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281 lines
8.4 KiB
281 lines
8.4 KiB
#define FF_CAPMASK 0x00FF
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#define FF_SAVED 0x0100
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#define FF_MAKESYS 0x0200
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#define FF_QUICK 0x0400
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#define FF_HIGHCAP 0x0800
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#define FF_ONLYONE 0x1000
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#define MS_720 0
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#define MS_144 4
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#define MS_288 6
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#define SS48 2 // indexs into bpbList[] and cCluster[]
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#define DS48 3
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#define DS96 4
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#define DS720KB 5
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#define DS144M 6
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#define DS288M 7
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#define FAT_READ 1
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#define FAT_WRITE 2
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#define BOOTSECSIZE 512
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/* FormatTrackHead() Error Codes */
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#define DATAERROR 0x1000
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#define ADDMARKNOTFOUND 0x0200
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#define SECTORNOTFOUND 0x0400
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#define IOCTL_FORMAT 0x42
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#define IOCTL_SETFLAG 0x47
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#define IOCTL_MEDIASSENSE 0x68
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#define IOCTL_GET_DPB 0x60
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#define IOCTL_SET_DPB 0x40
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#define IOCTL_READ 0x61
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#define IOCTL_WRITE 0x41
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/* Media descriptor values for different floppy drives */
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// NOTE: these are not all unique!
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#define MEDIA_160 0xFE /* 160KB */
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#define MEDIA_320 0xFF /* 320KB */
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#define MEDIA_180 0xFC /* 180KB */
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#define MEDIA_360 0xFD /* 360KB */
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#define MEDIA_1200 0xF9 /* 1.2MB */
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#define MEDIA_720 0xF9 /* 720KB */
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#define MEDIA_1440 0xF0 /* 1.44M */
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#define MEDIA_2880 0xF0 /* 2.88M */
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#define DOS_320 0x314 /* DOS version # 3.20 */
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#define DRIVEID(path) ((path[0] - 'A')&31)
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/* IOCTL_Functions() error codes */
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#define NOERROR 0
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#define SECNOTFOUND 0x1B
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#define CRCERROR 0x17
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#define GENERALERROR 0x1F
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/*--------------------------------------------------------------------------*/
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/* BIOS Parameter Block Structure - */
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/*--------------------------------------------------------------------------*/
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typedef struct tagBPB
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{
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WORD cbSec; /* Bytes per sector */
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BYTE secPerClus; /* Sectors per cluster */
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WORD cSecRes; /* Reserved sectors */
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BYTE cFAT; /* FATS */
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WORD cDir; /* Root Directory Entries */
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WORD cSec; /* Total number of sectors in image */
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BYTE bMedia; /* Media descriptor */
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WORD secPerFAT; /* Sectors per FAT */
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WORD secPerTrack; /* Sectors per track */
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WORD cHead; /* Heads */
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WORD cSecHidden; /* Hidden sectors */
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} BPB;
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typedef BPB *PBPB;
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typedef BPB FAR *LPBPB;
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/*--------------------------------------------------------------------------*/
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/* Drive Parameter Block Structure - */
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/*--------------------------------------------------------------------------*/
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typedef struct tagDPB
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{
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BYTE drive;
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BYTE unit;
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WORD sector_size;
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BYTE cluster_mask;
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BYTE cluster_shift;
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WORD first_FAT;
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BYTE FAT_count;
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WORD root_entries;
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WORD first_sector;
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WORD max_cluster;
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BYTE FAT_size;
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WORD dir_sector;
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LONG reserved1;
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BYTE media;
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BYTE first_access;
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BYTE reserved2[4];
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WORD next_free;
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WORD free_cnt;
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BYTE DOS4_Extra; /* FAT_size field is a WORD in DOS 4.X.
