The QTemporaryFile class is an I/O device that operates on temporary files. More...

Inheritance diagram for QtCore.QTemporaryFile:

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Collaboration diagram for QtCore.QTemporaryFile:

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Public Member Functions
	QTemporaryFile ()


	QTemporaryFile (QObject parent)


	QTemporaryFile (string templateName)


	QTemporaryFile (string templateName, QObject parent)


override void	CreateProxy ()

override QAbstractFileEngine	FileEngine ()

new string	FileName ()


new bool	Open ()


override bool	Open (QIODevice.OpenModeFlag flags)


new void	Dispose ()

Public Member Functions inherited from QtCore.QFile
	QFile ()


	QFile (QObject parent)


	QFile (string name)


	QFile (string name, QObject parent)


override bool	AtEnd ()


override void	Close ()


new bool	Copy (string newName)


new QFile.FileError	Error ()


new bool	Exists ()


new bool	Flush ()


new int	Handle ()


override bool	IsSequential ()


new bool	Link (string newName)


new Pointer< byte >	Map (long offset, long size, QFile.MemoryMapFlags flags=QFile.MemoryMapFlags.NoOptions)


new bool	Open (int fd, QIODevice.OpenModeFlag flags)


new bool	Open (int fd, QIODevice.OpenModeFlag ioFlags, QFile.FileHandleFlag handleFlags)


new QFile.Permission	Permissions ()


override long	Pos ()


new string	ReadLink ()


new bool	Remove ()


new bool	Rename (string newName)


new bool	Resize (long sz)


override bool	Seek (long offset)


new bool	SetPermissions (QFile.Permission permissionSpec)


override long	Size ()


new string	SymLinkTarget ()


new bool	Unmap (Pointer< byte > address)


new void	UnsetError ()


new void	Dispose ()

Public Member Functions inherited from QtCore.QIODevice
	QIODevice ()


	QIODevice (QObject parent)


virtual long	BytesAvailable ()


virtual long	BytesToWrite ()


virtual bool	CanReadLine ()


new string	ErrorString ()


new bool	GetChar (Pointer< sbyte > c)


new bool	IsOpen ()


new bool	IsReadable ()


new bool	IsTextModeEnabled ()


new bool	IsWritable ()


new QIODevice.OpenModeFlag	OpenMode ()


new QByteArray	Peek (long maxlen)


new long	Peek (Pointer< sbyte > data, long maxlen)


new bool	PutChar (sbyte c)


new QByteArray	Read (long maxlen)


new long	Read (Pointer< sbyte > data, long maxlen)


new QByteArray	ReadAll ()


new QByteArray	ReadLine (long maxlen=0)


new long	ReadLine (Pointer< sbyte > data, long maxlen)


virtual bool	Reset ()


new void	SetTextModeEnabled (bool enabled)


new void	UngetChar (sbyte c)


virtual bool	WaitForBytesWritten (int msecs)


virtual bool	WaitForReadyRead (int msecs)


new long	Write (QByteArray data)


new long	Write (string data)


new long	Write (string data, long len)


new void	Dispose ()

Public Member Functions inherited from QtCore.QObject
	QObject (QObject parent=null)


new bool	BlockSignals (bool b)


new System.Collections.Generic.List < QObject >	Children ()


new bool	Connect (QObject sender, string signal, string member, Qt.ConnectionType type=Qt.ConnectionType.AutoConnection)


new void	DeleteLater ()


new bool	Disconnect (QObject receiver, string member=null)


new bool	Disconnect (string signal=null, QObject receiver=null, string member=null)


new void	DumpObjectInfo ()


new void	DumpObjectTree ()


new System.Collections.Generic.List < QByteArray >	DynamicPropertyNames ()


virtual bool	OnEvent (QEvent arg1)


virtual bool	EventFilter (QObject arg1, QEvent arg2)


new bool	Inherits (string classname)


new void	InstallEventFilter (QObject arg1)


new bool	IsWidgetType ()


new void	KillTimer (int id)


new object	Property (string name)


new void	RemoveEventFilter (QObject arg1)


new bool	SetProperty (string name, object value)


new void	SetUserData (uint id, QObjectUserData data)

new bool	SignalsBlocked ()


new int	StartTimer (int interval)


new QObjectUserData	UserData (uint id)

new void	Dispose ()

Public Member Functions inherited from QtCore.Qt
delegate QTextStream	FuncQTextStreamQTextStream (QTextStream qTextStream)

delegate string	FuncStringQByteArray (QByteArray qByteArray)

delegate QByteArray	FuncQByteArrayString (string @string)

delegate void	ActionQtMsgTypeString (QtMsgType qtMsgType, string @string)

delegate QObject	FuncQObject ()

