### - o -

- operator &() : QwtDoubleInterval
- operator &=() : QwtDoubleInterval
- operator!=() : QwtText, QwtSymbol, QwtScaleDiv, QwtDoubleInterval
- operator=() : QwtText, QwtSpline, QwtScaleMap, QwtScaleDraw, QwtRoundScaleDraw, QwtCPointerData, QwtArrayData, QwtPolygonFData, QwtData, QwtAlphaColorMap, QwtLinearColorMap, QwtAbstractScaleDraw
- operator==() : QwtText, QwtSymbol, QwtScaleDiv, QwtDoubleInterval
- operator|() : QwtDoubleInterval
- operator|=() : QwtDoubleInterval
- options() : QwtPlotPrintFilter
- orientation() : QwtScaleDraw, QwtAbstractSlider
- origin() : QwtDial