QT 系统托盘练习

╰半橙微兮° 2022-05-25 10:20 289阅读 0赞

### **QT 系统托盘练习** ###

一、简述

QT 系统托盘练习，在系统托盘上添加右键菜单

二、效果

![20180512215532547][]![20180512215542630][]

三、工程结构

![20180512215608866][]

四、源代码

TextTray.pro文件

QT += widgets gui
    
    HEADERS += \
        mymainwindow.h
    
    SOURCES += \
        mymainwindow.cpp \
        main.cpp

mymainwindow.h文件

#ifndef MYMAINWINDOW_H
    #define MYMAINWINDOW_H
    
    #include <QMenu>
    #include <QMainWindow>
    #include <QMouseEvent>
    #include <QSystemTrayIcon>
    
    class MyMainWindow : public QMainWindow
    {
        Q_OBJECT
    public:
        explicit MyMainWindow(QWidget *parent = 0);
    public slots:
        void TrayClick(QSystemTrayIcon::ActivationReason);//托盘点击事件
    protected:
        void mousePressEvent(QMouseEvent *e);//重写鼠标按下事件
    private:
        QSystemTrayIcon* _tray;//系统托盘
        QMenu* _menu;//菜单
    
    };
    
    #endif // MYMAINWINDOW_H

mymainwindow.cpp文件

#include "mymainwindow.h"
    
    MyMainWindow::MyMainWindow(QWidget *parent) :
        QMainWindow(parent)
    {
    
        _tray = new QSystemTrayIcon(this);//创建一个系统托盘
        // _tray->setIcon(QIcon("../text.ico"));//设置图标
        _tray->setToolTip("This is a test");//鼠标移到上面时的文本提示
        _menu = new QMenu(this);//创建菜单
        QAction* exitAction = new QAction("&退出",this);//创建退出动作
        _menu->addAction(exitAction);//将退出动作添加到菜单
        _tray->setContextMenu(_menu);//设置系统托盘的菜单
        _tray->show();//将系统托盘show出来
    
        //点击系统托盘图标触发事件
        connect(_tray, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),this, SLOT(TrayClick(QSystemTrayIcon::ActivationReason)));
        //点击菜单上的“退出”，触发事件
        connect(exitAction,SIGNAL(triggered()),this,SLOT(close()));
    }
    
    void MyMainWindow::TrayClick(QSystemTrayIcon::ActivationReason reason)
    {
        if(reason == QSystemTrayIcon::Trigger)//点击系统托盘图标
        {
            if(this->isHidden())//如果是隐藏时点击则显示
            {
                this->show();
            }
            else//如果是显示时点击则隐藏
            {
                this->hide();
            }
        }
    }
    
    void MyMainWindow::mousePressEvent(QMouseEvent *e)
    {
        if(e->button() == Qt::RightButton)//按下鼠标右键
        {
             _menu->exec(QCursor::pos());//在光标位置show出菜单
        }
    }

main.cpp文件

#include <QApplication>
    #include "mymainwindow.h"
    
    int main(int argc,char* argv[])
    {
        QApplication app(argc,argv);
        MyMainWindow w;
        w.setWindowTitle("测试系统托盘");//程序标题
        w.show();//show出窗体
        return app.exec();
    }

[20180512215532547]: https://img-blog.csdn.net/20180512215532547
[20180512215542630]: /images/20220525/b87e3005ceaf4530a0421358bd31a466.png
[20180512215608866]: /images/20220525/ee1972265dde46e7b98ae9432780caf6.png