Static Public Member Functions
static QTemporaryFile	CreateLocalFile (QFile file)


static QTemporaryFile	CreateLocalFile (string fileName)


static string	Tr (string s, string c=null)

static string	Tr (string s, string c, int n)

static string	TrUtf8 (string s, string c=null)

static string	TrUtf8 (string s, string c, int n)

Static Public Member Functions inherited from QtCore.QFile
static bool	Copy (string fileName, string newName)


static string	DecodeName (QByteArray localFileName)


static string	DecodeName (string localFileName)


static QByteArray	EncodeName (string fileName)


static bool	Exists (string fileName)


static bool	Link (string oldname, string newName)


static QFile.Permission	Permissions (string filename)


static string	ReadLink (string fileName)


static bool	Remove (string fileName)


static bool	Rename (string oldName, string newName)


static bool	Resize (string filename, long sz)


static void	SetDecodingFunction (Qt.FuncStringQByteArray arg1)


static void	SetEncodingFunction (Qt.FuncQByteArrayString arg1)


static bool	SetPermissions (string filename, QFile.Permission permissionSpec)


static string	SymLinkTarget (string fileName)


static string	Tr (string s, string c=null)

static string	Tr (string s, string c, int n)

static string	TrUtf8 (string s, string c=null)

static string	TrUtf8 (string s, string c, int n)

Static Public Member Functions inherited from QtCore.QIODevice
static string	Tr (string s, string c=null)

static string	Tr (string s, string c, int n)

static string	TrUtf8 (string s, string c=null)

static string	TrUtf8 (string s, string c, int n)

Static Public Member Functions inherited from QtCore.QObject
static bool	Connect (QObject sender, QMetaMethod signal, QObject receiver, QMetaMethod method, Qt.ConnectionType type=Qt.ConnectionType.AutoConnection)


static bool	Connect (QObject sender, string signal, QObject receiver, string member, Qt.ConnectionType arg5=Qt.ConnectionType.AutoConnection)


static bool	Disconnect (QObject sender, QMetaMethod signal, QObject receiver, QMetaMethod member)


static bool	Disconnect (QObject sender, string signal, QObject receiver, string member)


static uint	RegisterUserData ()

static string	Tr (string s, string c=null)


static string	Tr (string s, string c, int n)


static string	TrUtf8 (string s, string c=null)


static string	TrUtf8 (string s, string c, int n)


Static Public Member Functions inherited from QtCore.Qt
static QDataStream	Write (QDataStream s, object p)

static QDataStream	Write (QDataStream arg1, QSizeF arg2)

static QTextStream	Write (QTextStream s, Qt.FuncQTextStreamQTextStream f)

static QDataStream	Write (QDataStream arg1, QPoint arg2)

static QDataStream	Write (QDataStream arg1, QLineF arg2)

static QDataStream	Write (QDataStream arg1, QPointF arg2)

static QDataStream	Write (QDataStream arg1, QChar arg2)

static QDataStream	Write (QDataStream arg1, QByteArray arg2)

static QDataStream	Write (QDataStream arg1, QEasingCurve arg2)

static QDataStream	Write (QDataStream arg1, QRectF arg2)

static QDataStream	Write (QDataStream arg1, QDateTime arg2)

static QDataStream	Write (QDataStream arg1, QUrl arg2)

static QDataStream	Write (QDataStream arg1, QTime arg2)

static QDataStream	Write (QDataStream arg1, QLocale arg2)

static QDataStream	Write (QDataStream arg1, QBitArray arg2)

static QDataStream	Write (QDataStream arg1, QUuid arg2)

static QDataStream	Write (QDataStream arg1, QLine arg2)

static QDataStream	Write (QDataStream arg1, QDate arg2)

static QDataStream	Write (QDataStream @out, QRegExp regExp)

static QDataStream	Write (QDataStream arg1, QRect arg2)

static QDataStream	Write (QDataStream arg1, QSize arg2)

static QDataStream	Write (QDataStream s, QVariant.Type p)

static QDataStream	Write (QDataStream arg1, string arg2)

static QDataStream	Write (QDataStream @out, System.Collections.Generic.List< string > list)

static QDataStream	Read (QDataStream arg1, QChar arg2)

static QDataStream	Read (QDataStream arg1, QLocale arg2)

static QDataStream	Read (QDataStream arg1, QRect arg2)

static QDataStream	Read (QDataStream arg1, QEasingCurve arg2)

