MetafileRenderingOptions

MetafileRenderingOptions class

Allows to specify additional metafile rendering options.

To learn more, visit the Handling Windows Metafiles documentation article.

public class MetafileRenderingOptions

Constructors

Name	Description
MetafileRenderingOptions()	The default constructor.

Properties

Name	Description
EmfPlusDualRenderingMode { get; set; }	Gets or sets a value determining how EMF+ Dual metafiles should be rendered.
EmulateRasterOperations { get; set; }	Gets or sets a value determining whether or not the raster operations should be emulated.
EmulateRenderingToSizeOnPage { get; set; }	Gets or sets a value determining whether metafile rendering emulates the display of the metafile according to the size on page or the display of the metafile in its default size.
EmulateRenderingToSizeOnPageResolution { get; set; }	Gets or sets the resolution in pixels per inch for the emulation of metafile rendering to the size on page.
RenderingMode { get; set; }	Gets or sets a value determining how metafile images should be rendered.
UseEmfEmbeddedToWmf { get; set; }	Gets or sets a value determining how WMF metafiles with embedded EMF metafiles should be rendered.
UseGdiRasterOperationsEmulation { get; set; }	Gets or sets a value determining whether or not to use the GDI+ for raster operations emulation.

Examples

Shows added a fallback to bitmap rendering and changing type of warnings about unsupported metafile records.

public void HandleBinaryRasterWarnings()
{
    Document doc = new Document(MyDir + "WMF with image.docx");

    MetafileRenderingOptions metafileRenderingOptions = new MetafileRenderingOptions();

    // Set the "EmulateRasterOperations" property to "false" to fall back to bitmap when
    // it encounters a metafile, which will require raster operations to render in the output PDF.
    metafileRenderingOptions.EmulateRasterOperations = false;

    // Set the "RenderingMode" property to "VectorWithFallback" to try to render every metafile using vector graphics.
    metafileRenderingOptions.RenderingMode = MetafileRenderingMode.VectorWithFallback;

    // Create a "PdfSaveOptions" object that we can pass to the document's "Save" method
    // to modify how that method converts the document to .PDF and applies the configuration
    // in our MetafileRenderingOptions object to the saving operation.
    PdfSaveOptions saveOptions = new PdfSaveOptions();
    saveOptions.MetafileRenderingOptions = metafileRenderingOptions;

    HandleDocumentWarnings callback = new HandleDocumentWarnings();
    doc.WarningCallback = callback;

    doc.Save(ArtifactsDir + "PdfSaveOptions.HandleBinaryRasterWarnings.pdf", saveOptions);

    Assert.AreEqual(1, callback.Warnings.Count);
    Assert.AreEqual("'R2_XORPEN' binary raster operation is not supported.",
        callback.Warnings[0].Description);
}

/// <summary>
/// Prints and collects formatting loss-related warnings that occur upon saving a document.
/// </summary>
public class HandleDocumentWarnings : IWarningCallback
{
    public void Warning(WarningInfo info)
    {
        if (info.WarningType == WarningType.MinorFormattingLoss)
        {
            Console.WriteLine("Unsupported operation: " + info.Description);
            Warnings.Warning(info);
        }
    }

    public WarningInfoCollection Warnings = new WarningInfoCollection();
}

See Also

• namespace Aspose.Words.Saving
• assembly Aspose.Words