/// <summary>
/// Move the iterator to point to the next element in the colleciton.
/// </summary>
/// <typeparam name="T">The type of objects being iterated over.</typeparam>
/// <returns>The iterator to the next element, <c>null</c> if there isn't a next element.</returns>
public T Next <T>() where T : IOKitObject, new()
{
T ioKitObject = null;
var ioKitObjectHandle = NativeMethods.IOIteratorNext(Handle);
if (ioKitObjectHandle != System.IntPtr.Zero)
{
ioKitObject = IOKitObject.CreateIOKitObject <T>(ioKitObjectHandle);
}
return(ioKitObject);
}
private static IOConnect IORegisterForSystemPower(IOServiceInterestCallback systemPowerDelegate, NSObject refcon)
{
var ioNotificationPort = System.IntPtr.Zero;
var notifierHandle = System.IntPtr.Zero;
var callback = System.Runtime.InteropServices.Marshal.GetFunctionPointerForDelegate(systemPowerDelegate);
var nativeIOConnect = NativeMethods.IORegisterForSystemPower(refcon.Handle, out ioNotificationPort, callback, out notifierHandle);
var ioConnect = IOKitObject.CreateIOKitObject <IOConnect>(nativeIOConnect);
ioConnect.NotificationPort = new IONotificationPort(ioNotificationPort);
ioConnect.Notifier = IOKitObject.CreateIOKitObject <IOKitObject>(notifierHandle, n => IODeregisterForSystemPower(n));
return(ioConnect);
}