qlibrary.h

Trolltech公司发布的图形界面操作系统。可在qt-embedded-2.3.10平台上编译为嵌入式图形界面操作系统。

/**********************************************************************
** Copyright (C) 2000-2005 Trolltech AS.  All rights reserved.
**
** This file is part of the Qtopia Environment.
** 
** This program is free software; you can redistribute it and/or modify it
** under the terms of the GNU General Public License as published by the
** Free Software Foundation; either version 2 of the License, or (at your
** option) any later version.
** 
** A copy of the GNU GPL license version 2 is included in this package as 
** LICENSE.GPL.
**
** This program is distributed in the hope that it will be useful, but
** WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
** See the GNU General Public License for more details.
**
** In addition, as a special exception Trolltech gives permission to link
** the code of this program with Qtopia applications copyrighted, developed
** and distributed by Trolltech under the terms of the Qtopia Personal Use
** License Agreement. You must comply with the GNU General Public License
** in all respects for all of the code used other than the applications
** licensed under the Qtopia Personal Use License Agreement. If you modify
** this file, you may extend this exception to your version of the file,
** but you are not obligated to do so. If you do not wish to do so, delete
** this exception statement from your version.
** 
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact [e-mail] if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/

#include <qnamespace.h>
#if !(QT_VERSION-0 < 0x030000)
#include <qlibrary.h>
#include <private/qcom_p.h>
#include <private/qcomlibrary_p.h>
#else

#ifndef QLIBRARY_H
#define QLIBRARY_H

#include <qtopia/qpeglobal.h>
#include <qstring.h>
#include <qdict.h>

#ifndef QT_NO_COMPONENT

#include <qtopia/qcom.h>

class QLibraryPrivate;

class QTOPIA_EXPORT QLibrary
{
public:
    enum Policy
    {
	Delayed,
	Immediately,
	Manual
    };

    QLibrary( const QString& filename, Policy = Delayed );
    ~QLibrary();

    void *resolve( const char* );
    static void *resolve( const QString &filename, const char * );

    bool unload( bool force = FALSE );
    bool isLoaded() const;

    void setPolicy( Policy pol );
    Policy policy() const;

    QString library() const;

    QRESULT queryInterface( const QUuid&, QUnknownInterface** );

private:
    void createInstanceInternal();
    QLibraryPrivate *d;

    bool load();

    QString libfile;
    Policy libPol;
    QUnknownInterface *entry;

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

#endif // QT_NO_COMPONENT

#define Q_DEFINED_QLIBRARY
#include <qtopia/qtopiawinexport.h>
#endif //QLIBRARY_H

#endif // Qt < 3.0