CheckIN notification

Hi

I want to add to checkin notification information about changes in files (differential)

For example
Old code:

-                if (AutoUpdate() == 0)

<ins>+            if (AutoUpdate() == 0)</ins>

<ins>+            {</ins>

New code:
<ins>private static void ToEndOfContract(ToolStripMenuItem) </ins>

It is possible to do it (it works in TortoiseSVN)