How could i get the result urls in a google search?

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C++

Assume that i got the search result page as string in HTML format. The key word is "google earth", so the URL may be like this:
http://www.google.com/search?hl=en&newwindow=1&q=google+earth&aq=f&aqi=&aql=&oq=&gs_rfai=
In the first search result page, there are ten results, i want to get the information about the ten results, what should i do then.
In a word, i have an URL(the result of search) and how could i get the results(URL, title, description)?