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These classes providing various global services to your application such as event handling, access to system settings, internationalization, etc.
| TQClipboard | Access to the window system clipboard | 
| TQDesktopWidget | Access to screen information on multi-head systems | 
| TQEvent | The base class of all event classes. Event objects contain event parameters | 
| TQFontDatabase | Information about the fonts available in the underlying window system | 
| TQMimeSourceFactory | Extensible provider of mime-typed data | 
| TQMutex | Access serialization between threads | 
| TQMutexLocker | Simplifies locking and unlocking TQMutexes | 
| TQPixmapCache | Application-global cache for pixmaps | 
| TQSemaphore | Robust integer semaphore | 
| TQSessionManager | Access to the session manager | 
| TQThread | Platform-independent threads | 
| TQThreadStorage | Per-thread data storage | 
| TQTranslator | Internationalization support for text output | 
| TQTranslatorMessage | Translator message and its properties | 
| TQWaitCondition | Allows waiting/waking for conditions between threads | 
| Copyright © 2007 Trolltech | Trademarks | TQt 3.3.8 |