Creates a .jpg (JPEG) file from IActiveView using a high resolution exporting option. Default values of 96 DPI are overwritten to 300 used for the image creation.
[C#]
///<summary>Creates a .jpg (JPEG) file from the ActiveView using a high resolution exporting option. Default values of 96 DPI are overwritten to 300 used for the image creation.</summary> /// ///<param name="activeView">An IActiveView interface</param> ///<param name="pathFileName">A System.String that the path and filename of the JPEG you want to create. Example: "C:\temp\hiResolutionTest.jpg"</param> /// ///<returns>A System.Boolean indicating the success</returns> /// ///<remarks></remarks> public System.Boolean CreateJPEGHiResolutionFromActiveView(ESRI.ArcGIS.Carto.IActiveView activeView, System.String pathFileName) { //parameter check if (activeView == null || !(pathFileName.EndsWith(".jpg"))) { return false; } ESRI.ArcGIS.Output.IExport export = new ESRI.ArcGIS.Output.ExportJPEGClass(); export.ExportFileName = pathFileName; // Because we are exporting to a resolution that differs from screen // resolution, we should assign the two values to variables for use // in our sizing calculations System.Int32 screenResolution = 96; System.Int32 outputResolution = 300; export.Resolution = outputResolution; ESRI.ArcGIS.Display.tagRECT exportRECT; // This is a structure exportRECT.left = 0; exportRECT.top = 0; exportRECT.right = activeView.ExportFrame.right * (outputResolution / screenResolution); exportRECT.bottom = activeView.ExportFrame.bottom * (outputResolution / screenResolution); // Set up the PixelBounds envelope to match the exportRECT ESRI.ArcGIS.Geometry.IEnvelope envelope = new ESRI.ArcGIS.Geometry.EnvelopeClass(); envelope.PutCoords(exportRECT.left, exportRECT.top, exportRECT.right, exportRECT.bottom); export.PixelBounds = envelope; System.Int32 hDC = export.StartExporting(); activeView.Output(hDC, (System.Int16)export.Resolution, ref exportRECT, null, null); // Explicit Cast and 'ref' keyword needed export.FinishExporting(); export.Cleanup(); return true; }
[Visual Basic .NET]
'''<summary>Creates a .jpg (JPEG) file from the ActiveView using a high resolution exporting option. Default values of 96 DPI are overwritten to 300 used for the image creation.</summary> ''' '''<param name="activeView">An IActiveView interface</param> '''<param name="pathFileName">A System.String that the path and filename of the JPEG you want to create. Example: "C:\temp\hiResolutionTest.jpg"</param> ''' '''<returns>A System.Boolean indicating the success</returns> ''' '''<remarks></remarks> Public Function CreateJPEGHiResolutionFromActiveView(ByVal activeView As ESRI.ArcGIS.Carto.IActiveView, ByVal pathFileName As System.String) As System.Boolean 'parameter check If activeView Is Nothing OrElse Not (pathFileName.EndsWith(".jpg")) Then Return False End If Dim export As ESRI.ArcGIS.Output.IExport = New ESRI.ArcGIS.Output.ExportJPEGClass export.ExportFileName = pathFileName ' Because we are exporting to a resolution that differs from screen ' resolution, we should assign the two values to variables for use ' in our sizing calculations Dim screenResolution As System.Int32 = 96 Dim outputResolution As System.Int32 = 300 export.Resolution = outputResolution Dim exportRECT As ESRI.ArcGIS.Display.tagRECT ' This is a structure exportRECT.left = 0 exportRECT.top = 0 exportRECT.right = CInt(activeView.ExportFrame.right * (outputResolution / screenResolution)) exportRECT.bottom = CInt(activeView.ExportFrame.bottom * (outputResolution / screenResolution)) ' Set up the PixelBounds envelope to match the exportRECT Dim envelope As ESRI.ArcGIS.Geometry.IEnvelope = New ESRI.ArcGIS.Geometry.EnvelopeClass envelope.PutCoords(exportRECT.left, exportRECT.top, exportRECT.right, exportRECT.bottom) export.PixelBounds = envelope Dim hDC As System.Int32 = export.StartExporting() activeView.Output(hDC, CShort(export.Resolution), exportRECT, Nothing, Nothing) ' Explicit Cast and 'ref' keyword needed export.FinishExporting() export.Cleanup() Return True End Function