public ShellNode(ShellBrowser browser, IntPtr pidl, IntPtr shellFolderPtr)
{
this.Browser = browser;
this.shellFolderPtr = shellFolderPtr;
this.shellFolder = (IShellFolder)Marshal.GetTypedObjectForIUnknown(shellFolderPtr, typeof(IShellFolder));
this.SubFiles = new ShellItemCollection(this);
this.SubFolders = new ShellItemCollection(this);
PIDLRel = new Pidl(pidl, false);
Text = "Desktop";
Path = "Desktop";
SetAttributesDesktop(this);
ShFileInfo info = new ShFileInfo();
Shell32.SHGetFileInfo(PIDLRel.Ptr, 0, ref info, Marshal.SizeOf(info), SHGFI.Pidl | SHGFI.TypeName | SHGFI.SysIconIndex);
Type = info.TypeName;
ShellImageList.SetIconIndex(this, info.IconIndex, false);
ShellImageList.SetIconIndex(this, info.IconIndex, true);
SortFlag = 1;
}
static ShellImageList()
{
ShFileInfo fileInfo = new ShFileInfo();
SmallImageList = Shell32.SHGetFileInfo(".txt", FileAttribute.Normal, ref fileInfo, Marshal.SizeOf(fileInfo), SHGFI.UseFileAttributes | SHGFI.SysIconIndex | SHGFI.SmallIcon);
LargeImageList = Shell32.SHGetFileInfo(".txt", FileAttribute.Normal, ref fileInfo, Marshal.SizeOf(fileInfo), SHGFI.UseFileAttributes | SHGFI.SysIconIndex | SHGFI.LargeIcon);
}
public int GetImageIndex()
{
ShFileInfo info = new ShFileInfo();
Shell32.SHGetFileInfo(pidl, 0, ref info, Marshal.SizeOf(info), SHGFI.Pidl | SHGFI.SysIconIndex | SHGFI.OverlayIndex | SHGFI.LargeIcon | SHGFI.AddOverlays | SHGFI.LinkOverlay);
Shell32.DestroyIcon(info.IconHandle);
return info.IconIndex;
}
public static int GetSmallAssociatedIconIndex(string path)
{
ShFileInfo fileInfo = new ShFileInfo();
Shell32.SHGetFileInfo(path, 0, ref fileInfo, Marshal.SizeOf(fileInfo), SHGFI.SmallIcon | SHGFI.ShellIconSize | SHGFI.SysIconIndex | SHGFI.LinkOverlay);
Shell32.DestroyIcon(fileInfo.IconHandle);
return fileInfo.IconIndex;
}
public static Icon GetLargeAssociatedIcon(string path)
{
ShFileInfo fileInfo = new ShFileInfo();
Shell32.SHGetFileInfo(path, 0, ref fileInfo, Marshal.SizeOf(fileInfo), SHGFI.LargeIcon | SHGFI.Icon | SHGFI.ShellIconSize);
try
{
if (fileInfo.IconHandle != IntPtr.Zero)
{
return Icon.FromHandle(fileInfo.IconHandle);
}
}
finally
{
Shell32.DestroyIcon(fileInfo.IconHandle);
}
return null;
}
private static void SetInfo(ShellNode item)
{
Pidl pidlFull = item.PIDLFull;
ShFileInfo info = new ShFileInfo();
Shell32.SHGetFileInfo(pidlFull.Ptr, 0, ref info, Marshal.SizeOf(info), SHGFI.Pidl | SHGFI.TypeName | SHGFI.SysIconIndex);
pidlFull.Free();
ShellImageList.SetIconIndex(item, info.IconIndex, false);
ShellImageList.SetIconIndex(item, info.IconIndex, true);
item.Type = info.TypeName;
}
public static extern IntPtr SHGetFileInfo(string path, FileAttributes fileAttributes, ref ShFileInfo psfi, int fileInfo, SHGFI flags);
public static extern IntPtr SHGetFileInfo(IntPtr ppidl, FileAttribute dwFileAttributes, ref ShFileInfo sfi, int cbFileInfo, SHGFI uFlags);
public static extern IntPtr SHGetFileInfo(string pszPath, FileAttribute dwFileAttributes, ref ShFileInfo sfi, int cbFileInfo, SHGFI uFlags);
private void Initialize()
{
IntPtr tempPidl;
ShFileInfo info;
//My Computer
info = new ShFileInfo();
tempPidl = IntPtr.Zero;
Shell32.SHGetSpecialFolderLocation(IntPtr.Zero, CSIDL.Drives, out tempPidl);
