Warning

IWarningCallback.Warning method

Aspose.Words invokes this method when it encounters some issue during document loading or saving that might result in loss of formatting or data fidelity.

public void Warning(WarningInfo info)

Examples

Shows how to set the property for finding the closest match for a missing font from the available font sources.

// Open a document that contains text formatted with a font that does not exist in any of our font sources.
Document doc = new Document(MyDir + "Missing font.docx");

// Assign a callback for handling font substitution warnings.
WarningInfoCollection warningCollector = new WarningInfoCollection();
doc.WarningCallback = warningCollector;

// Set a default font name and enable font substitution.
FontSettings fontSettings = new FontSettings();
fontSettings.SubstitutionSettings.DefaultFontSubstitution.DefaultFontName = "Arial";
fontSettings.SubstitutionSettings.FontInfoSubstitution.Enabled = true;

// Original font metrics should be used after font substitution.
doc.LayoutOptions.KeepOriginalFontMetrics = true;

// We will get a font substitution warning if we save a document with a missing font.
doc.FontSettings = fontSettings;
doc.Save(ArtifactsDir + "FontSettings.EnableFontSubstitution.pdf");

foreach (WarningInfo info in warningCollector)
{
    if (info.WarningType == WarningType.FontSubstitution)
        Console.WriteLine(info.Description);
}

See Also