Simulation support:

This function is simulated by a handling routine in the graphics engine.

Description

GreRestoreRegion is called during RestoreDC and CloseDC to allow the region handling routines to restore their local data structures. When a DC is closed, GreRestoreRegion is called with a count of 0 to free its local data. The clip region currently selected into the DC is deleted by this function.

This function can be hooked by the presentation driver.

#define INCL_GRE_CLIP
#include <os2.h>

HDC      hdc;        /*  Device context handle. */
LONG     cSave;      /*  DC save level. */
PVOID    pInstance;  /*  Pointer to instance data. */
ULONG    lFunction;  /*  High-order WORD=flags; low-order WORD=NGreRestoreRegion. 
  * /
BOOL       fSuccess ;     / *    Return   codes .   * /

fSuccess   =   GreRestoreRegion ( hdc ,   cSave ,   pInstance ,
               lFunction ) ;