Adrian,
To understand the selectedChunk, put the following script into a field:
on selectionChanged
put the selectedChunk
end selectionChanged
and select a text in the field, then change a different text. You'll
see that the selectedChunk is not a text but a reference to that text.
The parameter that goes with the keyDown message contains only one
character. Your parameter theKey cannot contain "-1", it can only
contain "-" or "1" or "+" etc.
I don't think that the keyDown message would be a good way to check
the contents of fld "insertionField". You might want to use the
closeField message and the returnInField and enterInField messages
instead.
Probably, you chose a wrong approach. I recommend changing your
interface. If you want to add a number which is either 0, -1 or +1,
make a slider or a menu with three options. This way, it is easier to
make a choice and the user can't make a mistake by entering an
invalid number.
Best,
Mark
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Op 6-okt-2006, om 12:48 heeft Adrian Williams het volgende geschreven:
if the selectedChunk (theKey, field "insertionField") is -1 then
answer "endChar is -1"
else
if the selectedChunk (theKey, field "insertionField") is +1 then
answer "endChar is +1"
else
if the selectedChunk (theKey, field "insertionField") is 0 then
beep
end if
end if
end if
end keyDown
What am I missing?
Many thanks,
Adrian
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