static QDataStream	Read (QDataStream arg1, QDate arg2)

static QDataStream	Read (QDataStream arg1, QUrl arg2)

static QDataStream	Read (QDataStream arg1, QUuid arg2)

static QTextStream	Read (QTextStream s, Qt.FuncQTextStreamQTextStream f)

static QDataStream	Read (QDataStream arg1, QLineF arg2)

static QDataStream	Read (QDataStream arg1, QRectF arg2)

static QDataStream	Read (QDataStream arg1, QPointF arg2)

static QDataStream	Read (QDataStream arg1, QLine arg2)

static QDataStream	Read (QDataStream arg1, QBitArray arg2)

static QDataStream	Read (QDataStream arg1, QSize arg2)

static QDataStream	Read (QDataStream arg1, QDateTime arg2)

static QDataStream	Read (QDataStream arg1, QTime arg2)

static QDataStream	Read (QDataStream arg1, QPoint arg2)

static QDataStream	Read (QDataStream @in, QRegExp regExp)

static QDataStream	Read (QDataStream s, object p)

static QDataStream	Read (QDataStream arg1, QByteArray arg2)

static QDataStream	Read (QDataStream arg1, QSizeF arg2)

static QDataStream	Read (QDataStream arg1, string arg2)

static QDataStream	Read (QDataStream s, QVariant.Type p)

static QDataStream	Read (QDataStream @in, System.Collections.Generic.List< string > list)

static double	qAcos (double v)

static void	qAddPostRoutine (System.Action arg1)

static string	qAppName ()

static double	qAsin (double v)

static double	qAtan (double v)

static double	qAtan2 (double x, double y)

static void	qBadAlloc ()

static int	qCeil (double v)

static ushort	qChecksum (string s, uint len)

static QByteArray	qCompress (QByteArray data)

static QByteArray	qCompress (QByteArray data, int compressionLevel=-1)

static QByteArray	qCompress (Pointer< byte > data, int nbytes)

static QByteArray	qCompress (Pointer< byte > data, int nbytes, int compressionLevel=-1)

static double	qCos (double v)

static double	qExp (double v)

static double	qFabs (double v)

static double	qFastCos (double x)

static double	qFastSin (double x)

static string	qFlagLocation (string method)

static int	qFloor (double v)

static bool	qFuzzyCompare (double p1, double p2)

static bool	qFuzzyCompare (float p1, float p2)

static bool	qFuzzyIsNull (double d)

static bool	qFuzzyIsNull (float f)

static uint	qHash (QBitArray key)

static uint	qHash (QChar key)

static uint	qHash (QStringRef key)

static uint	qHash (QUrl url)

static uint	qHash (QPersistentModelIndex index)

static uint	qHash (QByteArray key)

static uint	qHash (QModelIndex index)

static uint	qHash (uint key)

static uint	qHash (sbyte key)

static uint	qHash (byte key)

static uint	qHash (short key)

static uint	qHash (NativeLong key)

static uint	qHash (ushort key)

static uint	qHash (long key)

static uint	qHash (ulong key)

static uint	qHash (int key)

static uint	qHash (string key)

static uint	qHash (NativeULong key)

static double	qInf ()

static Qt.ActionQtMsgTypeString	qInstallMsgHandler (Qt.ActionQtMsgTypeString arg1)

static int	qIntCast (float f)

static int	qIntCast (double f)

static bool	qIsFinite (double d)

static bool	qIsFinite (float f)

static bool	qIsInf (float f)

static bool	qIsInf (double d)

static bool	qIsNaN (float f)

static bool	qIsNaN (double d)

static bool	qIsNull (float f)

static bool	qIsNull (double d)

static double	qLn (double v)

static double	qPow (double x, double y)

static double	qQNaN ()

static void	qRegisterStaticPluginInstanceFunction (Qt.FuncQObject function)

static void	qRemovePostRoutine (System.Action arg1)

static int	qRound (double d)

static long	qRound64 (double d)

static double	qSNaN ()

static bool	qSharedBuild ()

static double	qSin (double v)

static double	qSqrt (double v)

static bool	qStringComparisonHelper (QStringRef s1, string s2)

static double	qTan (double v)

static QByteArray	qUncompress (QByteArray data)

static QByteArray	qUncompress (Pointer< byte > data, int nbytes)

static string	qVersion ()

static void	Qbswap_helper (Pointer< byte > src, Pointer< byte > dest, int size)

static QByteArray	Qgetenv (string varName)

static bool	Qputenv (string varName, QByteArray value)

static int	Qrand ()

static void	Qsrand (uint seed)

static int	Qstrcmp (QByteArray str1, QByteArray str2)

static int	Qstrcmp (QByteArray str1, string str2)

static int	Qstrcmp (string str1, QByteArray str2)

static int	Qstrcmp (string str1, string str2)

static Pointer< sbyte >	Qstrcpy (Pointer< sbyte > dst, string src)

static Pointer< sbyte >	Qstrdup (string arg1)

static int	Qstricmp (string arg1, string arg2)

static uint	Qstrlen (string str)

static int	Qstrncmp (string str1, string str2, uint len)

static Pointer< sbyte >	Qstrncpy (Pointer< sbyte > dst, string src, uint len)

static int	Qstrnicmp (string arg1, string arg2, uint len)

static uint	Qstrnlen (string str, uint maxlen)

static string	QtTrId (string id, int n=-1)

Protected Member Functions
	QTemporaryFile (System.Type dummy)

Protected Member Functions inherited from QtCore.QFile
	QFile (System.Type dummy)

override long	ReadData (Pointer< sbyte > data, long maxlen)


override long	ReadLineData (Pointer< sbyte > data, long maxlen)


override long	WriteData (string data, long len)


Protected Member Functions inherited from QtCore.QIODevice
	QIODevice (System.Type dummy)

new void	OnAboutToClose ()


new void	OnBytesWritten (long bytes)


new void	OnReadChannelFinished ()


new void	OnReadyRead ()


new void	SetErrorString (string errorString)


new void	SetOpenMode (QIODevice.OpenModeFlag openMode)


Protected Member Functions inherited from QtCore.QObject
	QObject (System.Type dummy)

virtual void	OnChildEvent (QChildEvent arg1)


virtual void	ConnectNotify (string signal)


virtual void	OnCustomEvent (QEvent arg1)


new void	OnDestroyed (QObject arg1=null)


virtual void	DisconnectNotify (string signal)


new int	Receivers (string signal)


new QObject	Sender ()


new int	SenderSignalIndex ()


virtual void	OnTimerEvent (QTimerEvent arg1)

Properties
new bool	AutoRemove `[get, set]`


new string	FileTemplate `[get, set]`


static new QMetaObject	StaticMetaObject `[get]`

new IQTemporaryFileSignals	Emit `[get]`

Properties inherited from QtCore.QFile
new string	FileName `[get, set]`


static new QMetaObject	StaticMetaObject `[get]`

new IQFileSignals	Emit `[get]`

Properties inherited from QtCore.QIODevice
Slot	ReadyRead


Slot< System.Int64 >	BytesWritten


Slot	AboutToClose


Slot	ReadChannelFinished


static new QMetaObject	StaticMetaObject `[get]`

new IQIODeviceSignals	Emit `[get]`

Properties inherited from QtCore.QObject
virtual EventHandler < QEventArgs< QChildEvent > >	ChildEvent


virtual EventHandler < QEventArgs< QEvent > >	CustomEvent


virtual EventHandler < QEventArgs< QEvent > >	Event


virtual EventHandler < QEventArgs< QTimerEvent > >	TimerEvent


Slot< QObject >	DestroyedQObject

Slot	Destroyed


new QObject	Parent `[get, set]`


virtual System.IntPtr	SmokeObject `[get, set]`

new string	ObjectName `[get, set]`


static new QMetaObject	StaticMetaObject `[get]`


static new QMetaObject	StaticQtMetaObject `[get]`

new IQObjectSignals	Emit `[get]`

Additional Inherited Members
Public Types inherited from QtCore.QFile
enum	FileError { AbortError = 6, CopyError = 14, FatalError = 3, NoError = 0, OpenError = 5, PermissionsError = 13, PositionError = 11, ReadError = 1, RemoveError = 9, RenameError = 10, ResizeError = 12, ResourceError = 4, TimeOutError = 7, UnspecifiedError = 8, WriteError = 2 }
	More...

enum	FileHandleFlag { AutoCloseHandle = 1, DontCloseHandle = 0 }
	More...

enum	MemoryMapFlags { NoOptions = 0 }
	More...

enum	Permission { ExeGroup = 16, ExeOther = 1, ExeOwner = 4096, ExeUser = 256, ReadGroup = 64, ReadOther = 4, ReadOwner = 16384, ReadUser = 1024, WriteGroup = 32, WriteOther = 2, WriteOwner = 8192, WriteUser = 512 }
	More...

