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These classes are used to handle input and output to and from external devices, processes, files etc. as well as manipulating files and directories.
| QBuffer | I/O device that operates on a QByteArray |
| QClipboard | Access to the window system clipboard |
| QDataStream | Serialization of binary data to a QIODevice |
| QDir | Access to directory structures and their contents in a platform-independent way |
| QDns | Asynchronous DNS lookups |
| QFile | I/O device that operates on files |
| QFileInfo | System-independent file information |
| QFtp | Implementation of the FTP protocol |
| QHostAddress | IP address |
| QHttp | Implementation of the HTTP protocol |
| QHttpHeader | Header information for HTTP |
| QHttpRequestHeader | Request header information for HTTP |
| QHttpResponseHeader | Response header information for HTTP |
| QImageIO | Parameters for loading and saving images |
| QIODevice | The base class of I/O devices |
| QLocalFs | Implementation of a QNetworkProtocol that works on the local file system |
| QMimeSource | Abstraction of objects which provide formatted data of a certain MIME type |
| QMimeSourceFactory | Extensible provider of mime-typed data |
| QNetworkOperation | Common operations for network protocols |
| QNetworkProtocol | Common API for network protocols |
| QProcess | Used to start external programs and to communicate with them |
| QServerSocket | TCP-based server |
| QSettings | Persistent platform-independent application settings |
| QSignal | Can be used to send signals for classes that don't inherit QObject |
| QSignalMapper | Bundles signals from identifiable senders |
| QSocket | Buffered TCP connection |
| QSocketDevice | Platform-independent low-level socket API |
| QSocketNotifier | Support for socket callbacks |
| QTextIStream | Convenience class for input streams |
| QTextOStream | Convenience class for output streams |
| QTextStream | Basic functions for reading and writing text using a QIODevice |
| QUrl | URL parser and simplifies working with URLs |
| QUrlInfo | Stores information about URLs |
| QUrlOperator | Common operations on URLs |
| QWindowsMime | Maps open-standard MIME to Window Clipboard formats |
| Copyright © 2003 Trolltech | Trademarks | Qt version 3.1.2
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