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Input/Output and Networking

These classes are used to handle input and output to and from external devices, processes, files etc. as well as manipulating files and directories.

QAbstractSocketThe base functionality common to all socket types
QBufferQIODevice interface for a QByteArray
QClipboardAccess to the window system clipboard
QDataStreamSerialization of binary data to a QIODevice
QDirAccess to directory structures and their contents
QDnsStatic functions for host name lookups
QDnsHostInfoInformation about a host name lookup
QFileI/O device that operates on files
QFileEngineAbstraction for accessing the filesystem
QFileEngineHandlerAllows custom QFileEngines to be plugged into Qt
QFileInfoSystem-independent file information
QFtpImplementation of the FTP protocol
QHostAddressIP address
QHttpImplementation of the HTTP protocol
QHttpHeaderHeader information for HTTP
QHttpRequestHeaderRequest header information for HTTP
QHttpResponseHeaderResponse header information for HTTP
QIODeviceThe base interface class of all I/O devices in Qt
QImageIOParameters for loading and saving images
QLockWrapper for a System V shared semaphore
QMacMimeMaps open-standard MIME to Mac flavors
QMetaResourceUsed to create QResource's from supplied data
QPictureIOParameters for loading and saving pictures
QProcessUsed to start external programs and to communicate with them
QResourceAccess to application resource data
QSettingsPersistent platform-independent application settings
QSignalCan be used to send signals for classes that do not inherit QObject
QSignalMapperBundles signals from identifiable senders
QSocketLayerLow level access to a socket
QSocketNotifierSupport for socket callbacks
QTcpServerTCP-based server
QTcpSocketTCP socket
QTemporaryFileI/O device that operates on temporary files
QTextIStreamConvenience class for input streams
QTextOStreamConvenience class for output streams
QTextStreamFunctions for reading and writing text using a QIODevice
QUdpSocketUDP socket
QUrlConvenient interface for working with URLs
QUrlInfoStores information about URLs
QWindowsMimeMaps open-standard MIME to Window Clipboard formats


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Qt 4.0.0-b1