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X-HELO: calimero.vinschen.de
Date: Fri, 1 Jul 2016 14:41:24 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Use of spawnvp function makes console window appear.
Message-ID: <20160701124124.GA16421@calimero.vinschen.de>
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References: <65d07c575914c634ad9145d25005223a AT mail DOT kylheku DOT com> <322d75d40a801c815572887971a85781 AT mail DOT kylheku DOT com>
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On Jun 30 20:38, Kaz Kylheku wrote:
> On 29.06.2016 15:28, Kaz Kylheku wrote:
> > Hi all,
> >=20
> > I've encountered a strange behavior. When a Cygwin C application that is
> > compiled with "-mwindows" tries to spawn another program, that
> > application
> > suddenly gets a console window!
>=20
> I tracked this down to the fhandler_console::need_invisible() call in
> child_info_spawn::worker().
>=20
> Whatever that is supposed to do is not working properly because
> the invisible window is perfectly visible.

Try starting the process detached:

  spawnvp(_P_DETACH, argv[0], argv);


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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