This method releases a cache presentation space obtained using the WinGetPS, the WinGetScreenPS, or the WinGetClipPS call.

#define INCL_WINWINDOWMGR /* Or use INCL_WIN, INCL_PM, Also in COMMON section */
#include <os2.h>

HPS     hps;  /*  Handle of the cache presentation space to release, as returned by the WinGetPS, the WinGetScreenPS, or the WinGetClipPS function. */
BOOL    rc;   /*  Success indicator. */

rc = WinReleasePS(hps);