You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
210 lines
7.4 KiB
210 lines
7.4 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
|
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/include/qiodevice.h:1 -->
|
|
<html>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
|
<title>qiodevice.h Include File</title>
|
|
<style type="text/css"><!--
|
|
fn { margin-left: 1cm; text-indent: -1cm; }
|
|
a:link { color: #004faf; text-decoration: none }
|
|
a:visited { color: #672967; text-decoration: none }
|
|
body { background: #ffffff; color: black; }
|
|
--></style>
|
|
</head>
|
|
<body>
|
|
|
|
<table border="0" cellpadding="0" cellspacing="0" width="100%">
|
|
<tr bgcolor="#E5E5E5">
|
|
<td valign=center>
|
|
<a href="index.html">
|
|
<font color="#004faf">Home</font></a>
|
|
| <a href="classes.html">
|
|
<font color="#004faf">All Classes</font></a>
|
|
| <a href="mainclasses.html">
|
|
<font color="#004faf">Main Classes</font></a>
|
|
| <a href="annotated.html">
|
|
<font color="#004faf">Annotated</font></a>
|
|
| <a href="groups.html">
|
|
<font color="#004faf">Grouped Classes</font></a>
|
|
| <a href="functions.html">
|
|
<font color="#004faf">Functions</font></a>
|
|
</td>
|
|
<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>qiodevice.h</h1>
|
|
|
|
<p>This is the verbatim text of the qiodevice.h include file. It is provided only for illustration; the copyright remains with Trolltech.
|
|
<hr>
|
|
<pre>
|
|
/****************************************************************************
|
|
** $Id: qt/qiodevice.h 3.3.8 edited Jan 11 14:38 $
|
|
**
|
|
** Definition of QIODevice class
|
|
**
|
|
** Created : 940913
|
|
**
|
|
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
|
|
**
|
|
** This file is part of the tools module of the Qt GUI Toolkit.
|
|
**
|
|
** This file may be used under the terms of the GNU General Public
|
|
** License versions 2.0 or 3.0 as published by the Free Software
|
|
** Foundation and appearing in the file LICENSE.GPL included in the
|
|
** packaging of this file. Alternatively you may (at your option) use any
|
|
** later version of the GNU General Public License if such license has
|
|
** been publicly approved by Trolltech ASA (or its successors, if any)
|
|
** and the KDE Free Qt Foundation.
|
|
**
|
|
** Please review the following information to ensure GNU General
|
|
** Public Licensing requirements will be met:
|
|
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
|
|
** If you are unsure which license is appropriate for your use, please
|
|
** review the following information:
|
|
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
|
|
** or contact the sales department at sales@trolltech.com.
|
|
**
|
|
** This file may be used under the terms of the Q Public License as
|
|
** defined by Trolltech ASA and appearing in the file LICENSE.QPL
|
|
** included in the packaging of this file. Licensees holding valid Qt
|
|
** Commercial licenses may use this file in accordance with the Qt
|
|
** Commercial License Agreement provided with the Software.
|
|
**
|
|
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
|
|
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
|
|
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
|
|
** herein.
|
|
**
|
|
**********************************************************************/
|
|
|
|
#ifndef QIODEVICE_H
|
|
#define QIODEVICE_H
|
|
|
|
#ifndef QT_H
|
|
#include "qglobal.h"
|
|
#include "qcstring.h"
|
|
#endif // QT_H
|
|
|
|
|
|
// IO device access types
|
|
|
|
#define IO_Direct 0x0100 // direct access device
|
|
#define IO_Sequential 0x0200 // sequential access device
|
|
#define IO_Combined 0x0300 // combined direct/sequential
|
|
#define IO_TypeMask 0x0f00
|
|
|
|
// IO handling modes
|
|
|
|
#define IO_Raw 0x0040 // raw access (not buffered)
|
|
