Source code of Windows XP (NT5)
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/*++
Copyright (c) 1998 Microsoft Corporation
Module Name:
unicode.h
Abstract:
Declares the interfaces for unicode/ansi conversion.
See macros at the end of this file for details! (Search for ***)
Author:
Jim Schmidt (jimschm) 02-Sep-1997
Revision History:
jimschm 16-Mar-2000 PTSTR<->PCSTR/PCWSTR routines
jimschm 15-Feb-1999 Eliminated AnsiFromUnicode and UnicodeFromAnsi
calinn 07-Jul-1998 SetGlobalPage/GetGlobalPage
mikeco 03-Nov-1997 AnsiFromUnicode/UnicodeFromAnsi
--*/
#pragma once
extern WORD g_GlobalCodePage;
#define OurGetACP() (g_GlobalCodePage)
VOID
SetGlobalCodePage (
IN WORD CodePage,
IN LCID Locale
);
VOID
GetGlobalCodePage (
OUT PWORD CodePage, OPTIONAL
OUT PLCID Locale OPTIONAL
);
WORD
SetConversionCodePage (
IN WORD CodePage
);
#define INVALID_CHAR_COUNT 0xffffffff
//
// Explicit conversions, pool-based, unlimited size
//
PCSTR
RealUnicodeToDbcsN (
IN PMHANDLE Pool, OPTIONAL
IN PCWSTR StrIn,
IN DWORD Chars
);
PCWSTR
RealDbcsToUnicodeN (
IN PMHANDLE Pool, OPTIONAL
IN PCSTR StrIn,
IN DWORD Chars
);
#define UnicodeToDbcsN(p,s,c) TRACK_BEGIN(PCSTR, UnicodeToDbcsN)\
RealUnicodeToDbcsN(p,s,c)\
TRACK_END()
#define DbcsToUnicodeN(p,s,c) TRACK_BEGIN(PCWSTR, DbcsToUnicodeN)\
RealDbcsToUnicodeN(p,s,c)\
TRACK_END()
#define UnicodeToDbcs(pool,str) UnicodeToDbcsN(pool,str,(DWORD)wcslen(str))
#define DbcsToUnicode(pool,str) DbcsToUnicodeN(pool,str,CharCountA(str))
#define ConvertWtoA(unicode_str) UnicodeToDbcsN(NULL,unicode_str,(DWORD)wcslen(unicode_str))
#define ConvertAtoW(dbcs_str) DbcsToUnicodeN(NULL,dbcs_str,CharCountA(dbcs_str))
VOID
FreeConvertedPoolStr (
IN PMHANDLE Pool, OPTIONAL
IN PVOID StrIn
);
#define FreeConvertedStr(str) FreeConvertedPoolStr(NULL,(PVOID)(str))
//
// In-place explicit conversions, caller handles buffer sizing
//
PSTR
KnownSizeUnicodeToDbcsN (
OUT PSTR StrOut,
IN PCWSTR StrIn,
IN DWORD CharCount
);
PWSTR
KnownSizeDbcsToUnicodeN (
OUT PWSTR StrOut,
IN PCSTR StrIn,
IN DWORD CharCount
);
#define KnownSizeUnicodeToDbcs(out,in) KnownSizeUnicodeToDbcsN(out,in,INVALID_CHAR_COUNT)
#define KnownSizeDbcsToUnicode(out,in) KnownSizeDbcsToUnicodeN(out,in,INVALID_CHAR_COUNT)
#define KnownSizeWtoA KnownSizeUnicodeToDbcs
#define KnownSizeAtoW KnownSizeDbcsToUnicode
#define MaxSizeUnicodeToDbcs(out,in,c) KnownSizeUnicodeToDbcsN(out,in,min(c,CharCountW(in)))
#define MaxSizeDbcsToUnicode(out,in,c) KnownSizeDbcsToUnicodeN(out,in,min(c,CharCountA(in)))
PSTR
DirectUnicodeToDbcsN (
OUT PSTR StrOut,
IN PCWSTR StrIn,
IN DWORD Bytes
);
PWSTR
DirectDbcsToUnicodeN (
OUT PWSTR StrOut,
IN PCSTR StrIn,
IN DWORD Bytes
);
#define DirectUnicodeToDbcs(out,in) DirectUnicodeToDbcsN(out,in,INVALID_CHAR_COUNT)
#define DirectDbcsToUnicode(out,in) DirectDbcsToUnicodeN(out,in,INVALID_CHAR_COUNT)
#define DirectWtoA DirectUnicodeToDbcs
#define DirectAtoW DirectDbcsToUnicode
//
// TCHAR conversions -- do not call A & W versions directly
//
#define CreateDbcsW(unicode_str) ConvertWtoA(unicode_str)
#define DestroyDbcsW(unicode_str) FreeConvertedStr(unicode_str)
