How to circumvent using an out parameter in an anonymous method block?

public Boolean TryGetValue(TKey key, out TValue value)
{
    Boolean got = false;
    WithReaderLock(delegate
    {
        got = dictionary.TryGetValue(key, out value);
    });
    return got;
}

public bool TryGetValue(TKey key, out TValue value)
{
    bool got = false;
    TValue tmp = default(TValue); // for definite assignment
    WithReaderLock(delegate
    {
        got = dictionary.TryGetValue(key, out tmp);
    });
    value = tmp;
    return got;
}

public Boolean TryGetValue(TKey key, out TValue value)
{
    internalLock.AcquireReaderLock(Timeout.Infine);
    try
    {
        return dictionary.TryGetValue(key, out value);
    }
    finally
    {
        internalLock.ReleaseReaderLock();
    }
}