Simulation support:

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

Description

GreGetViewingLimits loads the array indicated by prclViewingLimits with the boundaries of the viewing window in graphic model-space coordinates. All boundaries are inclusive.

This function can be hooked by the presentation driver.

#define INCL_GRE_XFORMS
#include <os2.h>

HDC       hdc;                /*  Device context handle. */
PRECTL    prclViewingLimits;  /*  Pointer to limits of viewing area (RECTL structure): */
PVOID     pInstance;          /*  Pointer to instance data. */
ULONG     lFunction;          /*  High-order WORD=flags; low-order WORD=NGreGetViewingLimits. */
BOOL      fSuccess;           /*  Return codes. */

fSuccess = GreGetViewingLimits(hdc, prclViewingLimits,
             pInstance, lFunction);