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# QSystemLocale Class Reference
[QtCore module]

The QSystemLocale class can be used to finetune the system locale of the user. More...

     #include <QSystemLocale>

This class was introduced in Qt 4.2.

- List of all members, including inherited members

### Public Types

- enum QueryType { LanguageId, CountryId, DecimalPoint, GroupSeparator, ..., MeasurementSystem }

### Public Functions

- QSystemLocale ()
- virtual ~QSystemLocale ()

## Detailed Description

The QSystemLocale class can be used to finetune the system locale of the user.

Warning: This class is only useful in very rare cases. Usually QLocale offers all the functionality required for application development.

QSystemLocale allows to override the values provided by the system locale (QLocale::system()).

See also QLocale.

## Member Type Documentation

### enum QSystemLocale::QueryType

Specifies the type of information queried by query(). For each value the type of information to return from the query() method is listed.

Constant | Value | Description
--- | --- | ---
`QSystemLocale::LanguageId` | `0` | a uint specifying the language.
`QSystemLocale::CountryId` | `1` | a uint specifying the country.
`QSystemLocale::DecimalPoint` | `2` | a QString specifying the decimal point.
`QSystemLocale::GroupSeparator` | `3` | a QString specifying the group separator.
`QSystemLocale::ZeroDigit` | `4` | a QString specifying the zero digit.
`QSystemLocale::NegativeSign` | `5` | a QString specifying the minus sign.
`QSystemLocale::DateFormatLong` | `6` | a QString specifying the long date format
`QSystemLocale::DateFormatShort` | `7` | a QString specifying the short date format
`QSystemLocale::TimeFormatLong` | `8` | a QString specifying the long time format
`QSystemLocale::TimeFormatShort` | `9` | a QString specifying the short time format
`QSystemLocale::DayNameLong` | `10` | a QString specifying the name of a weekday. the in variant contains an integer between 1 and 7 (Monday - Friday)
`QSystemLocale::DayNameShort` | `11` | a QString specifying the short name of a weekday. the in variant contains an integer between 1 and 7 (Monday - Friday)
`QSystemLocale::MonthNameLong` | `12` | a QString specifying the name of a month. the in variant contains an integer between 1 and 12
`QSystemLocale::MonthNameShort` | `13` | a QString specifying the short name of a month. the in variant contains an integer between 1 and 12
`QSystemLocale::DateToStringLong` | `14` | converts the QDate stored in the in variant to a QString using the long date format
`QSystemLocale::DateToStringShort` | `15` | converts the QDate stored in the in variant to a QString using the short date format
`QSystemLocale::TimeToStringLong` | `16` | converts the QTime stored in the in variant to a QString using the long time format
`QSystemLocale::TimeToStringShort` | `17` | converts the QTime stored in the in variant to a QString using the short time format
`QSystemLocale::DateTimeFormatLong` | `18` | a QString specifying the long date time format
`QSystemLocale::DateTimeFormatShort` | `19` | a QString specifying the short date time format
`QSystemLocale::DateTimeToStringLong` | `20` | converts the QDateTime in the in variant to a QString using the long datetime format
`QSystemLocale::DateTimeToStringShort` | `21` | converts the QDateTime in the in variant to a QString using the short datetime format
`QSystemLocale::MeasurementSystem` | `22` | a QLocale::MeasurementSystem enum specifying the measurement system

## Member Function Documentation

### QSystemLocale::QSystemLocale ()

Constructs a QSystemLocale object. The constructor will automatically install this object as the system locale and remove any earlier installed system locales.

### QSystemLocale::~QSystemLocale () `[virtual]`

Deletes the object.