Screen video capture with VLC command lines

Hi,
I need to do a program in LabVIEW that saves a video of my screen. I want it to open VLC by sending a command line and then start/stop the acquisition when I press a button. How could I do that? I didn't find the command lines to tell VLC to start the screen video acquisition... Can anyone help me and tell me what should I write in the command lines? Thanks for help!!

Look up the help on the command line program then use the system exec to run that. I'd start by figuring out what you need to do with an empty command prompt to play with.
Also I've seen others do this same thing using ActiveX which VLC installs.
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Screen video capture with VLC command lines

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