HyphenationCallback Property

public static IHyphenationCallback Callback { get; set; }

Public Shared Property Callback As IHyphenationCallback
	Get
	Set

public:
static property IHyphenationCallback^ Callback {
	IHyphenationCallback^ get ();
	void set (IHyphenationCallback^ value);
}

static member Callback : IHyphenationCallback with get, set

public void RegisterDictionary()
{
    // Set up a callback that tracks warnings that occur during hyphenation dictionary registration
    WarningInfoCollection warningInfoCollection = new WarningInfoCollection();
    Hyphenation.WarningCallback = warningInfoCollection;

    // Register an English (US) hyphenation dictionary by stream
    Stream dictionaryStream = new FileStream(MyDir + "hyph_en_US.dic", FileMode.Open);
    Hyphenation.RegisterDictionary("en-US", dictionaryStream);

    // No warnings detected
    Assert.AreEqual(0, warningInfoCollection.Count);

    // Open a document with a German locale that might not get automatically hyphenated by Microsoft Word an english machine
    Document doc = new Document(MyDir + "Unhyphenated German text.docx");

    // To hyphenate that document upon saving, we need a hyphenation dictionary for the "de-CH" language code
    // This callback will handle the automatic request for that dictionary 
    Hyphenation.Callback = new CustomHyphenationDictionaryRegister();

    // When we save the document, it will be hyphenated according to rules defined by the dictionary known by our callback
    doc.Save(ArtifactsDir + "Hyphenation.RegisterDictionary.pdf");

    // This dictionary contains two identical patterns, which will trigger a warning
    Assert.AreEqual(1, warningInfoCollection.Count);
    Assert.AreEqual(WarningType.MinorFormattingLoss, warningInfoCollection[0].WarningType);
    Assert.AreEqual(WarningSource.Layout, warningInfoCollection[0].Source);
    Assert.AreEqual("Hyphenation dictionary contains duplicate patterns. The only first found pattern will be used. " +
                    "Content can be wrapped differently.", warningInfoCollection[0].Description);
}

/// <summary>
/// Associates ISO language codes with custom local system dictionary files for their respective languages
/// </summary>
private class CustomHyphenationDictionaryRegister : IHyphenationCallback
{
    public CustomHyphenationDictionaryRegister()
    {
        mHyphenationDictionaryFiles = new Dictionary<string, string>
        {
            { "en-US", MyDir + "hyph_en_US.dic" },
            { "de-CH", MyDir + "hyph_de_CH.dic" }
        };
    }

    public void RequestDictionary(string language)
    {
        Console.Write("Hyphenation dictionary requested: " + language);

        if (Hyphenation.IsDictionaryRegistered(language))
        {
            Console.WriteLine(", is already registered.");
            return;
        }

        if (mHyphenationDictionaryFiles.ContainsKey(language))
        {
            Hyphenation.RegisterDictionary(language, mHyphenationDictionaryFiles[language]);
            Console.WriteLine(", successfully registered.");
            return;
        }

        Console.WriteLine(", no respective dictionary file known by this Callback.");
    }

    private readonly Dictionary<string, string> mHyphenationDictionaryFiles;
}