Documentation
type QwtPlotIntervalCurve_CurveStyle = QEnum (CQwtPlotIntervalCurve_CurveStyle Int) #
type QwtPlotIntervalCurve_PaintAttribute = QEnum (CQwtPlotIntervalCurve_PaintAttribute Int) #
type QwtPlotIntervalCurve_PaintAttributes = QFlags (CQwtPlotIntervalCurve_PaintAttributes Int) #