I thought applications were supposed not to be able to spy on each other, but can take a screenshot of the whole screen without (AFAICS) any special privileges. How does that work?

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@raboof @yuka

I do not know, but @emersion would... and I'm interested in the answer as well.

@raboof It uses a protocol extension: It’s up to the compositor to implement this extension and restrict how it can be used.

@yuka ok, so it looks like sway (actually volare ;) ) does wlr_screencopy_manager_v1_create ( and wlroots doesn't seem to have an option to turn this on/off dynamically yet AFAICS ( - though I might have missed it ;)

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