Not for video display
I purchased iDisplay so I could use my iPad as a secondary monitor for displaying videos. My mistake for not doing more research. The app’s notes mentioned that video was “laggy,” but it would not let me drag a video window onto my iPad at all. (My main machine is an iMac.) I must mention, in response to other reviews that take issue with set up that my set up and overall ease of use was fine. Fingers crossed that further updates of this app smooth things out.
MikeSooch about
iDisplay, v3.2.0