Here is an example of an array with negative shape:
'fm' Œwi 'Create' 'Form' 'Close'fm 'fm.p' Œwi 'Create' 'Picture'fm.p 'fm.p' Œwi 'bitmap' 'C:\APLWin52\Examples\yellow.bmp' ½'fm.p' Œwi 'image'¯1 ¯1
Yikes!
Thanks for bringing this to our attention. It is on the list for us to investigate. As you may already know, this occurs only when the Form is closed.
APL2000 Support