/// <summary>
/// Gets a <see cref="KnownFolderNative"/> object from an <see cref="IdList"/>
/// based PIDL if this represents a knownfolder, or otherwise, null.
/// </summary>
/// <param name="ashellListId"></param>
/// <returns></returns>
internal static KnownFolderNative FromPIDL(IdList ashellListId)
{
bool isDesktop = true;
if (ashellListId != null)
{
if (ashellListId.Size > 0)
{
isDesktop = false;
}
}
if (isDesktop == true)
{
return(KnownFolderHelper.FromPath(KF_IID.ID_FOLDERID_Desktop, true));
}
IntPtr pidl = default(IntPtr);
try
{
pidl = PidlManager.IdListToPidl(ashellListId);
KnownFolderManagerClass knownFolderManager = new KnownFolderManagerClass();
IKnownFolderNative iknownFolder;
HRESULT hr = knownFolderManager.FindFolderFromIDList(pidl, out iknownFolder);
return((hr == HRESULT.S_OK) ? new KnownFolderNative(iknownFolder) : null);
}
finally
{
pidl = PidlManager.ILFree(pidl);
}
}
/// <summary>
/// Populates an object that contains a known folder's properties
/// as specified by a special path stated in <paramref name="path"/>.
/// </summary>
/// <param name="path">The path for the requested known folder; (a virtual path).</param>
/// <returns>A known folder representing the specified name.</returns>
public static IKnownFolderProperties GetFolderPropertiesFromPath(string path)
{
using (var kf = KnownFolderHelper.FromPath(path))
{
if (kf != null)
{
return(KnownFolderHelper.GetFolderProperties(kf.Obj));
}
}
return(null);
}