Clever Geek Handbook

Reset a hidden (or minimized) X11 window

I want to reset the contents of the X window. Like this:

xwd -id | convert - capture.png

... which works well enough as long as the target window is not hidden (completely or partially behind other windows) or minimized.

Any idea on how to do this?

I guess we'll somehow have to send a "recolor" signal to a hidden window and then capture its response or something ... :)

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Do you have an objection to bring it to the fore?



If not, you can use a tool like wmctrl to bring the window to the front (and maximize it, etc.), use xwd to grab it, then send it back to where it came from with wmctrl.

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