#include <qframe.h> class Knob; class Thermo; class AmpFrame : public QFrame { Q_OBJECT public: AmpFrame(QWidget *); public Q_SLOTS: void setMaster(double v); protected: void timerEvent(QTimerEvent *); private: Knob *d_knbVolume; Knob *d_knbBalance; Knob *d_knbTreble; Knob *d_knbBass; Thermo *d_thmLeft; Thermo *d_thmRight; double d_master; };