pParam2 (PLONG) - input

A pointer to the dispatch tables of the display driver and graphics engine:

pEngHooks

Pointer to the 32-bit entry points of the graphics engine.
pDrvHooks
Pointer to the entry points of the current display driver, which can consist of a table of 16-bit or 32-bit entry points:

typedef struct _CompType {
    USHORT fEngine32Bit;
    USHORT fDriver32Bit;
} COMPTYPE;

typedef struct _P1 {
    ULONG    version;
    COMPTYPE comptype;
} P1;

typedef struct _P2 {
    PLONG pEngTable;
    PLONG pDrvTable;
} P2;

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