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Tricks of the Windows Gam…ming Gurus (2nd Edition)
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Disc2.iso
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vc98
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crt
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src
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dos.h
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C/C++ Source or Header
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1998-06-17
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139 lines
/***
*dos.h - definitions for MS-DOS interface routines
*
* Copyright (c) 1985-1997, 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 /* _MSC_VER > 1000 */
#ifndef _INC_DOS
#define _INC_DOS
#if !defined (_WIN32) && !defined (_MAC)
#error ERROR: Only Mac or Win32 targets supported!
#endif /* !defined (_WIN32) && !defined (_MAC) */
#ifndef _CRTBLD
/* This version of the header files is NOT for user programs.
* It is intended for use when building the C runtimes ONLY.
* The version intended for public use will not have this message.
*/
#error ERROR: Use of C runtime library internal header file.
#endif /* _CRTBLD */
#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 /* __cplusplus */
#ifndef _INTERNAL_IFSTRIP_
#include <cruntime.h>
#endif /* _INTERNAL_IFSTRIP_ */
/* Define _CRTIMP */
#ifndef _CRTIMP
#ifdef CRTDLL
#define _CRTIMP __declspec(dllexport)
#else /* CRTDLL */
#ifdef _DLL
#define _CRTIMP __declspec(dllimport)
#else /* _DLL */
#define _CRTIMP
#endif /* _DLL */
#endif /* CRTDLL */
#endif /* _CRTIMP */
/* Define __cdecl for non-Microsoft compilers */
#if (!defined (_MSC_VER) && !defined (__cdecl))
#define __cdecl
#endif /* (!defined (_MSC_VER) && !defined (__cdecl)) */
/* Define _CRTAPI1 (for compatibility with the NT SDK) */
#ifndef _CRTAPI1
#if _MSC_VER >= 800 && _M_IX86 >= 300
#define _CRTAPI1 __cdecl
#else /* _MSC_VER >= 800 && _M_IX86 >= 300 */
#define _CRTAPI1
#endif /* _MSC_VER >= 800 && _M_IX86 >= 300 */
#endif /* _CRTAPI1 */
#ifndef _MAC
#ifndef _WCHAR_T_DEFINED
typedef unsigned short wchar_t;
#define _WCHAR_T_DEFINED
#endif /* _WCHAR_T_DEFINED */
#endif /* _MAC */
#ifndef _MAC
#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 /* _DISKFREE_T_DEFINED */
#endif /* _MAC */
/* 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 */
#ifndef _MAC
/* Function prototypes */
_CRTIMP unsigned __cdecl _getdiskfree(unsigned, struct _diskfree_t *);
#endif /* _MAC */
#ifdef _M_IX86
void __cdecl _disable(void);
void __cdecl _enable(void);
#endif /* _M_IX86 */
#ifndef _MAC
#if !__STDC__
/* Non-ANSI name for compatibility */
#define diskfree_t _diskfree_t
#endif /* !__STDC__ */
#endif /* _MAC */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#ifdef _MSC_VER
#pragma pack(pop)
#endif /* _MSC_VER */
#endif /* _INC_DOS */