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mescalinum

macrumors newbie
Original poster
Nov 10, 2015
1
0
Sometimes when attaching your mac to a cheap projector, and you want mirroring turned on, you are forced to have a resolution like 640x480 on your main display as well.

Is there some way even with 3rd party software to show on the external display a portion of your main display?

Or otherwise, is there some software that can show in a window a preview of the secondary display?

That would turn out very handy because you can see and do things on your main display without showing to your audience, but at the same time see on your main display what the audience is seeing.
 
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