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Date: Wed, 22 Oct 2014 13:34:53 -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: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
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Andrey, the flashing console flashes very quickly and I don't know how to slow it down.
It appears to have no title and no contents.

I gave up on using the bash option -c, because of clashes due to mixing windows and 

linux command line parsing conventions.  So, instead I created a script /d/try:  

  export PATH=/bin
  sleep 10
  date >>/d/out.txt # cygdrive is /

Here are the results of my recent tests:

When I run:  

  D:\cygwin\bin\run.exe /bin/bash --norc /d/try
then there is a flashing console window which closes immediately.  It appears to have no title or
contents but it's hard to tell since it flashes so quickly.  In the process list of Process 

Explorer (from Microsoft's SysInternals), I can see:

  1) conhost.exe "Console Window Host" (nested under csrss.exe "Client Server Runtime Process"))
  2) bash.exe (at the top level)  

  3) sleep.exe (at the top level)

After the expected 10 seconds, the processes disappear and the file /d/out.txt gets written to.

If I run instead:   

  D:\cygwin\bin\bash.exe --norc /d/try
I get an empty console window (which doesn't close immediately), with the same title as my 

shortcut name.  This console window closes after the specified 10 seconds.  In this case, there 

is a slight change in the processes running:

  1) conhost.exe "Console Window Host" (nested under csrss.exe "Client Server Runtime Process"))
  2) bash.exe (running under explorer.exe "Windows Explorer")
  3) sleep.exe (at the top level)


So, definitely, run.exe is *not* preventing the flashing console window as I expected it to.


>________________________________
> From: Andrey Repin <anrdaemon AT yandex DOT ru>
>To: John Wiersba <jrw32982 AT yahoo DOT com>; cygwin AT cygwin DOT com 
>Sent: Wednesday, October 22, 2014 9:36 AM
>Subject: Re: run.exe flashes non-hidden console window in cygwin64 on Win7Pro-64
> 
>
>Greetings, John Wiersba!
>
>
>> I'm trying to use run.exe to avoid a flashing console window, but it is not
>> working on my cygwin64 install on Win7Pro-64.  This is a fresh install from
>> 10/20/2014.  I've attached my cygcheck.out.  I've tried the following
>> windows shortcuts and all cause a console window to briefly flash (in the
>> case of mintty a console window flashes before the mintty terminal is displayed).
>
>>   D:\cygwin\bin\run.exe /bin/bash -c "echo hi"
>>   D:\cygwin\bin\run.exe /bin/env -i PATH=/bin bash --norc -c "echo hi"
>>   D:\cygwin\bin\run.exe /bin/env -i PATH=/bin mintty bash --norc
>
>
>> Since hiding the console window is the main purpose of run.exe, it seems
>> that it is badly broken for Win7Pro-64.
>
>Can you tell, what is that console? I.e. what's in it's header?
>
>
>--
>WBR,
>Andrey Repin (anrdaemon AT yandex DOT ru) 22.10.2014, <17:35>
>
>Sorry for my terrible english...
>
>
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