From: x1 <caldridge@...>
Date: 2005-09-09T10:09:18+09:00
Subject: Re: Problem with popen on windows

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I second this and have battled it numerous times. Finally, I've just given=
=20
up on it and execute the job with ruby.exe, and let a dos prompt sit there=
=20
ignorantly.

I've been sitting here hopelessly PRAYING that a fix for this will be=20
provided with ruby2.

*waits impatiently.

On 9/8/05, stevetuckner <stevetuckner@usfamily.net> wrote:
>=20
> Kroeger Simon (ext) wrote:
>=20
> >Hi all,
> >
> >i'm using ruby 1.8.2 (2004-12-25) [i386-mswin32] on win2000.
> >
> >When starting my GUI app with rubyw (because i don't like the empty
> >window) there is another window poping up whenever i call popen. (or use
> >backquotes to start another process)
> >
> >Using just ruby.exe all seems fine (except the initial nasty empty
> >window)
> >
> >Someone knows a way around?
> >
> >cheers
> >
> >Simon
> >
> >
> >
> >
> >
> Below was my attempt to say, here is how you should fix this issue. And
> then it didn't work. If I run it with ruby it works fine. When I run it
> with rubyw, it just goes away when I click run. Any ideas anyone? The
> system code and `` code is taken from the list a long time ago.
>=20
> Steve Tuckner
>=20
> ---------------------------------------------
> require "vr/vruby"
> require "vr/vrcontrol"
> require 'Win32API'
>=20
> def system(command)
> Win32API.new("crtdll", "system", ['P'], 'L').Call(command)
> end
>=20
> def `(command)
> popen =3D Win32API.new("crtdll", "_popen", ['P','P'], 'L')
> pclose =3D Win32API.new("crtdll", "_pclose", ['L'], 'L')
> fread =3D Win32API.new("crtdll", "fread", ['P','L','L','L'], 'L')
> feof =3D Win32API.new("crtdll", "feof", ['L'], 'L')
> saved_stdout =3D $stdout.clone
> psBuffer =3D " " * 128
> rBuffer =3D ""
> f =3D popen.Call(command,"r")
> while feof.Call( f )=3D=3D0
> l =3D fread.Call( psBuffer,1,128,f )
> rBuffer +=3D psBuffer[0..l]
> end
> pclose.Call f
> $stdout.reopen(saved_stdout)
> rBuffer
> end
>=20
> class MyForm < VRForm
>=20
> def construct
> addControl VRButton, "run", "run", 0, 0, 150, 40
> move 0, 0, 160, 73
> end
>=20
> def run_clicked
> messageBox(`dir`)
> end
> end
>=20
> VRLocalScreen.showForm MyForm
> VRLocalScreen.messageloop
>=20
>=20
>=20
>

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