I meant event callback. Or wdhandler in pre-J701.
h is the name of the verb that will lead to exception. The frontend knows
this but j.dll itself cannot unless debug is enabled.
cdcallback=: 3 : 0
q=. {:w=. 15!:17''
if. q>:#cbregs_jgtk_ do.
smoutput 'callback invalid pointer: ',":w return.
end.
h=. >q{cbregs_jgtk_
if. 3~:4!:0 <h do.
smoutput 'callback undefined handler: ',h return.
end.
try.
h~w
catchd.
smoutput 'callback run error: ',h,LF,13!:12''
end.
)
--
regards,
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