## Graphics Adapter Device Driver Reference

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### VHMap - Syntax

Description:

VHMap aliases process memory to a global ring 0 context.

    #include <GRADD.h>

    PVOID    pAddress;  /*  Address within the first page of code or data. */

    ULONG    ulLength;  /*  Size of code or data segment. */

    ULONG    rc;        /*  Return value. */

    rc = VHMap(pAddress, ulLength);