internal ShellItem(ShellBrowser browser, IntPtr pidl, IntPtr shellFolderPtr)
{
this.browser = browser;
this.shellFolderPtr = shellFolderPtr;
this.shellFolder = (IShellFolder)Marshal.GetTypedObjectForIUnknown(shellFolderPtr, typeof(IShellFolder));
subFiles = new ShellItemCollection(this);
subFolders = new ShellItemCollection(this);
pidlRel = new PIDL(pidl, false);
text = "Desktop";
path = "Desktop";
SetAttributesDesktop(this);
ShellAPI.SHFILEINFO info = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(pidlRel.Ptr, 0, ref info, ShellAPI.cbFileInfo,
ShellAPI.SHGFI.PIDL | ShellAPI.SHGFI.TYPENAME | ShellAPI.SHGFI.SYSICONINDEX);
type = info.szTypeName;
ShellImageList.SetIconIndex(this, info.iIcon, false);
ShellImageList.SetIconIndex(this, info.iIcon, true);
sortFlag = 1;
}
static ShellImageList()
{
ShellAPI.SHFILEINFO fileInfo = new ShellAPI.SHFILEINFO();
SmallImageList = ShellAPI.SHGetFileInfo(".txt", ShellAPI.FILE_ATTRIBUTE.NORMAL, ref fileInfo, ShellAPI.cbFileInfo, ShellAPI.SHGFI.USEFILEATTRIBUTES | ShellAPI.SHGFI.SYSICONINDEX | ShellAPI.SHGFI.SMALLICON);
LargeImageList = ShellAPI.SHGetFileInfo(".txt", ShellAPI.FILE_ATTRIBUTE.NORMAL, ref fileInfo, ShellAPI.cbFileInfo, ShellAPI.SHGFI.USEFILEATTRIBUTES | ShellAPI.SHGFI.SYSICONINDEX | ShellAPI.SHGFI.LARGEICON);
}
public static int GetFileImageIndex(string path, FileAttributes attr)
{
ShellAPI.SHFILEINFO shfiSmall = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(path, (ShellAPI.FILE_ATTRIBUTE)attr, ref shfiSmall, ShellAPI.cbFileInfo,
ShellAPI.SHGFI.USEFILEATTRIBUTES |
ShellAPI.SHGFI.SMALLICON |
ShellAPI.SHGFI.SYSICONINDEX
);
return(shfiSmall.iIcon);
}
private void InitVars()
{
IntPtr tempPidl;
ShellAPI.SHFILEINFO info;
//My Computer
info = new ShellAPI.SHFILEINFO();
tempPidl = IntPtr.Zero;
ShellAPI.SHGetSpecialFolderLocation(IntPtr.Zero, ShellAPI.CSIDL.DRIVES, out tempPidl);
ShellAPI.SHGetFileInfo(tempPidl, 0, ref info, ShellAPI.cbFileInfo,
ShellAPI.SHGFI.PIDL | ShellAPI.SHGFI.DISPLAYNAME | ShellAPI.SHGFI.TYPENAME);
sysfolderName = info.szTypeName;
mycompName = info.szDisplayName;
Marshal.FreeCoTaskMem(tempPidl);
//
//Dekstop
tempPidl = IntPtr.Zero;
ShellAPI.SHGetSpecialFolderLocation(IntPtr.Zero, ShellAPI.CSIDL.DESKTOP, out tempPidl);
IntPtr desktopFolderPtr;
ShellAPI.SHGetDesktopFolder(out desktopFolderPtr);
desktopItem = new ShellItem(this, tempPidl, desktopFolderPtr);
//
//My Documents
uint pchEaten = 0;
ShellAPI.SFGAO pdwAttributes = 0;
desktopItem.ShellFolder.ParseDisplayName(
IntPtr.Zero,
IntPtr.Zero,
"::{450d8fba-ad25-11d0-98a8-0800361b1103}",
ref pchEaten,
out tempPidl,
ref pdwAttributes);
info = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(tempPidl, 0, ref info, ShellAPI.cbFileInfo,
ShellAPI.SHGFI.PIDL | ShellAPI.SHGFI.DISPLAYNAME);
mydocsName = info.szDisplayName;
