windows-nt/Source/XPSP1/NT/base/crts/libw32/inc64/dos.h

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2020-09-26 03:20:57 -05:00
/***
*dos.h - definitions for MS-DOS interface routines
*
* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
*
*Purpose:
* Defines the structs and unions used for the direct DOS interface
* routines; includes macros to access the segment and offset
* values of far pointers, so that they may be used by the routines; and
* provides function prototypes for direct DOS interface functions.
*
* [Public]
*
****/
#if _MSC_VER > 1000
#pragma once
#endif
#ifndef _INC_DOS
#define _INC_DOS
#if !defined(_WIN32)
#error ERROR: Only Win32 target supported!
#endif
#ifdef _MSC_VER
/*
* Currently, all MS C compilers for Win32 platforms default to 8 byte
* alignment.
*/
#pragma pack(push,8)
#endif /* _MSC_VER */
#ifdef __cplusplus
extern "C" {
#endif
/* Define _CRTIMP */
#ifndef _CRTIMP
#ifdef _DLL
#define _CRTIMP __declspec(dllimport)
#else /* ndef _DLL */
#define _CRTIMP
#endif /* _DLL */
#endif /* _CRTIMP */
/* Define __cdecl for non-Microsoft compilers */
#if ( !defined(_MSC_VER) && !defined(__cdecl) )
#define __cdecl
#endif
#ifndef _WCHAR_T_DEFINED
typedef unsigned short wchar_t;
#define _WCHAR_T_DEFINED
#endif
#ifndef _DISKFREE_T_DEFINED
/* _getdiskfree structure (duplicated in DIRECT.H) */
struct _diskfree_t {
unsigned total_clusters;
unsigned avail_clusters;
unsigned sectors_per_cluster;
unsigned bytes_per_sector;
};
#define _DISKFREE_T_DEFINED
#endif
/* File attribute constants */
#define _A_NORMAL 0x00 /* Normal file - No read/write restrictions */
#define _A_RDONLY 0x01 /* Read only file */
#define _A_HIDDEN 0x02 /* Hidden file */
#define _A_SYSTEM 0x04 /* System file */
#define _A_SUBDIR 0x10 /* Subdirectory */
#define _A_ARCH 0x20 /* Archive file */
/* Function prototypes */
_CRTIMP unsigned __cdecl _getdiskfree(unsigned, struct _diskfree_t *);
#ifdef _M_IX86
void __cdecl _disable(void);
void __cdecl _enable(void);
#endif /* _M_IX86 */
#if !__STDC__
/* Non-ANSI name for compatibility */
#define diskfree_t _diskfree_t
#endif /* __STDC__ */
#ifdef __cplusplus
}
#endif
#ifdef _MSC_VER
#pragma pack(pop)
#endif /* _MSC_VER */
#endif /* _INC_DOS */