Simulation support:

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

Description:

GreScrollRect scrolls the contents of the LVB through the DC.

#define INCL_AVIOP
#include <os2.h>

HDC                       hdc;           /*  The device context handle. */
VioPresentationSpace     *pVioPS;        /*  A pointer to the Vio presentation space. */
LPScrollRectRef           paScrollRect;
PVOID                     pInstance;     /*  A pointer to instance data. */
ULONG                     lFunction;     /*  High-order WORD=flags; low-order WORD=NGreScrollRect. */
LONG                      rc;            /*  Return codes. */

rc = GreScrollRect(hdc, pVioPS, paScrollRect,
       pInstance, lFunction);