Aspose::Words::Saving::MetafileRenderingOptions::get_RenderingMode method

MetafileRenderingOptions::get_RenderingMode method

Gets or sets a value determining how metafile images should be rendered.

Aspose::Words::Saving::MetafileRenderingMode Aspose::Words::Saving::MetafileRenderingOptions::get_RenderingMode() const

Remarks

The default value depends on the save format. For images it is Bitmap. For other formats it is VectorWithFallback.

Examples

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

void HandleBinaryRasterWarnings()
{
    auto doc = MakeObject<Document>(MyDir + u"WMF with image.docx");

    auto metafileRenderingOptions = MakeObject<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->set_EmulateRasterOperations(false);

    // Set the "RenderingMode" property to "VectorWithFallback" to try to render every metafile using vector graphics.
    metafileRenderingOptions->set_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.
    auto saveOptions = MakeObject<PdfSaveOptions>();
    saveOptions->set_MetafileRenderingOptions(metafileRenderingOptions);

    auto callback = MakeObject<ExPdfSaveOptions::HandleDocumentWarnings>();
    doc->set_WarningCallback(callback);

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

    ASSERT_EQ(1, callback->Warnings->get_Count());
    ASSERT_EQ(u"'R2_XORPEN' binary raster operation is not supported.", callback->Warnings->idx_get(0)->get_Description());
}

class HandleDocumentWarnings : public IWarningCallback
{
public:
    SharedPtr<WarningInfoCollection> Warnings;

    void Warning(SharedPtr<WarningInfo> info) override
    {
        if (info->get_WarningType() == WarningType::MinorFormattingLoss)
        {
            std::cout << (String(u"Unsupported operation: ") + info->get_Description()) << std::endl;
            Warnings->Warning(info);
        }
    }

    HandleDocumentWarnings() : Warnings(MakeObject<WarningInfoCollection>())
    {
    }
};

See Also

Aspose::Words::Saving::MetafileRenderingOptions::get_EmulateRenderingToSizeOnPageResolution method Aspose::Words::Saving::MetafileRenderingOptions::get_UseEmfEmbeddedToWmf method