Syntax Highlighting for CRichEditView

I am trying to create a program in VC6.0. SDI App on Win98.  Trying to create a simple syntax highligher for the perl scripting I do.  

I can't see to find how to make it call my function when the text is changed. That way I would do that syntax highlight again.


BOOL CPerlScripterView::PreTranslateMessage(MSG* pMsg)
{
     if (n == 258){ // found the number by monitoring the messages and this one seamed to be passed when ever a key was pressed
          ...
     }
     return CRichEditView::PreTranslateMessage(pMsg);
}

void CPerlScripterView::OnEditPaste()
{
     GetRichEditCtrl().Paste();
     ...
}

void CPerlScripterView::OnEditCut()
{
     GetRichEditCtrl().Cut();
     ...
}

this seams to work but it doesn't take care of everything that can happen, for example someone uses the replace text option.

Is there a window message like EM_CHANGE.. I belive that works for CEditView.