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//+-------------------------------------------------------------------------
//
// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
// PARTICULAR PURPOSE.
//
// Copyright 1998 - 2001 Microsoft Corporation. All Rights Reserved.
//
// File: langreg.hxx
//
// PURPOSE: Helper classes for sample programs
//
// PLATFORM: Windows 2000 and later
//
//--------------------------------------------------------------------------
#pragma once
//
// Structure to define language resource class
//
struct SLangClassEntry{ WCHAR const * pwszClassId; WCHAR const * pwszClassIdDescription; WCHAR const * pwszDLL; WCHAR const * pwszThreadingModel;};
struct SLangRegistry{ WCHAR const * pwszLangName; LONG lcid; SLangClassEntry WordBreaker; SLangClassEntry Stemmer;};
//
// Sample use of the structures
//
//
// SLangClassEntry const NeutralWordBreaker =
// { L"{369647e0-17b0-11ce-9950-00aa004bbb1f}",
// L"Neutral Word Breaker",
// L"query.dll",
// L"both" };
//
// SLangRegistry const English_US_LangRes =
// { L"English_US", 1033,
// { L"{59e09780-8099-101b-8df3-00000b65c3b5}",
// L"English_US Word Breaker",
// L"infosoft.dll",
// L"both" },
// { L"{eeed4c20-7f1b-11ce-be57-00aa0051fe20}",
// L"English_US Stemmer",
// L"infosoft.dll",
// L"both" }
// };
//
//
// Function prototypes
//
inline long RegisterALanguageResource( SLangRegistry const & LangRes );inline long RegisterALanguageClass( SLangClassEntry const & LangClass );
inline long UnRegisterALanguageResource( SLangRegistry const & LangRes );inline long UnRegisterALanguageClass( SLangClassEntry const & LangClass );
//+---------------------------------------------------------------------------
//
// Function: RegisterALanguageResource, private
//
// Synopsis: Registers a language resource.
//
// Arguments: [LangRes] -- Language resource description
//
// Returns: ERROR_SUCCESS on success
//
// History: 05-Jan-99 AlanW Created
//
//----------------------------------------------------------------------------
inline long RegisterALanguageResource( SLangRegistry const & LangRes ){ WCHAR wcTemp[MAX_PATH];
long dwError; HKEY hKey = (HKEY)INVALID_HANDLE_VALUE;
wcscpy( wcTemp, L"System\\CurrentControlSet\\Control\\ContentIndex\\Language\\" );
if ( ( wcslen( wcTemp ) + wcslen( LangRes.pwszLangName ) ) >= MAX_PATH ) return ERROR_INSUFFICIENT_BUFFER;
wcscat( wcTemp, LangRes.pwszLangName );
do { DWORD dwDisposition;
dwError = RegCreateKeyExW( HKEY_LOCAL_MACHINE, // Root
wcTemp, // Sub key
0, // Reserved
0, // Class
0, // Flags
KEY_ALL_ACCESS, // Access
0, // Security
&hKey, // Handle
&dwDisposition ); // Disposition
if ( ERROR_SUCCESS != dwError ) break;
//
// Write the locale ID
//
dwError = RegSetValueExW( hKey, // Key
L"Locale", // Name
0, // Reserved
REG_DWORD, // Type
(BYTE *)&LangRes.lcid, // Value
sizeof DWORD );
if ( ERROR_SUCCESS != dwError ) break;
//
// Create the word breaker class description
//
if (LangRes.WordBreaker.pwszClassId != 0) { dwError = RegisterALanguageClass( LangRes.WordBreaker ); if ( ERROR_SUCCESS != dwError ) break;
dwError = RegSetValueExW( hKey, // Key
L"WBreakerClass", // Name
0, // Reserved
REG_SZ, // Type
(BYTE *)LangRes.WordBreaker.pwszClassId, // Value
(1 + wcslen(LangRes.WordBreaker.pwszClassId) ) * sizeof(WCHAR) ); if ( ERROR_SUCCESS != dwError ) break;
}
//
// Create the stemmer class description
//
if (LangRes.Stemmer.pwszClassId != 0) { dwError = RegisterALanguageClass( LangRes.Stemmer ); if ( ERROR_SUCCESS != dwError ) break;
dwError = RegSetValueExW( hKey, // Key
L"StemmerClass", // Name
0, // Reserved
REG_SZ, // Type
(BYTE *)LangRes.Stemmer.pwszClassId, // Value
(1 + wcslen(LangRes.Stemmer.pwszClassId) ) * sizeof(WCHAR) ); if ( ERROR_SUCCESS != dwError ) break;
}
} while( FALSE );
if ( (HKEY)INVALID_HANDLE_VALUE != hKey ) { RegCloseKey( hKey ); hKey = (HKEY)INVALID_HANDLE_VALUE; }
return dwError;}
//+---------------------------------------------------------------------------
//
// Function: UnRegisterALanguageResource, private
//
// Synopsis: Unregisters a language resource.
