clipboard.rst
author Oleksandr Gavenko <gavenkoa@gmail.com>
Mon, 30 Jan 2017 00:44:30 +0200
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.. -*- coding: utf-8; -*-
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=====================
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 Clipboard/selection
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=====================
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.. contents::
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   :local:
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MS Windows
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==========
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X Windows
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=========
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X11 selection transfers (which both PRIMARY and CLIPBOARD are instances of)
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are done through synthesized X11 events and properties changes.
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The messages used to transfer the selections have a maximum size that's
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actually quite low (a few kilobytes).
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See
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  http://standards.freedesktop.org/clipboards-spec/clipboards-latest.txt
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  http://www.jwz.org/doc/x-cut-and-paste.html
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  http://en.wikipedia.org/wiki/X_Window_selection
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  http://www.emacswiki.org/cgi-bin/wiki/CopyAndPaste
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xclipboard
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==========
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The xclipboard command emulates the traditional Macintosh style clipboard by
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claiming ownership of the CLIPBOARD selection and answering any requests for
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its value. When it loses the selection, it immediately asks the new owner for
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the value of the CLIPBOARD selection, makes a local copy, and then reasserts
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ownership of the CLIPBOARD. This way the clipboard contents can persist after
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the original application has exited.
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