Search – what query (WP_Query) is used to list the results (loop)?

Hi there

I’m trying to get my search running (some trouble with plugins and all)
but thats not of interest here.

I was just wondering, on my search.php page I can list the posts found within the search in a loop.
But what query is used here?
This query must be something global right?

I hope somebody can tell me something about the ‘query_posts’ of the search.

Thx

Cheers