OS2_PM_DRV_ENABLE: SaveDCState requests the presentation driver to save all the information that it has about the device context.

#include <os2.h>

ULONG     ulSubfunction;  /*  07h. */
PULONG    pParam1;
PLONG     pParam2;        /*  Not used. */
LONG      rc;             /*  Return codes. */

rc = SaveDCState(ulSubfunction, pParam1, pParam2);