Shell32.SHGetFileInfo(tempPidl, 0, ref info, Marshal.SizeOf(info), SHGFI.Pidl | SHGFI.DisplayName | SHGFI.TypeName);
SystemFolderName = info.TypeName;
MyComputerName = info.DisplayName;
Marshal.FreeCoTaskMem(tempPidl);
//
//Dekstop
tempPidl = IntPtr.Zero;
Shell32.SHGetSpecialFolderLocation(IntPtr.Zero, CSIDL.Desktop, out tempPidl);
IntPtr desktopFolderPtr;
Shell32.SHGetDesktopFolder(out desktopFolderPtr);
DesktopItem = new ShellNode(this, tempPidl, desktopFolderPtr);
//
//My Documents
uint pchEaten = 0;
SFGAO pdwAttributes = 0;
DesktopItem.ShellFolder.ParseDisplayName(IntPtr.Zero, IntPtr.Zero, SpecialFolderPath.MyDocuments, ref pchEaten, out tempPidl, ref pdwAttributes);
info = new ShFileInfo();
Shell32.SHGetFileInfo(tempPidl, 0, ref info, Marshal.SizeOf(info), SHGFI.Pidl | SHGFI.DisplayName);
MyDocumentsName = info.DisplayName;
Marshal.FreeCoTaskMem(tempPidl);
StringBuilder path = new StringBuilder(ShellApi.MaxPath);
Shell32.SHGetFolderPath(IntPtr.Zero, CSIDL.Personal, IntPtr.Zero, SHGFP.TypeCurrent, path);
MyDocumentsPath = path.ToString();
//
}
public static int GetLargeAssociatedIconIndex(string path, FileAttributes attributes)
{
ShFileInfo fileInfo = new ShFileInfo();
Shell32.SHGetFileInfo(path, attributes, ref fileInfo, Marshal.SizeOf(fileInfo), SHGFI.LargeIcon | SHGFI.SysIconIndex | SHGFI.ShellIconSize | SHGFI.AddOverlays);
Shell32.DestroyIcon(fileInfo.IconHandle);
return fileInfo.IconIndex;
}
public static void SetIconIndex(ShellNode item, int index, bool selectedIcon)
{
bool hasOverlay = false;
int result; // The returned Index
SHGFI flag = SHGFI.SysIconIndex | SHGFI.Pidl | SHGFI.Icon;
FileAttribute attribute = 0;
// build Key into HashTable for this Item
int Key = index * 256;
if (item.IsLink)
{
Key = Key | 1;
flag = flag | SHGFI.LinkOverlay;
hasOverlay = true;
}
if (item.IsShared)
{
Key = Key | 2;
flag = flag | SHGFI.AddOverlays;
hasOverlay = true;
}
if (selectedIcon)
{
Key = Key | 4;
flag = flag | SHGFI.OpenIcon;
hasOverlay = true; // not really an overlay, but handled the same
}
if (imageTable.ContainsKey(Key))
{
result = (int)imageTable[Key];
}
else if (!hasOverlay && !item.IsHidden) // for non-overlay icons, we already have
{
result = (int)System.Math.Floor((double)Key / 256); // the right index -- put in table
imageTable[Key] = result;
}
else // don't have iconindex for an overlay, get it.
{
if (item.IsFileSystem & !item.IsDisk & !item.IsFolder)
{
flag = flag | SHGFI.UseFileAttributes;
attribute = attribute | FileAttribute.Normal;
}
Pidl pidl = item.PIDLFull;
ShFileInfo smallFileInfo = new ShFileInfo();
Shell32.SHGetFileInfo(pidl.Ptr, attribute, ref smallFileInfo, Marshal.SizeOf(smallFileInfo), flag | SHGFI.SmallIcon);
ShFileInfo largeFileInfo = new ShFileInfo();
Shell32.SHGetFileInfo(pidl.Ptr, attribute, ref largeFileInfo, Marshal.SizeOf(largeFileInfo), flag | SHGFI.LargeIcon);
Marshal.FreeCoTaskMem(pidl.Ptr);
lock (imageTable)
{
result = ComCtl32.ImageList_ReplaceIcon(SmallImageList, -1, smallFileInfo.IconHandle);
ComCtl32.ImageList_ReplaceIcon(LargeImageList, -1, largeFileInfo.IconHandle);
}
User32.DestroyIcon(smallFileInfo.IconHandle);
User32.DestroyIcon(largeFileInfo.IconHandle);
imageTable[Key] = result;
}
if (selectedIcon)
{
item.SelectedImageIndex = result;
}
else
{
item.ImageIndex = result;
}
}
