Qt 3 Support Members for QSettingsThe following class members are part of the Qt 3 support layer. They are provided to help you port old code to Qt 4. We advise against using them in new code. Public Types
Public Functions
Member Type Documentationenum QSettings::System
See also insertSearchPath() and removeSearchPath(). Member Function DocumentationQStringList QSettings::entryList ( const QString & key ) constReturns a list of all sub-keys of key. Use childKeys() instead. For example, if you have code like QSettings settings; QStringList keys = settings.entryList("cities"); ... you can rewrite it as QSettings settings; settings.beginGroup("cities"); QStringList keys = settings.childKeys(); ... settings.endGroup(); void QSettings::insertSearchPath ( System system, const QString & path )This function is implemented as a no-op. It is provided for source compatibility with Qt 3. The new QSettings class has no concept of "search path". bool QSettings::readBoolEntry ( const QString & key, bool defaultValue = false, bool * ok = 0 )Returns the value for setting key converted to a bool. If the setting doesn't exist, returns defaultValue. If ok is not 0, *ok is set to true if the key exists, otherwise *ok is set to false. Use value() instead. For example, if you have code like bool ok; bool grid = settings.readBoolEntry("showGrid", true, &ok); you can rewrite it as bool ok = settings.contains("showGrid"); bool grid = settings.value("showGrid", true).toBool(); double QSettings::readDoubleEntry ( const QString & key, double defaultValue = 0, bool * ok = 0 )Returns the value for setting key converted to a double. If the setting doesn't exist, returns defaultValue. If ok is not 0, *ok is set to true if the key exists, otherwise *ok is set to false. Use value() instead. For example, if you have code like bool ok; double pi = settings.readDoubleEntry("pi", 3.141592, &ok); you can rewrite it as bool ok = settings.contains("pi"); double pi = settings.value("pi", 3.141592).toDouble(); QString QSettings::readEntry ( const QString & key, const QString & defaultValue = QString(), bool * ok = 0 )Returns the value for setting key converted to a QString. If the setting doesn't exist, returns defaultValue. If ok is not 0, *ok is set to true if the key exists, otherwise *ok is set to false. Use value() instead. For example, if you have code like bool ok; QString str = settings.readEntry("userName", "administrator", &ok); you can rewrite it as bool ok = settings.contains("userName"); QString str = settings.value("userName", "administrator").toString(); QStringList QSettings::readListEntry ( const QString & key, bool * ok = 0 )Returns the value of setting key converted to a QStringList. If ok is not 0, *ok is set to true if the key exists, otherwise *ok is set to false. Use value() instead. For example, if you have code like bool ok; QStringList list = settings.readListEntry("recentFiles", &ok); you can rewrite it as bool ok = settings.contains("recentFiles"); QStringList list = settings.value("recentFiles").toStringList(); QStringList QSettings::readListEntry ( const QString & key, QChar separator, bool * ok = 0 )This is an overloaded member function, provided for convenience. Returns the value of setting key converted to a QStringList. separator is ignored. If ok is not 0, *ok is set to true if the key exists, otherwise *ok is set to false. Use value() instead. For example, if you have code like bool ok; QStringList list = settings.readListEntry("recentFiles", ":", &ok); you can rewrite it as bool ok = settings.contains("recentFiles"); QStringList list = settings.value("recentFiles").toStringList(); int QSettings::readNumEntry ( const QString & key, int defaultValue = 0, bool * ok = 0 )Returns the value for setting key converted to an int. If the setting doesn't exist, returns defaultValue. If ok is not 0, *ok is set to true if the key exists, otherwise *ok is set to false. Use value() instead. For example, if you have code like bool ok; int max = settings.readNumEntry("maxConnections", 30, &ok); you can rewrite it as bool ok = settings.contains("maxConnections"); int max = settings.value("maxConnections", 30).toInt(); bool QSettings::removeEntry ( const QString & key )Use remove() instead. void QSettings::removeSearchPath ( System system, const QString & path )This function is implemented as a no-op. It is provided for source compatibility with Qt 3. The new QSettings class has no concept of "search path". void QSettings::resetGroup ()Sets the current group to be the empty string. Use endGroup() instead (possibly multiple times). For example, if you have code like QSettings settings; settings.beginGroup("mainWindow"); settings.beginGroup("leftPanel"); ... settings.resetGroup(); you can rewrite it as QSettings settings; settings.beginGroup("mainWindow"); settings.beginGroup("leftPanel"); ... settings.endGroup(); settings.endGroup(); void QSettings::setPath ( const QString & organization, const QString & application, Scope scope = Global )This is an overloaded member function, provided for convenience. Specifies the organization, application, and scope to use by the QSettings object. Use the appropriate constructor instead, with QSettings::UserScope instead of QSettings::User and QSettings::SystemScope instead of QSettings::Global. For example, if you have code like QSettings settings; settings.setPath("twikimaster.com", "Kanooth", QSettings::Global); you can rewrite it as QSettings settings(QSettings::SystemScope, "twikimaster.com", "Kanooth"); QStringList QSettings::subkeyList ( const QString & key ) constReturns a list of all sub-keys of key. Use childGroups() instead. For example, if you have code like QSettings settings; QStringList groups = settings.entryList("cities"); ... you can rewrite it as QSettings settings; settings.beginGroup("cities"); QStringList groups = settings.childKeys(); ... settings.endGroup(); bool QSettings::writeEntry ( const QString & key, bool value )Sets the value of setting key to value. Use setValue() instead. bool QSettings::writeEntry ( const QString & key, double value )This is an overloaded member function, provided for convenience. bool QSettings::writeEntry ( const QString & key, int value )This is an overloaded member function, provided for convenience. bool QSettings::writeEntry ( const QString & key, const char * value )This is an overloaded member function, provided for convenience. bool QSettings::writeEntry ( const QString & key, const QString & value )This is an overloaded member function, provided for convenience. bool QSettings::writeEntry ( const QString & key, const QStringList & value )This is an overloaded member function, provided for convenience. bool QSettings::writeEntry ( const QString & key, const QStringList & value, QChar separator )This is an overloaded member function, provided for convenience. Use setValue(key, value) instead. You don't need separator.
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