
NSMovie and NSMovieView
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543
close (hidDeviceInterface) ;
( *hidDeviceInterface ) ->
Release (hidDeviceInterface) ;
Free the Mach
Port
Identifying
Devices
Make sure to call the following function:
mach_port_deallocate (mach_task_self () ,
masterPort) ;
Although the data structures for HID devices include space
for serial numbers, these rarely are used. As a result, appar-
ently identical devices can appear.
Beecause you can plug and play USB devices, it is possible for
a user to unplug a joystick or other HID device, plug it in
again, and discover it will--or will not~appear as a new de-
vice.
The IO kit uses the following ...