Creates a VIO presentation space.
#define INCL_VIO
#include <os2.h>
PHVIO phvps; /* Pointer to the presentation-space handle. */
ULONG Rows; /* Number of rows. */
ULONG Columns; /* Number of columns. */
ULONG Format; /* Format of the attributes */
ULONG AttrBytes; /* Number of attribute bytes. */
HVIO hvps; /* Reserved. Must be 0. */
APIRET rc; /* Return code. */
rc = VioCreatePS(phvps, Rows, Columns, Format,
AttrBytes, hvps);