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用C#编写windows屏幕保护程序

Visual C#是微软公司推出的新一代程序开发语言,是微软.Net框架中的一个重要组成部分。屏幕保护程序是以scr为扩展名的标准Windows可执行程序。屏幕保护程序不仅可以延长显示器的使用寿命,还可以保护私人信息。本文向大家介绍一个.Net平台上用C#编写的一个动态文本及图形的屏幕保护程序。    一、具体实现步骤:    (1)在Visual Studio.Net下新建一个C#的Windows应用程序工程,不妨命名为screen_saver。    (2)现在我们来设计程序的主界面:    先将窗体的Name属性设置为screen、Text属性设置为空,BackColor属性设置为Black、Size属性设置为(800, 600)、 ControlBox、MaximizeBox、MinimizeBox、ShowInTaskbar属性设置均为false、FormBorderStyle属性设置为None。再往窗体上添加Label控件、PictureBox控件、Timer控件各一个。将Label控件的Name设置为word、Text属性设置为空;将PictureBox控件的Name设置为picture1、Image设置为一个预知图片;将Timer控件的Name设置为timerSaver、Enabled 属性设为true、Interval属性设为5。    (3)现在我们开始编写完整程序代码部分://导入使用到的名称空间 using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; file://     namespace screen_saver     { /// /// Form1 的摘要说明。 /// public class screen : System.Windows.Forms.Form {   file://加入私有成员变量   private System.ComponentModel.IContainer components;   private int iSpeed = 2;   private string str="福建南纺股份公司计算机中心";   file://定义文本字体及大小   private System.Drawing.Font TextStringFont = new System.Drawing.Font ("宋体”, 10,System.Drawing.FontStyle.Bold);   private Color TextStringcolor =System.Drawing.Color.Yellow; file://文本字体颜色   private int iDistance;   private int ixStart= 0;   private int iyStart= 0;   private int speed;   private int x1,y1;   int width1,height1;   private System.Windows.Forms.Timer timerSaver;  file://计时器控件   private System.Windows.Forms.PictureBox picture1; file://图形控件   private System.Windows.Forms.Label word; file://文本显示控件 /// /// 必需的设计器变量。 ///   public screen()   {   file://   // Windows 窗体设计器支持所必需的   file://    InitializeComponent();    word.Font=TextStringFont;    word.ForeColor=TextStringcolor;    System.Windows.Forms.Cursor.Hide(); file://隐藏光标    file://    // TODO: 在 InitializeComponent 调用后添加任何构造函数代码    file://   }   ///   /// 清理所有正在使用的资源。   ///   protected override void Dispose( bool disposing )   {    if( disposing )    {     if (components != null)     {      components.Dispose();     }    }    base.Dispose( disposing );   }   #region Windows Form Designer generated code   ///   /// 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。   ///   private void InitializeComponent() file://初始化程序中使用到的组件   {    this.components = new System.ComponentModel.Container();    System.Resources.ResourceManager resources = new   system.Resources.ResourceManger(typeof(screen));          this.word = new System.Windows.Forms.Label();    this.timerSaver = new System.Windows.Forms.Timer(this.components);    this.picture1 = new System.Windows.Forms.PictureBox();    this.SuspendLayout();    //    // 设置文本显示控件(word)属性    this.word.ForeColor = System.Drawing.Color.Yellow;    this.word.Location = new System.Drawing.Point(624, 8);    this.word.Name = "word";    this.word.Size = new System.Drawing.Size(168, 16);    this.word.TabIndex = 0;    this.word.Visible = false;    //    // 设置计时器控件(timerSaver)属性    this.timerSaver.Enabled = true;    this.timerSaver.Interval = 5;    this.timerSaver.Tick += new System.EventHandler(this.timerSaver_Tick);    //    // 设置图片控件(picture1)属性    this.picture1.Image = ((System.Drawing.Bitmap)(resources.GetObject("picture1.Image")));    this.picture1.Location = new System.Drawing.Point(800, 600);    this.picture1.Name = "picture1";    this.picture1.Size = new System.Drawing.Size(304, 224);    this.picture1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;    this.picture1.TabIndex = 1;    this.picture1.TabStop = false;    //    // 设置窗体(screen)属性    this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);    this.BackColor = System.Drawing.Color.Black;    this.ClientSize = new System.Drawing.Size(800, 600);    this.ControlBox = false;    this.Controls.AddRange(new System.Windows.Forms.Control[] {this.picture1,this.word});    this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;    this.KeyPreview = true;    this.MaximizeBox = false;    this.MinimizeBox = false;    this.Name = "screen";    this.ShowInTaskbar = false;    this.StartPosition = System.Windows.Forms.FormStartPosition.Manual;    this.WindowState = System.Windows.Forms.FormWindowState.Maximized;    file://键盘按下响应事件    this.KeyDown += new System.Windows.Forms.KeyEventHandler(this.screen_KeyDown);              file://鼠标按下响应事件      this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.screen_MouseDown);    file://窗体启动调用事件    this.Load += new System.EventHandler(this.Form1_Load);              file://鼠标移动响应事件    this.MouseMove += new System.Windows.Forms.MouseEventHandler(this.screen_MouseMove);    this.ResumeLayout(false);   }   #endregion   ///   /// 应用程序的主入口点。   ///   [STAThread]   static void Main(string[] args)   {    if(args.Length==1)     if(args[0].Substring(0,2).Equals("/c"))     {      MessageBox.Show("没有设置项功能","C# Screen Saver");      Application.Exit();     }     else if(args[0]=="/s")     Application.Run(new screen());    else if(args[0]=="/a")    {     MessageBox.Show("没有口令功能","C# Screen saver");     Application.Exit();    }    else    Application.Run(new screen());   }   private void Form1_Load(object sender, System.EventArgs e)   {    speed=0;    System.Drawing.Rectangle ssWorkArea=System.Windows.Forms.Screen.GetWorkingArea(this);    file://屏幕显示区域    width1=ssWorkArea.Width; file://屏幕宽度    height1=ssWorkArea.Height; file://屏幕高度   }   private void timerSaver_Tick(object sender, System.EventArgs e) file://计时器响应事件   {    word.Visible=true;    word.Text=str;    word.Height=word.Font.Height; file://设置文本的高度    word.Width=word.Text.Length*(int)word.Font.Size*2; file://设置文本的宽度    PlayScreenSaver();   }   private void PlayScreenSaver() file://自定义函数   {    file://下面设置文本显示框的位置坐标    word.Location =new System.Drawing.Point(width1-iDistance,word.Location.Y);    word.Visible=true; file://设置为可见    iDistance+=iSpeed;    if(word.Location.X<=-(word.Width))    {     iDistance=0;     if(word.Location.Y==0)      word.Location=new System.Drawing.Point(word.Location.X,height1/2);     else if(word.Location.Y==height1/2)      word.Location=new System.Drawing.Point(word.Location.X,height1-word.Height);     else      word.Location=new System.Drawing.Point(word.Location.X,0);    }    file://下面是计算图片框移动坐标    speed++;    if(speed<=2*height1)    {     x1=System.Math.Abs(width1-speed);     y1=System.Math.Abs(height1-speed);    }    else if(speed>2*height1 && speed<=2*width1)    {     x1=System.Math.Abs(width1-speed);     y1=System.Math.Abs(height1-(speed-speed/height1*height1));    }    else if(speed>2*width1 &&speed<=3*height1)    {     x1=System.Math.Abs(width1-(speed-speed/width1*width1));     y1=System.Math.Abs(height1-(speed-speed/height1*height1));    }    else if(speed>3*height1 && speed<4*height1)    {     x1=System.Math.Abs(width1-(speed-speed/width1*width1));     y1=System.Math.Abs(speed-speed/height1*height1);    }    else if(speed>=4*height1 && speed<5*height1)    {     x1=System.Math.Abs(speed-speed/width1*width1);     y1=System.Math.Abs(height1-(speed-speed/height1*height1));    }    else if(speed>=5*height1 && speed<4*width1)    {     x1=System.Math.Abs(speed-speed/width1*width1);     y1=System.Math.Abs(speed-speed/height1*height1);    }    else if(speed>=4*width1 && speed<6*height1)    {     x1=System.Math.Abs(width1-(speed-speed/width1*width1));     y1=System.Math.Abs(speed-speed/height1*height1);    }    else if(speed>=6*height1 && speed<5*width1)    {     x1=System.Math.Abs(width1-(speed-speed/width1*width1));     y1=System.Math.Abs(height1-(speed-speed/height1*height1));    }    else if(speed>=5*width1 && speed<7*height1)    {     x1=System.Math.Abs(speed-speed/width1*width1);     y1=System.Math.Abs(height1-(speed-speed/height1*height1));    }    else if(speed>=7*height1 && speed<6*width1)    {     x1=System.Math.Abs(speed-speed/width1*width1);     y1=System.Math.Abs(speed-speed/height1*height1);    }    if(speed==6*width1)    speed=0;    picture1.Location=new System.Drawing.Point(x1,y1);   }   private void StopScreenSaver() file://停止屏幕保护程序运行   {    System.Windows.Forms.Cursor.Show();    timerSaver.Enabled=false;    Application.Exit();   }   private void screen_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)    file://鼠标移动事件   {    if(ixStart==0 && iyStart==0)    {     ixStart=e.X;     iyStart=e.Y;     return;    }    else if(e.X!=ixStart||e.Y!=iyStart)    StopScreenSaver();   }   private void screen_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)   file://鼠标按下事件   {    StopScreenSaver(); file://停止运行屏幕保护程序   }   private void screen_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)    file://键盘按下事件   {    StopScreenSaver(); file://停止运行屏幕保护程序   } } }    最后运行该程序,把screen_saver.exe改为screen_saver.scr,拷入Windows系统目录中,这样就可以运行该屏幕保护程序。

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