自动加载图标代码,CSharp代码库,德仔网

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【CSharp】自动加载图标

作者:小火柴 / 发布于2012/12/6/ 626

public partial class Form2 : Form
 {
     public Form2()
     {
         InitializeComponent();
     }
 

     private void Form2_Load(object sender, EventArgs e)
     {
         foreach (string s in Enum.GetNames(typeof(View)))
         {
             contextMenuStrip1.Items.Add(s).Click += Clicks;
         }
     }

     void Clicks(object sender, EventArgs e)
     {
         listView1.View = (View)Enum.Parse(typeof(View), ((ToolStripMenuItem)sender).Text);
     }

     private void button1_Click(object sender, EventArgs e)
     {
         int nIndex = 0;
         listView1.Items.Clear();
         SHFILEINFO shinfo = new SHFILEINFO();
         listView1.SmallImageList = imageList1;
         listView1.LargeImageList = imageList2;
         if (folderBrowserDialog1 .ShowDialog() == DialogResult.OK)
         {
             string path =this.folderBrowserDialog1 .SelectedPath;
             foreach (string file in Directory.GetFiles(path))
             {
                 Win32.SHGetFileInfo(file, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), Win32.SHGFI_ICON | Win32.SHGFI_SMALLICON);
                 Icon myIcon = Icon.FromHandle(shinfo.hIcon);
                 imageList1.Images.Add(myIcon);
                 Win32.SHGetFileInfo(file, 0, ref shinfo, (uint)Marshal.SizeOf(shinfo), Win32.SHGFI_ICON | Win32.SHGFI_LARGEICON);
                 myIcon = Icon.FromHandle(shinfo.hIcon);
                 imageList2.Images.Add(myIcon);
                 listView1.Items.Add(Path.GetFileNameWithoutExtension (file), nIndex++);
             }
         }
     }     
 }

 [StructLayout(LayoutKind.Sequential)]
 public struct SHFILEINFO
 {
     public IntPtr hIcon;
     public IntPtr iIcon;
     public uint dwAttributes;
     [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
     public string szDisplayName;
     [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 80)]
     public string szTypeName;
 }

 class Win32
 {
     public const uint SHGFI_ICON = 0x100;
     public const uint SHGFI_LARGEICON = 0x0; // 'Large icon
     public const uint SHGFI_SMALLICON = 0x1; // 'Small icon
     [DllImport("shell32.dll")]
     public static extern IntPtr SHGetFileInfo(string pszPath, uint dwFileAttributes, ref SHFILEINFO psfi, uint cbSizeFileInfo, uint uFlags);
 }

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