[clawoo]

> The fact that iOS plays nicely with apps that ask to prevent screenshotting is a foundational bug.

In fact, iOS does not provide any tools to prevent screenshotting, on the contrary, this feature requires some nasty hacks to pull off.

One of them is actually even patented and it requires rendering whatever you want to protect (text, image, etc) into a one frame DRM protected video and rendering that instead.

[justin_oaks]

I'm imagining another method whereby you have a high frame rate video that only displays part of the image on any individual frame. Because of the high frame rate, the individual frames appear to merge together as a single image to the human eye.

Any screenshot would only get one frame. You may have to stitch together multiple frames to get any useful data.

I wonder if this would work.

[clawoo]

I actually tried something like this at one point but I always ended up with something seizure-inducing.