public string Text {
	get {
		return GetText (StartIter, EndIter, false);
	}

	set {
		gtk_text_buffer_set_text (Handle, value, 
				System.Text.Encoding.UTF8.GetByteCount(value));
	}
}

public void Clear ()
{
	Delete (StartIter, EndIter);
}

// overload to paste clipboard contents at cursor editable by default.
public void PasteClipboard (Gtk.Clipboard clipboard)
{
	gtk_text_buffer_paste_clipboard(Handle, clipboard.Handle, IntPtr.Zero, true);
}