diff options
Diffstat (limited to 'doc/man/man3/qbuffer.3qt')
-rw-r--r-- | doc/man/man3/qbuffer.3qt | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/doc/man/man3/qbuffer.3qt b/doc/man/man3/qbuffer.3qt deleted file mode 100644 index 82d78bb09..000000000 --- a/doc/man/man3/qbuffer.3qt +++ /dev/null @@ -1,138 +0,0 @@ -'\" t -.TH QBuffer 3qt "2 February 2007" "Trolltech AS" \" -*- nroff -*- -.\" Copyright 1992-2007 Trolltech ASA. All rights reserved. See the -.\" license file included in the distribution for a complete license -.\" statement. -.\" -.ad l -.nh -.SH NAME -QBuffer \- I/O device that operates on a QByteArray -.SH SYNOPSIS -All the functions in this class are reentrant when Qt is built with thread support.</p> -.PP -\fC#include <ntqbuffer.h>\fR -.PP -Inherits QIODevice. -.PP -.SS "Public Members" -.in +1c -.ti -1c -.BI "\fBQBuffer\fR ()" -.br -.ti -1c -.BI "\fBQBuffer\fR ( QByteArray buf )" -.br -.ti -1c -.BI "\fB~QBuffer\fR ()" -.br -.ti -1c -.BI "QByteArray \fBbuffer\fR () const" -.br -.ti -1c -.BI "bool \fBsetBuffer\fR ( QByteArray buf )" -.br -.ti -1c -.BI "virtual TQ_LONG \fBwriteBlock\fR ( const char * p, TQ_ULONG len )" -.br -.ti -1c -.BI "TQ_LONG \fBwriteBlock\fR ( const QByteArray & data )" -.br -.in -1c -.SH DESCRIPTION -The QBuffer class is an I/O device that operates on a QByteArray. -.PP -QBuffer is used to read and write to a memory buffer. It is normally used with a QTextStream or a QDataStream. QBuffer has an associated QByteArray which holds the buffer data. The size() of the buffer is automatically adjusted as data is written. -.PP -The constructor \fCQBuffer(QByteArray)\fR creates a QBuffer using an existing byte array. The byte array can also be set with setBuffer(). Writing to the QBuffer will modify the original byte array because QByteArray is explicitly shared. -.PP -Use open() to open the buffer before use and to set the mode (read-only, write-only, etc.). close() closes the buffer. The buffer must be closed before reopening or calling setBuffer(). -.PP -A common way to use QBuffer is through QDataStream or QTextStream, which have constructors that take a QBuffer parameter. For convenience, there are also QDataStream and QTextStream constructors that take a QByteArray parameter. These constructors create and open an internal QBuffer. -.PP -Note that QTextStream can also operate on a QString (a Unicode string); a QBuffer cannot. -.PP -You can also use QBuffer directly through the standard QIODevice functions readBlock(), writeBlock() readLine(), at(), getch(), putch() and ungetch(). -.PP -See also QFile, QDataStream, QTextStream, QByteArray, Shared Classes, Collection Classes, and Input/Output and Networking. -.SH MEMBER FUNCTION DOCUMENTATION -.SH "QBuffer::QBuffer ()" -Constructs an empty buffer. -.SH "QBuffer::QBuffer ( QByteArray buf )" -Constructs a buffer that operates on \fIbuf\fR. -.PP -If you open the buffer in write mode (<a href="ntqfile.html#open">IO_WriteOnly</a> or IO_ReadWrite) and write something into the buffer, \fIbuf\fR will be modified. -.PP -Example: -.PP -.nf -.br - QCString str = "abc"; -.br - QBuffer b( str ); -.br - b.open( IO_WriteOnly ); -.br - b.at( 3 ); // position at the 4th character (the terminating \\0) -.br - b.writeBlock( "def", 4 ); // write "def" including the terminating \\0 -.br - b.close(); -.br - // Now, str == "abcdef" with a terminating \\0 -.br -.fi -.PP -See also setBuffer(). -.SH "QBuffer::~QBuffer ()" -Destroys the buffer. -.SH "QByteArray QBuffer::buffer () const" -Returns this buffer's byte array. -.PP -See also setBuffer(). -.SH "bool QBuffer::setBuffer ( QByteArray buf )" -Replaces the buffer's contents with \fIbuf\fR and returns TRUE. -.PP -Does nothing (and returns FALSE) if isOpen() is TRUE. -.PP -Note that if you open the buffer in write mode (<a href="ntqfile.html#open">IO_WriteOnly</a> or IO_ReadWrite) and write something into the buffer, \fIbuf\fR is also modified because QByteArray is an explicitly shared class. -.PP -See also buffer(), open(), and close(). -.SH "TQ_LONG QBuffer::writeBlock ( const char * p, TQ_ULONG len )\fC [virtual]\fR" -Writes \fIlen\fR bytes from \fIp\fR into the buffer at the current index position, overwriting any characters there and extending the buffer if necessary. Returns the number of bytes actually written. -.PP -Returns -1 if an error occurred. -.PP -See also readBlock(). -.PP -Reimplemented from QIODevice. -.SH "TQ_LONG QBuffer::writeBlock ( const QByteArray & data )" -This is an overloaded member function, provided for convenience. It behaves essentially like the above function. -.PP -This convenience function is the same as calling -\fCwriteBlock( data.data(), data.size() )\fR with \fIdata\fR. - -.SH "SEE ALSO" -.BR http://doc.trolltech.com/ntqbuffer.html -.BR http://www.trolltech.com/faq/tech.html -.SH COPYRIGHT -Copyright 1992-2007 Trolltech ASA, http://www.trolltech.com. See the -license file included in the distribution for a complete license -statement. -.SH AUTHOR -Generated automatically from the source code. -.SH BUGS -If you find a bug in Qt, please report it as described in -.BR http://doc.trolltech.com/bughowto.html . -Good bug reports help us to help you. Thank you. -.P -The definitive Qt documentation is provided in HTML format; it is -located at $QTDIR/doc/html and can be read using Qt Assistant or with -a web browser. This man page is provided as a convenience for those -users who prefer man pages, although this format is not officially -supported by Trolltech. -.P -If you find errors in this manual page, please report them to -.BR qt-bugs@trolltech.com . -Please include the name of the manual page (qbuffer.3qt) and the Qt -version (3.3.8). |