active Notify when a Patcher window is the active window active will output a 1 when the Patcher window becomes active (i.e., it is the front-most window and its title bar is hilited), and output a 0 when the Patcher window becomes inactive. You can use this to change the user interface of your window. For example, in this patcher, messages from the key object are turned off when the window is made inactive. Make the Max window the active window and type, and you will notice that numbers are no longer printed in the Max window when you press a key.

from the library : Max Format : External Environment : max commercial Max 4.x http://www.cycling74.com