Creating a delay in labview until a c program completes in system exec.vi without using "wait until completeion"

[Dror]

I want to run two related C programs. The second one reads a text file that the first created. So I need to wait until the first is completed.

I use "system exec.vi" and I know I can set "wait until completeion" to true, but this way I won't see the screen and the C program announcments. Someone has an idea?

[GerdW]

Hi Dror,

my idea: just wait for the text file created by the first C program. Check for the presence of this file (maybe using 'list directory') or check for the size of this file...

[tbob]

Just use one of the System Exec outputs to create data flow.  For example, wire the Error Out from System Exec to a sequence structure and put some code in the structure.  That code will not execute until the system exec is completed.

[Dror]

Hi Gerdw

Good idea, it works

thanks