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   源码介绍

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using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.ServiceProcess;
namespace System
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.GroupBox groupBox1;
		private System.Windows.Forms.ListBox listBox1;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button button2;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();

			//
			// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
			//
		}

		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows 窗体设计器生成的代码
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{
			this.groupBox1 = new System.Windows.Forms.GroupBox();
			this.listBox1 = new System.Windows.Forms.ListBox();
			this.button1 = new System.Windows.Forms.Button();
			this.button2 = new System.Windows.Forms.Button();
			this.groupBox1.SuspendLayout();
			this.SuspendLayout();
			// 
			// groupBox1
			// 
			this.groupBox1.Controls.Add(this.button2);
			this.groupBox1.Controls.Add(this.listBox1);
			this.groupBox1.Controls.Add(this.button1);
			this.groupBox1.Location = new System.Drawing.Point(8, 8);
			this.groupBox1.Name = "groupBox1";
			this.groupBox1.Size = new System.Drawing.Size(288, 160);
			this.groupBox1.TabIndex = 1;
			this.groupBox1.TabStop = false;
			this.groupBox1.Text = "系统服务列表";
			// 
			// listBox1
			// 
			this.listBox1.ItemHeight = 12;
			this.listBox1.Location = new System.Drawing.Point(8, 16);
			this.listBox1.Name = "listBox1";
			this.listBox1.Size = new System.Drawing.Size(272, 100);
			this.listBox1.TabIndex = 2;
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(24, 128);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(112, 23);
			this.button1.TabIndex = 1;
			this.button1.Text = "获取系统服务";
			this.button1.Click  = new System.EventHandler(this.button1_Click);
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(144, 128);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(120, 23);
			this.button2.TabIndex = 3;
			this.button2.Text = "获取指定服务类型";
			this.button2.Click  = new System.EventHandler(this.button2_Click);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(304, 174);
			this.Controls.Add(this.groupBox1);
			this.MaximizeBox = false;
			this.Name = "Form1";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "演示获取系统服务";
			this.groupBox1.ResumeLayout(false);
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void button1_Click(object sender, System.EventArgs e)
		{//获取系统服务
		   this.listBox1.Items.Clear();
			//检索计算机上的所有服务
		   ServiceController []MyServices= ServiceController.GetServices();
			//将服务的名称添加到ListBox中
			for (int i = 0; i <MyServices.Length; i  )
			{
				this.listBox1.Items.Add(MyServices[i].ServiceName);
			}
		}
		private void button2_Click(object sender, System.EventArgs e)
		{//获取指定服务类型
			string MyText=this.listBox1.Text;
			if(MyText.Length<1)
			{
				MessageBox.Show("请获取系统服务后选择服务！","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
				return;
			}
			try
			{
				System.ServiceProcess.ServiceController MyService = new System.ServiceProcess.ServiceController();
				MyService.ServiceName=MyText;
				switch((int)MyService.ServiceType)
				{
					case 4:
						MessageBox.Show(MyText "：用于需要自己的驱动程序的硬件设备的服务。","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
						break;
					case 2:
						MessageBox.Show(MyText "：文件系统驱动程序，也是“内核”(Kernel) 设备驱动程序。","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
						break;
					case 256:
						MessageBox.Show(MyText "：可与桌面通讯的服务。","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
						break;
					case 1:
						MessageBox.Show(MyText "：“内核”(Kernel) 设备驱动程序，如硬盘或其他低级别硬件设备驱动程序。","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
						break;
					case 8:
						MessageBox.Show(MyText "：文件系统驱动程序，用于在启动时确定系统中存在的文件系统。","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
						break;
					case 16:
						MessageBox.Show(MyText "：Win32 程序，可由“服务控制器”启动，并遵守服务控制协议。此类 Win32 服务单独运行在一个进程中。","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
						break;
					case 32:
						MessageBox.Show(MyText "：Win32 服务，可与其他 Win32 服务共享进程。","信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
						break;
				}				
			}
			catch(Exception Err)
			{
				MessageBox.Show("启动服务发生错误：" Err.Message,"信息提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
			}
		}

	}
}