Brama,
You can ran into a slight problem if using type() if the parameter is a form property. For example, run any form and type in the command window:
activate screen
? type('_screen.forms(1).name[1]')
It will return 'C' although name is not an array. I think the best (but not the fast) solution is using type() and alen()
? type('alen(_screen.forms(1).name)')='N'
Hugo
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges