## Presentation Device Driver Reference for OS/2

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### GreSelectBitmap - Syntax

Description

GreSelectBitmap selects a bit map into a memory DC or (if called with a NULL bit-map handle) deselects the existing bit map from the DC.

This function is supported by the graphics engine.

    #define INCL_GRE_DEVSUPPORT

    #include <os2.h>

    HDC        hdc;        /*  Device context handle. */

    HBITMAP    hbm;        /*  Bit-map handle. */

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

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

    HBITMAP    rc;         /*  On completion, this function returns an HBITMAP value: */

    rc = GreSelectBitmap(hdc, hbm, pInstance,

           lFunction);