source: trunk/src/corelib/plugin/qlibrary.h@ 788

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**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** This file is part of the QtCore module of the Qt Toolkit.
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** accordance with the Qt Commercial License Agreement provided with the
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** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
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** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
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#ifndef QLIBRARY_H
#define QLIBRARY_H

#include <QtCore/qobject.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Core)

#if defined(QT_NO_LIBRARY) && defined(Q_OS_WIN)
#undef QT_NO_LIBRARY
#pragma message("QT_NO_LIBRARY is not supported on Windows")
#endif

#ifndef QT_NO_LIBRARY

class QLibraryPrivate;

class Q_CORE_EXPORT QLibrary : public QObject
{
    Q_OBJECT
    Q_PROPERTY(QString fileName READ fileName WRITE setFileName)
    Q_PROPERTY(LoadHints loadHints READ loadHints WRITE setLoadHints)
    Q_FLAGS(LoadHint LoadHints)
public:
    enum LoadHint {
        ResolveAllSymbolsHint = 0x01,
        ExportExternalSymbolsHint = 0x02,
        LoadArchiveMemberHint = 0x04
    };
    Q_DECLARE_FLAGS(LoadHints, LoadHint)

    explicit QLibrary(QObject *parent = 0);
    explicit QLibrary(const QString& fileName, QObject *parent = 0);
    explicit QLibrary(const QString& fileName, int verNum, QObject *parent = 0);
    explicit QLibrary(const QString& fileName, const QString &version, QObject *parent = 0);
    ~QLibrary();

    void *resolve(const char *symbol);
    static void *resolve(const QString &fileName, const char *symbol);
    static void *resolve(const QString &fileName, int verNum, const char *symbol);
    static void *resolve(const QString &fileName, const QString &version, const char *symbol);

    bool load();
    bool unload();
    bool isLoaded() const;

    static bool isLibrary(const QString &fileName);

    void setFileName(const QString &fileName);
    QString fileName() const;

    void setFileNameAndVersion(const QString &fileName, int verNum);
    void setFileNameAndVersion(const QString &fileName, const QString &version);
    QString errorString() const;

    void setLoadHints(LoadHints hints);
    LoadHints loadHints() const;
#ifdef QT3_SUPPORT
    inline QT3_SUPPORT QString library() const { return fileName(); }
    inline QT3_SUPPORT void setAutoUnload( bool ) {}
#endif
private:
    QLibraryPrivate *d;
    bool did_load;
    Q_DISABLE_COPY(QLibrary)
};

Q_DECLARE_OPERATORS_FOR_FLAGS(QLibrary::LoadHints)

#endif //QT_NO_LIBRARY

QT_END_NAMESPACE

QT_END_HEADER

#endif //QLIBRARY_H