C#多屏幕显示器编程

在窗口的中间有一个System.Windows.Forms.PictureBox控件（该控件区域的面积为所在窗口的1/4），当该控件的大部分区域落在其中一台显示器时，在另一台显示器将不显示该控件，（该PictureBox控件将移动到主显示器所在的窗口区域）。  

实现方法:

using System; 

using System.Drawing; 

using System.Collections; 

using System.ComponentModel; 

using System.Windows.Forms; 

using System.Data; 

 

namespace WindowsApplication12 

{ 

/// <summary> 

/// Summary description for Form1. 

/// </summary> 

public class Form1 : System.Windows.Forms.Form 

{ 

private int tmpx = 0; 

private int tmpy = 0; 

private System.Windows.Forms.PictureBox pictureBox1; 

/// <summary> 

/// Required designer variable. 

/// </summary> 

private System.ComponentModel.Container components = null; 

 

System.Drawing.Rectangle[] ScreensRect; 

 

public Form1() 

{ 

// 

// Required for Windows Form Designer support 

// 

InitializeComponent(); 

 

// 

// TODO: Add any constructor code after InitializeComponent call 

// 

} 

 

/// <summary> 

/// Clean up any resources being used. 

/// </summary> 

protected override void Dispose( bool disposing ) 

{ 

if( disposing ) 

{ 

if (components != null) 

{ 

components.Dispose(); 

} 

} 

base.Dispose( disposing ); 

} 

 

#region Windows Form Designer generated code 

/// <summary> 

/// Required method for Designer support - do not modify 

/// the contents of this method with the code editor. 

/// </summary> 

private void InitializeComponent() 

{ 

this.pictureBox1 = new System.Windows.Forms.PictureBox(); 

this.SuspendLayout(); 

// 

// pictureBox1 

// 

this.pictureBox1.BackColor = System.Drawing.SystemColors.HotTrack; 

this.pictureBox1.Location = new System.Drawing.Point(120, 88); 

this.pictureBox1.Name = "pictureBox1"; 

this.pictureBox1.Size = new System.Drawing.Size(248, 176); 

this.pictureBox1.TabIndex = 0; 

this.pictureBox1.TabStop = false; 

// 

// Form1 

// 

this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); 

this.ClientSize = new System.Drawing.Size(504, 357); 

this.Controls.Add(this.pictureBox1); 

this.Name = "Form1"; 

this.Text = "Form1"; 

this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.Form1_MouseDown); 

this.Load += new System.EventHandler(this.Form1_Load); 

this.MouseUp += new System.Windows.Forms.MouseEventHandler(this.Form1_MouseUp); 

this.ResumeLayout(false); 

 

} 

#endregion 

 

/// <summary> 

/// The main entry point for the application. 

/// </summary> 

[STAThread] 

static void Main() 

{ 

Application.Run(new Form1()); 

} 

 

private void Form1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e) 

{ 

this.tmpx = e.X; 

this.tmpy = e.Y; 

this.MouseMove += new System.Windows.Forms.MouseEventHandler(this.form1_MouseMove); 

 

} 

 

private void Form1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e) 

{ 

this.MouseMove -= new System.Windows.Forms.MouseEventHandler(this.form1_MouseMove); 

 

System.Drawing.Rectangle pictureBox1Rect=Screen.GetWorkingArea(pictureBox1); 

 

for(int i=0;i<ScreensRect.Length;i++) 

{ 

if(ScreensRect[i].X==pictureBox1Rect.X && ScreensRect[i].Y==pictureBox1Rect.Y) 

this.Location=new Point(ScreensRect[i].X,pictureBox1Rect.Y); 

} 

//MessageBox.Show(" WorkingArea:" + re.ToString()); 

} 

private void form1_MouseMove(object sender, MouseEventArgs e) 

{ 

this.Location = new System.Drawing.Point(this.Location.X + e.X - this.tmpx, this.Location.Y + e.Y - this.tmpy); 

} 

 

private void Form1_Load(object sender, System.EventArgs e) 

{ 

Screen[] s=Screen.AllScreens; 

ScreensRect=new Rectangle[s.Length]; 

for(int i=0;i<s.Length;i++) 

{ 

ScreensRect[i]= s[i].WorkingArea; 

} 

} 

} 

}