private IShellItem GetItem(Uri uri, ResourceFlags flags = 0)
{
var rel = baseUri.MakeRelativeUri(uri);
if (rel.IsAbsoluteUri)
{
throw new ArgumentException("URI is not within this subsystem.", "uri");
}
if (String.IsNullOrEmpty(rel.OriginalString))
{
return(GetDesktop());
}
var segments = rel.OriginalString.Split('/').Where(s => s != "." && s != "").Select(s => HttpUtility.UrlDecode(s)).ToList();
if (segments.Count == 0)
{
return(GetDesktop());
}
IShellItem item = null;
foreach (var name in segments)
{
if (item == null)
{
try{
item = Shell32.SHCreateItemFromParsingName <IShellItem>("shell:" + name, null);
continue;
}catch (IOException)
{
try{
item = Shell32.SHCreateItemFromParsingName <IShellItem>(name, null);
continue;
}catch (IOException)
{
item = GetDesktop();
}
}
}
if ((flags & ResourceFlags.FollowLinks) != 0)
{
var target = GetTargetItem(item) as IShellItem;
if (target != null)
{
item = target;
}
}
var psf = item.BindToHandler <IShellFolder>(null, Shell32.BHID_SFObject);
uint tmp;
IntPtr pidl;
psf.ParseDisplayName(OwnerHwnd, null, name, out tmp, out pidl, 0);
try{
item = Shell32.SHCreateItemWithParent <IShellItem>(IntPtr.Zero, psf, pidl);
}finally{
Marshal.FreeCoTaskMem(pidl);
}
}
return(item);
}
internal ShellFolder(IShellItem shellItem, IShellFolder shellFolder, ShellItemKnownInfo knownInfo)
: base(GetShellItemFromFolder(shellItem, shellFolder), knownInfo)
{
if (shellFolder == null)
{
shellFolder = (IShellFolder)shellItem.BindToHandler(null, ShellConsts.BHID_SFObject, typeof(IShellFolder).GUID);
}
NativeFolder = shellFolder;
}
internal ShellFolder(IShellItem shellItem, IShellFolder shellFolder, ShellItemKnownInfo knownInfo)
: base(GetShellItemFromFolder(shellItem, shellFolder), knownInfo)
{
if (shellFolder == null)
{
shellFolder = (IShellFolder)shellItem.BindToHandler(null, ShellConsts.BHID_SFObject, typeof(IShellFolder).GUID);
}
NativeFolder = shellFolder;
}
private static IEnumShellItems GetEnumShellItems(IShellItem shellItem)
{
var guidEnumItems = new Guid("94f60519-2850-4924-aa5a-d15e84868039");
var hr = shellItem.BindToHandler(IntPtr.Zero, guidEnumItems, typeof(IEnumShellItems).GUID,
out var pEnumItems);
ThrowExceptionForHR(hr);
return(Marshal.GetObjectForIUnknown(pEnumItems) as IEnumShellItems);
}
//private static Guid BHID_SFObject = new Guid("3981e224-f559-11d3-8e3a-00c04f6837d5");
public static T GetIShellFolderCom <T>(IShellItem ptr)
{
IntPtr result = ptr.BindToHandler(IntPtr.Zero,
BHID.SFObject,
typeof(T).GUID);
var ret = (T)Marshal.GetTypedObjectForIUnknown(result,
typeof(T));
return(ret);
}
// Synopsis: Creates an IShellItemArray containing the sample files to be used in the CopyMultipleFiles sample
//
// Arguments: psiSrc - Source folder item
//
// Returns: S_OK if successful
private static IShellItemArray CreateShellItemArrayOfSampleFiles(IShellItem psiSrc)
{
var psfSampleSrc = psiSrc.BindToHandler <IShellFolder>(null, BHID.BHID_SFObject.Guid());
var rgpidlChildren = new PIDL[c_cMaxFilesToCreate];
try
{
for (var i = 0; i < rgpidlChildren.Length; i++)
{
var szSampleFileName = string.Format("{0}{1}.{2}", c_szSampleFileName, i, c_szSampleFileExt);
SFGAO attr = 0;
psfSampleSrc.ParseDisplayName(default, null, szSampleFileName, out _, out rgpidlChildren[i], ref attr);
public static IEnumerable <IShellItem> Enumerate(this IShellItem si)
{
object pesiTemp;
si.BindToHandler(IntPtr.Zero, BHID_EnumItems, typeof(IEnumShellItems).GUID, out pesiTemp);
var pesi = (IEnumShellItems)pesiTemp;
while (true)
{
IShellItem item = null;
int fetched;
pesi.Next(1, out item, out fetched);
if (fetched == 0)
{
break;
}
yield return(item);
}
}
/// <summary>
/// Refresh the contents of the directory.
