Drawing Raster Image Exporter

In This Topic

The NDrawingRasterImageExporter lets you export the content of the active page (or portions of it) to a raster image in the following file formats: PNG, JPEG and BMP.

Saving with Dialog

The following code shows a save image file dialog that allows the user to create an image from the active page content:

Saving with Dialog	Copy Code
NDrawingRasterImageExporter imageExporter = new NDrawingRasterImageExporter(drawingView.Document); imageExporter.SaveAsImage(drawingView.ActivePage.Bounds, NRaster.DefaultResolution);

Saving to File or Stream

To save the exported image directly to a file or a stream, you should use the SaveToFile or SaveToStream methods respectively. The following piece of code exports the active page of a drawing document to a file:

Saving to File	Copy Code
NDrawingRasterImageExporter imageExporter = new NDrawingRasterImageExporter(drawingView.Document); imageExporter.SaveToFile(@"C:\MyImage.png", drawingView.ActivePage.Bounds, NRaster.DefaultResolution);

Saving to File

Copy Code

NDrawingRasterImageExporter imageExporter = new NDrawingRasterImageExporter(drawingView.Document);
imageExporter.SaveToFile(@"C:\MyImage.png", drawingView.ActivePage.Bounds, NRaster.DefaultResolution);

If you want to directly show a File Save dialog with a specific vector image format selected by default you can pass the file extension of the desired file format to the SaveAsImage method:

Saving with a File Save dialog	Copy Code
NDrawingVectorImageExporter imageExporter = new NDrawingVectorImageExporter(m_DrawingDocument); imageExporter.SaveAsImage("png");

Generating Raster Image

To generate an image on the fly without saving it, you should use the CreateImage method:

Generating Image	Copy Code
NDrawingRasterImageExporter imageExporter = new NDrawingRasterImageExporter(drawingView.Document); NImage image = imageExporter.CreateImage(drawingView.ActivePage.Bounds, NRaster.DefaultResolution);

Copying to Clipboard

To copy the image to the clipboard, you should use the CopyToClipboard method:

Generating Image	Copy Code
NDrawingRasterImageExporter imageExporter = new NDrawingRasterImageExporter(drawingView.Document); imageExporter.CopyToClipboard(drawingView.ActivePage.Bounds, NRaster.DefaultResolution);