BITMAPV4HEADER  6B9P4J 

The BITMAPV4HEADER structure contains information about a Win32 version 4.0 bitmap.

typedef struct { 
    DWORD        bV4Size;
    LONG         bV4Width;
    LONG         bV4Height;
    WORD         bV4Planes;
    WORD         bV4BitCount;
    DWORD        bV4V4Compression;
    DWORD        bV4SizeImage;
    LONG         bV4XPelsPerMeter;
    LONG         bV4YPelsPerMeter;
    DWORD        bV4ClrUsed;
    DWORD        bV4ClrImportant;
    DWORD        bV4RedMask;
    DWORD        bV4GreenMask;
    DWORD        bV4BlueMask;
    DWORD        bV4AlphaMask;
    DWORD        bV4CSType;
    CIEXYZTRIPLE bV4Endpoints;
    DWORD        bV4GammaRed;
    DWORD        bV4GammaGreen;
    DWORD        bV4GammaBlue;
} BITMAPV4HEADER, FAR *LPBITMAPV4HEADER, *PBITMAPV4HEADER;