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Date: Wed, 27 Feb 2013 09:22:22 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: GetEnvironmentVariable doesn't work
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On Feb 27 10:54, Алексей Павлов wrote:
> Hi!
> 
> I set some environment variable. When I try to get it with
> GetEnvironmentVariable{A,W} it return empty result. With "getenv" I
> can get variable value. Also I think GetEnvironmentVariable doesn't
> work inside Cygwin.dll (maybe I wrong).
> My example code is:
> 
> #include <stdio.h>
> #include <windows.h>
> 
> int main()
> {
>    char* res = getenv("MYVARIABLE");
>    if (res)
>    {
>       printf("MYVARIABLE (via getenv) is %s\n",res);
>    }
>    char gev_res[256] = {'\0'};
>    GetEnvironmentVariableA("MYVARIABLE",gev_res,256);
>    printf("MYVARIABLE (via GetEnvironmentVariableA) is %s\n",gev_res);
>    return 0;
> }
> 
> Is it a bug of Cygwin feature that I can't use GetEnvironmentVariable?

Cygwin is a POSIX environment.  Use getenv/setenv/putenv.  If you want
to create native (==non-Cygwin) Windows applications and use native
calls, use the mingw64 cross compiler.


Corinna

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

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