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Qt

編輯：關於C

1 添加兩個成員變量
QSystemTrayIcon *trayicon;

QMenu *trayiconMenu;

2 添加一個槽函數用於響應在托盤圖標及托盤菜單上的鼠標點擊操作

void onSystemTrayIconClicked(QSystemTrayIcon::ActivationReason reason);

3 在構造函數中對添加的兩個變量進行初始化

trayicon = new QSystemTrayIcon(this);

//創建QIcon對象，參數是圖標資源，值為項目的資源文件中圖標的地址

QIcon icon("F:/Windows QT/TrayIcon/bottom.png");

trayiconMenu = new QMenu(this);

//為托盤菜單添加菜單項

trayiconMenu->addAction(ui->action_quit);

//為托盤菜單添加分隔符

trayiconMenu->addSeparator();

//將創建的QIcon對象作為系統托盤圖標

trayicon->setIcon(icon);

//顯示托盤圖標

trayicon->show();

//設置系統托盤提示

trayicon->setToolTip(tr("托盤測試"));

//將創建菜單作為系統托盤菜單

trayicon->setContextMenu(trayiconMenu);

//在系統托盤顯示氣泡消息提示

trayicon->showMessage(tr("hahaya"), tr("托盤測試"), QSystemTrayIcon::Information, 5000);

//為系統托盤綁定單擊信號的槽即圖標激活時

connect(trayicon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)), this, SLOT(onSystemTrayIconClicked(QSystemTrayIcon::ActivationReason)));

4 實現槽函數onSystemTrayIconClicked

void MainWindow::onSystemTrayIconClicked(QSystemTrayIcon::ActivationReason reason)

{

switch(reason)

{

//單擊

case QSystemTrayIcon::Trigger:

//雙擊

case QSystemTrayIcon::DoubleClick:

//恢復窗口顯示

this->setWindowState(Qt::WindowActive);

this->show();

break;

default:

break;

}

5 當點擊窗口的關閉按鈕時，將程序托盤，則重寫類的closeEvent函數

void MainWindow::closeEvent(QCloseEvent *event)

{

if(trayicon->isVisible())

{

hide();

event->ignore();

}

6 點擊“退出”菜單的槽函數，點擊退出時托盤

void MainWindow::on_action_quit_triggered()

{

this->hide();

this->close();

}

//mainwindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include <QSystemTrayIcon>
#include <QMenu>
#include <QCloseEvent>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private:

Ui::MainWindow *ui;
private slots:
void on_action_quit_triggered();
void onSystemTrayIconClicked(QSystemTrayIcon::ActivationReason reason);
protected:
void closeEvent(QCloseEvent *event);
private:
QSystemTrayIcon *trayicon;
QMenu *trayiconMenu;
};
#endif // MAINWINDOW_H
//mainwindow.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include <QSystemTrayIcon>
#include <QMenu>
#include <QCloseEvent>
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
private:

Ui::MainWindow *ui;
private slots:
void on_action_quit_triggered();
void onSystemTrayIconClicked(QSystemTrayIcon::ActivationReason reason);
protected:
void closeEvent(QCloseEvent *event);
private:
QSystemTrayIcon *trayicon;
QMenu *trayiconMenu;
};
#endif // MAINWINDOW_H

//mainwindow.cpp
#include <QtGui>
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
trayicon = new QSystemTrayIcon(this);
//創建QIcon對象，參數是圖標資源，值為項目的資源文件中圖標的地址
QIcon icon("F:/Windows QT/TrayIcon/bottom.png");
trayiconMenu = new QMenu(this);
//為托盤菜單添加菜單項
trayiconMenu->addAction(ui->action_quit);
//為托盤菜單添加分隔符
trayiconMenu->addSeparator();
//將創建的QIcon對象作為系統托盤圖標
trayicon->setIcon(icon);
//顯示托盤圖標
trayicon->show();
//設置系統托盤提示
trayicon->setToolTip(tr("托盤測試"));
//將創建菜單作為系統托盤菜單
trayicon->setContextMenu(trayiconMenu);
//在系統托盤顯示氣泡消息提示
trayicon->showMessage(tr("hahaya"), tr("托盤測試"), QSystemTrayIcon::Information, 5000);
//為系統托盤綁定單擊信號的槽即圖標激活時
connect(trayicon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)), this, SLOT(onSystemTrayIconClicked(QSystemTrayIcon::ActivationReason)));
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::onSystemTrayIconClicked(QSystemTrayIcon::ActivationReason reason)
{
switch(reason)
{
//單擊
case QSystemTrayIcon::Trigger:
//雙擊
case QSystemTrayIcon::DoubleClick:
      //恢復窗口顯示
      this->setWindowState(Qt::WindowActive);
      this->show();
      break;
default:
      break;
}
}
void MainWindow::closeEvent(QCloseEvent *event)
{
if(trayicon->isVisible())
{
      hide();
      event->ignore();
}
}
void MainWindow::on_action_quit_triggered()
{
this->hide();
this->close();
}
//mainwindow.cpp
#include <QtGui>
#include "mainwindow.h"
#include "ui_mainwindow.h"
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
trayicon = new QSystemTrayIcon(this);
//創建QIcon對象，參數是圖標資源，值為項目的資源文件中圖標的地址
QIcon icon("F:/Windows QT/TrayIcon/bottom.png");
trayiconMenu = new QMenu(this);
//為托盤菜單添加菜單項
trayiconMenu->addAction(ui->action_quit);
//為托盤菜單添加分隔符
trayiconMenu->addSeparator();
//將創建的QIcon對象作為系統托盤圖標
trayicon->setIcon(icon);
//顯示托盤圖標
trayicon->show();
//設置系統托盤提示
trayicon->setToolTip(tr("托盤測試"));
//將創建菜單作為系統托盤菜單
trayicon->setContextMenu(trayiconMenu);
//在系統托盤顯示氣泡消息提示
trayicon->showMessage(tr("hahaya"), tr("托盤測試"), QSystemTrayIcon::Information, 5000);
//為系統托盤綁定單擊信號的槽即圖標激活時
connect(trayicon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)), this, SLOT(onSystemTrayIconClicked(QSystemTrayIcon::ActivationReason)));
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::onSystemTrayIconClicked(QSystemTrayIcon::ActivationReason reason)
{
switch(reason)
{
//單擊
case QSystemTrayIcon::Trigger:
//雙擊
case QSystemTrayIcon::DoubleClick:
      //恢復窗口顯示
      this->setWindowState(Qt::WindowActive);
      this->show();
      break;
default:
      break;
}
}
void MainWindow::closeEvent(QCloseEvent *event)
{
if(trayicon->isVisible())
{
      hide();
      event->ignore();
}
}
void MainWindow::on_action_quit_triggered()
{
this->hide();
this->close();
}

//main.cpp
#include <QtGui/QApplication>
#include <QTextCodec>
#include "mainwindow.h"
int main(int argc, char *argv[])
{
QTextCodec::setCodecForTr(QTextCodec::codecForLocale());
QApplication a(argc, argv);
MainWindow w;
w.show();
return a.exec();
}
//main.cpp
#include <QtGui/QApplication>
#include <QTextCodec>
#include "mainwindow.h"
int main(int argc, char *argv[])
{
QTextCodec::setCodecForTr(QTextCodec::codecForLocale());
QApplication a(argc, argv);
MainWindow w;
w.show();
return a.exec();
}