Simulation support:

This function is mandatory for display drivers. For other drivers, it is simulated by a handling routine in the graphics engine.

Description:

GreSaveScreenBits saves a rectangle of screen bits.

#define INCL_GRE_BITMAPS
#include <os2.h>

HDC       hdc;        /*  The device context handle. */
PRECTL    prclRect;   /*  A pointer to a screen rectangle defined in screen coordinates. */
PVOID     pInstance;  /*  A pointer to instance data. */
ULONG     lFunction;  /*  High-order WORD=flags; low-order WORD=NGreRestoreScreenBits. */
ULONG     rc;         /*  Return codes. */

rc = GreSaveScreenBits(hdc, prclRect, pInstance,
       lFunction);