/// </summary>
public void Refresh(StandardIcons?iconSize = default)
{
if (iconSize is null)
{
iconSize = _IconSize;
}
_Children.Clear();
_Folders.Clear();
FileObject fobj;
DirectoryObject dobj;
IShellItem shitem = null;
IShellFolder shfld;
IEnumIDList enumer;
MemPtr mm;
var mm2 = new MemPtr();
string fp;
string pname = ParsingName;
if (pname is object && pname.LastIndexOf(@"\") == pname.Length - 1)
{
pname = pname.Substring(0, pname.Length - 1);
}
var argriid = Guid.Parse(ShellIIDGuid.IShellItem);
var res = NativeShell.SHCreateItemFromParsingName(ParsingName, IntPtr.Zero, ref argriid, ref shitem);
_IconSize = (StandardIcons)iconSize;
int?argiIndex = null;
_Icon = Resources.GetFileIcon(ParsingName, FileObject.StandardToSystem(_IconSize), iIndex: ref argiIndex);
_IconImage = Resources.GetFileIconWPF(ParsingName, FileObject.StandardToSystem(_IconSize));
if (res == HResult.Ok)
{
var argbhid = Guid.Parse(ShellBHIDGuid.ShellFolderObject);
var argriid1 = Guid.Parse(ShellIIDGuid.IShellFolder2);
shitem.BindToHandler(IntPtr.Zero, ref argbhid, ref argriid1, out shfld);
_SysInterface = shfld;
shfld.EnumObjects(IntPtr.Zero, ShellFolderEnumerationOptions.Folders | ShellFolderEnumerationOptions.IncludeHidden | ShellFolderEnumerationOptions.NonFolders | ShellFolderEnumerationOptions.InitializeOnFirstNext, out enumer);
if (enumer != null)
{
var glist = new List <string>();
uint cf;
var x = IntPtr.Zero;
string pout;
// mm.AllocCoTaskMem((MAX_PATH * 2) + 8)
mm2.Alloc(NativeShell.MAX_PATH * 2 + 8);
do
{
cf = 0U;
mm2.ZeroMemory(0L, NativeShell.MAX_PATH * 2 + 8);
res = enumer.Next(1U, out x, out cf);
mm = x;
if (cf == 0L)
{
break;
}
if (res != HResult.Ok)
{
break;
}
mm2.IntAt(0L) = 2;
// shfld.GetAttributesOf(1, mm, attr)
shfld.GetDisplayNameOf(mm, (uint)ShellItemDesignNameOptions.ParentRelativeParsing, mm2.handle);
MemPtr inv;
if (IntPtr.Size == 4)
{
inv = (IntPtr)mm2.IntAt(1L);
}
else
{
inv = (IntPtr)mm2.LongAt(1L);
}
if (inv.Handle != IntPtr.Zero)
{
if (inv.CharAt(0L) != '\0')
{
fp = (string)inv;
var lpInfo = new SHFILEINFO();
// Dim sgfin As ShellFileGetAttributesOptions = 0,
// sgfout As ShellFileGetAttributesOptions = 0
int iFlags = User32.SHGFI_PIDL | User32.SHGFI_ATTRIBUTES;
lpInfo.dwAttributes = 0;
x = User32.SHGetItemInfo(mm.Handle, 0, ref lpInfo, Marshal.SizeOf(lpInfo), iFlags);
if (ParsingName is object)
{
if (pname.LastIndexOf(@"\") == pname.Length - 1)
{
pname = pname.Substring(0, pname.Length - 1);
}
pout = $@"{pname}\{fp}";
}
else
{
pout = fp;
}
if (lpInfo.dwAttributes == 0)
{
lpInfo.dwAttributes = (int)FileTools.GetFileAttributes(pout);
}
FileAttributes drat = (FileAttributes)(int)(lpInfo.dwAttributes);
if ((lpInfo.dwAttributes & (int)FileAttributes.Directory) == (int)FileAttributes.Directory && !File.Exists(pout))
{
dobj = new DirectoryObject(pout, _IsSpecial, false);
dobj.Parent = this;
dobj.IconSize = _IconSize;
_Children.Add(dobj);
_Folders.Add(dobj);
}
else
{
fobj = new FileObject(pout, _IsSpecial, true, _IconSize);
fobj.Parent = this;
fobj.IconSize = _IconSize;
_Children.Add(fobj);
}
}
inv.CoTaskMemFree();
}
mm.CoTaskMemFree();
}while (res == HResult.Ok);
mm2.Free();
}
}
OnPropertyChanged(nameof(Folders));
OnPropertyChanged(nameof(Icon));
OnPropertyChanged(nameof(IconImage));
OnPropertyChanged(nameof(IconSize));
OnPropertyChanged(nameof(ParsingName));
OnPropertyChanged(nameof(DisplayName));
}
public static T BindToHandler <T>(this IShellItem psi, IBindCtx pbc, Guid bhid) where T : class
{
return((T)psi.BindToHandler(pbc, bhid, typeof(T).GUID));
}
