WordPress at a glance
action is not described

wp_tiny_mce_init action-hook . WP 3.9.0

Fires after tinymce.js is loaded, but before any TinyMCE editor instances are created.

Usage

add_action( 'wp_tiny_mce_init', 'action_function_name_4824' );
function action_function_name_4824( $mce_settings ){
	// action...
}
$mce_settings(array)
TinyMCE settings array.

Where the hook is called

_WP_Editors::editor_js()
wp-includes/class-wp-editor.php 1523
do_action( 'wp_tiny_mce_init', self::$mce_settings );

Where the hook is used (in WP core)

Does not used.