X-Recipient:	archive-cygwin AT delorie DOT com
DomainKey-Signature:	a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:references:message-id:date:from:reply-to
	:subject:to:in-reply-to:mime-version:content-type; q=dns; s=
	default; b=U954MNtJ04hP0BlpIZg/ZEwp45Bxv6p4cZFmfujSL5jeVo6yx4gLt
	vPIJ2u4+tdHVsDg+4tAQKwdc10dsTv/94J+VGSs35mUIvOXNtVi3/95mGQ/gagUX
	M0l8Qn52yO1OHlcPJz7mNIm+gfcI361gsakbuC4Sxv2SmYhw8605Sk=
DKIM-Signature:	v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:references:message-id:date:from:reply-to
	:subject:to:in-reply-to:mime-version:content-type; s=default;
	bh=9OVQ1DktUGsYJ6l2qgK+dix/cgo=; b=y1zK1vBAISQPQrVOyIYUZTWplG9o
	P6xOQD4AdIVpz/6vKz1PpyAzQ7syYjTD6U7Jbnlvv8a6goVVcaGTIIx2Wqcipp24
	l/JhNrcqFyvntmM2koESXEr4hyObJZ7PedFffJlwc/UYSKa5o9pbUadQ6w4w9GrV
	HpB4X4uO+rcfY48=
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Authentication-Results:	sourceware.org; auth=none
X-Virus-Found:	No
X-Spam-SWARE-Status:	No, score=1.0 required=5.0 tests=AWL,BAYES_20,FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM,FREEMAIL_REPLYTO_END_DIGIT,RCVD_IN_DNSWL_NONE,RP_MATCHES_RCVD,SPF_PASS autolearn=ham version=3.3.2
X-HELO:	nm48-vm2.bullet.mail.gq1.yahoo.com
References:	<1413488630 DOT 82429 DOT YahooMailNeo AT web162806 DOT mail DOT bf1 DOT yahoo DOT com> <544055FF DOT 2030604 AT cs DOT umass DOT edu> <1413517183 DOT 86611 DOT YahooMailNeo AT web162801 DOT mail DOT bf1 DOT yahoo DOT com> <1413517863 DOT 36122 DOT YahooMailNeo AT web162806 DOT mail DOT bf1 DOT yahoo DOT com> <54411638 DOT 2000104 AT cs DOT umass DOT edu> <1413910316 DOT 59036 DOT YahooMailNeo AT web162803 DOT mail DOT bf1 DOT yahoo DOT com> <1245475041 DOT 20141022173600 AT yandex DOT ru> <1414010093 DOT 92003 DOT YahooMailNeo AT web162802 DOT mail DOT bf1 DOT yahoo DOT com> <CAJ1FpuM=aDE0tAPb5Ez_TwW87j8ypBWp_RncETFaDQdNYLYYzA AT mail DOT gmail DOT com> <1606505198 DOT 20141023052833 AT yandex DOT ru> <1414037878 DOT 2285 DOT YahooMailNeo AT web162805 DOT mail DOT bf1 DOT yahoo DOT com> <1414067059 DOT 70749 DOT YahooMailNeo AT web162802 DOT mail DOT bf1 DOT yahoo DOT com> <CAJ1FpuMzZ6_KJqZVFjvW0gnXHXmvvWFzy6D0MSo9ZaS0mXsT8Q AT mail DOT gmail DOT com>
Message-ID:	<1414091548.99397.YahooMailNeo@web162806.mail.bf1.yahoo.com>
Date:	Thu, 23 Oct 2014 12:12:28 -0700
From:	John Wiersba <jrw32982 AT yahoo DOT com>
Reply-To:	John Wiersba <jrw32982 AT yahoo DOT com>
Subject:	Re: run.exe flashes non-hidden console window in cygwin64 on Win7Pro-64
To:	Doug Henderson <djndnbvg AT gmail DOT com>,
	"cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
In-Reply-To:	<CAJ1FpuMzZ6_KJqZVFjvW0gnXHXmvvWFzy6D0MSo9ZaS0mXsT8Q@mail.gmail.com>
MIME-Version:	1.0
X-IsSubscribed:	yes

Thanks, Doug.  

I use cygstart.exe to start windows programs (such as winword or notepad) from 

a mintty/bash console in a way that allows the mintty console to be closed 

while the windows application is still active.


I thought run.exe was meant to be used from shortcuts to run cygwin programs 

without flashing a console window on the desktop.  I don't think it's needed
to start programs from a mintty console.


>________________________________
> From: Doug Henderson <djndnbvg AT gmail DOT com>
>To: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com> 
>Sent: Thursday, October 23, 2014 2:34 PM
>Subject: Re: run.exe flashes non-hidden console window in cygwin64 on Win7Pro-64
> 
>
>On 23 October 2014 06:24, John Wiersba > wrote:
>> Maybe I'm confused.  Isn't the purpose of run.exe to start a
>> cygwin program without creating a (visible) console window?
>> I can just start a cygwin program directly without the indirection of
>> run.exe if I don't care about the random flashing console window.
>>
>> From the run.exe manpage:
>>   run will do this for you.  It works as intermediate and starts a program 

>>   but makes the console window hidden.
>
>AFAIK, all programs that run in Windows need a window handle in order
>to receive events, and to pass to a lot of windows functions. If your
>program create a windows before it tries to do anything that requires
>a window, that window gets used. When your program does not create its
>own windows, the start up code tries to attach you to an existing
>console window, and if there is not one, it creates it.
>
>A Windows GUI program starts at winmain(). This entry point does not
>have the same requirements as the C standard main() entry point.
>Mainly, you do not have the stdin, stdout, and stderr attached to
>anything, and you do not have a window. Creating a console or GUI
>window is entirely up to your code.
>
>Normally, any non-GUI program will attach to the console window where
>it starts. A "dos" type program will attach to the window running the
>cmd.exe that started it, and a cygwin program will get attached to the
>mintty console window to which your shell is attached,
>
>For both types of non-GUI programs, the msvcrt.dll or cygwin1.dll
>runtime code will setup stdin, stdout and stderr before entering
>main(). The runtime startup code will create a console window for you
>if you did not inherit one from your parent process, and the code will
>attach those file pointers to the console window
>
>In any system: Windows, cygwin, linux, or whatever, to create a
>windowless process, you close those initial file pointers or file
>handles and fork a new process. In the original process, you close
>your window if necessary, you call exit(), and the runtime will close
>your window if necessary. In the new process, you do what ever you
>want.
>
>When you have a cmd.exe window, you use "start" to fire off a new
>program and control what happens to its window with command line
>options.
>When you have a shell in a cygwin console, you use "run.exe" at the
>shell prompt.
>When you use a shortcut, you have not initial window, so the
>msvcrt.dll runtime creates one for you, and uses the properties of the
>shortcut to control how that window is created.
>
>At the shell prompt, try the following commands:
>
>$ /cygdrive/c/windows/system32/notepad.exe
>
>$ /cygdrive/c/windows/system32/notepad.exe &
>
>$ run /cygdrive/c/windows/system32/notepad.exe
>
>$ run /cygdrive/c/windows/system32/notepad.exe &
>
>use ps to check how the notepad process is connected to cygwin. Try
>exiting the shell after the second command to see why you want to use
>run.
>
>Anyway, that's how I think things work. But I may be wrong. It may
>give you some ideas on where to look for more correct and/or detailed
>answers.

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

- Raw text -