I want to get a notification for when my MacBook’s lid is closed, when an external monitor is connected.
Lion prevents the computer from sleeping when an external monitor is plugged in, so I can’t listen for sleep notifications.
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I want to get a notification for when my MacBook’s lid is closed, when an external monitor is connected.
Lion prevents the computer from sleeping when an external monitor is plugged in, so I can’t listen for sleep notifications.
You can use Quartz Display Services to watch for changes to the display configuration. See
CGDisplayRegisterReconfigurationCallback().