form1.cs

150个经典的入门学习程序源代码

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Runtime.InteropServices;

namespace Example105_设置系统时间
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Timer timer1;
		private System.Windows.Forms.DateTimePicker dateTimePicker1;
		private System.Windows.Forms.Button button1;
		private System.ComponentModel.IContainer components;

		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 Form Designer generated code
		/// <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.components = new System.ComponentModel.Container();
			this.timer1 = new System.Windows.Forms.Timer(this.components);
			this.dateTimePicker1 = new System.Windows.Forms.DateTimePicker();
			this.button1 = new System.Windows.Forms.Button();
			this.SuspendLayout();
			// 
			// timer1
			// 
			this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
			// 
			// dateTimePicker1
			// 
			this.dateTimePicker1.Format = System.Windows.Forms.DateTimePickerFormat.Time;
			this.dateTimePicker1.Location = new System.Drawing.Point(16, 24);
			this.dateTimePicker1.Name = "dateTimePicker1";
			this.dateTimePicker1.Size = new System.Drawing.Size(96, 21);
			this.dateTimePicker1.TabIndex = 0;
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(16, 56);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(96, 23);
			this.button1.TabIndex = 1;
			this.button1.Text = "SetSystemTime";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(128, 93);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.button1,
																		  this.dateTimePicker1});
			this.Name = "Form1";
			this.Text = "Form1";
			this.Load += new System.EventHandler(this.Form1_Load);
			this.ResumeLayout(false);

		}
		#endregion

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

		[DllImport( "Kernel32.dll" )]
		public static extern void GetLocalTime(SystemTime st );
		[DllImport( "Kernel32.dll" )]
		public static extern void SetLocalTime(SystemTime st );

		[StructLayout( LayoutKind.Sequential)]
		public class SystemTime 
		{
			public ushort wYear; 
			public ushort wMonth; 
			public ushort wDayOfWeek; 
			public ushort wDay; 
			public ushort wHour; 
			public ushort wMinute; 
			public ushort wSecond; 
			public ushort wMilliseconds; 
		}

		private void timer1_Tick(object sender, System.EventArgs e)
		{
			SystemTime st = new SystemTime();
			GetLocalTime(st);
			this.Text="The Date and Time is: " ;
			this.Text=this.Text+st.wHour.ToString()+":";
			this.Text=this.Text+st.wMinute.ToString()+":";
			this.Text=this.Text+st.wSecond.ToString()+".";
			this.Text=this.Text+st.wMilliseconds.ToString();
		}

		private void Form1_Load(object sender, System.EventArgs e)
		{
			this.timer1.Interval=100;
			this.timer1.Enabled=true;
			this.dateTimePicker1.Value=DateTime.Now;
		}

		private void button1_Click(object sender, System.EventArgs e)
		{
			SystemTime st = new SystemTime();
			st.wYear=(ushort)this.dateTimePicker1.Value.Year;
			st.wMonth=(ushort)this.dateTimePicker1.Value.Month;
			st.wDay=(ushort)this.dateTimePicker1.Value.Day;
			st.wHour=(ushort)this.dateTimePicker1.Value.Hour;
			st.wMinute=(ushort)this.dateTimePicker1.Value.Minute;
			st.wSecond=(ushort)this.dateTimePicker1.Value.Second;
			SetLocalTime(st);
		}
	}


}