/*
 *	M A P I W I N . H
 *
 *	Definitions used by the MAPI Development Team to aid in
 *	developing single-source service providers that run on
 *	both WIN32 and WIN16 platforms.
 *	There are three sections.
 *
 *	The first section defines how to call something that
 *	is available by different methods in WIN16 vs. WIN32.
 *	As such, they are totally new mechanisms.
 *
 *	The second section establishes things that are available
 *	AS-IS in one environment but we have to define for the
 *	other environment.
 *
 *	The third section simply defines a few conventions
 *	(simplifications) for common operations.
 *
 *  Copyright 1986-1999 Microsoft Corporation. All Rights Reserved.
 */

/*
 *	Routines are included in the first section to manage per-instance
 *	global variables for DLLs. They assume that all of the DLL's
 *	per-instance global variables live in a single block of memory.
 *	Functions are provided to install and retrieve the correct block of
 *	memory for the current instance.
 *
 *	There are only two functions:
 *
 *		PvGetInstanceGlobals	Call this to get the address of the
 *								per-instance globals structure.
 *		ScSetinstanceGlobals	Call this to install the
 *								per-instance globals structure. It
 *								may fail if the number of instances
 *								exceeds a certain limit.
 *
 *	The caller is free to choose the name, size, and allocation
 *	method of the per-instance global variables structure.
 *
 *	The WIN32 implementation uses a pointer in the DLL's data
 *	segment. This assumes that the DLL gets a separate instance
 *	of the default data segment per calling process.
 *
 *	The WIN16 implementation uses a fixed array of pointers and a
 *	matching fixed array of keys unique to the calling process.
 */

/*
 *	The second section consists largely of Win32 file I/O functions
 *	that are not supported under Win16. These functions are
 *	implemented in mapiwin.c, using DOS calls. Most have limitations
 *	relative to their Win32 counterparts, which are spelled out in
 *	the comments to the source code.
 */

#ifndef __MAPIWIN_H__
#define __MAPIWIN_H__

#if _MSC_VER > 1000
#pragma once
#endif

#if defined (WIN32) && !defined (_WIN32)
#define _WIN32
#endif

#include "mapinls.h"

#ifdef __cplusplus
extern "C" {
#endif


/********************************/
/*	Our conventions for things	*/
/*	we choose to do differently	*/
/*	on WIN16 vs. WIN32.			*/
/********************************/

#ifdef	WIN16

#define	MULDIV(x,y,z)				MulDiv32(x,y,z)
#define IsBadReadPtr(lp,cb)			FBadReadPtr(lp,cb)

#define cInstMax					50
LPVOID FAR PASCAL	PvGetInstanceGlobals(void);
LONG FAR PASCAL		ScSetInstanceGlobals(LPVOID pv);
LONG FAR PASCAL		ScSetVerifyInstanceGlobals(LPVOID pv, DWORD dwPid);
LPVOID FAR PASCAL	PvGetVerifyInstanceGlobals(DWORD dwPid);
LPVOID FAR PASCAL	PvSlowGetInstanceGlobals(DWORD dwPid);
BOOL __export FAR PASCAL FCleanupInstanceGlobals(WORD, DWORD);

#elif defined(_MAC)	/* !WIN16 */

#define	MULDIV(x,y,z)				MulDiv(x,y,z)

LPVOID FAR PASCAL	PvGetInstanceGlobals(WORD wDataSet);
LONG FAR PASCAL		ScSetInstanceGlobals(LPVOID pv, WORD wDataSet);
LONG FAR PASCAL		ScSetVerifyInstanceGlobals(LPVOID pv, DWORD dwPid,
						WORD wDataSet);
LPVOID FAR PASCAL	PvGetVerifyInstanceGlobals(DWORD dwPid, DWORD wDataSet);
LPVOID FAR PASCAL	PvSlowGetInstanceGlobals(DWORD dwPid, DWORD wDataSet);
BOOL FAR PASCAL		FCleanupInstanceGlobals(WORD, DWORD);

#else	/* !WIN16 */

#define	MULDIV(x,y,z)				MulDiv(x,y,z)

extern LPVOID pinstX;
#define PvGetInstanceGlobals()					pinstX
#define ScSetInstanceGlobals(_pv)				(pinstX = _pv, 0)
#define PvGetVerifyInstanceGlobals(_pid)		pinstX
#define ScSetVerifyInstanceGlobals(_pv,_pid)	(pinstX = _pv, 0)
#define PvSlowGetInstanceGlobals(_pid)			pinstX

#endif	/* WIN16 */

#if defined(_WIN32) && !defined(_MAC)
#define szMAPIDLLSuffix		"32"
#elif defined(WIN16) || defined(DOS)
#define szMAPIDLLSuffix		""
#elif  defined(_MAC)
#define szMAPIDLLSuffix		"M"
#else
#error "Don't know the suffix for DLLs on this platform"
#endif

