获取屏幕大小

原文地址：https://blog.csdn.net/u013541325/article/details/106966650/

获取屏幕大小

#include<QScreen>
#include<QRect>

QList<QScreen *> list_screen =  QGuiApplication::screens();  //多显示器
QRect rect = list_screen.at(0)->geometry();
desktop_width = rect.width();
desktop_height = rect.height();
qDebug() << desktop_width <<desktop_height;