How to screen capture screenshots or movies on the Linux framebuffer -

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How can Linux on Linux get frame buffers, screen shots or movies?

Is there any device to do this for the running program, or should the program be written and possibly controlled, frame buffer also captures capture and recording? If so, how will this program?

Many tools to do this, for example and; Consider sources for both of them, either writing one or more of your own will be easy, which captures video rather than just snapshots.

However, I would suggest that to write the framebuffer program written

between synchronizing the capturing frames (and partially writing one, or skipping Or ...)

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