public static ComStorage OpenStorageOnStream(Stream stream, ComStorage.OpenMode openMode)
{
Util.ThrowOnNullArgument(stream, "stream");
ComStorage.CheckOpenMode(openMode, "openMode", ComStorage.validOpenModes);
ComStorage comStorage = null;
Interop.IStorage storage = null;
try
{
LockBytesOnStream lockBytes = new LockBytesOnStream(stream);
int num = Interop.StgOpenStorageOnILockBytes(lockBytes, IntPtr.Zero, (uint)openMode, IntPtr.Zero, 0U, out storage);
if (num != 0)
{
throw new MsgStorageException(MsgStorageErrorCode.OpenStorageOnStreamFailed, MsgStorageStrings.FailedOpenStorage("ILockBytes"), num);
}
comStorage = new ComStorage(storage);
}
finally
{
if (comStorage == null && storage != null)
{
Marshal.ReleaseComObject(storage);
}
}
return(comStorage);
}
public static ComStorage OpenFileStorage(string filename, ComStorage.OpenMode openMode)
{
Util.ThrowOnNullArgument(filename, "filename");
ComStorage.CheckOpenMode(openMode, "openMode", ComStorage.validOpenModes);
object obj = null;
ComStorage result;
try
{
Guid iidistorage = Interop.IIDIStorage;
int num = Interop.StgOpenStorageEx(filename, (uint)openMode, 0, 0U, IntPtr.Zero, IntPtr.Zero, ref iidistorage, out obj);
if (num != 0)
{
throw new MsgStorageException(MsgStorageErrorCode.OpenStorageFileFailed, MsgStorageStrings.FailedOpenStorage(filename), num);
}
Interop.IStorage storage = obj as Interop.IStorage;
if (storage == null)
{
throw new MsgStorageException(MsgStorageErrorCode.OpenStorageFileFailed, MsgStorageStrings.FailedOpenStorage(filename));
}
obj = null;
result = new ComStorage(storage);
}
finally
{
if (obj != null)
{
Marshal.ReleaseComObject(obj);
}
}
return(result);
}