/********************************/
/*  Things missing from one		*/
/*	system-provided environment	*/
/*	or the other.				*/
/********************************/

#if !defined(_WIN32)
#define	ZeroMemory(pb,cb)			memset((pb),0,(cb))
#define FillMemory(pb,cb,b)			memset((pb),(b),(cb))
#define CopyMemory(pbDst,pbSrc,cb)	do								\
									{								\
										size_t _cb = (size_t)(cb);	\
										if (_cb)					\
											memcpy(pbDst,pbSrc,_cb);\
									} while (FALSE)
#define MoveMemory(pbDst,pbSrc,cb)	memmove((pbDst),(pbSrc),(cb))

#define UNALIGNED

#endif

#if defined(WIN16) || defined(_MAC)

#ifndef _MAC
#include <error.h>				/*	for GetLastError() */
#endif

typedef	int					INT;
typedef	unsigned long		ULONG;
typedef	short				SHORT;
typedef	unsigned short		USHORT;
typedef double 				LONGLONG;
typedef double 				DWORDLONG;
typedef unsigned char		UCHAR;
typedef unsigned char FAR*	PUCHAR;
typedef int					BOOL;


#ifndef _MAC
typedef char				BOOLEAN;

#ifndef _FILETIME_
#define _FILETIME_
typedef struct tagFILETIME
{
    DWORD dwLowDateTime;
    DWORD dwHighDateTime;
} FILETIME;
#endif		/* _FILETIME */

typedef struct _SYSTEMTIME {
    WORD wYear;
    WORD wMonth;
    WORD wDayOfWeek;
    WORD wDay;
    WORD wHour;
    WORD wMinute;
    WORD wSecond;
    WORD wMilliseconds;
} SYSTEMTIME, *PSYSTEMTIME, FAR *LPSYSTEMTIME;

typedef struct _TIME_ZONE_INFORMATION {
    LONG Bias;
    CHAR StandardName[ 32 ];		/* was WCHAR */
    SYSTEMTIME StandardDate;
    LONG StandardBias;
    CHAR DaylightName[ 32 ];		/* was WCHAR */
    SYSTEMTIME DaylightDate;
    LONG DaylightBias;
} TIME_ZONE_INFORMATION, *PTIME_ZONE_INFORMATION, FAR *LPTIME_ZONE_INFORMATION;


#if defined(DOS) || defined(WIN16)
/* Simulate effect of afx header */
#define __T(x)		x
#define _T(x)		__T(x)
#define TEXT		_T
#endif

#define APIENTRY		WINAPI

#define	SetForegroundWindow			SetActiveWindow

#define wsprintfA					wsprintf
#define GetWindowsDirectoryA		GetWindowsDirectory
#define GetSystemDirectoryA			GetSystemDirectory
#define GetPrivateProfileStringA 	GetPrivateProfileString
#define GetPrivateProfileIntA		GetPrivateProfileInt
#define GetProfileStringA			GetProfileString
#define GetModuleFileNameA			GetModuleFileName
#define CharUpperBuffA				CharUpperBuff
#define LoadLibraryA				LoadLibrary
#define lstrcatA					lstrcat
#define RegisterWindowMessageA		RegisterWindowMessage
#define MAKEINTRESOURCEA			MAKEINTRESOURCE

#define WNDCLASSA					WNDCLASS									

#endif	/* !_MAC */

/* Synchronization */
#define InterlockedIncrement(plong)	(++(*(plong)))
#define InterlockedDecrement(plong) (--(*(plong)))

#ifndef CreateMutex
#define CreateMutexA	CreateMutex
#define CreateMutexW	CreateMutex
#define CreateMutex(pv, bool, sz)	(INVALID_HANDLE_VALUE)
#endif

#define WaitForSingleObject(hObj, dw)	((void)0)
#define ReleaseMutex(hObj)				((BOOL)1)
#define CloseMutexHandle(hObj)			TRUE

#define	CRITICAL_SECTION			ULONG
#define	InitializeCriticalSection(_pcs)	((void)0)
#define	DeleteCriticalSection(_pcs)		((void)0)
#define	EnterCriticalSection(_pcs)		((void)0)
#define	LeaveCriticalSection(_pcs)		((void)0)

