Simulation support:

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

Description

GreMultiplyXforms multiplies the transform matrix.

This function can be hooked by the presentation driver.

#define INCL_GRE_XFORMS
#include <os2.h>

HDC       hdc;             /*  Device context handle. */
PXFORM    paXform;
PXFORM    paNewXformData;
LONG      lMode;           /*  Specifies how supplied array is used to set matrix: */
PVOID     pInstance;       /*  Pointer to instance data. */
ULONG     lFunction;
BOOL      fSuccess;        /*  Return codes. */

fSuccess = GreMultiplyXforms(hdc, paXform,
             paNewXformData, lMode, pInstance,
             lFunction);