C＃ 如何将某一个应用程序最小化到任务托盘！

楼主你说的是编程?
如果不是:这要取决于你使用的应用程序有没有最小化到托盘的功能.
如果是:

C#编写最小化时隐藏为任务栏图标的 Window appllication.

1.设置WinForm窗体属性showinTask=false

2.加notifyicon控件notifyIcon1，为控件notifyIcon1的属性Icon添加一个icon图标。

3.添加窗体最小化事件(首先需要添加事件引用)：

this.SizeChanged += new System.EventHandler(this.Form1_SizeChanged);

//上面一行是主窗体InitializeComponent()方法中需要添加的引用

private void Form1_SizeChanged(object sender, EventArgs e)
{
if(this.WindowState == FormWindowState.Minimized)
{
this.Hide();
this.notifyIcon1.Visible=true;
}
}

4.添加点击图标事件(首先需要添加事件引用)：

private void notifyIcon1_Click(object sender, EventArgs e)
{
this.Visible = true;
this.WindowState = FormWindowState.Normal;
this.notifyIcon1.Visible = false;
}

5.可以给notifyIcon添加右键菜单：

主窗体中拖入一个ContextMenu控件NicontextMenu，点中控件，在上下文菜单中添加菜单，notifyIcon1的ContextMenu行为中选中NicontextMenu 作为上下文菜单。

this.notifyIcon1 = new System.Windows.Forms.NotifyIcon(this.components);
this.NicontextMenu = new System.Windows.Forms.ContextMenu();
this.menuItem_Hide = new System.Windows.Forms.MenuItem();
this.menuItem_Show = new System.Windows.Forms.MenuItem();
this.menuItem_Aubot = new System.Windows.Forms.MenuItem();
this.menuItem_Exit = new System.Windows.Forms.MenuItem();

this.notifyIcon1.ContextMenu = this.NicontextMenu;
this.notifyIcon1.Icon = ((System.Drawing.Icon)(resources.GetObject( "NotifyIcon.Icon ")));
this.notifyIcon1.Text = " ";
this.notifyIcon1.Visible = true;
this.notifyIcon1.DoubleClick += new System.EventHandler(this.notifyIcon1_DoubleClick);
this.notifyIcon1.Click += new System.EventHandler(this.notifyIcon1_Click);

this.NicontextMenu.MenuItems.AddRange(

new System.Windows.Forms.MenuItem[]
{
this.menuItem_Hide,
this.menuItem_Show,
this.menuItem_Aubot,
this.menuItem_Exit
}
);

//
// menuItem_Hide
//
this.menuItem_Hide.Index = 0;
this.menuItem_Hide.Text = "隐藏 ";
this.menuItem_Hide.Click += new System.EventHandler(this.menuItem_Hide_Click);
//
// menuItem_Show
//
this.menuItem_Show.Index = 1;
this.menuItem_Show.Text = "显示 ";
this.menuItem_Show.Click += new System.EventHandler(this.menuItem_Show_Click);
//
// menuItem_Aubot
//
this.menuItem_Aubot.Index = 2;
this.menuItem_Aubot.Text = "关于 ";
this.menuItem_Aubot.Click += new System.EventHandler(this.menuItem_Aubot_Click);
//
// menuItem_Exit
//
this.menuItem_Exit.Index = 3;
this.menuItem_Exit.Text = "退出 ";
this.menuItem_Exit.Click += new System.EventHandler(this.menuItem_Exit_Click);

protected override void OnClosing(CancelEventArgs e)
{
this.ShowInTaskbar = false;
this.WindowState = FormWindowState.Minimized;
e.Cancel = true;
}
protected override void OnClosing(CancelEventArgs e)
{
//this.ShowInTaskbar = false;
this.WindowState = FormWindowState.Minimized;
e.Cancel = true;
}

private void CloseCtiServer()
{
timer.Enabled = false;
DJ160API.DisableCard();
this.NotifyIcon.Visible = false;
this.Close();
this.Dispose();
Application.Exit();
}

private void HideCtiServer()
{
this.Hide();
}

private void ShowCtiServer()
{
this.Show();
this.WindowState = FormWindowState.Normal;
this.Activate();

}
private void CtiManiForm_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
this.CloseCtiServer();
}

private void menuItem_Show_Click(object sender, System.EventArgs e)
{
this.ShowCtiServer();
}

private void menuItem_Aubot_Click(object sender, System.EventArgs e)
{

}

private void menuItem_Exit_Click(object sender, System.EventArgs e)
{
this.CloseCtiServer();
}

private void menuItem_Hide_Click(object sender, System.EventArgs e)
{
this.HideCtiServer();
}

private void CtiManiForm_SizeChanged(object sender, System.EventArgs e)
{
if(this.WindowState == FormWindowState.Minimized)
{
this.HideCtiServer();
}
}

private void notifyIcon1_DoubleClick(object sender,System.EventArgs e)
{
this.ShowCtiServer();
}

为你的窗体添加一个notifyIcon按钮，然后在和窗体绑定，很自然上面也可以加一些菜单，这个控件很容易理解，希望继续加油！

不能除非那个应用程序支持不然不能的！如果你要将其隐藏到还可以去网上下个隐藏程序的软件就可以办到！·

在窗体中加入contextMenu控件即可，再加入notifyIcon1控件可设置在任务托盘中的图标

1.设置WinForm窗体属性ShowInTaskbar=false
this.ShowInTaskbar = false;
2.加NotifyIcon控件notifyIcon1，为控件notifyIcon1的属性Icon添加一个icon图标。
3.添加窗体最小化事件(首先需要添加事件引用)：
private void Form1_SizeChanged(object sender, EventArgs e)
{
if (this.WindowState == FormWindowState.Minimized)
{
this.Hide();
this.notifyIcon1.Visible = true;
}

}
4.添加点击图标事件(首先需要添加事件引用)：
private void notifyIcon1_Click(object sender, EventArgs e)
{
this.Visible = true;
this.WindowState = FormWindowState.Normal;
this.notifyIcon1.Visible = false;

}