/// <summary>Initializes a new instance of the <see cref="IEnumFromNext{TItem}"/> class.</summary>
/// <param name="next">The method used to try to get the next item in the enumeration.</param>
/// <param name="reset">The method used to reset the enumeration to the first element.</param>
public IEnumFromCom(ComTryGetNext next, Action reset) : base()
{
if (next == null || reset == null)
{
throw new ArgumentNullException();
}
cnext = next;
base.next = TryGet;
base.reset = reset;
}
/// <summary>Initializes a new instance of the <see cref="IEnumFromNext{TItem}"/> class.</summary>
/// <param name="next">The method used to try to get the next item in the enumeration.</param>
/// <param name="reset">The method used to reset the enumeration to the first element.</param>
/// <param name="makeNew">The method used to create the default value placed in the array for <paramref name="next"/>.</param>
public IEnumFromCom(ComTryGetNext next, Action reset, Func <TItem> makeNew = null) : base()
{
if (next is null || reset is null)
{
throw new ArgumentNullException();
}
cnext = next;
make = makeNew ?? DefaultMaker;
base.next = TryGet;
base.reset = reset;
}
/// <summary>Initializes a new instance of the <see cref="IEnumFromCom{TItem}"/> class from a COM enumeration interface instance.</summary>
/// <param name="enumObj">The COM enumeration interface instance.</param>
public IEnumFromCom(ICOMEnum <TItem> enumObj) : base()
{
cnext = (ComTryGetNext)Delegate.CreateDelegate(typeof(ComTryGetNext), enumObj, "Next");
base.next = TryGet;
base.reset = (Action)Delegate.CreateDelegate(typeof(Action), enumObj, "Reset");
}
