form1.cs

这是学习java基础的好的源代码的学习资料

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

namespace clipboardB
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.PictureBox pictureBox1;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.ListBox listBox1;
		/// <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.button1 = new System.Windows.Forms.Button();
			this.pictureBox1 = new System.Windows.Forms.PictureBox();
			this.button2 = new System.Windows.Forms.Button();
			this.listBox1 = new System.Windows.Forms.ListBox();
			this.SuspendLayout();
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(96, 104);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(120, 23);
			this.button1.TabIndex = 0;
			this.button1.Text = "从剪贴板提取文本";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// pictureBox1
			// 
			this.pictureBox1.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
			this.pictureBox1.Location = new System.Drawing.Point(16, 136);
			this.pictureBox1.Name = "pictureBox1";
			this.pictureBox1.Size = new System.Drawing.Size(280, 184);
			this.pictureBox1.TabIndex = 2;
			this.pictureBox1.TabStop = false;
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(88, 328);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(128, 23);
			this.button2.TabIndex = 3;
			this.button2.Text = "从剪贴板提取图像";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// listBox1
			// 
			this.listBox1.ItemHeight = 12;
			this.listBox1.Location = new System.Drawing.Point(16, 8);
			this.listBox1.Name = "listBox1";
			this.listBox1.Size = new System.Drawing.Size(280, 88);
			this.listBox1.TabIndex = 4;
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(312, 358);
			this.Controls.Add(this.listBox1);
			this.Controls.Add(this.button2);
			this.Controls.Add(this.pictureBox1);
			this.Controls.Add(this.button1);
			this.Name = "Form1";
			this.Text = "剪贴板实现进程通信（步骤二）";
			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)
		{
			//判断剪切板中的数据类型，要使用到IdataObject接口，此接口的可以存放从剪切板中读取得数据。
			//通过IdataObject接口的方法GetDataPresent（）来判断是否为符合自己需要的数据类型。
			if(Clipboard.GetDataObject()!=null)
			{
				IDataObject iData = Clipboard.GetDataObject();			
				if(iData.GetDataPresent(DataFormats.Text)) 
				{
					
					this.listBox1.Items.Add((String)iData.GetData(DataFormats.Text));
				}
				else 
				{
					MessageBox.Show("剪贴板中不是文本信息！");
				}
			}
			else
			{
				MessageBox.Show("剪贴板为空！");
			}

		}

		private void button2_Click(object sender, System.EventArgs e)
		{
			if(Clipboard.GetDataObject()!=null)
			{
				Bitmap bmp;
				IDataObject data = Clipboard.GetDataObject();
				if (data.GetDataPresent(DataFormats.Bitmap))
				{
					bmp = (Bitmap)data.GetData(DataFormats.Bitmap,true);
					this.pictureBox1.Image = bmp;
				}
				else
				{
					MessageBox.Show("剪贴板中不是图片信息！");
				}
			}
			else
			{
				MessageBox.Show("剪贴板为空！");
			}

		}
	}
}