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Environment Classes

These classes providing various global services to your application such as event handling, access to system settings, internationalization, etc.

QClipboardThe QClipboard class provides access to the window system clipboard.
QDesktopWidgetThe QDesktopWidget class provides access to screen information on multi-head systems.
QEventThe QEvent class is the base class of all event classes. Event objects contain event parameters.
QFontDatabaseThe QFontDatabase class provides information about the fonts available in the underlying window system.
QMutexThe QMutex class provides access serialization between threads.
QMutexLockerThe QMutexLocker class is a convenience class that simplifies locking and unlocking mutexes.
QPixmapCacheThe QPixmapCache class provides an application-wide cache for pixmaps.
QReadLockerThe QReadLocker class is a convenience class that simplifies locking and unlocking read-write locks for read access.
QReadWriteLockThe QReadWriteLock class provides read-write locking.
QSemaphoreThe QSemaphore class provides a general counting semaphore.
QSessionManagerThe QSessionManager class provides access to the session manager.
QThreadThe QThread class provides platform-independent threads.
QThreadStorageThe QThreadStorage class provides per-thread data storage.
QTranslatorThe QTranslator class provides internationalization support for text output.
QWaitConditionThe QWaitCondition class provides a condition variable for synchronizing threads.
QWriteLockerThe QWriteLocker class is a convenience class that simplifies locking and unlocking read-write locks for write access.


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Qt 4.3.0beta