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This is the verbatim text of the qsocket.h include file. It is provided only for illustration; the copyright remains with Troll Tech.
** $Id: qsocket.h,v 1.11 1999/04/28 09:57:45 aavit Exp $
** Definition of QSocket class
** Created : 990221
** Copyright (C) 1992-1999 Troll Tech AS.  All rights reserved.
** This file is part of the Qt GUI Toolkit.
** This file may be distributed under the terms of the Q Public License
** as defined by Troll Tech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
** Licensees holding valid Qt Professional Edition licenses may use this
** file in accordance with the Qt Professional Edition License Agreement
** provided with the Qt Professional Edition.
** See http://www.troll.no/pricing.html or email sales@troll.no for
** information about the Professional Edition licensing, or see
** http://www.troll.no/qpl/ for QPL licensing information.

#ifndef QSOCKET_H
#define QSOCKET_H

#ifndef QT_H
#include "qsocketdevice.h"
#include "qsocketnotifier.h"
#endif // QT_H

class QSocketPrivate;

class Q_EXPORT QSocket : public QObject, public QIODevice
    QSocket( QObject *parent=0, const char *name=0 );
    QSocket( int socket, QObject *parent=0, const char *name=0 );

    enum State { Idle, HostLookup, Connecting, Connection, Closing };
    State        state() const;

    enum Mode { Binary, Ascii };
    Mode         mode() const;
    void         setMode( Mode );

    bool         connectToHost( const QString &host, int port );
    QString      host() const;
    int          port() const;

    // Implementation of QIODevice abstract virtual functions
    bool         open( int mode );
    void         close();
    void         flush();
    uint         size() const;
    int          at() const;
    bool         at( int );
    bool         atEnd() const;    

    int          bytesAvailable() const;
    int          bytesToWrite() const;

    int          readBlock( char *data, uint maxlen );
    int          writeBlock( const char *data, uint len );

    int          getch();
    int          putch( int );
    int          ungetch(int);

    bool         canReadLine() const;
    QString      readLine();

    void         hostFound();
    void         connected();
    void         closed();
    void         delayedCloseFinished();
    void         readyRead();
    void         bytesWritten( int nbytes );
    void         error();

protected slots:
    virtual void sn_read();
    virtual void sn_write();

    QSocketDevice *socketDevice();
    void          timerEvent( QTimerEvent * );

    QSocketPrivate *d;

    bool         skipReadBuf( int nbytes, char * );
    bool         skipWriteBuf( int nbytes );
    bool         scanNewline( QByteArray * = 0 );

private:        // Disabled copy constructor and operator=
#if defined(Q_DISABLE_COPY)
    QSocket( const QSocket & );
    QSocket &operator=( const QSocket & );

#endif // QSOCKET_H

Copyright 1999 Troll TechTrademarks
Qt version 2.0.2