... Returns TRUE if a shot is underway. void shoot(); . ... This private function paints the shot. ... The qRound() function is an inline function defined in qglobal.h (included by all other Qt header files). qRound() rounds a double to the closest integer. class MyWidget : public QWidget { public: MyWidget( QWidget *parent=0, const char *name=0 ); protected: void resizeEvent( QResizeEvent * ); private: QPushButton *quit; QPushButton *shoot; LCDRange *angle; LCDRange *force; CannonField *cannonField; };...