/// <summary> Retrieve the human-readable name of the filter </summary>
protected string getName(System.Runtime.InteropServices.ComTypes.IMoniker moniker)
{
object bagObj = null;
IPropertyBag bag = null;
try
{
Guid bagId = typeof(IPropertyBag).GUID;
moniker.BindToStorage(null, null, ref bagId, out bagObj);
bag = (IPropertyBag)bagObj;
object val = "";
int hr = bag.Read("FriendlyName", out val, null);
//int hr = bag.Read("FriendlyName", ref val, IntPtr.Zero);
Marshal.ThrowExceptionForHR(hr);
string ret = val as string;
if ((ret == null) || (ret.Length < 1))
throw new NotImplementedException("Device FriendlyName");
return (ret);
}
catch (Exception)
{
return ("");
}
finally
{
bag = null;
if (bagObj != null)
Marshal.ReleaseComObject(bagObj); bagObj = null;
}
}
public int SelectedFilter(System.Runtime.InteropServices.ComTypes.IMoniker pMon)
{
if (_blockedFilters.Count > 0)
{
object objBag = null;
Guid ipGuid = typeof(IPropertyBag).GUID;//new Guid("55272A00-42CB-11CE-8135-00AA004BB851");
object objClsid = null;
object objFriendlyName = null;
try
{
pMon.BindToStorage(null, null, ref ipGuid, out objBag);
IPropertyBag bag = objBag as IPropertyBag;
if (bag != null)
{
bag.Read("CLSID", out objClsid, null);
bag.Read("FriendlyName", out objFriendlyName, null);
if (_blockedFilters.Contains(objClsid.ToString()) || _blockedFilters.Contains(objFriendlyName.ToString()))
{
FileLogger.Log("Blocked Filter: {0} - {1}", objFriendlyName, objClsid);
return -1;
}
}
}
finally
{
if (objBag != null)
Marshal.ReleaseComObject(objBag);
}
}
return 0;
}