ygrid, redraw

Hi there,

I'have a couple of problems using the ygrid widget from lisp.ystok.ru/ygrid.

Has anybody more examples than the single one provided in the 
distribution of ygrid?

Changes in the grid do not automatically lead to redrawing it. Only 
after hiding and redisplaying the window, the changes get displayed. 
However, I can't user gp:invalidate-rectangle, because ygrid is not a 
geaphics port. (Yet it is defined using define-interface).

Any help on this?

Yours,
Reinhard Oldenburg
*
*