Qt之任务栏系统托盘图标

http://blog.csdn.net/qivan/article/details/7506306

托盘图标，一个自己脑子出现很久的词，可惜自己都没动手去实现。最近看见的，听见的多了，自己也感兴趣就弄弄了，感觉还蛮简单了。



贴出效果图：













那么多功能，其实就一个类就搞定了，那就是QSystemTrayIcon

头文件（主要 1.声明菜单相关动作 2.声明系统托盘对象，以及相关托盘槽函数 3.关闭事件）

#ifndef SYSTEMTRAYICON_H

#define SYSTEMTRAYICON_H



#include <QMainWindow>

#include <QMenu>

#include <QSystemTrayIcon>

#include <QCloseEvent>

namespace Ui {

class SystemTrayIcon;

}



class SystemTrayIcon : public QMainWindow

{

Q_OBJECT



public:

explicit SystemTrayIcon(QWidget *parent = 0);

~SystemTrayIcon();



void CreatTrayMenu();

void CreatTrayIcon();



QSystemTrayIcon *myTrayIcon;



QMenu *myMenu;



QAction *miniSizeAction;

QAction *maxSizeAction;

QAction *restoreWinAction;

QAction *quitAction;



private:

Ui::SystemTrayIcon *ui;



public slots:

void iconActivated(QSystemTrayIcon::ActivationReason reason);



protected:

void closeEvent(QCloseEvent *event);



};



#endif // SYSTEMTRAYICON_H



源文件（1.创建上下文菜单 2.创建系统托盘，实现相关功能）

#include "SystemTrayIcon.h"

#include "ui_SystemTrayIcon.h"

#include <QSystemTrayIcon>

SystemTrayIcon::SystemTrayIcon(QWidget *parent) :

QMainWindow(parent),

ui(new Ui::SystemTrayIcon)

{

ui->setupUi(this);



CreatTrayIcon();

}



SystemTrayIcon::~SystemTrayIcon()

{

delete ui;

}



void SystemTrayIcon::CreatTrayMenu()

{

miniSizeAction = new QAction("最小化(&N)",this);

maxSizeAction = new QAction("最大化(&X)",this);

restoreWinAction = new QAction("还 原(&R)",this);

quitAction = new QAction("退出(&Q)",this);



this->connect(miniSizeAction,SIGNAL(triggered()),this,SLOT(hide()));

this->connect(maxSizeAction,SIGNAL(triggered()),this,SLOT(showMaximized()));

this->connect(restoreWinAction,SIGNAL(triggered()),this,SLOT(showNormal()));

this->connect(quitAction,SIGNAL(triggered()),qApp,SLOT(quit()));



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);

}



void SystemTrayIcon::CreatTrayIcon()

{

CreatTrayMenu();



if (!QSystemTrayIcon::isSystemTrayAvailable()) //判断系统是否支持系统托盘图标

{

return;

}



myTrayIcon = new QSystemTrayIcon(this);



myTrayIcon->setIcon(QIcon("mytrayIcon.ico")); //设置图标图片

setWindowIcon(QIcon("mytrayIcon.ico")); //把图片设置到窗口上



myTrayIcon->setToolTip("SystemTrayIcon V1.0"); //托盘时，鼠标放上去的提示信息



myTrayIcon->showMessage("SystemTrayIcon","Hi,This is my trayIcon",QSystemTrayIcon::Information,10000);







myTrayIcon->setContextMenu(myMenu); //设置托盘上下文菜单



myTrayIcon->show();

this->connect(myTrayIcon,SIGNAL(activated(QSystemTrayIcon::ActivationReason)),this,SLOT(iconActivated(QSystemTrayIcon::ActivationReason)));

}



void SystemTrayIcon::iconActivated(QSystemTrayIcon::ActivationReason reason)

{

switch(reason)

{

case QSystemTrayIcon::Trigger:



case QSystemTrayIcon::DoubleClick:

showNormal();

break;

case QSystemTrayIcon::MiddleClick:

myTrayIcon->showMessage("SystemTrayIcon","Hi,This is my trayIcon",QSystemTrayIcon::Information,10000);

break;



default:

break;

}

}



void SystemTrayIcon::closeEvent(QCloseEvent *event)

{

if (myTrayIcon->isVisible())

{

myTrayIcon->showMessage("SystemTrayIcon","Hi,This is my trayIcon",QSystemTrayIcon::Information,5000);



hide(); //最小化

event->ignore();

}

else

event->accept();

}



大家有兴趣的话，可以交流交流