Qt系统托盘图标

最新推荐文章于 2024-09-14 10:12:47 发布

xiaobai_cpp

最新推荐文章于 2024-09-14 10:12:47 发布

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分类专栏： Qt

本文链接：https://blog.csdn.net/xiaobai_cpp/article/details/125849767

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借用了腾讯视频的ico图标

在这里插入图片描述

头文件

#include <QWidget>
class QAction;
class QMenu;
class QSystemTrayIcon;
class Widget : public QWidget
{
    Q_OBJECT

public:
    Widget(QWidget *parent = nullptr);
    ~Widget();

   QSystemTrayIcon *trayIcon = nullptr;

public slots:
    void iconActivated(QSystemTrayIcon::ActivationReason reason);

protected:
    void closeEvent(QCloseEvent *event);

};

源文件

#include <QMenu>
#include <QAction>
#include <QSystemTrayIcon>
Widget::Widget(QWidget *parent)
    : QWidget(parent)
{
    setMinimumSize(600,400);
    if (QSystemTrayIcon::isSystemTrayAvailable())      //判断系统是否支持系统托盘图标
    {
        QAction *miniSizeAction = new QAction("最小化(&N)",this);
        QAction * maxSizeAction = new QAction("最大化(&X)",this);
        QAction * restoreWinAction = new QAction("还 原(&R)",this);
        QAction *quitAction = new QAction("退出(&Q)",this);
        connect(miniSizeAction,SIGNAL(triggered()),this,SLOT(hide()));
        connect(maxSizeAction,SIGNAL(triggered()),this,SLOT(showMaximized()));
        connect(restoreWinAction,SIGNAL(triggered()),this,SLOT(showNormal()));
        connect(quitAction,SIGNAL(triggered()),qApp,SLOT(quit()));

        QMenu * myMenu = new QMenu((QWidget*)QApplication::desktop());
        myMenu->addAction(miniSizeAction);
        myMenu->addAction(maxSizeAction);
        myMenu->addAction(restoreWinAction);
        myMenu->addSeparator();     //加入一个分离符
        myMenu->addAction(quitAction);
        trayIcon = new QSystemTrayIcon(this);
        trayIcon->setIcon(QIcon(":/image/label.ico"));   //设置图标图片
        setWindowIcon(QIcon(":/image/label.ico"));  //把图片设置到窗口上
        trayIcon->setToolTip("Qt托盘");    //托盘时，鼠标放上去的提示信息
        trayIcon->showMessage("Qt系统托盘","显示什么呢?",QSystemTrayIcon::Information,10000);
        trayIcon->setContextMenu(myMenu);     //设置托盘上下文菜单
        trayIcon->show();
        connect(trayIcon,SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
                this,SLOT(iconActivated(QSystemTrayIcon::ActivationReason)));
    }
}

void Widget::iconActivated(QSystemTrayIcon::ActivationReason reason)
{
    switch(reason)
    {
    case QSystemTrayIcon::Trigger:

    case QSystemTrayIcon::DoubleClick:
        showNormal();
        break;
    case QSystemTrayIcon::MiddleClick:
        trayIcon->showMessage("Qt托盘图标","给点提示吧!",QSystemTrayIcon::Information,1000);
        break;
    default:
        break;
    }
}

void Widget::closeEvent(QCloseEvent *event)
{
    if (trayIcon&&trayIcon->isVisible())
    {
        trayIcon->showMessage("Qt托盘","说点啥吧!",QSystemTrayIcon::Information,1000);
        hide(); //关闭时隐藏任务栏
        event->ignore();
    }
    else
        event->accept();
}