Qt获取屏幕分辨率

 

#include <QtWidgets/QApplication>
#include <QRect>

QDesktopWidget *qDesktopWidget= QApplication::desktop();
QRect qrect1 = qDesktopWidget->screen(0)->rect();
qDebug() << "width:" << qrect1.width() << "     height:" << qrect1.height();