If I execute
'grid' []wi 'xPrintWindow' 0
I get
[]WI ERROR: APL.Grid exception 80004005 LENGTH ERROR: You must specify Row Col Rows Cols when non-zero DC specified
I suspect that the non-zero DC test is coded backwards.
Maybe there all over on the Visual APL side crowing over the new RC5.
Maybe...
/mas
Your suspicion seems correct. This has been logged as a bug.
Thank you for reporting it.
APL2000 Support
This bug will be fixed in the next release of the grid.