Writes a string of character-attribute pairs (cells) to the display.
#define INCL_VIO
#include <os2.h>
ULONG CellStr; /* String to be written. */
ULONG Length; /* Length of string. */
ULONG Row; /* Starting row position for output. */
ULONG Column; /* Starting column position for output. */
HVIO VioHandle; /* VIO presentation-space handle. */
APIRET rc; /* Return code. */
rc = VioWrtCellStr(CellStr, Length, Row, Column,
VioHandle);