Protected Attributes inherited from QtCore.QObject
object	Q_EMIT = null

SmokeInvocation	interceptor

readonly List< QEventHandler >	eventFilters = new List<QEventHandler>()

Detailed Description

The QTemporaryFile class is an I/O device that operates on temporary files.

QTemporaryFile is used to create unique temporary files safely. The file itself is created by calling open(). The name of the temporary file is guaranteed to be unique (i.e., you are guaranteed to not overwrite an existing file), and the file will subsequently be removed upon destruction of the QTemporaryFile object. This is an important technique that avoids data corruption for applications that store data in temporary files. The file name is either auto-generated, or created based on a template, which is passed to QTemporaryFile's constructor.

Example:

// Within a function/method...

QTemporaryFile file;

if (file.open()) {

// file.fileName() returns the unique file name

}

// The QTemporaryFile destructor removes the temporary file

// as it goes out of scope.

Reopening a QTemporaryFile after calling close() is safe. For as long as the QTemporaryFile object itself is not destroyed, the unique temporary file will exist and be kept open internally by QTemporaryFile.

The file name of the temporary file can be found by calling fileName(). Note that this is only defined after the file is first opened; the function returns an empty string before this.

A temporary file will have some static part of the name and some part that is calculated to be unique. The default filename qt_temp will be placed into the temporary path as returned by QDir::tempPath(). If you specify your own filename, a relative file path will not be placed in the temporary directory by default, but be relative to the current working directory.

Specified filenames can contain the following template XXXXXX (six upper case "X" characters), which will be replaced by the auto-generated portion of the filename. Note that the template is case sensitive. If the template is not present in the filename, QTemporaryFile appends the generated part to the filename given.

Constructor & Destructor Documentation

QtCore.QTemporaryFile.QTemporaryFile ( System.Type dummy )

protected

QtCore.QTemporaryFile.QTemporaryFile ( )

Constructs a QTemporaryFile in QDir::tempPath(), using the file template "qt_temp.XXXXXX". The file is stored in the system's temporary directory.

See also setFileTemplate() and QDir::tempPath().

QtCore.QTemporaryFile.QTemporaryFile ( QObject parent )

Constructs a QTemporaryFile (with the given parent) in QDir::tempPath(), using the file template "qt_temp.XXXXXX".

Member Function Documentation

static QTemporaryFile QtCore.QTemporaryFile.CreateLocalFile ( QFile file )

static

If file is not on a local disk, a temporary file is created on a local disk, file is copied into the temporary local file, and a pointer to the temporary local file is returned. If file is already on a local disk, a copy is not created and 0 is returned.

static QTemporaryFile QtCore.QTemporaryFile.CreateLocalFile ( string fileName )

static

This is an overloaded function.

Works on the given fileName rather than an existing QFile object.

override void QtCore.QTemporaryFile.CreateProxy ( )

virtual

Reimplemented from QtCore.QFile.

new void QtCore.QTemporaryFile.Dispose ( )

override QAbstractFileEngine QtCore.QTemporaryFile.FileEngine ( )

virtual

Reimplemented from QtCore.QFile.

new string QtCore.QTemporaryFile.FileName ( )

Returns the complete unique filename backing the QTemporaryFile object. This string is null before the QTemporaryFile is opened, afterwards it will contain the fileTemplate() plus additional characters to make it unique.

Property Documentation

new bool QtCore.QTemporaryFile.AutoRemove

getset

Returns true if the QTemporaryFile is in auto remove mode. Auto-remove mode will automatically delete the filename from disk upon destruction. This makes it very easy to create your QTemporaryFile object on the stack, fill it with data, read from it, and finally on function return it will automatically clean up after itself.

Auto-remove is on by default.

Sets the QTemporaryFile into auto-remove mode if b is true.

Auto-remove is on by default.

new IQTemporaryFileSignals QtCore.QTemporaryFile.Emit

getprotected

new string QtCore.QTemporaryFile.FileTemplate

getset

Returns the set file template. The default file template will be called qt_temp and be placed in QDir::tempPath().

Sets the static portion of the file name to name. If the file template ends in XXXXXX that will automatically be replaced with the unique part of the filename, otherwise a filename will be determined automatically based on the static portion specified.

If name contains a relative file path, the path will be relative to the current working directory. You can use QDir::tempPath() to construct name if you want use the system's temporary directory.

new QMetaObject QtCore.QTemporaryFile.StaticMetaObject

staticget

QtCore.QTemporaryFile.QTemporaryFile	(	string	templateName,
		QObject	parent
	)

Public Member Functions

Static Public Member Functions

Protected Member Functions

Properties

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Property Documentation