[lazarus] CVS changes

[Marc Weustink]

Hi, some updates.

After my last commit there were some problems with forms not sowing chorrectly.
I fixed this. The problem was that with my new code UpdateShowing was 
called. Here is the new form position calculated depending on 
TForm.Position, however the default top and left weren't stored so they 
could get random values, causing the form apear anywhere.

I also added some message debug code to retrieve a LM_ massage name

Marc