C#下实现动态系统托盘图标

System.Windows.Fomrs.NotifyIcon类
System.Windows.Forms.ContextMenu类
System.Windows.Forms.MenuItem类
System.Windows.Forms.Label类
System.Windows.Forms.Timer类

private Icon m_Icon1;
private Icon m_Icon2;
private bool m_bFlag;
private bool m_bShowWnd;

public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
m_bFlag=true;
m_bShowWnd=true;

try
{
m_Icon1 = new Icon("Icon1.ico");//导入图标文件
m_Icon2 = new Icon("Icon2.ico");
}
catch ( Exception e )
{
MessageBox.Show("Error " + e.Message,"Animate Tray - Error");
menuItem2.Enabled = false;
menuItem3.Enabled = false;
}
}

添加menuItem1、menuItem2、menuItem3、m_trayIcon的Click事件，消息处理函数如下：
private void menuItem1_Click(object sender, System.EventArgs e)


private void menuItem2_Click(object sender, System.EventArgs e)


private void menuItem3_Click(object sender, System.EventArgs e)


private void m_trayIcon_Click(object sender, System.EventArgs e)
{
if(m_bShowWnd == true)//隐藏主界面
{
this.Visible = false;
m_bShowWnd = false;
}
else//显示主界面
{
this.Visible = true;
m_bShowWnd = true;
}
}

private void timer1_Tick(object sender, System.EventArgs e)
{
if ( m_Icon1 != null && m_Icon2 != null ) //如果两个图标文件都被正确载入
{
//只要timer1被启动，则在两个图标之间不断进行选择变换，实现动画效果
if ( m_bFlag == true )
{
m_trayIcon.Icon = m_Icon2;
m_bFlag = false;
}
else
{
m_trayIcon.Icon = m_Icon1;
m_bFlag = true;
}
}
}