[Gambas-user] Is there a way to test if a gridview scrollbar is actually visible at runtime?

[Bruce]

I'm trying to co-ordinate a set of 4 gridview/tableviews.  Depending on 
the number of columns and rows in each I need to adjust the heights of 
others and also perform similar scrolling on the others when one is 
scrolled.
I can see which scrollbars are "allowed" in each but I can't find a way 
to check which ones are actually visible at any particylar point in time.

please help.
b

(as usual long explanation...
it's a four way grid, i.e. 2x2 and so if the user scrolls [0,0] to the 
right then all the others need to scroll similarly. Simple? Fine? No. 
The grids are inside hsplits and vsplits so the presence of any 
scrollbar is entirely dependant on the way the user has currently 
oriented the entire heirarchy of splits and grids.