Slider query change

Hi all

How would i change this code to display certain categories rather than special selected posts?

//Slider 1 query

 $querydetails = "
 SELECT wposts.*
 FROM $wpdb->posts wposts, $wpdb->postmeta wpostmeta
 WHERE wposts.ID = wpostmeta.post_id
 AND wpostmeta.meta_key = 'pm_featured_post_1'
 AND wpostmeta.meta_value = '1'
 AND wposts.post_status = 'publish'
 AND wposts.post_type IN ('post', 'page')
 ORDER BY wposts.post_date DESC
 ";

I thought it would be using this:
$query = new WP_Query( array( ‘category_name’ => ‘xbox’ ) );

but not sure
Apologies if i have posted in the wrong place.

Any help offered would be greatly appreciated