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Annotation of mstools/h/dos.h, revision 1.1

1.1     ! root        1: /***
        !             2: *dos.h - definitions for MS-DOS interface routines
        !             3: *
        !             4: *      Copyright (c) 1985-1991, Microsoft Corporation. All rights reserved.
        !             5: *
        !             6: *Purpose:
        !             7: *      Defines the structs and unions used for the direct DOS interface
        !             8: *      routines; includes macros to access the segment and offset
        !             9: *      values of far pointers, so that they may be used by the routines; and
        !            10: *      provides function prototypes for direct DOS interface functions.
        !            11: *
        !            12: ****/
        !            13: 
        !            14: #ifndef _INC_DOS
        !            15: 
        !            16: #ifdef __cplusplus
        !            17: extern "C" {
        !            18: #endif
        !            19: 
        !            20: 
        !            21: #if (_MSC_VER <= 600)
        !            22: #define __cdecl _cdecl
        !            23: #endif
        !            24: 
        !            25: 
        !            26: 
        !            27: /* _getdiskfree structure (duplicated in DIRECT.H) */
        !            28: 
        !            29: #ifndef _DISKFREE_T_DEFINED
        !            30: 
        !            31: struct _diskfree_t {
        !            32:        unsigned total_clusters;
        !            33:        unsigned avail_clusters;
        !            34:        unsigned sectors_per_cluster;
        !            35:        unsigned bytes_per_sector;
        !            36:        };
        !            37: 
        !            38: #define _DISKFREE_T_DEFINED
        !            39: 
        !            40: #endif
        !            41: 
        !            42: 
        !            43: 
        !            44: /* File attribute constants */
        !            45: 
        !            46: #define _A_NORMAL      0x00    /* Normal file - No read/write restrictions */
        !            47: #define _A_RDONLY      0x01    /* Read only file */
        !            48: #define _A_HIDDEN      0x02    /* Hidden file */
        !            49: #define _A_SYSTEM      0x04    /* System file */
        !            50: #define _A_SUBDIR      0x10    /* Subdirectory */
        !            51: #define _A_ARCH        0x20    /* Archive file */
        !            52: 
        !            53: /* external variable declarations */
        !            54: 
        !            55: extern unsigned int _osversion;
        !            56: 
        !            57: extern unsigned int _osmajor;
        !            58: extern unsigned int _osminor;
        !            59: extern unsigned int _baseversion;
        !            60: extern unsigned int _basemajor;
        !            61: extern unsigned int _baseminor;
        !            62: 
        !            63: /* function prototypes */
        !            64: 
        !            65: unsigned _getdiskfree(unsigned, struct _diskfree_t *);
        !            66: 
        !            67: #if !__STDC__
        !            68: /* Non-ANSI name for compatibility */
        !            69: #define diskfree_t  _diskfree_t
        !            70: #endif /* __STDC__ */
        !            71: 
        !            72: /* restore default alignment */
        !            73: 
        !            74: 
        !            75: #ifdef __cplusplus
        !            76: }
        !            77: #endif
        !            78: 
        !            79: #define _INC_DOS
        !            80: #endif /* _INC_DOS */

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