Qt的DIY滚动条问题？
#include <QWindowsStyle>class newStyle : public QWindowsStyle{ Q_OBJECTpublic: newStyle(); virtual int pixelMetric(PixelMetric pm, const QStyleOption * opt=0, const QWidget * widget=0) const; //重载函数 virtual void drawComplexControl(ComplexControl cc, const QStyleOptionComplex *opt, QPainter *p, const QWidget *widget=0) const; //重载函数private: void diyScrollBar(const QStyleOptionComplex *opt, QPainter *p) const; //重画滚动条private: QPixmap *m_pBkPixmap; QPixmap *m_pHndPixmap;};