qcheckbox

// QCheckBox : public QAbstractButton

public:
    explicit QCheckBox(QWidget *parent=0);
    explicit QCheckBox(const QString &text, QWidget *parent=0);


    QSize sizeHint() const;
    QSize minimumSizeHint() const;

    void setTristate(bool y = true);
    bool isTristate() const;

    Qt::CheckState checkState() const;
    void setCheckState(Qt::CheckState state);

Q_SIGNALS:
    void stateChanged(int);


#ifdef QT3_SUPPORT
public:
    enum ToggleState {
        Off =      Qt::Unchecked,
        NoChange = Qt::PartiallyChecked,
        On =       Qt::Checked
    };
    inline QT3_SUPPORT ToggleState state() const
        { return static_cast<QCheckBox::ToggleState>(static_cast<int>(checkState())); }
    inline QT3_SUPPORT void setState(ToggleState state)
        { setCheckState(static_cast<Qt::CheckState>(static_cast<int>(state))); }
    inline QT3_SUPPORT void setNoChange()
        { setCheckState(Qt::PartiallyChecked); }
    QT3_SUPPORT_CONSTRUCTOR QCheckBox(QWidget *parent, const char* name);
    QT3_SUPPORT_CONSTRUCTOR QCheckBox(const QString &text, QWidget *parent, const char* name);
#endif