Indicates one or more reasons why the event occurred, which might help you understand what happened in the buffer.
[System.Runtime.InteropServices.Guid("11F0CB7F-4F63-4E09-B99C-92A6CC5F84CE")] public enum vsTextChanged
The insertion point was moved.
A find operation moved the insertion point.
A change to text occurred that affected more than one line, such as pasting with new lines, deleting across lines, or replacing all.
A new line was created.
A replace all operation occurred.
A line was committed by saving the file.