#define MAX_PATH					260

#ifndef	_MAC
/*
 *	File Access Modes
 *
 *	The possible combination of file access modes as passed into
 *	the CreateFile() api map to OpenFile() as follows:
 *
 *	 GENERIC_READ						OPEN_ACCESS_READONLY
 *	 GENERIC_WRITE						OPEN_ACCESS_WRITEONLY
 *	 GENERIC_READ | GENERIC_WRITE		OPEN_ACCESS_READWRITE
 *
 *	 0									OPEN_SHARE_DENYREADWRITE
 *	 FILE_SHARE_READ					OPEN_SHARE_DENYWRITE
 *	 FILE_SHARE_WRITE					OPEN_SHARE_DENYREAD
 *	 FILE_SHARE_READ | FILE_SHARE_WRITE	OPEN_SHARE_DENYNONE
 *
 *	Due to the mappings we cannot pass them through directly,
 *	so we will have to use a conversion within APIs that test
 *	these bits.  It would be best to use the Win32 #defines
 *	for these flags and convert as needed in the APIs.
 */
#define GENERIC_READ				(0x80000000) /* from WINNT.H */
#define GENERIC_WRITE				(0x40000000) /* from WINNT.H */
#define FILE_SHARE_READ				(0x00000001) /* from WINNT.H */
#define FILE_SHARE_WRITE			(0x00000002) /* from WINNT.H */
#endif	/* _MAC */

#define FILE_FLAG_SEQUENTIAL_SCAN	0x08000000

#define CREATE_NEW          1
#define CREATE_ALWAYS       2
#define OPEN_EXISTING       3
#define OPEN_ALWAYS         4
#define TRUNCATE_EXISTING   5

#ifndef _MAC
#define INVALID_HANDLE_VALUE		((HANDLE)(-1))
#define DELETE						0x00010000L

#define FILE_BEGIN					0
#define FILE_CURRENT				1
#define FILE_END					2
#endif

#define FILE_ATTRIBUTE_READONLY         0x00000001
#define FILE_ATTRIBUTE_HIDDEN           0x00000002
#define FILE_ATTRIBUTE_SYSTEM           0x00000004
#define FILE_ATTRIBUTE_DIRECTORY        0x00000010
#define FILE_ATTRIBUTE_ARCHIVE          0x00000020
#define FILE_ATTRIBUTE_NORMAL           0x00000080
#define	FILE_ATTRIBUTE_TEMPORARY		0x00000100

#define FILE_FLAG_WRITE_THROUGH     0x80000000
#define FILE_FLAG_RANDOM_ACCESS     0x10000000

#ifndef _MAC
typedef struct _WIN32_FIND_DATA {
    DWORD		dwFileAttributes;
    FILETIME	ftCreationTime;
    FILETIME	ftLastAccessTime;
    FILETIME	ftLastWriteTime;
    DWORD		nFileSizeHigh;
    DWORD		nFileSizeLow;
    DWORD		dwReserved0;
    DWORD		dwReserved1;
    CHAR		cFileName[ MAX_PATH ];
    CHAR		cAlternateFileName[ 16 ];
} WIN32_FIND_DATA, *PWIN32_FIND_DATA, *LPWIN32_FIND_DATA;

#define TIME_ZONE_ID_INVALID		0xFFFFFFFF
#endif
#define TIME_ZONE_ID_UNKNOWN		0
#define TIME_ZONE_ID_STANDARD		1
#define TIME_ZONE_ID_DAYLIGHT		2



DWORD WINAPI	GetLastError(void);
DWORD WINAPI	GetFileAttributes(LPCSTR lpFileName);
DWORD WINAPI	GetFileSize(HANDLE hFile, LPDWORD lpFileSizeHigh);
BOOL WINAPI		GetFileTime(HANDLE hFile, FILETIME FAR *lpftCreation,
				FILETIME FAR *lpftLastAccess, FILETIME FAR *lpftLastWrite);
BOOL WINAPI		SetFileTime(HANDLE hFile, const FILETIME FAR *lpftCreation,
				const FILETIME FAR *lpftLastAccess,
				const FILETIME FAR *lpftLastWrite);
#ifndef _MAC
/*  IsTask can crash - here's a safer one.  */
BOOL WINAPI		FIsTask(HTASK hTask);

