Boxes in module - by: overfutz

How can i make Boxes?

// Example:
//$this->boxes=array(array(0=>array('file'=>'box_mybox.php','note'=>'My box 0','enabledbydefaulton'=>'Home'),1=>array('file'=>'myboxb.php','note'=>''),2=>array('file'=>'myboxc.php','note'=>'')));
$this->boxes[0] = 'box_mybox.php@mymodule';
$this->boxes[0] = 'My box 0';

But it is not working! The Box is not show in Boxes Menü Page!
box_mybox.php is in \mymodule\core\boxes\box_mybox.php!