internal static void LoadIntoObjectFromByteArray(IPersistStream persistableObject, byte[] byteStream)
{
SafeHGlobalHandle hGlobal = SafeHGlobalHandle.AllocHGlobal(byteStream.Length);
IntPtr destination = SafeNativeMethods.GlobalLock(hGlobal);
if (IntPtr.Zero == destination)
{
throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new OutOfMemoryException());
}
try
{
Marshal.Copy(byteStream, 0, destination, byteStream.Length);
IStream pStm = SafeNativeMethods.CreateStreamOnHGlobal(hGlobal, false);
try
{
persistableObject.Load(pStm);
}
finally
{
Marshal.ReleaseComObject(pStm);
}
}
finally
{
SafeNativeMethods.GlobalUnlock(hGlobal);
}
}
internal static Byte[] PersistIPersistStreamToByteArray(IPersistStream persistableObject)
{
IStream stream = SafeNativeMethods.CreateStreamOnHGlobal(SafeHGlobalHandle.InvalidHandle, false);
try
{
persistableObject.Save(stream, true);
SafeHGlobalHandle hGlobal = SafeNativeMethods.GetHGlobalFromStream(stream);
if (null == hGlobal || IntPtr.Zero == hGlobal.DangerousGetHandle())
{
throw Fx.AssertAndThrow("HGlobal returned from GetHGlobalFromStream is NULL");
}
return(ConvertHGlobalToByteArray(hGlobal));
}
finally
{
Marshal.ReleaseComObject(stream);
}
}
internal static byte[] PersistIPersistStreamToByteArray(IPersistStream persistableObject)
{
byte[] buffer;
IStream pStm = SafeNativeMethods.CreateStreamOnHGlobal(SafeHGlobalHandle.InvalidHandle, false);
try
{
persistableObject.Save(pStm, true);
SafeHGlobalHandle hGlobalFromStream = SafeNativeMethods.GetHGlobalFromStream(pStm);
if ((hGlobalFromStream == null) || (IntPtr.Zero == hGlobalFromStream.DangerousGetHandle()))
{
throw Fx.AssertAndThrow("HGlobal returned from GetHGlobalFromStream is NULL");
}
buffer = ConvertHGlobalToByteArray(hGlobalFromStream);
}
finally
{
Marshal.ReleaseComObject(pStm);
}
return(buffer);
}