Determines if application changed message, or it is still intact.

A Boolean value.  

object.Changed

The Changed Property syntax has these parts:

Changed property is a readonly property that gives you information if, during your mailbox maintenance, have changed the message or not. If Changed = True, this means that you made some action that will result in (maybe only a bit) different mailbox file when you call wodMailbox.Update method.

If Changed = True this will also mean that wodMailbox.Changed = True also. This information is not only for your usage. wodMailbox also uses it for updating mailbox contents if AutoUpdate is set or Update is called manually.

Once you call Update method, Changed property will be set to False.