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Message-ID:	<29ca918e-5996-4f04-8812-9f84e73081d5@SystematicSW.ab.ca>
Date:	Mon, 23 Feb 2026 23:04:31 -0700
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Subject:	Re: General clipboard issue on cygwin (mintty, putclip, getclip,
	/dev/clipboard)
To:	cygwin AT cygwin DOT com
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From:	Brian Inglis via Cygwin <cygwin AT cygwin DOT com>
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Cc:	Brian Inglis <Brian DOT Inglis AT SystematicSW DOT ab DOT ca>
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X-MIME-Autoconverted:	from base64 to 8bit by delorie.com id 61O65N5p3850191

On 2026-02-23 18:36, Takashi Yano via Cygwin wrote:
> I encountered a clipboard issue common to cygwin.
> 
> Affected components:
> /dev/clipboard, putclip/getclip, mintty
> 
> The issue:
> If the clipbard is opened by `OpenClipboard(NULL)`, occasionally
> SetClipboardData() and GetClipboardData() fails with
> ERROR_CLIPBOARD_NOT_OPEN.
> 
> When UltraVNC Viewer (https://uvnc.com/) is opened, this issue
> happens with a very high probability (> ~90%).
> 
> $ echo AAAA > /dev/clipboard
> echo: write error: Permission denied
> 
> On mintty, text selection by mouse and clicking center button
> fails at the first attempt.
> 
> For putlclip/getclip, the following command outputs nothing
> in a few attempts. ("ABCD" is lost.)
> $ echo ABCD |putclip; for a in `seq 100`; do getclip |putclip; done; getclip

Hi,

Your patch attachment is typed as:

	Content-Type: plain/text;

rather than the standard mime type text/plain;
please check your /etc/mime.types, ~/.sylpheed/mime.types, ~/.*/mime.types, or 
other alternatives for that incorrect mime type mapping, replace with the 
standard, and resend with the attachment, so we can read it inline, without 
saving or other operations to decode it.

You may want to consider updating your dated MUA to the more recent development 
version, or another more currently supported MUA.

-- 
Take care. Thanks, Brian Inglis              Calgary, Alberta, Canada

La perfection est atteinte                   Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter  not when there is no more to add
mais lorsqu'il n'y a plus rien à retrancher  but when there is no more to cut
                                 -- Antoine de Saint-Exupéry

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