• Getting and Setting Connection Attributes

• attributeForKey:

• attributeIsReadOnly:

• connectionAttributes

• formatDescription

• isEnabled

• mediaType

• owner

• setAttribute:forKey:

• setConnectionAttributes:

• setEnabled:

• Audio Attributes

• QTCaptureConnectionAttributeDidChangeNotification

• QTCaptureConnectionAttributeWillChangeNotification

• QTCaptureConnectionChangedAttributeKey

• QTCaptureConnectionFormatDescriptionDidChangeNotification

• QTCaptureConnectionFormatDescriptionWillChangeNotification