## Presentation Device Driver Reference for OS/2

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### GreDeath - Syntax

Simulation support:

This function is mandatory for display drivers. For other drivers, it is simulated by a handling routine in the graphics engine.

Description:

GreDeath informs the presentation driver that the entire screen is required by another screen group (an application that is not running under the Presentation Manager interface).

    #define INCL_GRE_DEVMISC3

    #include <os2.h>

    HDC      hdc;        /*  The device context handle. */

    PVOID    pInstance;  /*  A pointer to instance data. */

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

    BOOL     fSuccess;   /*  Return codes. */

    fSuccess = GreDeath(hdc, pInstance, lFunction);