can i edit my program while the program is running?

[Dusty]

With some programming languages you can pause the program while it's running, make a change to it and continue. This feature would be very usefull to me. Does anyone know a routine to accomplish this in LabView?
Thanks
Dusty

[Joe_H]

I really know of no way of doing this, because you are either in run mode or in edit mode. You can do some debugging but not like that. If someone else out there knows of a way to do that then I would like to know also.

[GerdW]

Hello Dusty,

there's a way to do that: You can edit all those subvi's that you call by reference from a (running) main vi.

Hope this helps,
GerdW

[Joe_H]

But if he is not calling any subvi's by reference then he cannot. lets say his code is running then he realizes he needed to add 1 instead of subtract 1 then he cannot pause the code and change this. Correct

[Dusty]

Thanks for the response,
however GerdW I do not understand what you are saying. I was looking for a way to "Pause" the program while running and edit some constant or something in the program and start it back up again.
Thanks
Dusty

[Dusty]

jhoskins, you got it right, thats what i want to do

[GerdW]

Hello Dusty,

I have a program with some filter routines in a library. The user can select one of the filters and process data with it.

Because of the "call by reference" I can edit those filters while the main vi is running. And I can even add or delete the filters, as the main vi has a "scan" routine to check for new filters... I thought such a mechanism could be helpful to you.

Best regards,
GerdW

[Joe_H]

Hey GerdW I would like to know how you did that. I would find this very useful

[Dusty]

GerdW,
Are you saying that the main.vi will not call your filter subvi until a user selects a specific vi to run?

[tst]

The short answer, once again, is that you can't pause the VI in the middle and change a constant. You can't change code that's "running" or "waiting to run". If you want to change a value during development, you should have it as control until you've determined the proper value for it. There are ways of manipulating objects on the BD programmatically, but it's not supported by NI and you probably don't want to go into that for something as small as this.