QFile

#include <QtCore/QFile>

More information will be added here shortly. For now, you'll find more extensive information about this class in the Qt reference for QFile

Overview

Inheritance

QIODevice
	QFile
		QTemporaryFile

enum Permission

ReadOwner 0x4000, WriteOwner 0x2000, ExeOwner 0x1000, ReadUser 0x0400, WriteUser 0x0200, ExeUser 0x0100, ReadGroup 0x0040, WriteGroup 0x0020, ExeGroup 0x0010, ReadOther 0x0004, WriteOther 0x0002, ExeOther 0x0001

enum OpenModeFlag

NotOpen 0x0000, ReadOnly 0x0001, WriteOnly 0x0002, ReadWrite ReadOnly | WriteOnly, Append 0x0004, Truncate 0x0008, Text 0x0010, Unbuffered 0x0020

Public Functions Index

	QFile ()
	QFile (const QString &name)
	QFile (QObject *parent)
	QFile (const QString &name, QObject *parent)
	~QFile ()
virtual bool	atEnd () const
virtual void	close ()
bool	copy (const QString &newName)
FileError	error () const
bool	exists () const
virtual QAbstractFileEngine *	fileEngine () const
QString	fileName () const
bool	flush ()
int	handle () const
virtual bool	isSequential () const
bool	link (const QString &newName)
uchar *	map (qint64 offset, qint64 size, MemoryMapFlags flags=NoOptions)
virtual bool	open (OpenMode flags)
bool	open (FILE *f, OpenMode flags)
bool	open (int fd, OpenMode flags)
bool	open (FILE *f, OpenMode ioFlags, FileHandleFlags handleFlags)
bool	open (int fd, OpenMode ioFlags, FileHandleFlags handleFlags)
Permissions	permissions () const
virtual qint64	pos () const
QString	readLink () const
bool	remove ()
bool	rename (const QString &newName)
bool	resize (qint64 sz)
virtual bool	seek (qint64 offset)
void	setFileName (const QString &name)
bool	setPermissions (Permissions permissionSpec)
virtual qint64	size () const
QString	symLinkTarget () const
bool	unmap (uchar *address)
void	unsetError ()
virtual qint64	bytesAvailable () const
virtual qint64	bytesToWrite () const
virtual bool	canReadLine () const
QString	errorString () const
bool	getChar (char *c)
bool	isOpen () const
bool	isReadable () const
bool	isTextModeEnabled () const
bool	isWritable () const
OpenMode	openMode () const
qint64	peek (char *data, qint64 maxlen)
QByteArray	peek (qint64 maxlen)
bool	putChar (char c)
	QIODevice ()
	QIODevice (QObject *parent)
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	reset ()
void	setTextModeEnabled (bool enabled)
void	ungetChar (char c)
virtual bool	waitForBytesWritten (int msecs)
virtual bool	waitForReadyRead (int msecs)
qint64	write (const char *data, qint64 len)
qint64	write (const char *data)
qint64	write (const QByteArray &data)

Static Public Functions Index

bool	copy (const QString &fileName, const QString &newName)
QString	decodeName (const QByteArray &localFileName)
QString	decodeName (const char *localFileName)
QByteArray	encodeName (const QString &fileName)
bool	exists (const QString &fileName)
bool	link (const QString &oldname, const QString &newName)
Permissions	permissions (const QString &filename)
QString	readLink (const QString &fileName)
bool	remove (const QString &fileName)
bool	rename (const QString &oldName, const QString &newName)
bool	resize (const QString &filename, qint64 sz)
void	setDecodingFunction (DecoderFn)
void	setEncodingFunction (EncoderFn)
bool	setPermissions (const QString &filename, Permissions permissionSpec)
QString	symLinkTarget (const QString &fileName)

Protected Functions Index

	QFile (QFilePrivate &dd, QObject *parent=0)
virtual qint64	readData (char *data, qint64 maxlen)
virtual qint64	readLineData (char *data, qint64 maxlen)
virtual qint64	writeData (const char *data, qint64 len)
	QIODevice (QIODevicePrivate &dd, QObject *parent=0)
void	setErrorString (const QString &errorString)
void	setOpenMode (OpenMode openMode)

Signals Index

Only has inherited signals

void	aboutToClose ()
void	bytesWritten (qint64 bytes)
void	readChannelFinished ()
void	readyRead ()

Public Types

typedef QString(* DecoderFn

typedef QByteArray(* EncoderFn

FileError

NoError 0
ReadError 1
WriteError 2
FatalError 3
ResourceError 4
OpenError 5
AbortError 6
TimeOutError 7
UnspecifiedError 8
RemoveError 9
RenameError 10
PositionError 11
ResizeError 12
PermissionsError 13
CopyError 14

