Trigger event when CLI run has completed

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1

As in the title I would like to be able to trigger some code after a CLI run has completed.

I know I can use the parameter wait_for_completion=True to pause the code execution, however if I do this the GUI does not update and the qCLIProgressBar does not run making it look as though the program has hung.

I have tried setting a connect condition to be triggered by the progress bar…

self.bar3.connect(‘valueChanged(int)’, self.onBar3)

but the qSlicerCLIProgressBar does not seem to give out the same signals as the qProgressBar.

I also tried using a While / Sleep loop to check the status of the cliNode (cliNode.GetStatus()) but this freezes the GUI just like the wait_for_completion parameter.

Is there any way to wait for the CLI to complete without freezing the GUI or (which would seem neater to me) to trigger a new routine once it has completed.

Thanks

2

Yes, you can put an observer on the command line module node and get events when the state changes. See “Running CLI in the background” here:

https://www.slicer.org/wiki/Documentation/Nightly/Developers/Python_scripting#Running_a_CLI_from_Python

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