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_bios_printer Constants
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─────Run-Time Library───────────────────────────────────────────────────────
 
  Constant:  _PRINTER_WRITE, _PRINTER_INIT, _PRINTER_STATUS
 
  Include:   <bios.h>
 
  Context:   _bios_printer
 
  Summary:   The <service> argument specifies the printer service
             requested.
 
     The <service> argument can be any of the following manifest
     constants:
 
     Constant            Meaning
 
     _PRINTER_INIT       Initializes the selected printer. The <data>
                         argument is ignored.
 
     _PRINTER_STATUS     Returns the printer status. The <data> argument
                         is ignored.
 
     _PRINTER_WRITE      Sends the low-order byte of <data> to the
                         printer specified by <printer>.
                                    -♦-