Simulation support:
This function is simulated by a handling routine in the graphics engine.
Description
GreGetGlobalViewingXform queries the global viewing transform matrix. On completion, paXformData points to an array of two-dimensional values that defines the global viewing transform matrix.
This function can be hooked by the presentation driver.
#define INCL_GRE_XFORMS
#include <os2.h>
HDC       hdc;          /*  Device context handle. */
PXFORM    paXformData;  /*  Pointer to return data */
PVOID     pInstance;    /*  Pointer to instance data. */
ULONG     lFunction;    /*  High-order WORD=flags; low-order WORD=NGreGetGlobalViewingXform. */
BOOL      fSuccess;     /*  Return codes. */
fSuccess = GreGetGlobalViewingXform(hdc, paXformData,
             pInstance, lFunction);