Qt中添加鼠标右键菜单

#include "RightButton.h"#include <QMenu>#include <QAction>#ifdef WIN32 #pragma execution_character_set("utf-8") #endifRightButton::RightButton(QWidget *parent): QWidget(parent){ui.setupUi(this);//设置可以添加右键this->setContextMenuPolicy(Qt::CustomContextMenu);//添加右键菜单menu = new QMenu(this);//添加选项QAction* check = new QAction("查看");QAction* refresh = new QAction("刷新");QAction* stick = new QAction("粘贴");QAction* new_foldder = new QAction("新建");menu->addAction(check);menu->addAction(refresh);menu->addAction(stick);menu->addAction(new_foldder);//点击右键显示菜单connect(this, &QWidget::customContextMenuRequested,this,&RightButton::OnRightButton);}void RightButton::OnRightButton(QPoint pos){menu->exec(QCursor::pos());}