When you create a visual program using the User Interface, the .net
file saved is a script, so you can run it in script mode. (User
Interface-specific information, such as placement of tools on the
canvas, is saved as comments in the script.) If you have a sequencer in
your visual program, the User Interface adds a "play" command as
the last line of the .net file. Thus you can edit this line out and add
your own options if you want to do something other than play forward
through the sequence once (see "Sequencer"). If you do not
have a sequencer in your visual program, the User Interface adds a call
to "main()", the main macro which is defined to be your top level
visual program. If you do not want the program to automatically execute
when you read it in as a script, remove or comment out the call to
"main()".
If your visual program uses macros, the user interface will add an
"include" line so that the macros will be included when the visual
program is run as a script. You can look at the top of the .net file to
see which macros are referenced by the program. Thus if you need to
send a collection of visual programs and macros to another person, this
can help you to make sure you have sent all the necessary tools.
10.9 Running .net files in
script mode
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