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* To compensate for it, we have one extra byte
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*/
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} DPB;
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typedef DPB *PDPB;
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typedef DPB FAR *LPDPB;
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#define MAX_SEC_PER_TRACK 40
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/*--------------------------------------------------------------------------*/
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/* Device Parameter Block Structure - */
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/*--------------------------------------------------------------------------*/
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typedef struct tagDevPB
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{
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CHAR SplFunctions;
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CHAR devType;
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CHAR reserved1[2];
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INT NumCyls;
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CHAR bMediaType; /* 0=>1.2MB and 1=>360KB */
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BPB BPB;
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CHAR reserved3[MAX_SEC_PER_TRACK * 4 + 2];
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} DevPB, NEAR *PDevPB, FAR *LPDevPB;
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#define TRACKLAYOUT_OFFSET (7+31) /* Offset of tracklayout
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* in a Device Parameter Block */
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/*--------------------------------------------------------------------------*/
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/* Disk Base Table Structure - */
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/*--------------------------------------------------------------------------*/
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typedef struct tagDBT
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{
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CHAR SRHU;
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CHAR HLDMA;
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CHAR wait;
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CHAR bytespersec;
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CHAR lastsector;
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CHAR gaplengthrw;
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CHAR datalength;
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CHAR gaplengthf;
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CHAR datavalue;
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CHAR HeadSettle;
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CHAR MotorStart;
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} DBT;
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typedef DBT *PDBT;
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typedef DBT FAR *LPDBT;
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/*--------------------------------------------------------------------------*/
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/* Directory Entry Structure - */
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/*--------------------------------------------------------------------------*/
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typedef struct tagDIRTYPE
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{
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CHAR name[11];
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BYTE attr;
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CHAR pad[10];
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WORD time;
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WORD date;
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WORD first;
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LONG size;
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} DIRTYPE;
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typedef DIRTYPE FAR *LPDIRTYPE;
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/*--------------------------------------------------------------------------*/
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/* MS-DOS Boot Sector Structure - */
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/*--------------------------------------------------------------------------*/
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typedef struct tagBOOTSEC
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{
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BYTE jump[3]; /* 3 byte jump */
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CHAR label[8]; /* OEM name and version */
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BPB BPB; /* BPB */
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BYTE bootdrive; /* INT 13h indicator for boot device */
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BYTE dontcare[BOOTSECSIZE-12-3-sizeof(BPB)];
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BYTE phydrv;
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WORD signature;
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} BOOTSEC;
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/*--------------------------------------------------------------------------*/
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/* Disk Information Structure - */
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/*--------------------------------------------------------------------------*/
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typedef struct tagDISKINFO
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{
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WORD wDrive;
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WORD wCylinderSize;
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WORD wLastCylinder;
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WORD wHeads;
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WORD wSectorsPerTrack;
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WORD wSectorSize;
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} DISKINFO;
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typedef DISKINFO *PDISKINFO;
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typedef DISKINFO FAR *LPDISKINFO;
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/*--------------------------------------------------------------------------*/
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/* DOS Disk Transfer Area Structure - */
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/*--------------------------------------------------------------------------*/
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typedef struct tagDOSDTA
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{
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BYTE Reserved[21]; /* 21 */
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BYTE Attrib; /* 22 */
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WORD Time; /* 24 */
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WORD Date; /* 26 */
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DWORD Length; /* 30 */
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CHAR szName[MAXDOSFILENAMELEN]; /* 43 */
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CHAR dummy[1]; /* 44 */
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// we do WORD move of 22 words so pad this out by 1 byte
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} DOSDTA;
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typedef DOSDTA *PDOSDTA;
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typedef DOSDTA FAR *LPDOSDTA;
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// this is the structure used to store file information in the
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// directory window. these are variable length blocks. the
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// first entry is a dummy that holds the number of entries in
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// the whole block in the Length field. use the wSize field
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// to give you a pointer to the next block
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typedef struct tagMYDTA
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{
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WORD wSize; // size of this structure (cFileName is variable)
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SHORT iBitmap;
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INT nIndex;
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DWORD my_dwAttrs; // must match WIN32_FIND_DATA from here down!
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FILETIME my_ftCreationTime;
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FILETIME my_ftLastAccessTime;
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FILETIME my_ftLastWriteTime;
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DWORD my_nFileSizeHigh;
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DWORD my_nFileSizeLow;
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CHAR my_cFileName[];
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} MYDTA;
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typedef MYDTA *PMYDTA;
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typedef MYDTA FAR *LPMYDTA;
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#define IMPORTANT_DTA_SIZE \
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(sizeof(MYDTA) - \
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sizeof(INT) - \
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sizeof(WORD) - \
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sizeof(SHORT))
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#define GETDTAPTR(lpStart, offset) ((LPMYDTA)((LPSTR)lpStart + offset))
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// stuff used by the search window
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typedef struct tagDTASEARCH {
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DWORD sch_dwAttrs; // must match WIN32_FIND_DATA
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FILETIME sch_ftCreationTime;
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FILETIME sch_ftLastAccessTime;
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FILETIME sch_ftLastWriteTime;
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DWORD sch_nFileSizeHigh;
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DWORD sch_nFileSizeLow;
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} DTASEARCH, FAR *LPDTASEARCH;
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/*--------------------------------------------------------------------------*/
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/* DOS Extended File Control Block Structure - */
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/*--------------------------------------------------------------------------*/
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typedef struct tagEFCB
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{
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BYTE Flag;
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BYTE Reserve1[5];
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BYTE Attrib;
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BYTE Drive;
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BYTE Filename[11];
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BYTE Reserve2[5];
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BYTE NewName[11];
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BYTE Reserve3[9];
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} EFCB;
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