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//0x28 bytes (sizeof)
struct _INBV_DISPLAY_CONTEXT
{
    UCHAR FrameBufferValid;                                                 //0x0
    UCHAR FrameBufferMapped;                                                //0x1
    UCHAR DisplayRotation;                                                  //0x2
    struct _INBV_MODE_INFORMATION ModeInformation;                          //0x4
    VOID* ShadowBuffer;                                                     //0x18
    union
    {
        VOID* FrameBuffer;                                                  //0x20
        LONG (*BltRoutine)(struct _INBV_GRAPHICS_RECTANGLE* arg1, struct _INBV_OFFSET* arg2, UCHAR arg3); //0x20
    } VideoMemory;                                                          //0x20
};