#define CreateUnicodeW(unicode_str) (unicode_str)
#define DestroyUnicodeW(unicode_str)
#define CreateDbcsA(dbcs_str) (dbcs_str)
#define DestroyDbcsA(dbcs_str)
#define CreateUnicodeA(dbcs_str) ConvertAtoW(dbcs_str)
#define DestroyUnicodeA(dbcs_str) FreeConvertedStr(dbcs_str)
#define DuplicateDbcsW(unicode_str) ((PSTR) ConvertWtoA(unicode_str))
#define FreeDuplicatedDbcsW(unicode_str) FreeConvertedStr(unicode_str)
#define DuplicateUnicodeW(unicode_str) ((PWSTR) DuplicateTextW(unicode_str))
#define FreeDuplicatedUnicodeW(unicode_str) FreeTextW(unicode_str)
#define DuplicateDbcsA(dbcs_str) ((PSTR) DuplicateTextA(dbcs_str))
#define FreeDuplicatedDbcsA(dbcs_str) FreeTextA(dbcs_str)
#define DuplicateUnicodeA(dbcs_str) ((PWSTR) ConvertAtoW(dbcs_str))
#define FreeDuplicatedUnicodeA(dbcs_str) FreeConvertedStr(dbcs_str)
//
// **********************************************************************
//
// - Call ConvertWtoA or ConvertAtoW for PCSTR<->PCWSTR conversion,
// FreeConvertedStr to clean up
//
// - Call KnownSizeAtoW or KnownSizeWtoA for PCSTR<->PCWSTR conversion
// when you know the destination can hold the result
//
// - Call the routines below for TCHAR<->dbcs/unicode conversion
//
// **********************************************************************
//
#ifdef UNICODE
//
// If your string is a PCTSTR, use these routines:
//
#define CreateDbcs CreateDbcsW
#define CreateUnicode CreateUnicodeW
#define DestroyDbcs DestroyDbcsW
#define DestroyUnicode DestroyUnicodeW
//
// If your string is a PTSTR, use these routines:
//
#define DuplicateDbcs DuplicateDbcsW
#define DuplicateUnicode DuplicateUnicodeW
#define FreeDuplicatedDbcs FreeDuplicatedDbcsW
#define FreeDuplicatedUnicode FreeDuplicatedUnicodeW
//
// If your string is a PCSTR or PCWSTR, use these routines:
//
#define ConvertAtoT ConvertAtoW
#define ConvertWtoT(x) (x)
#define FreeAtoT FreeConvertedStr
#define FreeWtoT(x)
// Known size means you know the out buffer is big enough!
#define KnownSizeAtoT KnownSizeAtoW
#define KnownSizeWtoT(out,in) (in)
// These are low-level routines that don't care about nuls:
#define DirectAtoT DirectAtoW
#define DirectWtoT(out,in) (in)
#else
//
// If your string is a PCTSTR, use these routines:
//
#define CreateDbcs CreateDbcsA
#define CreateUnicode CreateUnicodeA
#define DestroyDbcs DestroyDbcsA
#define DestroyUnicode DestroyUnicodeA
//
// If your string is a PCSTR or PCWSTR, use these routines:
//
#define ConvertAtoT(x) (x)
#define ConvertWtoT ConvertWtoA
#define FreeAtoT(x)
#define FreeWtoT FreeConvertedStr
//
// If your string is a PTSTR, use these routines:
//
#define DuplicateDbcs DuplicateDbcsA
#define DuplicateUnicode DuplicateUnicodeA
#define FreeDuplicatedDbcs FreeDuplicatedDbcsA
#define FreeDuplicatedUnicode FreeDuplicatedUnicodeA
// Known size means you know the out buffer is big enough!
#define KnownSizeAtoT(out,in) (in)
#define KnownSizeWtoT KnownSizeWtoA
// These are low-level routines that don't care about nuls:
#define DirectAtoT(out,in) (in)
#define DirectWtoT DirectWtoA
#endif