QIODevice Class Reference

#include <qiodevice.h>

Class Description

Definition at line 66 of file qiodevice.h.

+ Inheritance diagram for QIODevice:

Public Types

enum  OpenModeFlag {
  NotOpen = 0x0000, ReadOnly = 0x0001, WriteOnly = 0x0002, ReadWrite = ReadOnly | WriteOnly,
  Append = 0x0004, Truncate = 0x0008, Text = 0x0010, Unbuffered = 0x0020
}
 

Signals

void readyRead ()
 
void bytesWritten (qint64 bytes)
 
void aboutToClose ()
 
void readChannelFinished ()
 
- Signals inherited from QObject
void destroyed (QObject *=0)
 

Public Member Functions

 QIODevice ()
 
 QIODevice (QObject *parent)
 
virtual ~QIODevice ()
 
OpenMode openMode () const
 
void setTextModeEnabled (bool enabled)
 
bool isTextModeEnabled () const
 
bool isOpen () const
 
bool isReadable () const
 
bool isWritable () const
 
virtual bool isSequential () const
 
virtual bool open (OpenMode mode)
 
virtual void close ()
 
virtual qint64 pos () const
 
virtual qint64 size () const
 
virtual bool seek (qint64 pos)
 
virtual bool atEnd () const
 
virtual bool reset ()
 
virtual qint64 bytesAvailable () const
 
virtual qint64 bytesToWrite () const
 
qint64 read (char *data, qint64 maxlen)
 
QByteArray read (qint64 maxlen)
 
QByteArray readAll ()
 
qint64 readLine (char *data, qint64 maxlen)
 
QByteArray readLine (qint64 maxlen=0)
 
virtual bool canReadLine () const
 
qint64 write (const char *data, qint64 len)
 
qint64 write (const char *data)
 
qint64 write (const QByteArray &data)
 
qint64 peek (char *data, qint64 maxlen)
 
QByteArray peek (qint64 maxlen)
 
virtual bool waitForReadyRead (int msecs)
 
virtual bool waitForBytesWritten (int msecs)
 
void ungetChar (char c)
 
bool putChar (char c)
 
bool getChar (char *c)
 
QString errorString () const
 
- Public Member Functions inherited from QObject
Q_INVOKABLE QObject (QObject *parent=0)
 
virtual ~QObject ()
 
virtual bool event (QEvent *)
 
virtual bool eventFilter (QObject *, QEvent *)
 
QString objectName () const
 
void setObjectName (const QString &name)
 
bool isWidgetType () const
 
bool signalsBlocked () const
 
bool blockSignals (bool b)
 
QThreadthread () const
 
void moveToThread (QThread *thread)
 
int startTimer (int interval)
 
void killTimer (int id)
 
template<typename T >
findChild (const QString &aName=QString()) const
 
template<typename T >
QList< T > findChildren (const QString &aName=QString()) const
 
template<typename T >
QList< T > findChildren (const QRegExp &re) const
 
const QObjectListchildren () const
 
void setParent (QObject *)
 
void installEventFilter (QObject *)
 
void removeEventFilter (QObject *)
 
bool connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const
 
bool disconnect (const char *signal=0, const QObject *receiver=0, const char *member=0)
 
bool disconnect (const QObject *receiver, const char *member=0)
 
void dumpObjectTree ()
 
void dumpObjectInfo ()
 
bool setProperty (const char *name, const QVariant &value)
 
QVariant property (const char *name) const
 
QList< QByteArraydynamicPropertyNames () const
 
void setUserData (uint id, QObjectUserData *data)
 
QObjectUserDatauserData (uint id) const
 
QObjectparent () const
 
bool inherits (const char *classname) const
 

Protected Member Functions

 QIODevice (QIODevicePrivate &dd, QObject *parent=0)
 
virtual qint64 readData (char *data, qint64 maxlen)=0
 
virtual qint64 readLineData (char *data, qint64 maxlen)
 
virtual qint64 writeData (const char *data, qint64 len)=0
 
void setOpenMode (OpenMode openMode)
 
void setErrorString (const QString &errorString)
 
- Protected Member Functions inherited from QObject
QObjectsender () const
 
int senderSignalIndex () const
 
int receivers (const char *signal) const
 
virtual void timerEvent (QTimerEvent *)
 
virtual void childEvent (QChildEvent *)
 
virtual void customEvent (QEvent *)
 
virtual void connectNotify (const char *signal)
 
virtual void disconnectNotify (const char *signal)
 
