These classes providing various global services to your application such as event handling, access to system settings, internationalization, etc.
QClipboard | The QClipboard class provides access to the window system clipboard. |
QDesktopWidget | The QDesktopWidget class provides access to screen information on multi-head systems. |
QEvent | The QEvent class is the base class of all event classes. Event objects contain event parameters. |
QFontDatabase | The QFontDatabase class provides information about the fonts available in the underlying window system. |
QMutex | The QMutex class provides access serialization between threads. |
QMutexLocker | The QMutexLocker class is a convenience class that simplifies locking and unlocking mutexes. |
QPixmapCache | The QPixmapCache class provides an application-wide cache for pixmaps. |
QReadLocker | The QReadLocker class is a convenience class that simplifies locking and unlocking read-write locks for read access. |
QReadWriteLock | The QReadWriteLock class provides read-write locking. |
QSemaphore | The QSemaphore class provides a general counting semaphore. |
QSessionManager | The QSessionManager class provides access to the session manager. |
QThread | The QThread class provides platform-independent threads. |
QThreadStorage | The QThreadStorage class provides per-thread data storage. |
QTranslator | The QTranslator class provides internationalization support for text output. |
QWaitCondition | The QWaitCondition class provides a condition variable for synchronizing threads. |
QWriteLocker | The QWriteLocker class is a convenience class that simplifies locking and unlocking read-write locks for write access. |