[yesea]

Hi all,
I build one application to capture video from iSight . Now ,want make notification when the iSight device turn on ,turn off and the open iris ,close iris . now ,i can get the message when the iSight plug on and off . but not iris open and close . anybody can show one demo to notify the isght's iris open and close . Follow is my code piece .

Code:
===source code ====
/***  add matching notification for FireWireunit for first publish  ***/
	io_iterator_t	iterator	= MACH_PORT_NULL;
	IOMasterPort(MACH_PORT_NULL, &masterPort);
	gNotifyPort = IONotificationPortCreate ( kIOMasterPortDefault );
	// Add it to the runloop
	CFRunLoopAddSource ( CFRunLoopGetCurrent ( ),
					 IONotificationPortGetRunLoopSource ( gNotifyPort ), 
					 kCFRunLoopCommonModes );
	CFMutableDictionaryRef   matchingDictionary = IOServiceMatching ("IOFireWireUnit");
	// Add matching notifications for optical devices
	IOServiceAddMatchingNotification ( gNotifyPort,
									   kIOFirstPublishNotification, 
									   matchingDictionary,  
									   &ServiceMatched,
									   NULL,
									   &iterator );
/***  add matching notification for FireWireunit for first publish  ***/

	io_service_t	service = MACH_PORT_NULL;
	io_iterator_t	ignored = MACH_PORT_NULL;
	kern_return_t		kr;
	IOCFPlugInInterface**  plugInInterface=NULL;
	SInt32 			score;
	while ( ( service = IOIteratorNext ( iterator ) ) != MACH_PORT_NULL )
	{
                io_name_t		deviceName;
                CFStringRef		deviceNameAsCFString;	
                UInt32			locationID;

               kr = IOCreatePlugInInterfaceForService(service, kIOFireWireLibTypeID,
                                                                   kIOCFPlugInInterfaceID, &plugInInterface, &score);
                (*plugInInterface)->Release(plugInInterface);				// Attach a general interest notification to this object
		IOServiceAddInterestNotification ( gNotifyPort,
							           service,
								  kIOBusyInterest,
								  ServiceInterest,
								  NULL,
								  &ignored );
        }

/*** ServiceInterest is the callback , when notification apply***/

====

[yesea]

, the code piece is so ugly that my post .

[Catfish_Man]

Use the [ code ] [/ code ] tags

[proton]

You probably want to read the iSight Programming Guide from Apple. You can register for updates through a kIOMessagePropertiesChanged notification as mentioned in Iris Unit section of the documentation.

- proton