Local variable without frontpanel object

Question

is there a possibility to create local variables without the need of a frontpanel object? I need zhem for program ccontrolontrol but don't want to show them to the user.
Thanks a lot,
greetings from Germany
Karin

Answer 1

Lynn, Marc, and "tbob",
Thanks for your replies.  I detect the common theme of keeping my variables in bundles, but I'm not experienced enough to see how to apply this to my problem of communicating between parallel event handlers.  If you have the time and patience, I have attached a very simple example of what goes on in my program.
I have three independent systems:  a motion system that carries around a microscope and digital camera.  Each system has its own event handler.  The motion system responds to user commands to move the microscope around, the microscope handler responds to changes in focus, zoom, etc, and the camera event handler continuously snaps pictures to provide a "live" image.
But sometimes the loops need to talk to each other. For example, autofocusing is handled by the camera event handler, because it is based on image contrast, and that is the event handler that is acquiring the images.  So that means the camera event handler should take over the microscope during auto focus.  So the microscope event handler needs to be prevented from trying to get in on the act.
So here is what the example illustrates:  some motion has just ended "normally".  The timeout event in the motion system signals the camera system to perform an auto focus (and waits for the focus to complete before allowing any movement).  The camera system signals the microscope system to perform a "stop" event, does the auto focus, releases the microscope from the stop event, and signals back to the motion loop that auto focus is done. 
I, of course, thought this kind of thing was very clever!  More experienced Labviewistas may have other opinions....
-Geoff
Attachments:
too many indicators.vi ‏24 KB