Qt 创建托盘图标与菜单

/* hello.h*/

#include <QtGui>
class myclass: public QWidget
{
Q_OBJECT
public:
myclass();
private:
QPushButton *b1;
QSystemTrayIcon *trayIcon;
char *msg;
void showMessage(char *msg);
void createActions();
void createTrayIcon();
QAction *minimizeAction;
QAction *maximizeAction;
QAction *restoreAction;
QAction *quitAction;
QMenu *trayIconMenu;
private slots:
void showM();
void iconActivated(QSystemTrayIcon::ActivationReason reason);
};

 

/*hello.cpp*/

#include <QtGui>
#include "hello.h"
myclass::myclass()
{
QTextCodec::setCodecForTr(QTextCodec::codecForName("GB2312"));
setMinimumSize(200,100);
b1=new QPushButton("hello world",this);
b1->setGeometry(20,20,160,40);
QIcon icon = QIcon("./images/MSNLogo.ico");
setWindowIcon(icon);
trayIcon = new QSystemTrayIcon(this);
trayIcon->setIcon(icon);
trayIcon->setToolTip("a trayicon example");
createActions();
createTrayIcon();
trayIcon->show();
setWindowTitle(tr("Systray"));
connect(trayIcon,SIGNAL(activated(QSystemTrayIcon::ActivationReason)),this,SLOT(iconActivated(QSystemTrayIcon::ActivationReason)));
connect(b1,SIGNAL(clicked()),this,SLOT(showM()));
}

void myclass::showM()
{
QString titlec=tr("slot需要signal相同的参数进行传递");
QString textc=QString::fromLocal8Bit("测试内容单击、双击、中键、按钮");
trayIcon->showMessage(titlec,textc,QSystemTrayIcon::Information,5000);
   }

void myclass::showMessage(char *msg)
{
QString titlec=tr(msg);
QString textc=QString::fromLocal8Bit("测试内容单击、双击、中键、按钮");
trayIcon->showMessage(titlec,textc,QSystemTrayIcon::Information,5000);
   }

void myclass::iconActivated(QSystemTrayIcon::ActivationReason reason)
{
    switch (reason) {
    case QSystemTrayIcon::Trigger:
showMessage("单击");
break;
    case QSystemTrayIcon::DoubleClick:
showMessage("双击啦");
      break;
    case QSystemTrayIcon::MiddleClick:
showMessage("你用的是三轮鼠标还是滚轮鼠标啊");
      break;
    default:
      ;
    }
}

void myclass::createActions()
{
    minimizeAction = new QAction(tr("最小化 (&I)"), this);
    connect(minimizeAction, SIGNAL(triggered()), this, SLOT(hide()));

    maximizeAction = new QAction(tr("最大化 (&X)"), this);
    connect(maximizeAction, SIGNAL(triggered()), this, SLOT(showMaximized()));

    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()));
}

void myclass::createTrayIcon()
{
    trayIconMenu = new QMenu(this);
    trayIconMenu->addAction(minimizeAction);
    trayIconMenu->addAction(maximizeAction);
    trayIconMenu->addAction(restoreAction);
    trayIconMenu->addSeparator();
    trayIconMenu->addAction(quitAction);
    trayIcon->setContextMenu(trayIconMenu);
}

int main(int argc,char **argv)
{
QApplication testc(argc,argv);
myclass newc;
newc.show();
return testc.exec();
}