For debugging purposes, the display server can just dump the screen to a file or a serial port itself. The only reason you would need this in the protocol is so other arbitrary applications could capture the screen.
Re:I'm tired of this anti-Wayland horseshit
by drran on Tuesday February 02, 2021 @04:11PM
(#26006735)
Screenshots on embedded is very useful in some cases, like debugging, or information sharing or archiving, which often performed by smartphone camera today.
For debugging purposes, the display server can just dump the screen to a file or a serial port itself. The only reason you would need this in the protocol is so other arbitrary applications could capture the screen.