public virtual void ZoomIn()
{
if (TalkWindowForm != null && TalkWindowTextBox is TextBoxBase)
{
TalkWindowForm.Invoke(new MethodInvoker(delegate
{
if (TalkWindowTextBox.Font.Size + FontSizeDelta <= MaxFontSize)
{
if (setFont(TalkWindowTextBox.Font.Size + FontSizeDelta))
{
notifyFontChanged();
}
}
}));
}
}