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| using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.IO;
using System.Runtime.InteropServices;
namespace Bilb0tSpace
{
/// <summary>
/// Description résumée de DirTreeView.
/// </summary>
public class DirTreeView : TreeView
{
public DirTreeView():base()
{
this.ImageList = new ImageList();
//Event
this.AfterExpand+=new TreeViewEventHandler(DirTreeView_AfterExpand);
}
private static string TempNode = "TEMP_NODE";
public void AddRootNodes()
{
//foreach(string drive in Directory.GetLogicalDrives())
{
DirectoryInfo di = new DirectoryInfo(/*drive*/"C:/");
if(di.Exists)
{
TreeNode tn = new TreeNode(/*drive*/"C:/");
ImageList.Images.Add(ExtractIcons.GetIcon(di.FullName,false,ImageList));
tn.ImageIndex = ImageList.Images.Count-1;
ImageList.Images.Add(ExtractIcons.GetIcon(di.FullName,true,ImageList));
tn.SelectedImageIndex = ImageList.Images.Count-1;
tn.Tag = di;
Nodes.Add(tn);
ExpandDir(tn);
}
}
}
public void ExpandDir(TreeNode tnParent)
{
DirectoryInfo di = (DirectoryInfo)tnParent.Tag;
if(di.Exists)
{
foreach(DirectoryInfo diChild in di.GetDirectories())
{
TreeNode tn = new TreeNode(diChild.Name);
tn.Tag = diChild;
ImageList.Images.Add(ExtractIcons.GetIcon(diChild.FullName,false,ImageList));
tn.ImageIndex = ImageList.Images.Count-1;
ImageList.Images.Add(ExtractIcons.GetIcon(diChild.FullName,true,ImageList));
tn.SelectedImageIndex = ImageList.Images.Count-1;
tnParent.Nodes.Add(tn);
if(diChild.GetDirectories().Length > 0)
tn.Nodes.Add(new TreeNode(TempNode));
}
}
}
private void DirTreeView_AfterExpand(object sender, TreeViewEventArgs e)
{
TreeNode tn = e.Node;
if(tn.Nodes.Count == 1)
{
if(tn.Nodes[0].Text == TempNode)
{
tn.Nodes.Clear();
ExpandDir(tn);
}
}
}
}
#region ExtractIcons Class
public class ExtractIcons
{
#region Structs & Enum
[StructLayout(LayoutKind.Sequential)]
private struct SHFILEINFO
{
public SHFILEINFO(bool b)
{
hIcon=IntPtr.Zero;iIcon=0;dwAttributes=0;szDisplayName="";szTypeName="";
}
public IntPtr hIcon;
public int iIcon;
public uint dwAttributes;
[MarshalAs(UnmanagedType.LPStr, SizeConst=260)]
public string szDisplayName;
[MarshalAs(UnmanagedType.LPStr, SizeConst=80)]
public string szTypeName;
};
private enum SHGFI
{
SHGFI_ICON = 0x000000100, // get icon
SHGFI_DISPLAYNAME = 0x000000200, // get display name
SHGFI_TYPENAME = 0x000000400, // get type name
SHGFI_ATTRIBUTES = 0x000000800, // get attributes
SHGFI_ICONLOCATION = 0x000001000, // get icon location
SHGFI_EXETYPE = 0x000002000, // return exe type
SHGFI_SYSICONINDEX = 0x000004000, // get system icon index
SHGFI_LINKOVERLAY = 0x000008000, // put a link overlay on icon
SHGFI_SELECTED = 0x000010000, // show icon in selected state
SHGFI_ATTR_SPECIFIED = 0x000020000, // get only specified attributes
SHGFI_LARGEICON = 0x000000000, // get large icon
SHGFI_SMALLICON = 0x000000001, // get small icon
SHGFI_OPENICON = 0x000000002, // get open icon
SHGFI_SHELLICONSIZE = 0x000000004, // get shell size icon
SHGFI_PIDL = 0x000000008, // pszPath is a pidl
SHGFI_USEFILEATTRIBUTES = 0x000000010 // use passed dwFileAttribute
}
#endregion
#region Get Folder Icons
[DllImport("Shell32.dll")]
private static extern IntPtr SHGetFileInfo(string pszPath, uint dwFileAttributes,
out SHFILEINFO psfi, uint cbfileInfo, SHGFI uFlags );
public static Icon GetIcon(string strPath, bool selected, ImageList imageList)
{
SHFILEINFO info = new SHFILEINFO(true);
int cbFileInfo = Marshal.SizeOf(info);
SHGFI flags;
if (!selected)
flags = SHGFI.SHGFI_ICON|SHGFI.SHGFI_SMALLICON;
else
flags = SHGFI.SHGFI_ICON|SHGFI.SHGFI_SMALLICON|SHGFI.SHGFI_OPENICON;
SHGetFileInfo(strPath, 256, out info,(uint)cbFileInfo, flags);
return Icon.FromHandle(info.hIcon);
}
#endregion
#region Get Desktop Icon
// Retreive the desktop icon from Shell32.dll - it always appears at index 34 in all shell32 versions.
// This is probably NOT the best way to retreive this icon, but it works - if you have a better way
// by all means let me know..
// [DllImport("Shell32.dll", CharSet=CharSet.Auto)]
// public static extern IntPtr ExtractIcon(int hInst, string lpszExeFileName, int nIconIndex);
//
// public static Icon GetDesktopIcon()
// {
// IntPtr i = ExtractIcon(0, Environment.SystemDirectory + "\\shell32.dll", 34);
// return Icon.FromHandle(i);
// }
// Updated this method in v1.11 so that the icon returned is a small icon, not a large icon as
// returned by the old method above
[DllImport("Shell32.dll", CharSet=CharSet.Auto)]
public static extern uint ExtractIconEx(
string lpszFile, int nIconIndex, IntPtr[] phiconLarge, IntPtr[] phiconSmall, uint nIcons );
public static Icon GetDesktopIcon()
{
IntPtr[] handlesIconLarge = new IntPtr[1];
IntPtr[] handlesIconSmall = new IntPtr[1];
uint i = ExtractIconEx(Environment.SystemDirectory + "\\shell32.dll", 34,
handlesIconLarge, handlesIconSmall, 1);
return Icon.FromHandle(handlesIconSmall[0]);
}
#endregion
}
#endregion
} |
[C#]Folder tree view et fichier/répertoire caché
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