Marshal.FreeCoTaskMem(tempPidl);
StringBuilder path = new StringBuilder(ShellAPI.MAX_PATH);
ShellAPI.SHGetFolderPath(
IntPtr.Zero, ShellAPI.CSIDL.PERSONAL,
IntPtr.Zero, ShellAPI.SHGFP.TYPE_CURRENT, path);
mydocsPath = path.ToString();
//
}
static ShellImageList()
{
imageTable = new Hashtable();
ShellAPI.SHGFI flag = ShellAPI.SHGFI.USEFILEATTRIBUTES | ShellAPI.SHGFI.SYSICONINDEX | ShellAPI.SHGFI.SMALLICON;
ShellAPI.SHFILEINFO shfiSmall = new ShellAPI.SHFILEINFO();
smallImageListHandle = ShellAPI.SHGetFileInfo(".txt", ShellAPI.FILE_ATTRIBUTE.NORMAL, ref shfiSmall, ShellAPI.cbFileInfo, flag);
flag = ShellAPI.SHGFI.USEFILEATTRIBUTES | ShellAPI.SHGFI.SYSICONINDEX | ShellAPI.SHGFI.LARGEICON;
ShellAPI.SHFILEINFO shfiLarge = new ShellAPI.SHFILEINFO();
largeImageListHandle = ShellAPI.SHGetFileInfo(".txt", ShellAPI.FILE_ATTRIBUTE.NORMAL, ref shfiLarge, ShellAPI.cbFileInfo, flag);
}
static ShellImageList()
{
imageTable = new Hashtable();
ShellAPI.SHGFI flag = ShellAPI.SHGFI.USEFILEATTRIBUTES | ShellAPI.SHGFI.SYSICONINDEX | ShellAPI.SHGFI.SMALLICON;
ShellAPI.SHFILEINFO shfiSmall = new ShellAPI.SHFILEINFO();
smallImageListHandle = ShellAPI.SHGetFileInfo(".txt", ShellAPI.FILE_ATTRIBUTE.NORMAL, ref shfiSmall, ShellAPI.cbFileInfo, flag);
flag = ShellAPI.SHGFI.USEFILEATTRIBUTES | ShellAPI.SHGFI.SYSICONINDEX | ShellAPI.SHGFI.LARGEICON;
ShellAPI.SHFILEINFO shfiLarge = new ShellAPI.SHFILEINFO();
largeImageListHandle = ShellAPI.SHGetFileInfo(".txt", ShellAPI.FILE_ATTRIBUTE.NORMAL, ref shfiLarge, ShellAPI.cbFileInfo, flag);
}
private void InitVars()
{
IntPtr tempPidl;
ShellAPI.SHFILEINFO info;
//My Computer
info = new ShellAPI.SHFILEINFO();
tempPidl = IntPtr.Zero;
ShellAPI.SHGetSpecialFolderLocation(IntPtr.Zero, ShellAPI.CSIDL.DRIVES, out tempPidl);
ShellAPI.SHGetFileInfo(tempPidl, 0, ref info, ShellAPI.cbFileInfo,
ShellAPI.SHGFI.PIDL | ShellAPI.SHGFI.DISPLAYNAME | ShellAPI.SHGFI.TYPENAME);
sysfolderName = info.szTypeName;
mycompName = info.szDisplayName;
Marshal.FreeCoTaskMem(tempPidl);
//
//Dekstop
tempPidl = IntPtr.Zero;
ShellAPI.SHGetSpecialFolderLocation(IntPtr.Zero, ShellAPI.CSIDL.DESKTOP, out tempPidl);
IntPtr desktopFolderPtr;
ShellAPI.SHGetDesktopFolder(out desktopFolderPtr);
desktopItem = new ShellItem(this, tempPidl, desktopFolderPtr);
//
//My Documents
uint pchEaten = 0;
ShellAPI.SFGAO pdwAttributes = 0;
desktopItem.ShellFolder.ParseDisplayName(
IntPtr.Zero,
IntPtr.Zero,
SpecialFolderPath.MyDocuments,
ref pchEaten,
out tempPidl,
ref pdwAttributes);
info = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(tempPidl, 0, ref info, ShellAPI.cbFileInfo,
ShellAPI.SHGFI.PIDL | ShellAPI.SHGFI.DISPLAYNAME);
mydocsName = info.szDisplayName;
Marshal.FreeCoTaskMem(tempPidl);
StringBuilder path = new StringBuilder(ShellAPI.MAX_PATH);
ShellAPI.SHGetFolderPath(
