Getting number of hits from Google API

I've tried to find a way to do this, but without success. I'm looking for a way to find out how many hits a search gets, and I don't want to do this manually, o开发者_如何学Gor with regex searching trough the html code. Surely the Google APIs must have a simple way to do this.

Does anyone know of one?

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You're probably looking for the Google AJAX Search API

Specifically estimatedResultCount, from here