These methods ask an itexticlass object to render its IntuiText structure,
which it gets from the imageclass IA_Data attribute.  An itexticlass
object renders its IntuiText relative to the IA_Left and IA_Top attributes
it inherits from imageclass.  This method uses the JAM1 drawing mode and
the IA_FGPen to render the text.  See the imageclass description of
IM_DRAW/IM_DRAWFRAME for more details.