[Jprogramming] sysdata in the isigraph char event

[bill lam]

does this work?

test_pic_char=: 3 : 0
if. sysdata -: ,21{a. do.
wd 'setxywh pic 0 0 150 150'
end.
)

Jimmy Miller wrote:
> Thanks for the reply.  I got to the point where I could test for
> individual letter keys, but I'm still having trouble with the arrows.
> If I try to test for the characters that correspond to the arrow keys,
> like ┤:
> 
> test_pic_char =: 3 : 0
> if. sysdata = '┤' do.
> wd 'setxywh pic 0 0 150 150'
> end.
> )
> 
> I get a 'length error' when the program runs.  Any ideas?
> 
> On 6/3/07, Chris Burke <cburke at jsoftware.com> wrote:
>> Jimmy Miller wrote:
>> > I've been trying to get an isigraph to move to a certain location when
>> > the user presses the up arrow key.  I figured out how to get it to
>> > move based on any key:
>> >
>> > test_pic_char =: 3 : 0
>> > wd 'setxywh pic 0 0 150 150'
>> > )
>> >
>> > But I'm unsure how to detect the up key.  Based on the isigraph events
>> > page (http://www.jsoftware.com/help/user/isigraph_events.htm), I
>> > figured sysdata would be 21 when the user presses the up key:
>>
>> The datatype of sysdata is always character. The numbers shown are the
>> indices of the character values in a. (alphabet).
>>
>> You can just press a key, observe the value of sysdata, and then program
>> for that value.
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>>
> 
> 
> 
> ------------------------------------------------------------------------
> 
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-- 
regards,
bill