DMARC-Filter: OpenDMARC Filter v1.4.2 delorie.com 658NhaCv1068039
Authentication-Results: delorie.com; dmarc=pass (p=none dis=none) header.from=cygwin.com
Authentication-Results: delorie.com; spf=pass smtp.mailfrom=cygwin.com
DKIM-Filter: OpenDKIM Filter v2.11.0 delorie.com 658NhaCv1068039
Authentication-Results: delorie.com;
	dkim=pass (1024-bit key, unprotected) header.d=cygwin.com header.i=@cygwin.com header.a=rsa-sha256 header.s=default header.b=UklWzTIw
X-Recipient: archive-cygwin AT delorie DOT com
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 889494B19720
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com;
	s=default; t=1780962215;
	bh=ExpfoTDtoJho+sgsNsFNgYu5dK9zdOJKsXw4XGwVw+c=;
	h=Date:To:Subject:In-Reply-To:References:List-Id:List-Unsubscribe:
	 List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:
	 From;
	b=UklWzTIw1KU3FMVOjuiHcXsLWZTu3KtZrSjQzxNdnqpMWv2AhQwnlYN48u2QXwfEA
	 CBNSE1RKRNR+EwSM/t3XAgYVVH3uBSPx9zNFOCpY1dOpD73O+CiEmYfiCyAvFKzGIQ
	 9JnFOysm0HRdEqxv87Fuy/wlPCwSYQOAHuFZTemA=
X-Original-To: cygwin AT cygwin DOT com
Delivered-To: cygwin AT cygwin DOT com
DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 2FDC24BA2E25
ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 2FDC24BA2E25
ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1780962165; cv=none;
 b=bmPLU6rtol4O6zd1dFYA9R6kZ/tcWusc8PpdLvIlf5J7bnTBk4z8WM1fYuFaU1KxmngN0DhQ1OVBLbJIQxACVf6EqnuQu1vTELpedwwvRTM3Vxir1n/r2jNA+5SYC0T/A294BqxiLElwz4nBCJ/yYBaktVY/1eHuSYTf2PcdtyM=
ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key;
 t=1780962165; c=relaxed/simple;
 bh=csixwhx9WJc4lMcKa+yQlgUApOQePwU7kdxwIurFgTk=;
 h=Date:From:To:Subject:Message-Id:Mime-Version:DKIM-Signature;
 b=JvjJXE6ZOcFrW3Bh8dhDFSkorpTMaXi/CHDVgWwVhIo1xxGIdMSb7fEqsZuvQjUf356imgjFfuEjC0iymomkQIBPNN6uF6wWA+j7MB5grxmNynCr7558jsdlIOD/h1kUdDC96ZH0BVyZYtKyzkwNtgfNo7RsQoNEGB7NbyNPHLg=
ARC-Authentication-Results: i=1; sourceware.org;
 dkim=pass (2048-bit key, unprotected)
 header.d=nifty.ne.jp header.i=@nifty.ne.jp header.a=rsa-sha256
 header.s=default-1th84yt82rvi header.b=Q1qch23D
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 2FDC24BA2E25
Date: Tue, 9 Jun 2026 08:42:41 +0900
To: cygwin AT cygwin DOT com
Subject: Re: General clipboard issue on cygwin (mintty, putclip, getclip,
 /dev/clipboard)
Message-Id: <20260609084241.b3a53638ca1ddb7311431689@nifty.ne.jp>
In-Reply-To: <26acff9e-bdd8-4b2e-9fbd-c40e03093b3b@towo.net>
References: <20260224103628 DOT fdbd7396311092795834c24f AT nifty DOT ne DOT jp>
 <26acff9e-bdd8-4b2e-9fbd-c40e03093b3b AT towo DOT net>
X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.30; i686-pc-mingw32)
Mime-Version: 1.0
X-BeenThere: cygwin AT cygwin DOT com
X-Mailman-Version: 2.1.30
Precedence: list
List-Id: General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe: <https://cygwin.com/mailman/options/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
List-Archive: <https://cygwin.com/pipermail/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe: <https://cygwin.com/mailman/listinfo/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
From: Takashi Yano via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Errors-To: cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com
Sender: "Cygwin" <cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com>

Hi Thomas,

On Wed, 25 Feb 2026 05:18:34 +0100
Thomas Wolff wrote:
> Hi Takashi,
> 
> Am 24.02.2026 um 02:36 schrieb Takashi Yano:
> > Hi,
> >
> > 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.
> According to Windows docs, OpenClipboard(0) would make SetClipboardData 
> fail. There is no such statement about reading from the clipboard.
> Accordingly, mintty calls OpenClipbard(wnd) before writing to the 
> clipboard and (0) only before pasting. Also I'm not aware pasting ever 
> fails for me. But if there is a chance to fail, I'll add the (wnd) to 
> both other calls.

I confirmed the clipboard issue in mintty has been fixed in
mintty 3.8.3. Thanks!

-- 
Takashi Yano <takashi DOT yano AT nifty DOT ne DOT jp>

-- 
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple