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81 lines
2.3 KiB
81 lines
2.3 KiB
//+-------------------------------------------------------------------------
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1996 - 1997
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//
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// File: utf8.h
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//
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// Contents: WideChar (UNICODE) to/from UTF8 APIs
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//
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// APIs: WideCharToUTF8
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// UTF8ToWideChar
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//
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// History: 19-Feb-97 philh created
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//--------------------------------------------------------------------------
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#ifndef __UTF8_H__
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#define __UTF8_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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//+-------------------------------------------------------------------------
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// Maps a wide-character (Unicode) string to a new UTF-8 encoded character
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// string.
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//
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// The wide characters are mapped as follows:
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//
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// Start End Bits UTF-8 Characters
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// ------ ------ ---- --------------------------------
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// 0x0000 0x007F 7 0x0xxxxxxx
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// 0x0080 0x07FF 11 0x110xxxxx 0x10xxxxxx
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// 0x0800 0xFFFF 16 0x1110xxxx 0x10xxxxxx 0x10xxxxxx
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//
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// The parameter and return value semantics are the same as for the
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// Win32 API, WideCharToMultiByte.
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//
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// Note, starting with NT 4.0, WideCharToMultiByte supports CP_UTF8. CP_UTF8
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// isn't supported on Win95.
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//--------------------------------------------------------------------------
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int
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WINAPI
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WideCharToUTF8(
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IN LPCWSTR lpWideCharStr,
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IN int cchWideChar,
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OUT LPSTR lpUTF8Str,
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IN int cchUTF8
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);
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//+-------------------------------------------------------------------------
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// Maps a UTF-8 encoded character string to a new wide-character (Unicode)
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// string.
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//
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// See CertWideCharToUTF8 for how the UTF-8 characters are mapped to wide
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// characters.
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//
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// The parameter and return value semantics are the same as for the
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// Win32 API, MultiByteToWideChar.
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//
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// If the UTF-8 characters don't contain the expected high order bits,
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// ERROR_INVALID_PARAMETER is set and 0 is returned.
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//
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// Note, starting with NT 4.0, MultiByteToWideChar supports CP_UTF8. CP_UTF8
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// isn't supported on Win95.
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//--------------------------------------------------------------------------
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int
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WINAPI
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UTF8ToWideChar(
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IN LPCSTR lpUTF8Str,
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IN int cchUTF8,
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OUT LPWSTR lpWideCharStr,
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IN int cchWideChar
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);
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#ifdef __cplusplus
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} // Balance extern "C" above
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#endif
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#endif
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