To save variables to a .mem file
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 Syntax

        GT_MemSave(<cFile>,<cFilter>,[<nSeconds>],<nPause>]) => lSuccess

 Arguments:

      <cFile> is the name, including path and extention,
      of the file to save to.

      <cFilter> is the specification of the variables to
      save.

      <nSeconds> is the time to wait.

      <nPause> is the time interval between attempts.

 Returns:

      .T. / .F.

 Description:

      To save variables to a .mem file

 Examples:

      IF .NOT. GT_MemSave('System.mem','p*')
          ? 'Error'
      ENDIF

 Source: GT_MEMSA.PRG

 Author:  Martin Bryant