FileHandleFlag

AutoCloseHandle 0x0001
DontCloseHandle 0

MemoryMapFlags

NoOptions 0

Permission

ReadOwner 0x4000
WriteOwner 0x2000
ExeOwner 0x1000
ReadUser 0x0400
WriteUser 0x0200
ExeUser 0x0100
ReadGroup 0x0040
WriteGroup 0x0020
ExeGroup 0x0010
ReadOther 0x0004
WriteOther 0x0002
ExeOther 0x0001

OpenModeFlag

NotOpen 0x0000
ReadOnly 0x0001
WriteOnly 0x0002
ReadWrite ReadOnly | WriteOnly
Append 0x0004
Truncate 0x0008
Text 0x0010
Unbuffered 0x0020

Public Functions

QFile ()

QFile (
const QString &name)

QFile (
QObject *parent)

QFile (
const QString &name,
QObject *parent )

~QFile ()

Destructor.

virtual bool atEnd ()

virtual void close ()

bool copy (
const QString &newName)

FileError error ()

bool exists ()

virtualQAbstractFileEngine * fileEngine ()

QString fileName ()

bool flush ()

int handle ()

virtual bool isSequential ()

bool link (
const QString &newName)

uchar * map (
qint64offset,
qint64size,
MemoryMapFlagsflags )

virtual bool open (
OpenModeflags)

bool open (
FILE *f,
OpenModeflags )

bool open (
intfd,
OpenModeflags )

bool open (
FILE *f,
OpenModeioFlags,
FileHandleFlagshandleFlags )

bool open (
intfd,
OpenModeioFlags,
FileHandleFlagshandleFlags )

Permissions permissions ()

virtual qint64 pos ()

QString readLink ()

bool remove ()

bool rename (
const QString &newName)

bool resize (
qint64sz)

virtual bool seek (
qint64offset)

void setFileName (
const QString &name)

bool setPermissions (
PermissionspermissionSpec)

virtual qint64 size ()

QString symLinkTarget ()

bool unmap (
uchar *address)

void unsetError ()

virtual qint64 bytesAvailable ()

virtual qint64 bytesToWrite ()

virtual bool canReadLine ()

QString errorString ()

bool getChar (
char *c)

bool isOpen ()

bool isReadable ()

bool isTextModeEnabled ()

bool isWritable ()

OpenMode openMode ()

qint64 peek (
char *data,
qint64maxlen )

QByteArray peek (
qint64maxlen)

bool putChar (
charc)

QIODevice ()

QIODevice (
QObject *parent)

qint64 read (
char *data,
qint64maxlen )

QByteArray read (
qint64maxlen)

QByteArray readAll ()

qint64 readLine (
char *data,
qint64maxlen )

QByteArray readLine (
qint64maxlen)

virtual bool reset ()

void setTextModeEnabled (
boolenabled)

void ungetChar (
charc)

virtual bool waitForBytesWritten (
intmsecs)

virtual bool waitForReadyRead (
intmsecs)

qint64 write (
const char *data,
qint64len )

qint64 write (
const char *data)

qint64 write (
const QByteArray &data)

Static Public Functions

bool copy (
const QString &fileName,
const QString &newName )

QString decodeName (
const QByteArray &localFileName)

QString decodeName (
const char *localFileName)

QByteArray encodeName (
const QString &fileName)

bool exists (
const QString &fileName)

bool link (
const QString &oldname,
const QString &newName )

Permissions permissions (
const QString &filename)

QString readLink (
const QString &fileName)

bool remove (
const QString &fileName)

bool rename (
const QString &oldName,
const QString &newName )

bool resize (
const QString &filename,
qint64sz )

void setDecodingFunction (
DecoderFn)

void setEncodingFunction (
EncoderFn)

bool setPermissions (
const QString &filename,
PermissionspermissionSpec )

QString symLinkTarget (
const QString &fileName)

Protected Functions

QFile (
QFilePrivate &dd,
QObject *parent )

virtual qint64 readData (
char *data,
qint64maxlen )

virtual qint64 readLineData (
char *data,
qint64maxlen )

virtual qint64 writeData (
const char *data,
qint64len )

QIODevice (
QIODevicePrivate &dd,
QObject *parent )

void setErrorString (
const QString &errorString)

void setOpenMode (
OpenModeopenMode)

Signals

(Only has inherited signals)

void aboutToClose ()

void bytesWritten (
qint64bytes)

void readChannelFinished ()

void readyRead ()

The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation.

Documentation sources may be obtained from www.qt-project.org.

Digia, Qt and their respective logos are trademarks of Digia Plc in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. Privacy Policy