February 11, 2011 
Definition:
function add_custom_background( $header_callback = '', $admin_header_callback = '', $admin_image_div_callback = '' ) {}
Add callbacks for background image display.
The parameter $header_callback callback will be required to display the content for the ‘wp_head’ action. The parameter $admin_header_callback callback will be added to Custom_Background class and that will be added to the ‘admin_menu’ action.
Parameters
- callback $header_callback: Call on ‘wp_head’ action.
- callback $admin_header_callback: Call on custom background administration screen.
- callback $admin_image_div_callback: Output a custom background image div on the custom background administration screen. Optional.
Source code
function add_custom_background( $header_callback = '', $admin_header_callback = '', $admin_image_div_callback = '' ) {
if ( isset( $GLOBALS['custom_background'] ) )
return;
if ( empty( $header_callback ) )
$header_callback = '_custom_background_cb';
add_action( 'wp_head', $header_callback );
add_theme_support( 'custom-background', array( 'callback' => $header_callback ) );
if ( ! is_admin() )
return;
require_once( ABSPATH . 'wp-admin/custom-background.php' );
$GLOBALS['custom_background'] = new Custom_Background( $admin_header_callback, $admin_image_div_callback );
add_action( 'admin_menu', array( &$GLOBALS['custom_background'], 'init' ) );
}
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