2   .RTLink -- REFER Labels
--------------------------------------------------------------------------------

     When creating pre-linked (.PLL) libraries, the following symbols
     can be used to create a basic (.PLL) file:

     Table: REFER Symbols
     -----------------------------------------------------------------
     Symbol         Meaning
     -----------------------------------------------------------------
     _main          Main
     _VOPS          All of the built-in operators
     _VMACRO        Runtime macro compiler
     _VDB           General database handler
     _VDBF          (.dbf) specific handler
     _VDBFNTX       Clipper (.ntx) database specific handler
     _VTERM         Terminal I/O system (? and @...SAY)
     _VPICT         Picture formatting and TRANSFORM()
     _VGETSYS       Get system
     _VDBG          Linkable version of The Clipper Debugger
     -----------------------------------------------------------------

     Note that these symbols are case sensitive.