#include "mainwindow.h" #include "ui_mainwindow.h" #include bool checkCameraAvailability() { if (QCameraInfo::availableCameras().count() > 0) return true; else return false; } MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui->setupUi(this); ui->statusBar->showMessage(tr("There are %1 cameras").arg(checkCameraAvailability())); } MainWindow::~MainWindow() { delete ui; }