WarningCallback

FontSourceBase.WarningCallback property

Called during processing of font source when an issue is detected that might result in formatting fidelity loss.

public IWarningCallback WarningCallback { get; set; }

Examples

Shows how to call warning callback when the font sources working with.

FontSettings settings = new FontSettings();
settings.SetFontsFolder("bad folder?", false);

FontSourceBase source = settings.GetFontsSources()[0];
FontSourceWarningCollector callback = new FontSourceWarningCollector();
source.WarningCallback = callback;

// Get the list of fonts to call warning callback.
IList<PhysicalFontInfo> fontInfos = source.GetAvailableFonts();

Assert.That(callback.FontSubstitutionWarnings[0].Description
    .Contains("Error loading font from the folder \"bad folder?\""), Is.True);

Shows how to call warning callback when the font sources working with (FontSourceWarningCollector).

private class FontSourceWarningCollector : IWarningCallback
{
    /// <summary>
    /// Called every time a warning occurs during processing of font source.
    /// </summary>
    public void Warning(WarningInfo info)
    {
        FontSubstitutionWarnings.Warning(info);
    }

    public readonly WarningInfoCollection FontSubstitutionWarnings = new WarningInfoCollection();
}

See Also

FontSourceBase.Type FontSourceBase.GetAvailableFonts