Mysql Database connection problem

[tewari68]

Hi,
Another question, I am using mysql database and on starting a prog I check to see whether the database is available or not, if not available then give some error message otherwise keep the database open and then close it at the end of the prog.
I am making the db connection as follows

conn = mysql_init (NULL);

 if (conn == NULL)
  {
    fprintf (stderr, "mysql_init() failed (probably out of memory)\n");
  }

  if (mysql_real_connect (
        conn,          /* pointer to connection handler */
        m_dbHost.c_str(), /* host to connect to */
        m_dbUser.c_str(), /* user name */
        m_dbPass.c_str(),  /* password */
        m_dbDatabase.c_str(),   /* database to use */
        0,             /* port (use default) */
        NULL,          /* socket (use default) */
        0)             /* flags (none) */
      == NULL)
  {
    fprintf (stderr, "mysql_real_connect() failed:\nError %u (%s)\n",
             mysql_errno (conn), mysql_error (conn));

My question is how can I pass this connection handle to another programme which executes some sql queries, the function I am calling is

// Creating LogMsg object in main()"
       LogMsg logmsg;
logmsg.updateDatabase(m_envelopTo, m_envelopFrom, m_getDateTime, m_Size, m_headerFrom, m_headerTo, m_subject, m_messageID, m_fileName, m_dispositionStr, conn);

this particular function is in logmsg.cpp.
How can I pass the db connection handle to this routine.
Thanks for any help
tewari