Outputs a page header to a text file
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 Syntax

        GT_PageFHeader( cRepName, lPageReset, nLeftMgn, nRightMgn, ;
                        nPageWidth , nHeader , nHandle , cSystemName , ;
                        cUserName )

 Arguments:

      cRepName    - Report name
      lPageReset  - If .T., reset the page number count
      nLeftMgn    - Left margin of page
      nRightMgn   - Right margin of page
      nPageWidth  - Width of page
      nHeader     - Row on which to start header
      nHandle     - Handle for binary file
      cSystemName - Name of system
      cUserName   - Name of user

 Returns:

      NIL

 Description:

      Output a page header consisting of the System Name , Report Name ,
      User Name , Date and Time to a file

 Examples:



 Header File: GT_LIB.CH

 Source: FHEADER.PRG

 Author:  Martin Colloby