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  Arguments
 
    mode       Video mode to be set
 
    rows       Number of rows available for text modes
 
  Returns
 
    Integer    The number of rows actually set, which may differ from
               the number requested. If an error occurs (for example, if
               the mode is not supported), the function returns 0.
 
  Description
 
    The _SetVideoModeRows function selects a screen mode for a
    particular hardware/display combination. See the _SetVideoMode
    help entry for more detail about modes. See the _SetTextRows
    entry for more details about text rows.
 
  _GrStatus Returns
 
    _GrError, _GrInvalidParameter, _GrModeNotSupported