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Annotation of ntddk/src/print/lib/fontfile.h, revision 1.1

1.1     ! root        1: /*********************** MODULE HEADER ************************************
        !             2:  * fontfile.h
        !             3:  *      Definitions used in the font file.  This is the file which holds
        !             4:  *      information about cartridge and download fonts.  The file format
        !             5:  *      is quite basic:  a header for verification; then an array of
        !             6:  *      records,  each with a header.  These records contain FONTMAP
        !             7:  *      information.  Cartridges have an array of these, one for each
        !             8:  *      font.  Finally,  the tail of the file contains extra data, as
        !             9:  *      required.  For download fonts,  this would be the download data.
        !            10:  *
        !            11:  *  Copyright (C) 1992  Microsoft Corporation
        !            12:  *
        !            13:  ***************************************************************************/
        !            14: 
        !            15: /*
        !            16:  *   The file header.   One of these is located at the beginning of the file.
        !            17:  *  The ulVarData field is relative to the beginning of the file.  This
        !            18:  *  makes it easier to regenerate the file when fonts are deleted.
        !            19:  */
        !            20: 
        !            21: typedef  struct
        !            22: {
        !            23:     ULONG   ulID;               /* ID info - see value below */
        !            24:     ULONG   ulVersion;          /* Version information - see below */
        !            25:     ULONG   ulFixData;          /* Start of FF_REC_HEADER array */
        !            26:     ULONG   ulFixSize;          /* Number of bytes in fixed section */
        !            27:     ULONG   ulRecCount;         /* Number of records in fixed part */
        !            28:     ULONG   ulVarData;          /* Start of variable data, rel to 0 */
        !            29:     ULONG   ulVarSize;          /* Numbier of bytes in variable portion */
        !            30: }  FF_HEADER;
        !            31: 
        !            32: /*
        !            33:  *   Values for the ID and Version fields.
        !            34:  */
        !            35: 
        !            36: #define FF_ID           0x6c666e66              /* "fnfl" - fOnTfIlE */
        !            37: #define FF_VERSION      1                       /* Start at the bottom */
        !            38: 
        !            39: /*
        !            40:  *   Each entry in the file starts with the following header.  Typically
        !            41:  * there will be one of these for a softfont, and one per cartridge.
        !            42:  * In the case of a cartridge,  there will be an array of these, within
        !            43:  * the master entry.  Each sub-entry will be for one specific font.
        !            44:  *
        !            45:  *   Note that there is a dummy entry at the end.  This contains a 0
        !            46:  * in the ulSize field - it is to mark the last one,  and makes it
        !            47:  * easier to manipulate the file.
        !            48:  */
        !            49: 
        !            50: typedef  struct
        !            51: {
        !            52:     ULONG   ulRID;              /* Record ID */
        !            53:     ULONG   ulNextOff;          /* Offset from here to next record: 0 == end */
        !            54:     ULONG   ulSize;             /* Bytes in this record */
        !            55:     ULONG   ulVarOff;           /* Offset from start of variable data */
        !            56:     ULONG   ulVarSize;          /* Number of bytes in variable part */
        !            57: }  FF_REC_HEADER;
        !            58: 
        !            59: #define FR_ID           0x63657266              /* "frec" - fONT recORD */
        !            60: 
        !            61: /*
        !            62:  *   Define the file extensions used.  The first is the name of the
        !            63:  * font installer file;  the others are temporaries used during update
        !            64:  * of the (possibly) existing file.
        !            65:  */
        !            66: 
        !            67: 
        !            68: #define  FILE_FONTS     L"fi_"           /* "Existing" single file */
        !            69: #define  TFILE_FIX      L"fiX"           /* Fixed part of file */
        !            70: #define  TFILE_VAR      L"fiV"           /* Variable (optional) portion */

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