connect(pushMenu,SIGNAL(triggered(QAction*)),this,SLOT(changeS(QAction*)));
connect(dButton,SIGNAL(clicked()),this, SLOT(play()));
connect(stopButton,SIGNAL(clicked()),this,SLOT(stop()));
connect(pushMenu,SIGNAL(triggered(QAction*)),this,SLOT(changeS(QAction*)));
connect(dButton,SIGNAL(clicked()),this, SLOT(play()));
connect(stopButton,SIGNAL(clicked()),this,SLOT(stop()));