/**************************************************************** ** ** Qt tutorial 5 ** ****************************************************************/ #include #include #include #include #include #include class MyWidget : public QVBox { public: MyWidget( QWidget *parent=0, const char *name=0 ); }; MyWidget::MyWidget( QWidget *parent, const char *name ) : QVBox( parent, name ) { QPushButton *quit = new QPushButton( "Quit", this, "quit" ); quit->setFont( QFont( "Times", 18, QFont::Bold ) ); connect( quit, SIGNAL(clicked()), qApp, SLOT(quit()) ); QLCDNumber *lcd = new QLCDNumber( 2, this, "lcd" ); QSlider * slider = new QSlider( Horizontal, this, "slider" ); slider->setRange( 0, 99 ); slider->setValue( 0 ); connect( slider, SIGNAL(valueChanged(int)), lcd, SLOT(display(int)) ); } int main( int argc, char **argv ) { QApplication a( argc, argv ); MyWidget w; a.setMainWidget( &w ); w.show(); return a.exec(); }