public IntPtr GetDisplayName(SIGDN sigdnName)
{
if (sigdnName == SIGDN.FILESYSPATH)
{
StringBuilder result = new StringBuilder(FileSystem.MAX_PATH);
if (!ILShell32.SHGetPathFromIDList(_pidl, result))
{
throw new ArgumentException();
}
return(Marshal.StringToHGlobalUni(result.ToString()));
}
else
{
//IShellFolder parentFolder = GetParent().GetIShellFolder();
IntPtr childPidl = ILShell32.ILFindLastID(_pidl);
StringBuilder builder = new StringBuilder(FileSystem.MAX_PATH);
builder.Length = 0; // TODO
//STRRET strret = new STRRET();
//TODO
//parentFolder.GetDisplayNameOf(childPidl,
// (SHGNO)((int)sigdnName & 0xffff), out strret);
//ShlWapi.StrRetToBuf(ref strret, childPidl, builder,
// (uint)builder.Capacity);
return(Marshal.StringToHGlobalUni(builder.ToString()));
}
}
public void Initialise(IntPtr pidl, string path)
{
this.PIDL = pidl;
this.RelativePIDL = ILShell32.ILFindLastID(pidl);
IntPtr folderPidl = PIDL;
SHFILEINFO?info = PidlManager.GetShFileInfo(pidl);
var dir = System.IO.Path.GetDirectoryName(path);
if ((info.Value.Attributes & SFGAO.SFGAO_FOLDER) == 0)
{
// Item folder
var handle = PidlManager.FromPath(dir);
folderPidl = handle.pidl;
SHFILEINFO?info2 = PidlManager.GetShFileInfo(folderPidl);
if (!info2.HasValue)
{
return; // new DirectoryNotFoundException
}
ParentItem = new ShellItem();
ParentItem.PIDL = folderPidl;
ParentItem.RelativePIDL = ILShell32.ILFindLastID(folderPidl);
ParentItem.DisplayName = info2.Value.szDisplayName;
ParentItem.Attributes = (SFGAO)info2.Value.Attributes;
ParentItem.IsFolder = (Attributes & SFGAO.SFGAO_FOLDER) != 0;
ParentItem.IsFileSystem = (Attributes & SFGAO.SFGAO_FILESYSTEM) != 0;
}
//IShellItem i = ILShell32.SHCreateItemFromParsingName(path, IntPtr.Zero,
// typeof(IShellItem).GUID);
int hr = 0;
IShellFolder pShellFolderInterface =
IFolder(folderPidl, desktopShellFolder.Value.ShellFolderInterface, ref hr);
if (pShellFolderInterface == null)
{
throw new NullReferenceException("SheelObject ShellFolderInterface error");
}
DisplayName = info.Value.szDisplayName;
Attributes = (SFGAO)info.Value.Attributes;
IsFolder = (Attributes & SFGAO.SFGAO_FOLDER) != 0;
IsFileSystem = (Attributes & SFGAO.SFGAO_FILESYSTEM) != 0;
if ((info.Value.Attributes & SFGAO.SFGAO_FOLDER) == 0)
{
this.ParentItem.InitFolder(folderPidl, dir, pShellFolderInterface, false);
}
else if (dir == null && path.EndsWith(@":\"))
{
this.InitFolder(PIDL, path, pShellFolderInterface, false);
}
else
{
this.InitFolder(PIDL, dir, pShellFolderInterface, false);
}
}
public int Compare(IShellItem psi, SICHINT hint)
{
ShellItemImpl other = (ShellItemImpl)psi;
ShellItemImpl myParent = GetParent();
ShellItemImpl theirParent = other.GetParent();
if (Shell32.ILIsEqual(myParent._pidl, theirParent._pidl))
{
return(myParent.GetIShellFolder().CompareIDs(
// (SHCIDS)
(IntPtr)hint,
ILShell32.ILFindLastID(_pidl),
ILShell32.ILFindLastID(other._pidl)));
}
else
{
return(1);
}
}