//
// Arguments: [LangRes] -- Language resource description
//
// Returns: ERROR_SUCCESS on success
//
// History: 05-Jan-99 AlanW Created
//
//----------------------------------------------------------------------------
inline long UnRegisterALanguageResource( SLangRegistry const & LangRes ){ WCHAR wcTemp[MAX_PATH];
wcscpy( wcTemp, L"System\\CurrentControlSet\\Control\\ContentIndex\\Language\\" );
if ( ( wcslen( wcTemp ) + wcslen( LangRes.pwszLangName ) ) >= MAX_PATH ) return ERROR_INSUFFICIENT_BUFFER;
wcscat( wcTemp, LangRes.pwszLangName );
HKEY hKey = (HKEY)INVALID_HANDLE_VALUE; long dwError = RegOpenKeyExW( HKEY_LOCAL_MACHINE, // Root
wcTemp, // Sub key
0, // Reserved
KEY_ALL_ACCESS, // Access
&hKey ); // Handle
//
// Delete the word breaker class description
//
if (LangRes.WordBreaker.pwszClassId != 0) { dwError = UnRegisterALanguageClass( LangRes.WordBreaker );
if (hKey != INVALID_HANDLE_VALUE) dwError = RegDeleteValueW( hKey, // Key
L"WBreakerClass" ); // Name
}
//
// Create the stemmer class description
//
if (LangRes.Stemmer.pwszClassId != 0) { dwError = UnRegisterALanguageClass( LangRes.Stemmer );
if (hKey != INVALID_HANDLE_VALUE) dwError = RegDeleteValueW( hKey, // Key
L"StemmerClass" ); // Name
}
if (hKey != INVALID_HANDLE_VALUE) { DWORD dwNumofKeys = 0; DWORD dwNumofValues = 0; dwError = RegQueryInfoKeyW( hKey, // Hkey
0, // Buffer for class string
0, // Size of class string buffer
0, // reserved
&dwNumofKeys,// number of subkeys
0, // longest subkey name length
0, // longest class string length
&dwNumofValues,// number of value entries
0, // longest value name length
0, // longest value data length
0, // security descriptor length
0 ); // last write time);
if ( ERROR_SUCCESS == dwError ) { if ( (dwNumofValues == 1) && (dwNumofKeys==0) ) {
//
// There is only one value and no sub-keys under this key,
// Delete the Locale value and then the sub-key for this Lang
// if that succeeded.
//
RegDeleteValueW( hKey, // Key
L"Locale" ); // Name
dwError = RegQueryInfoKeyW( hKey, // Hkey
0, // class string
0, // Size of class string
0, // reserved
&dwNumofKeys, 0, // max subkey name len
0, // max class string len
&dwNumofValues, 0, // max value name len
0, // max value data len
0, // security desc len
0 ); // last write time);
} } RegCloseKey( hKey );
if ( ERROR_SUCCESS == dwError && (0 == dwNumofValues) && (0 == dwNumofKeys) ) dwError = RegDeleteKeyW( HKEY_LOCAL_MACHINE, // Root
wcTemp ); // Sub key
} return dwError;}
//+---------------------------------------------------------------------------
//
// Function: RegisterALanguageClass, private
//
// Synopsis: Registers a language resource classID in registry
//
// Arguments: [LangClass] -- IWordBreaker or IStemmer description
//
// Returns: ERROR_SUCCESS on success
//
// History: 05-Jan-99 AlanW Created
//
//----------------------------------------------------------------------------
inline long RegisterALanguageClass( SLangClassEntry const & LangClass ){ WCHAR const * aKeyValues[4] = { LangClass.pwszClassId, LangClass.pwszClassIdDescription, L"InprocServer32", LangClass.pwszDLL };
long retVal = BuildKeyValues( aKeyValues, sizeof(aKeyValues)/sizeof(aKeyValues[0]) ); if ( ERROR_SUCCESS == retVal ) retVal = AddThreadingModel( LangClass.pwszClassId, LangClass.pwszThreadingModel );
return retVal;}
//+---------------------------------------------------------------------------
//
// Function: UnRegisterALanguageClass, private
//
// Synopsis: Unregisters a language resource classID
//
// Arguments: [LangClass] -- IWordBreaker or IStemmer description
//
// Returns: ERROR_SUCCESS on success
//
// History: 05-Jan-99 AlanW Created
//
//----------------------------------------------------------------------------
inline long UnRegisterALanguageClass( SLangClassEntry const & LangClass ){ WCHAR const * aKeyValues[4] = { LangClass.pwszClassId, LangClass.pwszClassIdDescription, L"InprocServer32", LangClass.pwszDLL };
return DestroyKeyValues( aKeyValues, sizeof(aKeyValues)/sizeof(aKeyValues[0]) );}
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