IPersistMessage::IsDirty
Applies to: Outlook 2013 | Outlook 2016
Checks the form for changes that were made since the last save.
HRESULT IsDirty( void );
Parameters
None
Return value
S_OK
The form has changes that were made since it was last saved.
S_FALSE
The form does not have changes that were made since it was last saved.
Remarks
Form viewers call the IPersistMessage::IsDirty method to determine whether the message has unsaved data.