Thanks for the extension & clarification Jim - I left this out of my
explanation.
Phil
Jim Ault wrote:
On 2/10/06 3:37 PM, "Phil Davis" <[EMAIL PROTECTED]> wrote:
When you declare a global within a handler, the data that goes into it
will stay there, but no other handler can access it - the place where
you declare a variable determines its scope. Put the "global" statement
at the top of your script, outside of all handlers; then all handlers in
that script can access it.
If your 'openField' handler is in a different script (like of a field),
then that script will also need to contain a "global varCmdLineParamIn"
statement for the var to be accessible there.
Actually,
* no other handler can access it * is not correct.
Declaring a global anywhere creates it in the Rev app. It is live until you
quit Rev or do "delete global gComputerName"
--example
on doThisStep
global gComputerName
put "Fred" into gComputerName
end doThisStep
--at this point, the Rev app has control over the global gComputerName and
any stack or handler can access this global by doing
on buildMyString
global gComputerName
put "Working on " & gComputerName into stringToWrite
end buildMyString
Declaring the global in any handler will give that handler access to it.
The confusion comes in when you consider that the following:
--top of stack script
global gComputerName
--now means that any handler in this script has access to the global without
having to declare it. Of course, declaring it again in a handler makes it
appear in the Variable Watcher twice (or more in 2.6.1 Mac) so you should
only declare the globals one time.
Hope this helps
Jim Ault
Las Vegas
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