#define IO_Async 0x0080 // asynchronous mode
|
|
|
|
// IO device open modes
|
|
|
|
#define IO_ReadOnly 0x0001 // readable device
|
|
#define IO_WriteOnly 0x0002 // writable device
|
|
#define IO_ReadWrite 0x0003 // read+write device
|
|
#define IO_Append 0x0004 // append
|
|
#define IO_Truncate 0x0008 // truncate device
|
|
#define IO_Translate 0x0010 // translate CR+LF
|
|
#define IO_ModeMask 0x00ff
|
|
|
|
// IO device state
|
|
|
|
#define IO_Open 0x1000 // device is open
|
|
#define IO_StateMask 0xf000
|
|
|
|
// IO device status
|
|
|
|
#define IO_Ok 0
|
|
#define IO_ReadError 1 // read error
|
|
#define IO_WriteError 2 // write error
|
|
#define IO_FatalError 3 // fatal unrecoverable error
|
|
#define IO_ResourceError 4 // resource limitation
|
|
#define IO_OpenError 5 // cannot open device
|
|
#define IO_ConnectError 5 // cannot connect to device
|
|
#define IO_AbortError 6 // abort error
|
|
#define IO_TimeOutError 7 // time out
|
|
#define IO_UnspecifiedError 8 // unspecified error
|
|
|
|
|
|
class Q_EXPORT QIODevice
|
|
{
|
|
public:
|
|
#if defined(QT_ABI_QT4)
|
|
typedef Q_LLONG Offset;
|
|
#else
|
|
typedef Q_ULONG Offset;
|
|
#endif
|
|
|
|
QIODevice();
|
|
virtual ~QIODevice();
|
|
|
|
int flags() const { return ioMode; }
|
|
int mode() const { return ioMode & IO_ModeMask; }
|
|
int state() const { return ioMode & IO_StateMask; }
|
|
|
|
bool isDirectAccess() const { return ((ioMode & IO_Direct) == IO_Direct); }
|
|
bool isSequentialAccess() const { return ((ioMode & IO_Sequential) == IO_Sequential); }
|
|
bool isCombinedAccess() const { return ((ioMode & IO_Combined) == IO_Combined); }
|
|
bool isBuffered() const { return ((ioMode & IO_Raw) != IO_Raw); }
|
|
bool isRaw() const { return ((ioMode & IO_Raw) == IO_Raw); }
|
|
bool isSynchronous() const { return ((ioMode & IO_Async) != IO_Async); }
|
|
bool isAsynchronous() const { return ((ioMode & IO_Async) == IO_Async); }
|
|
bool isTranslated() const { return ((ioMode & IO_Translate) == IO_Translate); }
|
|
bool isReadable() const { return ((ioMode & IO_ReadOnly) == IO_ReadOnly); }
|
|
bool isWritable() const { return ((ioMode & IO_WriteOnly) == IO_WriteOnly); }
|
|
bool isReadWrite() const { return ((ioMode & IO_ReadWrite) == IO_ReadWrite); }
|
|
bool isInactive() const { return state() == 0; }
|
|
bool isOpen() const { return state() == IO_Open; }
|
|
|
|
int status() const { return ioSt; }
|
|
void resetStatus() { ioSt = IO_Ok; }
|
|
|
|
virtual bool open( int mode ) = 0;
|
|
virtual void close() = 0;
|
|
virtual void flush() = 0;
|
|
|
|
virtual Offset size() const = 0;
|
|
virtual Offset at() const;
|
|
virtual bool at( Offset );
|
|
virtual bool atEnd() const;
|
|
bool reset() { return at(0); }
|
|
|
|
virtual Q_LONG readBlock( char *data, Q_ULONG maxlen ) = 0;
|
|
virtual Q_LONG writeBlock( const char *data, Q_ULONG len ) = 0;
|
|
virtual Q_LONG readLine( char *data, Q_ULONG maxlen );
|
|
Q_LONG writeBlock( const QByteArray& data );
|
|
virtual QByteArray readAll();
|
|
|
|
virtual int getch() = 0;
|
|
virtual int putch( int ) = 0;
|
|
virtual int ungetch( int ) = 0;
|
|
|
|
protected:
|
|
void setFlags( int f ) { ioMode = f; }
|
|
void setType( int );
|
|
void setMode( int );
|
|
void setState( int );
|
|
void setStatus( int );
|
|
Offset ioIndex;
|
|
|
|
private:
|
|
int ioMode;
|
|
int ioSt;
|
|
|
|
private: // Disabled copy constructor and operator=
|
|
#if defined(Q_DISABLE_COPY)
|
|
QIODevice( const QIODevice & );
|
|
QIODevice &operator=( const QIODevice & );
|
|
#endif
|
|
};
|
|
|
|
|
|
#endif // QIODEVICE_H
|
|
</pre>
|
|
<!-- eof -->
|
|
<p><address><hr><div align=center>
|
|
<table width=100% cellspacing=0 border=0><tr>
|
|
<td>Copyright © 2007
|
|
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
|
<td align=right><div align=right>Qt 3.3.8</div>
|
|
</table></div></address></body>
|
|
</html>
|