form1.cs

C#150例

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Runtime.InteropServices;
namespace Example088_获取系统中可用的驱动器列表
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.ListView listView1;
		/// <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 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.listView1 = new System.Windows.Forms.ListView();
			this.SuspendLayout();
			// 
			// listView1
			// 
			this.listView1.Location = new System.Drawing.Point(8, 8);
			this.listView1.Name = "listView1";
			this.listView1.Size = new System.Drawing.Size(208, 152);
			this.listView1.TabIndex = 0;
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(224, 165);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.listView1});
			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());
		}

		[StructLayout(LayoutKind.Sequential)]
		public struct SHFILEINFO 
		{
			public IntPtr hIcon; 
			public int iIcon;
			public int dwAttributes; 
			public string szDisplayName; 
			public string szTypeName; 
		}

		[DllImport("shell32")]
		private static extern int SHGetFileInfo(string pszPath,int dwFileAttributes,ref SHFILEINFO psfi,int cbFileInfo,int uFlags);
		const int SHGFI_ICON = 0x0100;
		const int SHGFI_LARGEICON = 0x0000; 

		static string[] drives;
		ImageList img=new ImageList();

		private void Form1_Load(object sender, System.EventArgs e)
		{
			this.listView1.LargeImageList=img;
			this.listView1.SmallImageList=img;
			this.listView1.StateImageList=img;

			drives=Environment.GetLogicalDrives();
			for(int i=0;i<drives.Length;i++)
			{
				string str_temp=drives[i];
				this.listView1.Items.Add(str_temp);
				this.listView1.Items[i].ImageIndex=i;
			}
			for(int i=0;i<drives.Length;i++)
			{
				SHFILEINFO FileInfo=new SHFILEINFO();
				SHGetFileInfo(drives[i],0,ref FileInfo,Marshal.SizeOf(FileInfo),SHGFI_ICON | SHGFI_LARGEICON);

				Icon myIcon;
				myIcon=Icon.FromHandle(FileInfo.hIcon);
				img.Images.Add(myIcon); 
			}
		}
	}
}