From: Deepak Chand Rathore (
Date: Thu Jan 22 2004 - 03:10:17 EST

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    hi all,
    i have the following scenario:

    the environment variables will be set using shell encoding
    also the filepaths( that could be passed as command line arg.)
    & in my program, i am using _wgetenv() to get env. var.
    & GetCommandLineW() to get command line
    the shell used by the user could be anything , my program has to take
    care of that
    one problem could be as follows:
    When a character in one code page is unavailable on another and
    conversion occurs, the character is converted to its closest equivalent
    character in the other code page. For example, ASCII 156 (œ) in code
    page 1252 is converted to ASCII 111 (o) in code page 437 because this is
    the most similar character in the code page 437. When you convert this
    ANSI character back to code page 1252, the result is ASCII 111 (o),
    because ASCII 111 (o) exists in both code pages. The original 1252
    character (œ) is lost.
    so i am able to retain its hex value, i will be always on the safer side
    a portion of my prog.
    int main()
    //here i am trying to do some manipulation with
     int argc1;
     wchar_t **argv1 = 0;
     argv1 = CommandLineToArgvW(GetCommandLineW(), &argc1);
     cout << "no. of arg.'s " << argc1;
     for ( int j=0; j < argc1; j++ )
          wcout << L"\n" << argv1[j];
    // here i might open some file
     if( 0 != _wgetenv(L"AM_HOME"))
          wcout << _wgetenv(L"AM_HOME");
          wcout << L"could not read environment variable";

    //here i might have to open the file again

    what additions do i need to do?


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