WordPress at a glance
filter is not described

load_textdomain_mofile filter-hook . WP 2.9.0

Filters MO file path for loading translations for a specific text domain.

Usage

add_filter( 'load_textdomain_mofile', 'filter_function_name_1009', 10, 2 );
function filter_function_name_1009( $mofile, $domain ){
	// filter...

	return $mofile;
}
$mofile(string)
Path to the MO file.
$domain(string)
Text domain. Unique identifier for retrieving translated strings.

Where the hook is called

load_textdomain()
wp-includes/l10n.php 630
$mofile = apply_filters( 'load_textdomain_mofile', $mofile, $domain );

Where the hook is used (in WP core)

Does not used.