QT5-control-QDial (Dial control), qt5-control-qdial dial

QT5-control-QDial (Dial control), qt5-control-qdial dial

#ifndef MAINWINDOW_H#define MAINWINDOW_H#include <QMainWindow>#include <QDial>class MainWindow : public QMainWindow{    Q_OBJECTpublic:    MainWindow(QWidget *parent = 0);    ~MainWindow();    QDial* dl[10];public slots:    void changedDate();};#endif // MAINWINDOW_H

# Include "mainwindow. h "# include <QtDebug> MainWindow: MainWindow (QWidget * parent): QMainWindow (parent) {this-> resize (400,400); this-> centralWidget (); int xpos = 30; for (int I = 0; I <3; I ++) {dl [I] = new QDial (this ); dl [I]-> setRange (0,100); dl [I]-> setGeometry (xpos, 30,100,100); xpos + = 110 ;} // display the scale dl [0]-> setNotchesVisible (true); connect (dl [0], SIGNAL (valueChanged (int), this, SLOT (changedDate ();} Main Window ::~ MainWindow () {} void MainWindow: changedDate () {qDebug () <dl [0]-> value ();}

#include "mainwindow.h"#include <QApplication>int main(int argc, char *argv[]){    QApplication a(argc, argv);    MainWindow w;    w.show();    return a.exec();}