NLS: Beispiel für namensbasierte APIs
Die in diesem Thema beschriebene Beispielanwendung veranschaulicht einige der NLS-Funktionen "Gebietsschemaname". Ihre Anwendungen sollten nach Möglichkeit Gebietsschemanamen anstelle von Gebietsschemabezeichnern verwenden.
Die Beispielanwendung verwendet EnumSystemLocalesEx , um alle Gebietsschemas auf dem Betriebssystem aufzulisten, einschließlich ergänzender Gebietsschemas.
Die von der Anwendung unterstützte Enumerationsrückruffunktion kann einen oder mehrere Gebietsschemanamen als Parameter verwenden. EnumSystemLocalesEx übergibt diese Namen an die Rückruffunktion im optionalen lparam-Wert . Wenn der Benutzer die Gebietsschemas in der Befehlszeile eingibt, zeigt die Rückruffunktion nur die angegebenen Gebietsschemas an, anstatt alle Gebietsschemas anzuzeigen.
Für jedes angezeigte Gebietsschema meldet die Rückruffunktion, ob es sich um das Systemgebietsschema handelt, gibt das aktuelle Datum in den Standardformaten des Gebietsschemas aus und zeigt alle Daten für das Gebietsschema in jeder in Windows Vista eingeführten Gebietsschemainformationskonstante an, z. B. LOCALE_SSCRIPTS.
Die Beispielanwendung analysiert alle Eingabegebietsschemas, um mithilfe von IsValidLocaleName zu ermitteln, ob sie gültig sind.
In diesem Beispiel werden die folgenden Funktionen veranschaulicht:
- CompareStringEx
- EnumSystemLocalesEx
- GetDateFormatEx
- GetLocaleInfoEx
- GetSystemDefaultLocaleName
- IsValidLocaleName
- LocaleNameToLCID
// 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 (c) Microsoft Corporation. All rights reserved.
//
// ========================================================================
// CONSOLE APPLICATION : NamedNlsFunctions Project Overview
#include "stdafx.h"
#include "windows.h"
#include "stdio.h"
// All of the LCTYPES new to Windows Vista
LCTYPE NewTypes[] =
{
LOCALE_SNAME,
LOCALE_SDURATION,
LOCALE_SKEYBOARDSTOINSTALL,
LOCALE_SSHORTESTDAYNAME1,
LOCALE_SSHORTESTDAYNAME2,
LOCALE_SSHORTESTDAYNAME3,
LOCALE_SSHORTESTDAYNAME4,
LOCALE_SSHORTESTDAYNAME5,
LOCALE_SSHORTESTDAYNAME6,
LOCALE_SSHORTESTDAYNAME7,
LOCALE_SISO639LANGNAME2,
LOCALE_SISO3166CTRYNAME2,
LOCALE_SNAN,
LOCALE_SPOSINFINITY,
LOCALE_SNEGINFINITY,
LOCALE_SSCRIPTS
};
// Strings so we can print out the LCTYPES
LPCWSTR NewTypeNames[] =
{
L"LOCALE_SNAME",
L"LOCALE_SDURATION",
L"LOCALE_SKEYBOARDSTOINSTALL",
L"LOCALE_SSHORTESTDAYNAME1",
L"LOCALE_SSHORTESTDAYNAME2",
L"LOCALE_SSHORTESTDAYNAME3",
L"LOCALE_SSHORTESTDAYNAME4",
L"LOCALE_SSHORTESTDAYNAME5",
L"LOCALE_SSHORTESTDAYNAME6",
L"LOCALE_SSHORTESTDAYNAME7",
L"LOCALE_SISO639LANGNAME2",
L"LOCALE_SISO3166CTRYNAME2",
L"LOCALE_SNAN",
L"LOCALE_SPOSINFINITY",
L"LOCALE_SNEGINFINITY",
L"LOCALE_SSCRIPTS"
};
// Callback for EnumSystemLocalesEx()
#define BUFFER_SIZE 512
BOOL CALLBACK MyFuncLocaleEx(LPWSTR pStr, DWORD dwFlags, LPARAM lparam)
{
UNREFERENCED_PARAMETER(dwFlags);
WCHAR** argv = (WCHAR**)lparam;
WCHAR wcBuffer[BUFFER_SIZE];
int iResult;
int i;
// If specific locales were specified on the command line check for a match
if (*argv && argv[1])
{
// Check each argument to see if our locale matches
for (i = 1; argv[i] != 0; i++)
{
// Using invariant, check if the name matches the input. CompareStringEx
// is probably overkill, but we want to demonstrate that named API.
if (CompareStringEx(LOCALE_NAME_INVARIANT,
LINGUISTIC_IGNORECASE,
argv[i],
-1,
pStr,
-1,
NULL,
NULL,
0) == CSTR_EQUAL)
{
break;
}
}
// If no match then stop and don't output this one
if (argv[i] == 0)
return TRUE;
}
// Print out the locale name we found
iResult = GetLocaleInfoEx(pStr, LOCALE_SENGLANGUAGE, wcBuffer, BUFFER_SIZE);
// If it succeeds, print it out
if (iResult > 0)
wprintf(L"Locale %s (%s)\n", pStr, wcBuffer);
else
wprintf(L"Locale %s had error %d\n", pStr, GetLastError());
// If this is the system locale, let us know. CompareStringEx
// is probably overkill, but we want to demonstrate that named API.
