widget_form_callback │ filter-hook │ WP 2.8.0

Filters the widget instance's settings before displaying the control form.

Returning false effectively short-circuits display of the control form.

Usage

add_filter( 'widget_form_callback', 'wp_kama_widget_form_callback_filter', 10, 2 );

/**
 * Function for `widget_form_callback` filter-hook.
 * 
 * @param array     $instance The current widget instance's settings.
 * @param WP_Widget $widget   The current widget instance.
 *
 * @return array
 */
function wp_kama_widget_form_callback_filter( $instance, $widget ){

	// filter...
	return $instance;
}

$instance(array)

The current widget instance's settings.

$widget(WP_Widget)

The current widget instance.

Changelog

Where the hook is called

$instance = apply_filters( 'widget_form_callback', $instance, $this );

$instance = apply_filters(
	'widget_form_callback',
	$instance,
	$widget_object
);

Where the hook is used in WordPress