Draw in output window
if the observer event is
currentGlyphChangedthe drawPath draws in output window.
or am I doing something wrong
You can only draw when there is a drawing context. Observe the events
drawBackgroundto draw additional info of a glyph in the glyph view.
So, it is not possible to draw something in the glyph view on a
something else: this doesn't work anymore? http://doc.robofont.com/api/scripting-examples/drawing-and-addobserver-example/
Yes that is possible only you have to tell a glyphview to redraw it self
UpdateCurrentGlyphView()and off course subscribe to the draw notification
(Will fix the oldstyle notification)