IntPtr.Zero, ShellAPI.CSIDL.PERSONAL,
IntPtr.Zero, ShellAPI.SHGFP.TYPE_CURRENT, path);
mydocsPath = path.ToString();
//
}
public static int GetSpecialFolderImageIndex(ShellAPI.CSIDL pidl)
{
IntPtr tempPidl = IntPtr.Zero;
ShellAPI.SHGetSpecialFolderLocation(IntPtr.Zero, pidl, out tempPidl);
ShellAPI.SHFILEINFO shfiSmall = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(tempPidl, 0, ref shfiSmall, ShellAPI.cbFileInfo,
ShellAPI.SHGFI.PIDL |
ShellAPI.SHGFI.ICON |
ShellAPI.SHGFI.SMALLICON |
ShellAPI.SHGFI.SYSICONINDEX
);
return(shfiSmall.iIcon);
}
internal static void SetIconIndex(ShellItem item, int index, bool SelectedIcon)
{
bool HasOverlay = false; //true if it's an overlay
int rVal = 0; //The returned Index
ShellAPI.SHGFI dwflag = ShellAPI.SHGFI.SYSICONINDEX | ShellAPI.SHGFI.PIDL | ShellAPI.SHGFI.ICON;
ShellAPI.FILE_ATTRIBUTE dwAttr = 0;
//build Key into HashTable for this Item
int Key = index * 256;
if (item.IsLink)
{
Key = Key | 1;
dwflag = dwflag | ShellAPI.SHGFI.LINKOVERLAY;
HasOverlay = true;
}
if (item.IsShared)
{
Key = Key | 2;
dwflag = dwflag | ShellAPI.SHGFI.ADDOVERLAYS;
HasOverlay = true;
}
if (SelectedIcon)
{
Key = Key | 4;
dwflag = dwflag | ShellAPI.SHGFI.OPENICON;
HasOverlay = true; //not really an overlay, but handled the same
}
if (imageTable.ContainsKey(Key))
{
rVal = (int)imageTable[Key];
}
else if (!HasOverlay && !item.IsHidden) //for non-overlay icons, we already have
{
rVal = (int)System.Math.Floor((double)Key / 256); // the right index -- put in table
imageTable[Key] = rVal;
}
else //don't have iconindex for an overlay, get it.
{
if (item.IsFileSystem & !item.IsDisk & !item.IsFolder)
{
dwflag = dwflag | ShellAPI.SHGFI.USEFILEATTRIBUTES;
dwAttr = dwAttr | ShellAPI.FILE_ATTRIBUTE.NORMAL;
}
PIDL pidlFull = item.PIDLFull;
ShellAPI.SHFILEINFO shfiSmall = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(pidlFull.Ptr, dwAttr, ref shfiSmall, ShellAPI.cbFileInfo, dwflag | ShellAPI.SHGFI.SMALLICON);
ShellAPI.SHFILEINFO shfiLarge = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(pidlFull.Ptr, dwAttr, ref shfiLarge, ShellAPI.cbFileInfo, dwflag | ShellAPI.SHGFI.LARGEICON);
Marshal.FreeCoTaskMem(pidlFull.Ptr);
lock (imageTable)
{
rVal = ShellAPI.ImageList_ReplaceIcon(smallImageListHandle, -1, shfiSmall.hIcon);
ShellAPI.ImageList_ReplaceIcon(largeImageListHandle, -1, shfiLarge.hIcon);
}
ShellAPI.DestroyIcon(shfiSmall.hIcon);
ShellAPI.DestroyIcon(shfiLarge.hIcon);
imageTable[Key] = rVal;
}
if (SelectedIcon)
item.SelectedImageIndex = rVal;
else
item.ImageIndex = rVal;
}
public static extern IntPtr SHGetFileInfo(IntPtr ppidl, ShellAPI.FILE_ATTRIBUTE dwFileAttributes, ref ShellAPI.SHFILEINFO sfi, int cbFileInfo, ShellAPI.SHGFI uFlags);
/// <summary>
/// This method uses SHGetFileInfo to check whether a path to a directory exists.
