where is ctrl+newline handled in pywin editor?

[C or L Smith]

{Sorry about the no-wrap in the first post...}

I use the pywin environment on Windows for python code editing and
 interactive environment. 
 
 I've been able to find the place in the editor files where the enter
 key is handled and where the whitespace is stripped from a line and
 I've been able to get it to not leave any white space when a double
 return is entered. But what I would like to be able to do is find the
 place where ctrl+enter is handled so I could have it strip any
 trailing space from the current line before going back to the left
 margin. Is anyone acquainted enough with the pywin editor to be able
 to help with this?       
 
 Thanks,
  Chris