how to call sub-vis with a click of a button?

[fmpfmpf]

Is there any block that functions llike "System Exec" ?

"System Exec" calls only .exe file.

I need a block that can call a Sub-VI.

TQ

[Darin.K]

Check out the Call By Reference Node.

[tbob]

A simple polling loop can do this.

So can an event structure:

[fmpfmpf]

Attached are 2 test VIs.

Program3 is the main VI which calls Dialog.

The programm should work as described:

When Enum = wait, nothing happens.

When Enum = Show Dialog, the Dialog.vi will be executed and display the random generated value. Enum's value will then change back to "Wait".

I can then close the dialog.vi and reopen it again by selecting "Show Dialog"

Basically, i need to call the Sub-VI and it must run independently from the Main-VI.

Thank you.

[fmpfmpf]

oops, here are the 2 VIs.

[JÞB]

Check out this thread.  There is an example of code that launches a specific vi (from a list) and waits for the vi to complete.  When the launched vi finishes control is returned to the main vi

Is that something like what you want ?

[fmpfmpf]

not really.  for my case, the subVI should act like a pop up screen, and run continuously until i close it. And can be call out again when i need it.

in my previous program, my sub Vi is being called and close continuously.

[fmpfmpf]

Hallo tbob,

i tried using the 1st example that u show me (the one with the case structure). but it doesnt solve my problem, because when i close the sub Vi, i want my main program to continue running. Is that anyway, that when i call the SubVi out and it will run independently as long as my main program is running?

[tbob]

---

fmpfmpf wrote:

Hallo tbob,

i tried using the 1st example that u show me (the one with the case structure). but it doesnt solve my problem, because when i close the sub Vi, i want my main program to continue running. Is that anyway, that when i call the SubVi out and it will run independently as long as my main program is running?

---

You need to mention these things if you want a correct solution.  Here is a corrected version of your Program3 vi.  You don't really need an enum.  You could use a simple boolean switch set to Switch When Released.

[tbob]

Here is a way to do it with the example I first showed.  I don't know why you could not get it to work, it does.  I changed your diaglog vi to have a stop button to close its window.  Closing the subvi does NOT close the main.

Message Edited by tbob on 05-18-2010 04:46 PM