HANDLE WINAPI	CreateFile(LPCSTR lpFileName, DWORD dwDesiredAccess,
				DWORD dwShareMode, LPVOID lpSecurityAttributes,
				DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes,
				HANDLE hTemplateFile);
BOOL WINAPI		ReadFile(HANDLE hFile, LPVOID lpBuffer,
				DWORD nNumberOfBytesToRead, LPDWORD lpNumberOfBytesRead,
				LPVOID lpOverlapped);
BOOL WINAPI		WriteFile(HANDLE hFile, LPCVOID lpBuffer,
				DWORD nNumberOfBytesToWrite, LPDWORD lpNumberOfBytesWritten,
				LPVOID lpOverlapped);
#endif
DWORD WINAPI	SetFilePointer(HANDLE hFile, LONG lDistanceToMove,
				LONG FAR *lpDistanceToMoveHigh, DWORD dwMoveMethod);
BOOL WINAPI		SetEndOfFile(HANDLE hFile);
BOOL WINAPI		CloseHandle(HANDLE hObject);
DWORD WINAPI	GetTempPath(DWORD nBufferLength, LPSTR lpBuffer);
UINT WINAPI		GetTempFileName32 (LPCSTR lpPathName, LPCSTR lpPrefixString,
				UINT uUnique, LPSTR lpTempFileName);
BOOL WINAPI		DeleteFile(LPCSTR lpFileName);
#ifndef _MAC
BOOL WINAPI		CreateDirectory(LPCSTR lpPathName, LPVOID lpSecurityAttributes);
#endif
BOOL WINAPI		RemoveDirectory(LPCSTR lpPathName);
BOOL WINAPI		CopyFile(LPCSTR szSrc, LPCSTR szDst, BOOL fFailIfExists);
BOOL WINAPI		MoveFile(LPCSTR lpExistingFileName, LPCSTR lpNewFileName);
HANDLE WINAPI	FindFirstFile(LPCSTR lpFileName, LPWIN32_FIND_DATA lpFindFileData);
BOOL WINAPI		FindNextFile(HANDLE hFindFile, LPWIN32_FIND_DATA lpFindFileData);
BOOL WINAPI		FindClose(HANDLE hFindFile);
DWORD WINAPI	GetFullPathName(LPCSTR lpFileName, DWORD nBufferLength,
			    LPSTR lpBuffer, LPSTR *lpFilePart);
void WINAPI		Sleep(DWORD dwMilliseconds);
LONG WINAPI		CompareFileTime(const FILETIME FAR *, const FILETIME FAR *);
BOOL WINAPI		LocalFileTimeToFileTime(const FILETIME FAR *, FILETIME FAR *);
BOOL WINAPI		FileTimeToLocalFileTime(const FILETIME FAR *, FILETIME FAR *);
BOOL WINAPI		FileTimeToSystemTime(const FILETIME FAR *, SYSTEMTIME FAR *);
BOOL WINAPI		SystemTimeToFileTime(const SYSTEMTIME FAR *, FILETIME FAR *);
void WINAPI		GetSystemTime(SYSTEMTIME FAR *);
void WINAPI		GetLocalTime(SYSTEMTIME FAR *);
BOOL WINAPI		FileTimeToDosDateTime(const FILETIME FAR * lpFileTime,
			    WORD FAR *lpFatDate, WORD FAR *lpFatTime);
BOOL WINAPI		DosDateTimeToFileTime(WORD wFatDate, WORD wFatTime,
			    FILETIME FAR * lpFileTime);
DWORD WINAPI	GetTimeZoneInformation(
				LPTIME_ZONE_INFORMATION lpTimeZoneInformation);
BOOL WINAPI		SetTimeZoneInformation(
				const TIME_ZONE_INFORMATION FAR *lpTimeZoneInformation);

DWORD WINAPI	GetCurrentProcessId(void);
long WINAPI		MulDiv32(long, long, long);
#ifndef _MAC
BOOL WINAPI		FBadReadPtr(const void FAR* lp, UINT cb);
#endif

#else	/* !WIN16 */

/* Remaps GetTempFileName32() to the real 32bit version */

#define GetTempFileName32(_szPath,_szPfx,_n,_lpbuf)	GetTempFileName(_szPath,_szPfx,_n,_lpbuf)

#define CloseMutexHandle	CloseHandle

#endif	/* !WIN16 */


#ifdef _MAC
#define	CRITICAL_SECTION			ULONG
#define	InitializeCriticalSection(_pcs)	((void)0)
#define	DeleteCriticalSection(_pcs)		((void)0)
#define	EnterCriticalSection(_pcs)		((void)0)
#define	LeaveCriticalSection(_pcs)		((void)0)
#endif

/********************************/
/*	Our private conventions		*/
/*	(common to WIN16/WIN32)		*/
/********************************/

#define	Cbtszsize(_a)	((lstrlen(_a)+1)*sizeof(TCHAR))
#define	CbtszsizeA(_a)	((lstrlenA(_a) + 1))
#define	CbtszsizeW(_a)	((lstrlenW(_a) + 1) * sizeof(WCHAR))
#define HexCchOf(_s)	(sizeof(_s)*2+1)
#define HexSizeOf(_s)	(HexCchOf(_s)*sizeof(TCHAR))

BOOL WINAPI IsBadBoundedStringPtr(const void FAR* lpsz, UINT cchMax);

#ifdef __cplusplus
}
#endif

#endif /* __MAPIWIN_H__ */