 QObject (QObjectPrivate &dd, QObject *parent=0)
 

Additional Inherited Members

- Public Slots inherited from QObject
void deleteLater ()
 
- Static Public Member Functions inherited from QObject
static bool connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection)
 
static bool connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)
 
static bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member)
 
static bool disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member)
 
static uint registerUserData ()
 
- Protected Attributes inherited from QObject
QScopedPointer< QObjectDatad_ptr
 
- Static Protected Attributes inherited from QObject
static const QMetaObject staticQtMetaObject
 
- Properties inherited from QObject
QString objectName
 

Member Enumeration Documentation

Enumerator
NotOpen 
ReadOnly 
WriteOnly 
ReadWrite 
Append 
Truncate 
Text 
Unbuffered 

Definition at line 75 of file qiodevice.h.

75  {
76  NotOpen = 0x0000,
77  ReadOnly = 0x0001,
78  WriteOnly = 0x0002,
80  Append = 0x0004,
81  Truncate = 0x0008,
82  Text = 0x0010,
83  Unbuffered = 0x0020
84  };

Constructor & Destructor Documentation

QIODevice ( )
QIODevice ( QObject parent)
explicit
virtual ~QIODevice ( )
virtual
QIODevice ( QIODevicePrivate &  dd,
QObject parent = 0 
)
protected

Member Function Documentation

OpenMode openMode ( ) const
void setTextModeEnabled ( bool  enabled)
bool isTextModeEnabled ( ) const
bool isOpen ( ) const
bool isReadable ( ) const
bool isWritable ( ) const
virtual bool isSequential ( ) const
virtual
virtual bool open ( OpenMode  mode)
virtual

Reimplemented in QFile, QTemporaryFile, and QBuffer.

virtual void close ( )
virtual
virtual qint64 pos ( ) const
virtual

Reimplemented in QFile, and QBuffer.

virtual qint64 size ( ) const
virtual

Reimplemented in QFile, and QBuffer.

virtual bool seek ( qint64  pos)
virtual

Reimplemented in QAuthDevice, QFile, and QBuffer.

virtual bool atEnd ( ) const
virtual
virtual bool reset ( )
virtual
virtual qint64 bytesAvailable ( ) const
virtual
virtual qint64 bytesToWrite ( ) const
virtual
qint64 read ( char *  data,
qint64  maxlen 
)
QByteArray read ( qint64  maxlen)
QByteArray readAll ( )
qint64 readLine ( char *  data,
qint64  maxlen 
)
QByteArray readLine ( qint64  maxlen = 0)
virtual bool canReadLine ( ) const
virtual
qint64 write ( const char *  data,
qint64  len 
)
qint64 write ( const char *  data)
qint64 write ( const QByteArray data)
inline

Definition at line 126 of file qiodevice.h.

127  { return write(data.constData(), data.size()); }
const char * constData() const
Definition: qbytearray.h:433
int size() const
Definition: qbytearray.h:402
qint64 write(const char *data, qint64 len)
qint64 peek ( char *  data,
qint64  maxlen 
)
QByteArray peek ( qint64  maxlen)
virtual bool waitForReadyRead ( int  msecs)
virtual

Reimplemented in QAbstractSocket, QProcess, QSslSocket, and QLocalSocket.

virtual bool waitForBytesWritten ( int  msecs)
virtual

Reimplemented in QAbstractSocket, QProcess, QSslSocket, and QLocalSocket.

void ungetChar ( char  c)
bool putChar ( char  c)
bool getChar ( char *  c)
QString errorString ( ) const
void readyRead ( )
signal
void bytesWritten ( qint64  bytes)
signal
void aboutToClose ( )
signal
void readChannelFinished ( )
signal
virtual qint64 readData ( char *  data,
qint64  maxlen 
)
protectedpure virtual
virtual qint64 readLineData ( char *  data,
qint64  maxlen 
)
protectedvirtual

Reimplemented in QFile, and QAbstractSocket.

virtual qint64 writeData ( const char *  data,
qint64  len 
)
protectedpure virtual
void setOpenMode ( OpenMode  openMode)
protected
void setErrorString ( const QString errorString)
protected

The documentation for this class was generated from the following file: