[fpc-pascal] fpcanvas and TFPEmptyXXX classes

[Graeme Geldenhuys]

Hi,

What is the point/purpose of the TFPEmptyFont, TFPEmptyBrush,
TFPEmptyXXX etc. classes?
They come in handy while I am implementing (converting) the fpGUI
canvas class to descend from the TFPCanvas class, so I don't get
abstract errors at runtime.
But do they serve another purpose?

Regards,
  - Graeme -