Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
If it helps, this is how I have changed the PATH env. var. using some other weird obscure language (OK, C++). Sorry it is not in Perl, I hope this is enough for you to get the gist:
#define ENVNAME "Path" #define MAXLEN 1024 static void UpdatePath (char *szDir) { char szPath [MAXLEN]={0}; DWORD dwReturnValue; // Get previous value if ( !GetEnvironmentVariable (ENVNAME, szPath, MAX_PATH) ) ReportError ("GetEnvironmentVariable", GetLastError()); // Update path strcat (szPath, ";"); strcat (szPath, szDir); // On W2K we need OSVERSIONINFOEX OSVERSIONINFO OsVer; OsVer.dwOSVersionInfoSize = sizeof (OsVer); GetVersionEx (&OsVer); if ( OsVer.dwPlatformId == VER_PLATFORM_WIN32_NT ) { // Write to the user environment variables - // only exists on WNT/W2K! HKEY hEnv; dwReturnValue = RegOpenKeyEx (HKEY_CURRENT_USER, "Environment", 0, KEY_SET_VALUE, &hEnv) ; if ( dwReturnValue != ERROR_SUCCESS ) ReportError ("RegOpenKeyEx", dwReturnValue); dwReturnValue = RegSetValueEx (hEnv, ENVNAME, 0, REG_SZ, (BYTE*)szPath, strlen(szPath)+1); if ( dwReturnValue != ERROR_SUCCESS ) ReportError ("RegSetValueEx", dwReturnValue); RegFlushKey (hEnv); if ( hEnv ) RegCloseKey(hEnv); } // Tell the rest of the world (cmd line) if ( !SendMessageTimeout(HWND_BROADCAST, WM_SETTINGCHANGE, 0, (LPARAM) "Environment", SMTO_ABORTIFHUNG, 5000, &dwReturnValue) ) { ReportError ("SendMessageTimeout", GetLastError()); } // Tell our children if ( !SetEnvironmentVariable (ENVNAME, szPath) ) ReportError ("SetEnvironmentVariable", GetLastError()); } // UpdEnv

In reply to Re^2: Changing parent process environment variable by cdarke
in thread Changing parent process environment variable by tcf22

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or How to display code and escape characters are good places to start.
Log In?

What's my password?
Create A New User
Domain Nodelet?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others lurking in the Monastery: (7)
As of 2023-02-01 12:37 GMT
Find Nodes?
    Voting Booth?
    I prefer not to run the latest version of Perl because:

    Results (1 votes). Check out past polls.