## Presentation Device Driver Reference for OS/2

[prev][next][parent][TOC]

### GreSaveDC - Syntax

Description

GreSaveDC saves the device context's state on a stack and returns an identifier to allow for its subsequent restoration.

This function is supported by the graphics engine.

    #define INCL_GRE_DCS

    #include <os2.h>

    HDC      hdc;        /*  Device context handle. */

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

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

    LONG     rc;         /*  Return codes. */

    rc = GreSaveDC(hdc, pInstance, lFunction);