private static int OnDuplcateUserData(int serial_number, IntPtr pNativeUserData)
{
int rc = 0;
UserData ud = FromSerialNumber(serial_number);
if (ud != null)
{
try
{
Type t = ud.GetType();
UserData new_ud = System.Activator.CreateInstance(t) as UserData;
if (new_ud != null)
{
new_ud.m_serial_number = UserData.m_next_serial_number++;
new_ud.m_pNativePointer = pNativeUserData;
UserData.StoreInRuntimeList(new_ud);
new_ud.OnDuplicate(ud);
rc = new_ud.m_serial_number;
}
}
catch (Exception ex)
{
Runtime.HostUtils.ExceptionReport(ex);
}
}
return(rc);
}
/// <summary>
/// If the userdata is already in a different UserDataList, it
/// will be removed from that list and added to this list.
/// </summary>
/// <param name="userdata">Data element.</param>
/// <returns>Whether this operation succeeded.</returns>
public bool Add(UserData userdata)
{
if (!(userdata is SharedUserDictionary))
{
Type t = userdata.GetType();
System.Reflection.ConstructorInfo constructor = t.GetConstructor(System.Type.EmptyTypes);
if (!t.IsPublic || constructor == null)
{
throw new ArgumentException("userdata must be a public class and have a parameterless constructor");
}
}
IntPtr pOnObject = m_parent.ConstPointer();
IntPtr pUserData = userdata.NonConstPointer(true);
const bool detachIfNeeded = true;
bool rc = UnsafeNativeMethods.ON_Object_AttachUserData(pOnObject, pUserData, detachIfNeeded);
if (rc)
{
UserData.StoreInRuntimeList(userdata);
}
return(rc);
}