/// </summary>
/// <param name="path">The path to check</param>
/// <returns>true if it exists, false otherwise</returns>
private bool PathExists(string path)
{
string realPath = ConvertPath(path);
if (string.IsNullOrEmpty(realPath))
return false;
else if (string.Compare(path, "desktop", true) == 0)
return true;
string[] pathParts = realPath.Split('\\');
for (int i = 0; i < pathParts.Length; i++)
{
bool found = false;
if (ShellBrowser.DesktopItem.SubFolders.Contains(pathParts[i]))
{
pathParts[i] = ShellItem.GetRealPath(
ShellBrowser.DesktopItem.SubFolders[pathParts[i]]);
found = true;
}
else
{
ShellItem myComp =
ShellBrowser.DesktopItem.SubFolders[ShellBrowser.MyComputerName];
if (myComp.SubFolders.Contains(pathParts[i]))
{
pathParts[i] = ShellItem.GetRealPath(
myComp.SubFolders[pathParts[i]]);
found = true;
}
}
if (!found)
break;
}
realPath = string.Join("\\", pathParts);
if (realPath.EndsWith(":"))
realPath += "\\";
ShellAPI.SHFILEINFO info = new ShellAPI.SHFILEINFO();
IntPtr ptr = ShellAPI.SHGetFileInfo(realPath, 0, ref info, ShellAPI.cbFileInfo, ShellAPI.SHGFI.DISPLAYNAME);
bool exists = (ptr != IntPtr.Zero);
Marshal.FreeCoTaskMem(ptr);
return exists;
}
private static void SetInfo(ShellItem item)
{
PIDL pidlFull = item.PIDLFull;
ShellAPI.SHFILEINFO info = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(pidlFull.Ptr, 0, ref info, ShellAPI.cbFileInfo,
ShellAPI.SHGFI.PIDL | ShellAPI.SHGFI.TYPENAME | ShellAPI.SHGFI.SYSICONINDEX);
pidlFull.Free();
ShellImageList.SetIconIndex(item, info.iIcon, false);
ShellImageList.SetIconIndex(item, info.iIcon, true);
item.type = info.szTypeName;
}
internal static void SetIconIndex(ShellItem item, int index, bool selectedIcon)
{
bool hasOverlay = false;
int result; // The returned Index
ShellAPI.SHGFI flag = ShellAPI.SHGFI.SYSICONINDEX | ShellAPI.SHGFI.PIDL | ShellAPI.SHGFI.ICON;
ShellAPI.FILE_ATTRIBUTE attribute = 0;
// build Key into HashTable for this Item
int Key = index * 256;
if (item.IsLink)
{
Key = Key | 1;
flag = flag | ShellAPI.SHGFI.LINKOVERLAY;
hasOverlay = true;
}
if (item.IsShared)
{
Key = Key | 2;
flag = flag | ShellAPI.SHGFI.ADDOVERLAYS;
hasOverlay = true;
}
if (selectedIcon)
{
Key = Key | 4;
flag = flag | ShellAPI.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 | ShellAPI.SHGFI.USEFILEATTRIBUTES;
attribute = attribute | ShellAPI.FILE_ATTRIBUTE.NORMAL;
}
PIDL pidl = item.PIDLFull;
ShellAPI.SHFILEINFO smallFileInfo = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(pidl.Ptr, attribute, ref smallFileInfo, ShellAPI.cbFileInfo, flag | ShellAPI.SHGFI.SMALLICON);
ShellAPI.SHFILEINFO largeFileInfo = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(pidl.Ptr, attribute, ref largeFileInfo, ShellAPI.cbFileInfo, flag | ShellAPI.SHGFI.LARGEICON);
