成员的完整列表，这些成员属于 QwtCompassMagnetNeedle,包括所有继承而来的类成员

draw(QPainter *, const QPointF &center, double length, double direction, QPalette::ColorGroup=QPalette::Active) const	QwtDialNeedle	virtual
drawKnob(QPainter *, double width, const QBrush &, bool sunken) const	QwtDialNeedle	protectedvirtual
drawNeedle(QPainter *, double length, QPalette::ColorGroup) const override	QwtCompassMagnetNeedle	protectedvirtual
palette() const	QwtDialNeedle
QwtCompassMagnetNeedle(Style=TriangleStyle, const QColor &light=Qt::white, const QColor &dark=Qt::red)	QwtCompassMagnetNeedle
QwtDialNeedle()	QwtDialNeedle
setPalette(const QPalette &)	QwtDialNeedle	virtual
Style 枚举名称	QwtCompassMagnetNeedle
ThinStyle 枚举值	QwtCompassMagnetNeedle
TriangleStyle 枚举值	QwtCompassMagnetNeedle
~QwtDialNeedle()	QwtDialNeedle	virtual