Qt6 实现屏幕截图

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QMessageBox>
#include <QPixmap>
#include <QScreen>
#include <QFileDialog>
#include <QDesktopServices>
#include <QClipboard>


MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    //下面这两句实现屏幕截图
    QScreen *screen = QGuiApplication::primaryScreen();
    this->pixmap = screen->grabWindow();
}