Hi Richmond
This works (both scripts in the button):
on mouseUp
put goRed()
end mouseUp
function goRed
set the backGroundColor of card 1 to red
end goRed
I think the general idea is that a function returns information. So
date() returns the date. But just having a line "date()" in the script
causes an error because you haven't told it what to do with the info
being returned. So you need "put data()" and then the info will go to
the message box.
Your function doesn't return any data. That's your choice when you write
it. But the engine is still expecting a function to return info, so you
still have to say "put" trigger the function.
You could write your function with a parameter:
function goRed foo
set the backGroundColor of foo to red
end goRed
Then call the function like this:
put goRed("card 1")
put goRed("card 3")
etc., and the one function can be used to turn both card 1 and card 3
(and any other object you specify in foo) red.
Hope that helps.
Tim Selander
Tokyo, Japan
On 7/10/17, 15:48, Richmond Mathewson via use-livecode wrote:
I am obviously missing something . . .
. . . so badly so that I've been trawling Danny Goodman's "Complete"
HC 2 . . .
and NOT getting 'it' . . .
SO: one can set up a custom command:
on GoRed
set the backGroundColor of card 1 to red
end GoRed
and one can call it:
on mouseUp
do GoRed
end mouseUp
and one can set up a custom function:
function GoRed
set the backGroundColor of card 1 to red
end function
Now: is the reason I cannot call that function because it takes NO
parameters?
Richmond.
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