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NLS supports the functions defined in the following table.
| Function | Description |
|---|---|
| AdjustCalendarDate | Deprecated. Adjusts a date by a specified number of years, months, weeks or days. |
| CompareString | Compares two character strings, for a locale specified by identifier. |
| CompareStringEx | Compares two Unicode (wide character) strings, for a locale specified by name. |
| CompareStringOrdinal | Compares two Unicode strings to test binary equivalence. |
| ConvertCalDateTimeToSystemTime | Deprecated. Converts a specified CALDATETIME structure to a SYSTEMTIME structure. |
| ConvertDefaultLocale | Converts a default locale value to an actual locale identifier. |
| ConvertSystemTimeToCalDateTime | Deprecated. Converts a specified SYSTEMTIME structure to a CALDATETIME structure. |
| DownlevelGetLocaleScripts | Provides a list of scripts for the specified locale. |
| DownlevelGetParentLocaleLCID | Retrieves the locale identifier for the parent of the supplied locale. |
| DownlevelGetParentLocaleName | Retrieves the locale name for the parent of the supplied locale. |
| DownlevelGetStringScripts | Provides a list of scripts used in the specified Unicode string. |
| DownlevelLCIDToLocaleName | Converts a locale identifier to a locale name. |
| DownlevelLocaleNameToLCID | Converts a locale name to a locale identifier that can be used to get information from the operating system. |
| DownlevelVerifyScripts | Compares two enumerated lists of scripts. |
| EnumCalendarInfo | Enumerates calendar information for a specified locale. |
| EnumCalendarInfoEx | Enumerates calendar information for a locale specified by identifier. |
| EnumCalendarInfoExEx | Enumerates calendar information for a locale specified by name. |
| EnumCalendarInfoProc | An application-defined callback function that processes enumerated calendar information provided by the EnumCalendarInfo function. |
| EnumCalendarInfoProcEx | An application-defined callback function that processes enumerated calendar information provided by the EnumCalendarInfoEx function. |
| EnumCalendarInfoProcExEx | An application-defined callback function that processes enumerated calendar information provided by the EnumCalendarInfoExEx function. |
| EnumCodePagesProc | An application-defined callback function that processes enumerated code page information provided by the EnumSystemCodePages function. |
| EnumDateFormats | Enumerates the long date, short date, or year/month formats that are available for a specified locale. |
| EnumDateFormatsEx | Enumerates the long date, short date, or year/month formats that are available for a specified locale. |
| EnumDateFormatsExEx | Enumerates the long date, short date, or year/month formats that are available for a locale specified by name. |
| EnumDateFormatsProc | An application-defined callback function that processes date format information provided by the EnumDateFormats function. |
| EnumDateFormatsProcEx | An application-defined callback function that processes date format information provided by the EnumDateFormatsEx function. |
| EnumDateFormatsProcExEx | An application-defined callback function that processes date format information provided by the EnumDateFormatsExEx function. |
| EnumGeoInfoProc | An application-defined callback function that processes enumerated geographical location information provided by the EnumSystemGeoID function. |
| EnumLanguageGroupLocales | Enumerates the locales in a specified language group. |
| EnumLanguageGroupLocalesProc | An application-defined callback function that processes enumerated language group locale information provided by the EnumLanguageGroupLocales function. |
| EnumLanguageGroupsProc | An application-defined callback function that processes enumerated language group information provided by the EnumSystemLanguageGroups function. |
| EnumLocalesProc | An application-defined callback function that processes enumerated locale information provided by the EnumSystemLocales function. |
| EnumLocalesProcEx | An application-defined callback function that processes enumerated locale information provided by the EnumSystemLocalesEx function. |
| EnumSystemCodePages | Enumerates the code pages that are either installed on or supported by an operating system. |
| EnumSystemGeoID | Enumerates the geographical location identifiers (type GEOID) that are available on the operating system. |
| EnumSystemGeoNames | Enumerates the two-letter International Organization for Standardization (ISO) 3166-1 codes or numeric United Nations (UN) Series M, Number 49 (M.49) codes for geographical locations that are available on the operating system. |
| EnumSystemLanguageGroups | Enumerates the language groups that are either installed on or supported by an operating system. |
| EnumSystemLocales | Enumerates the locales that are either installed on or supported by an operating system. |
| EnumSystemLocalesEx | Enumerates the locales that are either installed on or supported by an operating system. |
| EnumTimeFormats | Enumerates the time formats that are available for a locale specified by identifier. |
| EnumTimeFormatsEx | Enumerates the time formats that are available for a locale specified by name. |
| EnumTimeFormatsProc | An application-defined callback function that processes enumerated time format information provided by the EnumTimeFormats function. |
| EnumTimeFormatsProcEx | An application-defined callback function that processes enumerated time format information provided by the EnumTimeFormatsEx function. |
| FindNLSString | Locates a Unicode string (wide characters) or its equivalent in another Unicode string for a locale specified by identifier. |
| FindNLSStringEx | Locates a Unicode string (wide characters) or its equivalent in another Unicode string for a locale specified by identifier. |
| FindStringOrdinal | Locates a Unicode string (wide characters) in another Unicode string for a non-linguistic comparison. |
| FoldString | Maps one Unicode string to another, performing the specified transformation. |
| Geo_EnumNameProc | An application-defined callback function that processes enumerated geographical location information provided by the EnumSystemGeoNames function. |
| GetACP | Retrieves the current Windows ANSI code page identifier for the system. |
| GetCalendarDateFormatEx | Deprecated. Retrieves a properly formatted date string for the specified locale using the specified date. |
| GetCalendarInfo | Retrieves information about a calendar for a locale specified by identifier. |
| GetCalendarInfoEx | Retrieves information about a calendar for a locale specified by name. |