iResult = GetSystemDefaultLocaleName(wcBuffer, BUFFER_SIZE);
if (iResult > 0)
{
if (CompareStringEx(LOCALE_NAME_INVARIANT,
LINGUISTIC_IGNORECASE,
wcBuffer,
-1,
pStr,
-1,
NULL,
NULL,
0) == CSTR_EQUAL)
{
wprintf(L"Locale %s is the system locale!\n", wcBuffer);
}
}
else
{
wprintf(L"Error %d getting system locale\n", GetLastError());
}
// Get its LCID
LCID lcid = LocaleNameToLCID(pStr, NULL);
if (lcid != 0)
wprintf(L"LCID for %s is %x\n", pStr, lcid);
else
wprintf(L"Error %d getting LCID\n", GetLastError());
// Get today's date
iResult = GetDateFormatEx(pStr, DATE_LONGDATE, NULL, NULL, wcBuffer, BUFFER_SIZE, NULL);
if (iResult > 0)
wprintf(L"Date: %s\n", wcBuffer);
else
wprintf(L"Error %d getting today's date for %s\n", GetLastError(), pStr);
// Loop through all of the new LCTYPES and do GetLocaleInfoEx on them
for (i = 0; i < sizeof(NewTypes) / sizeof(NewTypes[0]); i++)
{
// Get this LCTYPE result for this locale
iResult = GetLocaleInfoEx(pStr, NewTypes[i], wcBuffer, BUFFER_SIZE);
// If it succeeds, print it out
if (iResult > 0)
{
wprintf(L" %s has value %s\n", NewTypeNames[i], wcBuffer);
}
else
{
wprintf(L" %s had error %d\n", NewTypeNames[i], GetLastError());
}
}
return (TRUE);
}
int __cdecl wmain(int argc, wchar_t* argv[])
{
UNREFERENCED_PARAMETER(argc);
// Enumerate all the locales and report on them
EnumSystemLocalesEx( MyFuncLocaleEx, LOCALE_ALL, (LPARAM)argv, NULL);
// See which of the input locales are valid (if any)
if (*argv && argv[1])
{
// Check each argument to see if our locale matches
for (int i = 1; argv[i] != 0; i++)
{
// See if this is a valid locale name
if (!IsValidLocaleName(argv[i]))
{
wprintf(L"%s is not a valid locale name\n", argv[i]);
}
}
}
}
/*
The following is a portion of the results produced by this code example.
Locale en-US (English)
Locale en-US is the system locale!
LCID for en-US is 409
Date: Wednesday, February 03, 2010
LOCALE_SNAME has value en-US
LOCALE_SDURATION has value h:mm:ss
LOCALE_SKEYBOARDSTOINSTALL has value 0409:00000409
LOCALE_SSHORTESTDAYNAME1 has value Mo
LOCALE_SSHORTESTDAYNAME2 has value Tu
LOCALE_SSHORTESTDAYNAME3 has value We
LOCALE_SSHORTESTDAYNAME4 has value Th
LOCALE_SSHORTESTDAYNAME5 has value Fr
LOCALE_SSHORTESTDAYNAME6 has value Sa
LOCALE_SSHORTESTDAYNAME7 has value Su
LOCALE_SISO639LANGNAME2 has value eng
LOCALE_SISO3166CTRYNAME2 has value USA
LOCALE_SNAN has value NaN
LOCALE_SPOSINFINITY has value Infinity
LOCALE_SNEGINFINITY has value -Infinity
LOCALE_SSCRIPTS has value Latn;
Locale fr-FR (French)
LCID for fr-FR is 40c
Date: mercredi 3 f vrier 2010
LOCALE_SNAME has value fr-FR
LOCALE_SDURATION has value HH:mm:ss
LOCALE_SKEYBOARDSTOINSTALL has value 040c:0000040c;0409:00000409
LOCALE_SSHORTESTDAYNAME1 has value lu
LOCALE_SSHORTESTDAYNAME2 has value ma
LOCALE_SSHORTESTDAYNAME3 has value me
LOCALE_SSHORTESTDAYNAME4 has value je
LOCALE_SSHORTESTDAYNAME5 has value ve
LOCALE_SSHORTESTDAYNAME6 has value sa
LOCALE_SSHORTESTDAYNAME7 has value di
LOCALE_SISO639LANGNAME2 has value fra
LOCALE_SISO3166CTRYNAME2 has value FRA
LOCALE_SNAN has value Non Num rique
LOCALE_SPOSINFINITY has value +Infini
LOCALE_SNEGINFINITY has value -Infini
LOCALE_SSCRIPTS has value Latn;
Locale es-ES (Spanish)
LCID for es-ES is c0a
Date: mi rcoles, 03 de febrero de 2010
LOCALE_SNAME has value es-ES
LOCALE_SDURATION has value H:mm:ss
LOCALE_SKEYBOARDSTOINSTALL has value 0c0a:0000040a;0409:00000409
LOCALE_SSHORTESTDAYNAME1 has value lu
LOCALE_SSHORTESTDAYNAME2 has value ma
LOCALE_SSHORTESTDAYNAME3 has value mi
LOCALE_SSHORTESTDAYNAME4 has value ju
LOCALE_SSHORTESTDAYNAME5 has value vi
LOCALE_SSHORTESTDAYNAME6 has value s
LOCALE_SSHORTESTDAYNAME7 has value do
LOCALE_SISO639LANGNAME2 has value spa
LOCALE_SISO3166CTRYNAME2 has value ESP
LOCALE_SNAN has value NeuN
LOCALE_SPOSINFINITY has value Infinito
LOCALE_SNEGINFINITY has value -Infinito
LOCALE_SSCRIPTS has value Latn;
*/