExporting();
                        pActiveView.Output(hdc, dpi, ref exportFrame, null, null);
                        pExport.FinishExporting();
                        break;
                    case 3://bmp
                        pExport = new ExportBMPClass();
                        dpi = (int)pExport.Resolution;
                        pExport.PixelBounds = pEnv;
                        pExport.ExportFileName = pSaveDlg.FileName;
                        pExport.Resolution = (short)dpi;

                        hdc = pExport.StartExporting();
                        pActiveView.Output(hdc, dpi, ref exportFrame, null, null);
                        pExport.FinishExporting();
                        break;
                    case 4://jpg
                        pExport = new ExportJPEGClass();
                        dpi = (int)pExport.Resolution;
                        pExport.PixelBounds = pEnv;
                        pExport.ExportFileName = pSaveDlg.FileName;
                        pExport.Resolution = (short)dpi;

                        hdc = pExport.StartExporting();
                        pActiveView.Output(hdc, dpi, ref exportFrame, null, null);
                        pExport.FinishExporting();
                        break;
                    case 5://gif
                        pExport = new ExportGIFClass();
                        dpi = (int)pExport.Resolution;
                        pExport.PixelBounds = pEnv;
                        pExport.ExportFileName = pSaveDlg.FileName;
                        pExport.Resolution = (short)dpi;

                        hdc = pExport.StartExporting();
                        pActiveView.Output(hdc, dpi, ref exportFrame, null, null);
                        pExport.FinishExporting();
                        break;
                    case 6://emf
                        pExport = new ExportEMFClass();
                        dpi = (int)pExport.Resolution;
                        pExport.PixelBounds = pEnv;
                        pExport.ExportFileName = pSaveDlg.FileName;
                        pExport.Resolution = (short)dpi;

                        hdc = pExport.StartExporting();
                        pActiveView.Output(hdc, dpi, ref exportFrame, null, null);
                        pExport.FinishExporting();
                        break;
                    case 7://svg
                        pExport = new ExportSVGClass();
                        dpi = (int)pExport.Resolution;
                        pExport.PixelBounds = pEnv;
                        pExport.ExportFileName = pSaveDlg.FileName;
                        pExport.Resolution = (short)dpi;

                        hdc = pExport.StartExporting();
                        pActiveView.Output(hdc, dpi, ref exportFrame, null, null);
                        pExport.FinishExporting();
                        break;
                    case 8://ai
                        pExport = new ExportAIClass();
                        dpi = (int)pExport.Resolution;
                        pExport.PixelBounds = pEnv;
                        pExport.ExportFileName = pSaveDlg.FileName;
                        pExport.Resolution = (short)dpi;

                        hdc = pExport.StartExporting();
                        pActiveView.Output(hdc, dpi, ref exportFrame, null, null);
                        pExport.FinishExporting();
                        break;
                    default:
                        break;
                }
                MessageBox.Show("导出完毕！");
            }

视图导出主要用到IExport 接口，在旧版本中采用IExporter接口，AE9以后替代为IExport，而且导出的类型也有增加。