<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- io.qdoc -->
<title>Input/Output and Networking | Qt Core 5.9</title>
<link rel="stylesheet" type="text/css" href="style/offline-simple.css" />
<script type="text/javascript">
document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css");
// loading style sheet breaks anchors that were jumped to before
// so force jumping to anchor again
setTimeout(function() {
var anchor = location.hash;
// need to jump to different anchor first (e.g. none)
location.hash = "#";
setTimeout(function() {
location.hash = anchor;
}, 0);
}, 0);
</script>
</head>
<body>
<div class="header" id="qtdocheader">
<div class="main">
<div class="main-rounded">
<div class="navigationbar">
<table><tr>
<td >Qt 5.9</td><td ><a href="qtcore-index.html">Qt Core</a></td><td >Input/Output and Networking</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
</tr></table>
</div>
</div>
<div class="content">
<div class="line">
<div class="content mainContent">
<div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div>
<h1 class="title">Input/Output and Networking</h1>
<span class="subtitle"></span>
<!-- $$$io-description -->
<div class="descr"> <a name="details"></a>
<p>These <a href="qtcore-index.html">Qt Core</a> classes are used to handle input and output to and from external devices, processes, files etc. as well as manipulating files and directories.</p>
</div>
<!-- @@@io -->
<div class="table"><table class="annotated">
<tr class="odd topAlign"><td class="tblName"><p><a href="qbuffer.html">QBuffer</a></p></td><td class="tblDescr"><p>QIODevice interface for a QByteArray</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qdatastream.html">QDataStream</a></p></td><td class="tblDescr"><p>Serialization of binary data to a QIODevice</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qdir.html">QDir</a></p></td><td class="tblDescr"><p>Access to directory structures and their contents</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qfile.html">QFile</a></p></td><td class="tblDescr"><p>Interface for reading from and writing to files</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qfiledevice.html">QFileDevice</a></p></td><td class="tblDescr"><p>Interface for reading from and writing to open files</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qfileinfo.html">QFileInfo</a></p></td><td class="tblDescr"><p>System-independent file information</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qfilesystemwatcher.html">QFileSystemWatcher</a></p></td><td class="tblDescr"><p>Interface for monitoring files and directories for modifications</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qiodevice.html">QIODevice</a></p></td><td class="tblDescr"><p>The base interface class of all I/O devices in Qt</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qprocess.html">QProcess</a></p></td><td class="tblDescr"><p>Used to start external programs and to communicate with them</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qprocessenvironment.html">QProcessEnvironment</a></p></td><td class="tblDescr"><p>Holds the environment variables that can be passed to a program</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qresource.html">QResource</a></p></td><td class="tblDescr"><p>Interface for reading directly from resources</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qsavefile.html">QSaveFile</a></p></td><td class="tblDescr"><p>Interface for safely writing to files</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qsettings.html">QSettings</a></p></td><td class="tblDescr"><p>Persistent platform-independent application settings</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qstorageinfo.html">QStorageInfo</a></p></td><td class="tblDescr"><p>Provides information about currently mounted storage and drives</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qtemporarydir.html">QTemporaryDir</a></p></td><td class="tblDescr"><p>Creates a unique directory for temporary use</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qtemporaryfile.html">QTemporaryFile</a></p></td><td class="tblDescr"><p>I/O device that operates on temporary files</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qtextstream.html">QTextStream</a></p></td><td class="tblDescr"><p>Convenient interface for reading and writing text</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qurl.html">QUrl</a></p></td><td class="tblDescr"><p>Convenient interface for working with URLs</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="qurlquery.html">QUrlQuery</a></p></td><td class="tblDescr"><p>Way to manipulate a key-value pairs in a URL's query</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="qsocketnotifier.html">QSocketNotifier</a></p></td><td class="tblDescr"><p>Support for monitoring activity on a file descriptor</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="../qtgui/qimagereader.html">QImageReader</a></p></td><td class="tblDescr"><p>Format independent interface for reading images from files or other devices</p></td></tr>
<tr class="even topAlign"><td class="tblName"><p><a href="../qtgui/qimagewriter.html">QImageWriter</a></p></td><td class="tblDescr"><p>Format independent interface for writing images to files or other devices</p></td></tr>
<tr class="odd topAlign"><td class="tblName"><p><a href="../qtgui/qtextdocumentwriter.html">QTextDocumentWriter</a></p></td><td class="tblDescr"><p>Format-independent interface for writing a QTextDocument to files or other devices</p></td></tr>
</table></div>
</div>
</div>
</div>
</div>
</div>
<div class="footer">
<p>
<acronym title="Copyright">©</acronym> 2017 The Qt Company Ltd.
Documentation contributions included herein are the copyrights of
their respective owners.<br> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property
of their respective owners. </p>
</div>
</body>
</html>
distrib
>
Mageia
>
6
>
armv5tl
>
media
>
core-updates
>
by-pkgid
>
768f7d9f703884aa2562bf0a651086df
>
files
>
254
