From: Nathaniel Talbott <nathaniel@...>
Date: 2004-11-18T00:47:55+09:00
Subject: Re: Detecting rubyw

On Nov 17, 2004, at 10:39, nobu.nokada@softhome.net wrote:

> Nathaniel Talbott wrote in [ruby-talk:120639]:
>>>> Is there any way (on Windows) to detect if a script is running under
>>>> rubyw.exe, i.e. headless?
>>>
>>> Can you open "CONIN$" and "CONOUT$" device files?
>>
>> I don't know... how would I do that? I don't think I've ever opened a
>> device file on Windows.
>
> Just open as well as ordinary files.
>
>   begin
>     open("CONIN$") {}
>     open("CONOUT$", "w") {}
>     have_console = true
>   rescue SystemCallError
>     have_console = false
>   end

Excellent! Works great. Thanks a ton, Nobu.


Nathaniel
Terralien, Inc.

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