Qt 实现系统托盘,托盘菜单,托盘消息
Posted GreenArrowMan
tags:
篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了Qt 实现系统托盘,托盘菜单,托盘消息相关的知识,希望对你有一定的参考价值。
欢迎关注公众号可以查看更多完整文章
Qt 实现系统托盘,托盘菜单,托盘消息
系统托盘就是运行的某个程序在电脑右下角的小图标,相信大家都很熟悉。QT 提供了QSystemTrayIcon类用于实现程序的托盘。QT提供了托盘示例,在examples文件夹下面,大家可以自行研究。 下面是我自己进行实现的一个示例,主要实现的功能: 1.托盘显示,托盘图标添加; 2.托盘激活事件分发; 3.托盘菜单; 4.托盘消息,点击消息,显示主窗口。 想要显示 托盘图标,首先需要创建一个QSystemTrayIcon对象。可以给此对象设置一些信息,比如ToolTip,比如图标。需要调用show,托盘才能显示。m_systemTray = new QSystemTrayIcon(this);
m_systemTray->setIcon(QIcon(":/SystemTray/Resources/ico.png"));
m_systemTray->setToolTip("SystemTray Program");
m_systemTray->show();
给程序添加图片资源,需要编辑.qrc文件,将图片所在的路径添加进来就可以:
<RCC>
<qresource prefix="SystemTray">
<file>Resources/ico.png</file>
</qresource>
</RCC>
效果显示:
托盘激活事件,包括点击,双击,右键等。QSystemTrayIcon提供了信号给我们使用,信号的参数是激活类型,我们连接自己的槽函数就可以对类型进行分支,从而执行对应的操作:
Constant Value Description
QSystemTrayIcon::Unknown 0 Unknown reason
QSystemTrayIcon::Context 1 The context menu for the system tray entry was requested
QSystemTrayIcon::DoubleClick 2 The system tray entry was double clicked
QSystemTrayIcon::Trigger 3 The system tray entry was clicked
QSystemTrayIcon::MiddleClick 4 The system tray entry was clicked with the middle mouse button
连接我们自己的槽函数:
connect(m_systemTray, &QSystemTrayIcon::activated, this, &SystemTray::activeTray);//点击托盘,执行相应的动作
在槽函数中,分别调用了不同的函数,进行不同的操作:
void SystemTray::activeTray(QSystemTrayIcon::ActivationReason reason)
switch (reason)
case QSystemTrayIcon::Context:
showMenu();
break;
case QSystemTrayIcon::DoubleClick:
showWindow();
break;
case QSystemTrayIcon::Trigger:
showMessage();
break;
要实现菜单,我们需要创建一个QMenu并创建自己需要的QAction,添加到QMenu里面,将QMenu设置给QSystemTrayIcon既可。我们可以给每个QAction连接不同的槽函数,执行不同的操作。
m_menu = new QMenu(this);
m_action1 = new QAction(m_menu);
m_action2 = new QAction(m_menu);
m_action1->setText("Show Window");
m_action2->setText("Show Message");
m_menu->addAction(m_action1);
m_menu->addAction(m_action2);
connect(m_action1, &QAction::triggered, this, &SystemTray::showWindow);
connect(m_action2, &QAction::triggered, this, &SystemTray::showMessage);
m_systemTray->setContextMenu(m_menu);
菜单效果:
消息显示也很简单,QSystemTrayIcon提供了showMessage函数来显示消息窗口,此函数有四个参数,分别如下:
void SystemTray::showMessage()
m_systemTray->showMessage("Information",//消息窗口标题
"There is a new message!",//消息内容
QSystemTrayIcon::MessageIcon::Information,//消息窗口图标
5000);//消息窗口显示时长
消息效果:
QSystemTrayIcon提供了messageClicked信号,点击消息,可以触发我们自己连接的槽函数,执行我们想要实现的动作:
connect(m_systemTray, &QSystemTrayIcon::messageClicked, this, &SystemTray::showWindow);//点击消息框,显示主窗口
主窗口显示:
程序一开始主界面是隐藏的,双击托盘可以显示主窗口。 完整代码:
#ifndef SYSTEMTRAY_H
#define SYSTEMTRAY_H
#include <QtWidgets/QWidget>
#include <QSystemTrayIcon>
#include <QMenu>
class SystemTray : public QWidget
Q_OBJECT
public:
SystemTray(QWidget *parent = 0);
~SystemTray();
protected:
void activeTray(QSystemTrayIcon::ActivationReason reason);
void showWindow();//显示窗体
void showMessage();//消息框
void showMenu();//显示菜单
private:
QSystemTrayIcon *m_systemTray;
QMenu *m_menu;
QAction *m_action1;
QAction *m_action2;
;
#endif // SYSTEMTRAY_H
#include "systemtray.h"
SystemTray::SystemTray(QWidget *parent)
: QWidget(parent)
m_systemTray = new QSystemTrayIcon(this);
m_menu = new QMenu(this);
m_action1 = new QAction(m_menu);
m_action2 = new QAction(m_menu);
m_action1->setText("Show Window");
m_action2->setText("Show Message");
m_menu->addAction(m_action1);
m_menu->addAction(m_action2);
connect(m_action1, &QAction::triggered, this, &SystemTray::showWindow);
connect(m_action2, &QAction::triggered, this, &SystemTray::showMessage);
m_systemTray->setContextMenu(m_menu);
m_systemTray->setIcon(QIcon(":/SystemTray/Resources/ico.png"));
m_systemTray->setToolTip("SystemTray Program");
m_systemTray->show();
connect(m_systemTray, &QSystemTrayIcon::activated, this, &SystemTray::activeTray);//点击托盘,执行相应的动作
connect(m_systemTray, &QSystemTrayIcon::messageClicked, this, &SystemTray::showWindow);//点击消息框,显示主窗口
SystemTray::~SystemTray()
void SystemTray::activeTray(QSystemTrayIcon::ActivationReason reason)
switch (reason)
case QSystemTrayIcon::Context:
showMenu();
break;
case QSystemTrayIcon::DoubleClick:
showWindow();
break;
case QSystemTrayIcon::Trigger:
showMessage();
break;
void SystemTray::showMenu()
m_menu->show();
void SystemTray::showWindow()
this->show();
void SystemTray::showMessage()
m_systemTray->showMessage("Information",//消息窗口标题
"There is a new message!",//消息内容
QSystemTrayIcon::MessageIcon::Information,//消息窗口图标
5000);//消息窗口显示时长
#include "systemtray.h"
#include <QtWidgets/QApplication>
int main(int argc, char *argv[])
QApplication a(argc, argv);
SystemTray w;
//w.show();
w.hide();//初始化时,主窗口隐藏,便于观察效果
return a.exec();
<RCC>
<qresource prefix="SystemTray">
<file>Resources/ico.png</file>
</qresource>
</RCC>
交流 QQ:1245178753
本文地址:
Qt 实现系统托盘,托盘菜单,托盘消息_GreenArrowMan-CSDN博客-CSDN博客_qt 托盘
源码下载:
Qt实现系统托盘,托盘菜单,托盘消息.zip_qt系统托盘-C++代码类资源-CSDN下载以上是关于Qt 实现系统托盘,托盘菜单,托盘消息的主要内容,如果未能解决你的问题,请参考以下文章