### - o -

- operator!=() : QwtInterval , QwtIntervalSymbol , QwtPointPolar , QwtSymbol , QwtText , QwtScaleDiv , QwtPoint3D , QwtIntervalSample , QwtSetSample
- operator&() : QwtInterval
- operator&=() : QwtInterval
- operator=() : QwtText , QwtIntervalSymbol , QwtScaleMap , QwtSpline , QwtSymbol
- operator==() : QwtInterval , QwtIntervalSymbol , QwtPoint3D , QwtPointPolar , QwtScaleDiv , QwtIntervalSample , QwtText , QwtSymbol , QwtSetSample
- operator|() : QwtInterval
- operator|=() : QwtInterval
- orientation() : QwtAbstractSlider , QwtPlotAbstractSeriesItem , QwtColumnRect , QwtScaleDraw , QwtPlotRescaler
- orientations() : QwtPanner
- origin() : QwtDial