class TextWidget has no method to GetText but does have a method to SetText.
There are many "Get" options for other parts of the widget, but not the text of the widget.
class TextWidget extends Widget
{
...
proto native int GetOutlineSize();
proto native int GetOutlineColor();
proto native int GetShadowSize();
proto native int GetShadowColor();
proto native float GetShadowOpacity();
proto native bool GetItalic();
proto native bool GetBold();
proto void GetTextSize(out int sx, out int sy);
proto native float GetTextProportion();
...
};