| GetCalendarSupportedDateRange | Deprecated. Gets the supported date range for a specified calendar. |
| GetCPInfo | Retrieves information about any valid installed or available code page. |
| GetCPInfoEx | Retrieves information about any valid installed or available code page. |
| GetCurrencyFormat | Formats a number string as a currency string for a locale specified by identifier. |
| GetCurrencyFormatEx | Formats a number string as a currency string for a locale specified by name. |
| GetDateFormat | Formats a date as a date string for a locale specified by identifier. |
| GetDateFormatEx | Formats a date as a date string for a locale specified by name. |
| GetDurationFormat | Formats a duration of time as a time string for a locale specified by identifier. |
| GetDurationFormatEx | Formats a duration of time as a time string for a locale specified by name. |
| GetGeoInfo | Gets information about a specified geographical location. |
| GetGeoInfoEx | Retrieves information about a geographic location that you specify by using a two-letter ISO 3166-1 code or numeric UN M.49 code. |
| GetLocaleInfo | Retrieves information about a locale specified by identifier. |
| GetLocaleInfoEx | Retrieves information about a locale specified by name. |
| GetNLSVersion | Gets information about the current version of a specified NLS capability for a locale specified by identifier. |
| GetNLSVersionEx | Gets information about the current version of a specified NLS capability for a locale specified by name. |
| GetNumberFormat | Formats a number string as a number string customized for a locale specified by identifier. |
| GetNumberFormatEx | Formats a number string as a number string customized for a locale specified by name. |
| GetOEMCP | Retrieves the current original equipment manufacturer (OEM) code page identifier for the operating system. |
| GetStringScripts | Provides a list of scripts used in the specified string. |
| GetStringTypeA | Deprecated. Retrieves character type information for the characters in the specified ANSI source string. |
| GetStringTypeEx | Retrieves character type information for the characters in the specified source string. |
| GetStringTypeW | Retrieves character type information for the characters in the specified Unicode source string. |
| GetSystemDefaultLangID | Returns the language identifier for the system locale. |
| GetSystemDefaultLCID | Returns the locale identifier for the system locale. |
| GetSystemDefaultLocaleName | Retrieves the system default locale name. |
| GetThreadLocale | Returns the locale identifier of the current locale for the calling thread. |
| GetTimeFormat | Formats time as a time string for a locale specified by identifier. |
| GetTimeFormatEx | Formats time as a time string for a locale specified by name. |
| GetUserDefaultGeoName | Retrieves the two-letter ISO 3166-1 code or numeric UN M.49 code for the default geographical location of the user. |
| GetUserDefaultLangID | Returns the language identifier for the current user locale. |
| GetUserDefaultLCID | Returns the locale identifier for the user default locale. |
| GetUserDefaultLocaleName | Retrieves the user default locale name. |
| GetUserGeoID | Retrieves information about the geographical location of the user. |
| IdnToAscii | Converts an internationalized domain name (IDN) or other internationalized label to a Unicode (wide character) representation of the ASCII string that represents the name in the Punycode transfer encoding syntax. |
| IdnToNameprepUnicode | Converts an internationalized domain name (IDN) or another internationalized label to the NamePrep form specified by Network Working Group RFC 3491, but does not perform the additional conversion to Punycode. |
| IdnToUnicode | Converts the Punycode form of an internationalized domain name (IDN) or another internationalized label to the normal Unicode UTF-16 encoding syntax. |
| IsCalendarLeapYear | Deprecated. Identifies whether the specified year is a leap year within the given era for the specific calendar. |
| IsNLSDefinedString | Determines if each character in a string has a defined result for a specified NLS capability. |
| IsNormalizedString | Verifies that a string is normalized according to Unicode 4.0 TR#15. |
| IsValidCodePage | Determines if a specified code page is valid. |
| IsValidLanguageGroup | Determines if a language group is installed or supported on the operating system. |
| IsValidLocale | Determines if the specified locale is installed or supported on the operating system. |
| IsValidLocaleName | Determines if the specified locale name is valid for a locale that is installed or supported on the operating system. |
| IsValidNLSVersion | Determines if the NLS version is valid for a given NLS function. |
| LCIDToLocaleName | Converts a locale identifier to a locale name. |
| LCMapString | For a locale specified by identifier, maps one input character string to another using a specified transformation, or generates a sort key for the input string. |
| LCMapStringEx | For a locale specified by name, maps one input character string to another using a specified transformation, or generates a sort key for the input string. |
| LoadStringByReference | Unsupported. This function may be altered or unavailable. Instead, use SHLoadIndirectString. |
| LocaleNameToLCID | Converts a locale name to locale identifier. |
| NormalizeString | Normalizes characters of a text string according to Unicode 4.0 TR#15. |
| NotifyUILanguageChange | Unsupported. This function may be altered or unavailable. |
| ResolveLocaleName | Finds a possible locale name match for the supplied name. |
| RtlIsValidLocaleName | Determines if a specified locale is installed or supported on the operating system. |
| SetCalendarInfo | Sets an item of locale information for a calendar. |
| SetLocaleInfo | Sets an item of information in the user override portion of the current locale. |
| SetThreadLocale | Sets the current locale of the calling thread. |
| SetUserGeoID | Sets the geographical location identifier for the user. |
| SetUserGeoName | Sets the geographic location for the current user to the specified two-letter ISO 3166-1 code or numeric UN M.49 code. |
| UpdateCalendarDayOfWeek | Gets the day of week that corresponds with a specified day and populates the DayOfWeek field in the given CALDATETIME structure. |
| VerifyScripts | Compares two enumerated lists of scripts. |
Note
Beginning in Windows 8: If your app passes language tags to any of these functions from the Windows.Globalization namespace, it must first convert the tags by calling ResolveLocaleName.