## Presentation Device Driver Reference for OS/2

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### GreSetPageUnits - Syntax

Simulation support:

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

Description

GreSetPageUnits sets the page units controlling the device transform.

This function can be hooked by the presentation driver.

    #define INCL_GRE_XFORMS

    #include <os2.h>

    HDC      hdc;        /*  Device context handle. */

    ULONG    ulUnits;    /*  Page units. */

    LONG     lWidth;     /*  Page width (w). */

    LONG     lHeight;    /*  Page height (h). See previous parameter, IWidth. */

    PVOID    pInstance;  /*  Pointer to instance data. */

    ULONG    lFunction;  /*  High-order WORD=flags; low-order WORD=NGreSetPageUnits. */

    BOOL     rc;         /*  Return codes. */

    rc = GreSetPageUnits(hdc, ulUnits, lWidth,

           lHeight, pInstance, lFunction);