[aplusdev] Problems with screen management.

[Vladmir N. Kutinsky]

Hello,
In my work I use the "Tree" display class to represent hierarchial
structure of my data. In 4.18.5 version of A+  things like
        $load s
        t<-(`a;<(`b`c;((`4;<0);(`5;<0))))
        show `t is `tree
work  fine.
However, when I try to
        show (unpack)s.COLOR_NAMES
I get
        [error]  s.COLOR_NAMES: value
The same is true for
        s.hc `112233
                    readmat open: No such file or directory
                    readmat open: No such file or directory
                    [error]   : type
                    [error]  s.COLOR_INFORMATION: value
                    [error]  s.COLOR_NAMES: value

At the same time things like
        s.FONT_NAMES
work fine...


Later I decided to check the 4.18.7 version of A+. Here, I can't even
        show `t is `tree
it says
        [error] variable t cannot be bound to tree
and, to crown it all,
        s.COLOR_NAMES
doesn't work again...

What is the problem? Is it that I do something wrong?

Best regards,
Vladimir