Description:

OS2_PM_DRV_ENABLE: QueryDeviceSurface provides the needed information to the graphics engine for handling the new Device Driver Interface (DDI) architecture.

#include <os2.h>

ULONG    ulSubfunction;  /*  0Eh. */
PLONG    pParam1;        /*  Pointer to the DEVICESURFACE data structure. */
LONG     pParam2;        /*  Long integer returned from FillPhysicalDeviceBlock. */
LONG     rc;             /*  Return codes. */

rc = QueryDeviceSurface(ulSubfunction, pParam1,
       pParam2);