Desktop via QLab

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tcgass

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Sep 11, 2026, 1:22:02 AM (11 days ago) Sep 11
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Hi everyone,

I’m looking for a clean way to show my Mac screen through QLab during lectures and workshops.

I’m aware that I could simply switch macOS between extended desktop and screen mirroring, but I’d prefer to avoid this, as switching between mirrored and non-mirrored modes can cause interruptions, black screens or changes in the display configuration.

My goal is to be able to switch seamlessly between:

  • prepared material played back from QLab, such as videos, images or presentations
  • a live view of my Mac screen, so I can demonstrate the use of different software applications in real time

Ideally, I’d like the Mac screen to behave like just another video source or cue inside QLab, so that I can switch between it and other QLab content without changing the macOS display configuration.

Is there a reliable way to achieve this directly in QLab, for example via a Camera Cue, Syphon, NDI, or another method?

What setup would you recommend for a stable lecture/presentation environment?

Many thanks!


micpool

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Sep 11, 2026, 4:23:54 AM (11 days ago) Sep 11
to QLab

NDI scan  converter software as source for QLab Camera cue 

tcgass

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Sep 11, 2026, 2:45:29 PM (11 days ago) Sep 11
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Thanks Mic, works like a charm! 
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