Marshal.FreeCoTaskMem(pidl.Ptr);
lock (imageTable)
{
result = ShellAPI.ImageList_ReplaceIcon(SmallImageList, -1, smallFileInfo.hIcon);
ShellAPI.ImageList_ReplaceIcon(LargeImageList, -1, largeFileInfo.hIcon);
}
ShellAPI.DestroyIcon(smallFileInfo.hIcon);
ShellAPI.DestroyIcon(largeFileInfo.hIcon);
imageTable[Key] = result;
}
if (selectedIcon)
{
item.SelectedImageIndex = result;
}
else
{
item.ImageIndex = result;
}
}
internal static void SetIconIndex(ShellItem item, int index, bool SelectedIcon)
{
bool HasOverlay = false; //true if it's an overlay
int rVal = 0; //The returned Index
ShellAPI.SHGFI dwflag = ShellAPI.SHGFI.SYSICONINDEX | ShellAPI.SHGFI.PIDL | ShellAPI.SHGFI.ICON;
ShellAPI.FILE_ATTRIBUTE dwAttr = 0;
//build Key into HashTable for this Item
int Key = index * 256;
if (item.IsLink)
{
Key = Key | 1;
dwflag = dwflag | ShellAPI.SHGFI.LINKOVERLAY;
HasOverlay = true;
}
if (item.IsShared)
{
Key = Key | 2;
dwflag = dwflag | ShellAPI.SHGFI.ADDOVERLAYS;
HasOverlay = true;
}
if (SelectedIcon)
{
Key = Key | 4;
dwflag = dwflag | ShellAPI.SHGFI.OPENICON;
HasOverlay = true; //not really an overlay, but handled the same
}
if (imageTable.ContainsKey(Key))
{
rVal = (int)imageTable[Key];
}
else if (!HasOverlay && !item.IsHidden) //for non-overlay icons, we already have
{
rVal = (int)System.Math.Floor((double)Key / 256); // the right index -- put in table
imageTable[Key] = rVal;
}
else //don't have iconindex for an overlay, get it.
{
if (item.IsFileSystem & !item.IsDisk & !item.IsFolder)
{
dwflag = dwflag | ShellAPI.SHGFI.USEFILEATTRIBUTES;
dwAttr = dwAttr | ShellAPI.FILE_ATTRIBUTE.NORMAL;
}
PIDL pidlFull = item.PIDLFull;
ShellAPI.SHFILEINFO shfiSmall = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(pidlFull.Ptr, dwAttr, ref shfiSmall, ShellAPI.cbFileInfo, dwflag | ShellAPI.SHGFI.SMALLICON);
ShellAPI.SHFILEINFO shfiLarge = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(pidlFull.Ptr, dwAttr, ref shfiLarge, ShellAPI.cbFileInfo, dwflag | ShellAPI.SHGFI.LARGEICON);
Marshal.FreeCoTaskMem(pidlFull.Ptr);
lock (imageTable)
{
rVal = ShellAPI.ImageList_ReplaceIcon(smallImageListHandle, -1, shfiSmall.hIcon);
ShellAPI.ImageList_ReplaceIcon(largeImageListHandle, -1, shfiLarge.hIcon);
}
ShellAPI.DestroyIcon(shfiSmall.hIcon);
ShellAPI.DestroyIcon(shfiLarge.hIcon);
imageTable[Key] = rVal;
}
if (SelectedIcon)
{
item.SelectedImageIndex = rVal;
}
else
{
item.ImageIndex = rVal;
}
}
public static Bitmap GetFileIcon(string name)
{
ShellDll.ShellAPI.SHFILEINFO shinfo = new ShellAPI.SHFILEINFO();
ShellAPI.SHGetFileInfo(name, ShellAPI.FILE_ATTRIBUTE.NORMAL,
ref shinfo, (int)Marshal.SizeOf(shinfo),
ShellAPI.SHGFI.ICON | ShellAPI.SHGFI.USEFILEATTRIBUTES);
return Icon.FromHandle(shinfo.hIcon).ToBitmap();
}
