GNU bug report logs - #51685
29.0.50; Yanking from clipboard broken (Win10)

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: arash <at> gnu.org, 51685 <at> debbugs.gnu.org
Subject: bug#51685: 29.0.50; Yanking from clipboard broken (Win10)
Date: Mon, 08 Nov 2021 15:38:12 +0200

> From: Lars Ingebrigtsen <larsi <at> gnus.org>
> Date: Mon, 08 Nov 2021 12:27:43 +0100
> Cc: 51685 <at> debbugs.gnu.org
> 
> >> 1) Start Emacs with emacs -Q (from a MinGW64 shell)
> >> 2) Open Windows Editor
> >> 3) Enter control <at> debbugs.gnu.org in Editor
> >> 4) Mark and Copy in Editor
> >> 5) Yank in scratch with C-y
> >
> > Does reverting 5e66c75e0 fix the issue?
> 
> I've reverted it now and will have to reexamine the problem before
> attempting a new fix.

Whatever you do, don't decode the selection text on MS-Windows.  It is
already decoded (see w32-get-clipboard-data), and
selection-coding-system is UTF-16 on MS-Windows, so decoding a decoded
string by that will not do anything useful ;-)

The existing code carefully side-steps the decoding by looking at the
foreign-selection property on the string, which the Windows code
doesn't set.  But your changes removed that test, and thus caused the
clipboard text to be decoded on Windows.

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