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

namespace Example116_圖形文件的拖放操作
{
	/// <summary>
	/// Form1 的摘要說明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		/// <summary>
		/// 必需的設(shè)計器變量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Windows 窗體設(shè)計器支持所必需的
			//
			InitializeComponent();

			//
			// TODO: 在 InitializeComponent 調(diào)用后添加任何構(gòu)造函數(shù)代碼
			//
		}

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

		#region Windows Form Designer generated code
		/// <summary>
		/// 設(shè)計器支持所需的方法 - 不要使用代碼編輯器修改
		/// 此方法的內(nèi)容。
		/// </summary>
		private void InitializeComponent()
		{
			// 
			// Form1
			// 
			this.AllowDrop = true;
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(292, 273);
			this.Name = "Form1";
			this.Text = "Form1";
			this.DragEnter += new System.Windows.Forms.DragEventHandler(
				this.Form1_DragEnter);
		}
		#endregion

		/// <summary>
		/// 應(yīng)用程序的主入口點。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}
		private void Form1_DragEnter(object sender,
			System.Windows.Forms.DragEventArgs e)
		{
			e.Effect = DragDropEffects.Copy;
			String[] str_Drop=(String[])e.Data.GetData(DataFormats.FileDrop,true);;
			string  tempstr;
			Bitmap bkImage;
			tempstr = str_Drop[0];
			try
			{
				bkImage = new Bitmap(tempstr);
				this.Size = new System.Drawing.Size(bkImage.Width,
					bkImage.Height);
				this.BackgroundImage = bkImage;}
			catch {}
		}

	}
}