QT 托盘

最新推荐文章于 2023-09-13 15:33:12 发布

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本文介绍如何使用Qt创建带有系统托盘图标的程序，并实现托盘图标的鼠标点击响应及右键菜单功能。

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#include <QtGui>
 
class myclass: public QWidget
{
public:
    myclass();
private:
    QSystemTrayIcon *trayIcon;
};
 
myclass::myclass()
{
    QIcon icon = QIcon(":/logo.png");
    trayIcon = new QSystemTrayIcon(this);
    trayIcon->setIcon(icon);
    trayIcon->setToolTip(tr("子曰USay"));
    QString titlec=tr("子曰USay");
    QString textc=tr("子曰USay：给你神一般的体验");
    trayIcon->show();
    trayIcon->showMessage(titlec,textc,QSystemTrayIcon::Information,5000);
}
 
int main(int argc,char **argv)
{
    QApplication testc(argc,argv);
 
    myclass newc;
    newc.show();
 
    return testc.exec();
}

接下来，添加一些代码，使托盘能够响应鼠标的单机双击时间，并且用鼠标右键单击托盘图标时，能够弹出操作菜单，并执行相应的操作，效果如下：

Qt实现托盘程序

实现起来非常简单，main函数没有什么变化，myclass类如下：

class myclass: public QWidget
{
public:
    myclass();
private:
    QSystemTrayIcon *trayIcon;
    QAction *minimizeAction;
    QAction *restoreAction;
    QAction *quitAction;
    QMenu   *trayIconMenu;
 
private slots:
    void trayiconActivated(QSystemTrayIcon::ActivationReason reason);
 
};
 
myclass::myclass()
{
    //创建托盘图标
    QIcon icon = QIcon(":/logo.png");
    trayIcon = new QSystemTrayIcon(this);
    trayIcon->setIcon(icon);
    trayIcon->setToolTip(tr("子曰USay"));
    QString titlec=tr("子曰USay");
    QString textc=tr("子曰USay：给你神一般的体验");
    trayIcon->show();
 
    //弹出气泡提示
    trayIcon->showMessage(titlec,textc,QSystemTrayIcon::Information,5000);
 
    //添加单/双击鼠标相应
    connect(trayIcon,SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
            this,SLOT(trayiconActivated(QSystemTrayIcon::ActivationReason)));
 
    //创建监听行为
    minimizeAction = new QAction(tr("最小化 (&I)"), this);
    connect(minimizeAction, SIGNAL(triggered()), this, SLOT(hide()));
    restoreAction = new QAction(tr("还原 (&R)"), this);
    connect(restoreAction, SIGNAL(triggered()), this, SLOT(showNormal()));
    quitAction = new QAction(tr("退出 (&Q)"), this);
    connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 
    //创建右键弹出菜单
    trayIconMenu = new QMenu(this);
    trayIconMenu->addAction(minimizeAction);
    trayIconMenu->addAction(restoreAction);
    trayIconMenu->addSeparator();
    trayIconMenu->addAction(quitAction);
    trayIcon->setContextMenu(trayIconMenu);
}
 
void myclass::trayiconActivated(QSystemTrayIcon::ActivationReason reason)
{
    switch (reason)
    {
    case QSystemTrayIcon::Trigger:
        //单击托盘图标
    case QSystemTrayIcon::DoubleClick:
        //双击托盘图标
        this->showNormal();
        this->raise();
        break;
    default:
        break;
    }
}