Sets the size of the current character cell in pels.

#define INCL_VIO
#include <os2.h>

ULONG     Height;  /*  The height of the character cell in pels. */
ULONG     Width;   /*  The width of the character cell in pels. */
HVIO      hvps;    /*  VIO presentation-space handle. */
APIRET    rc;      /*  Return code. */

rc = VioSetDeviceCellSize(Height, Width, hvps);