WordPress at a glance
filter is not described

pre_option_enable_xmlrpc filter-hook . WP 1.0

Respect old get_option() filters left for back-compat when the 'enable_xmlrpc' option was deprecated in 3.5.0. Use the 'xmlrpc_enabled' hook instead.

Usage

add_filter( 'pre_option_enable_xmlrpc', 'filter_function_name_8040' );
function filter_function_name_8040( $false ){
	// filter...

	return $false;
}
$false
-

Where the hook is called

wp_xmlrpc_server::login()
wp-includes/class-wp-xmlrpc-server.php 238
$enabled = apply_filters( 'pre_option_enable_xmlrpc', false );

Where the hook is used (in WP core)

Does not used.