qfiledialog
// QFileDialog : public QDialog
public:
    enum ViewMode { Detail, List };
    enum FileMode { AnyFile, ExistingFile, Directory, ExistingFiles, DirectoryOnly };
    enum AcceptMode { AcceptOpen, AcceptSave };
    enum DialogLabel { LookIn, FileName, FileType, Accept, Reject };
    // ### Rename to FileDialogOption and FileDialogOptions for Qt 5.0
    enum Option
    {
        ShowDirsOnly          = 0x00000001,
        DontResolveSymlinks   = 0x00000002,
        DontConfirmOverwrite  = 0x00000004,
        DontUseSheet          = 0x00000008,
        DontUseNativeDialog   = 0x00000010,
        ReadOnly              = 0x00000020,
        HideNameFilterDetails = 0x00000040
    };
    Q_DECLARE_FLAGS(Options, Option)
    QFileDialog(QWidget *parent, Qt::WindowFlags f);
    explicit QFileDialog(QWidget *parent = 0,
                         const QString &caption = QString(),
                         const QString &directory = QString(),
                         const QString &filter = QString());
    ~QFileDialog();
    void setDirectory(const QString &directory);
    inline void setDirectory(const QDir &directory);
    QDir directory() const;
    void selectFile(const QString &filename);
    QStringList selectedFiles() const;
#ifdef QT_DEPRECATED
    QT_DEPRECATED void setFilter(const QString &filter);
    QT_DEPRECATED void setFilters(const QStringList &filters);
    QT_DEPRECATED QStringList filters() const;
    QT_DEPRECATED void selectFilter(const QString &filter);
    QT_DEPRECATED QString selectedFilter() const;
#endif
    void setNameFilterDetailsVisible(bool enabled);
    bool isNameFilterDetailsVisible() const;
    void setNameFilter(const QString &filter);
    void setNameFilters(const QStringList &filters);
    QStringList nameFilters() const;
    void selectNameFilter(const QString &filter);
    QString selectedNameFilter() const;
    QDir::Filters filter() const;
    void setFilter(QDir::Filters filters);
    void setViewMode(ViewMode mode);
    ViewMode viewMode() const;
    void setFileMode(FileMode mode);
    FileMode fileMode() const;
    void setAcceptMode(AcceptMode mode);
    AcceptMode acceptMode() const;
    void setReadOnly(bool enabled);
    bool isReadOnly() const;
    void setResolveSymlinks(bool enabled);
    bool resolveSymlinks() const;
    void setSidebarUrls(const QList<QUrl> &urls);
    QList<QUrl> sidebarUrls() const;
    QByteArray saveState() const;
    bool restoreState(const QByteArray &state);
    void setConfirmOverwrite(bool enabled);
    bool confirmOverwrite() const;
    void setDefaultSuffix(const QString &suffix);
    QString defaultSuffix() const;
    void setHistory(const QStringList &paths);
    QStringList history() const;
    void setItemDelegate(QAbstractItemDelegate *delegate);
    QAbstractItemDelegate *itemDelegate() const;
    void setIconProvider(QFileIconProvider *provider);
    QFileIconProvider *iconProvider() const;
    void setLabelText(DialogLabel label, const QString &text);
    QString labelText(DialogLabel label) const;
#ifndef QT_NO_PROXYMODEL
    void setProxyModel(QAbstractProxyModel *model);
    QAbstractProxyModel *proxyModel() const;
#endif
    void setOption(Option option, bool on = true);
    bool testOption(Option option) const;
    void setOptions(Options options);
    Options options() const;
#ifdef Q_NO_USING_KEYWORD
#ifndef Q_QDOC
    void open() { QDialog::open(); }
#endif
#else
    using QDialog::open;
#endif
    void open(QObject *receiver, const char *member);
    void setVisible(bool visible);
Q_SIGNALS:
    void fileSelected(const QString &file);
    void filesSelected(const QStringList &files);
    void currentChanged(const QString &path);
    void directoryEntered(const QString &directory);
    void filterSelected(const QString &filter);
public:
#ifdef QT3_SUPPORT
    typedef FileMode Mode;
    inline QT3_SUPPORT void setMode(FileMode m) { setFileMode(m); }
    inline QT3_SUPPORT FileMode mode() const { return fileMode(); }
    inline QT3_SUPPORT void setDir(const QString &directory) { setDirectory(directory); }
    inline QT3_SUPPORT void setDir( const QDir &directory ) { setDirectory(directory); }
    QT3_SUPPORT QString selectedFile() const;
#endif
    static QString getOpenFileName(QWidget *parent = 0,
                                   const QString &caption = QString(),
                                   const QString &dir = QString(),
                                   const QString &filter = QString(),
                                   QString *selectedFilter = 0,
                                   Options options = 0);
    static QString getSaveFileName(QWidget *parent = 0,
                                   const QString &caption = QString(),
                                   const QString &dir = QString(),
                                   const QString &filter = QString(),
                                   QString *selectedFilter = 0,
                                   Options options = 0);
    static QString getExistingDirectory(QWidget *parent = 0,
                                        const QString &caption = QString(),
                                        const QString &dir = QString(),
                                        Options options = ShowDirsOnly);
    static QStringList getOpenFileNames(QWidget *parent = 0,
                                        const QString &caption = QString(),
                                        const QString &dir = QString(),
                                        const QString &filter = QString(),
                                        QString *selectedFilter = 0,
                                        Options options = 0);
#ifdef QT3_SUPPORT
    inline static QString QT3_SUPPORT getOpenFileName(const QString &dir,
                                                    const QString &filter = QString(),
                                                    QWidget *parent = 0, const char* name = 0,
                                                    const QString &caption = QString(),
                                                    QString *selectedFilter = 0,
                                                    bool resolveSymlinks = true)
        { Q_UNUSED(name);
          return getOpenFileName(parent, caption, dir, filter, selectedFilter,
                                 resolveSymlinks ? Option(0) : DontResolveSymlinks); }
    inline static QString QT3_SUPPORT getSaveFileName(const QString &dir,
                                                    const QString &filter = QString(),
                                                    QWidget *parent = 0, const char* name = 0,
                                                    const QString &caption = QString(),
                                                    QString *selectedFilter = 0,
                                                    bool resolveSymlinks = true)
        { Q_UNUSED(name);
          return getSaveFileName(parent, caption, dir, filter, selectedFilter,
                                 resolveSymlinks ? Option(0) : DontResolveSymlinks); }
    inline static QString QT3_SUPPORT getExistingDirectory(const QString &dir,
                                                         QWidget *parent = 0,
                                                         const char* name = 0,
                                                         const QString &caption = QString(),
                                                         bool dirOnly = true,
                                                         bool resolveSymlinks = true)
        { Q_UNUSED(name);
          return getExistingDirectory(parent, caption, dir,
                                      Options((resolveSymlinks ? Option(0) : DontResolveSymlinks)
                                      | (dirOnly ? ShowDirsOnly : Option(0)))); }
    inline static QStringList QT3_SUPPORT getOpenFileNames(const QString &filter,
                                                         const QString &dir = QString(),
                                                         QWidget *parent = 0,
                                                         const char* name = 0,
                                                         const QString &caption = QString(),
                                                         QString *selectedFilter = 0,
                                                         bool resolveSymlinks = true)
        { Q_UNUSED(name);
          return getOpenFileNames(parent, caption, dir, filter, selectedFilter,
                                  resolveSymlinks ? Option(0) : DontResolveSymlinks); }
#endif // QT3_SUPPORT