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  CONST
      { max rows option for _SetTextRows and _SetVideoModeRows }
      _MaxTextRows  = -1;
 
  Unit:     MSGraph
 
  Context:  _GetVideoMode, _SetTextRows, _SetVideoModeRows
 
  Description
 
    The _MaxTextRows constant holds the maximum possible number of rows
    of text for the current video mode.
 
    Pass _MaxTextRows to the SetTextRows or _SetVideoModeRows
    procedure to specify the maximum rows for the current mode.
 
    The current number of rows is found in the NumTextRows field in the
    _VideoConfig record filled by the _GetVideoMode procedure.