//  Copyright (c) Microsoft Corporation. All rights reserved.
//
//  WindowsRuntimeAPISet

import "oaidl.idl";
import "inspectable.idl";
import "asyncinfo.idl";
import "eventtoken.idl";
#include <sdkddkver.h>
import "windowscontracts.idl";

namespace Windows.Foundation.Collections
{
    [version(NTDDI_WIN8)]
    [contract(Windows.Foundation.FoundationContract, 1)]
    typedef enum CollectionChange 
    {
        Reset,          // Much of the Vector has changed.
        ItemInserted,   // An item added to the Vector.
                        // NewIndex contains the index of the item that was added.
        ItemRemoved,    // An item deleted from the Vector.
                        // NewIndex contains the index of the item that was deleted
        ItemChanged,    // An item changed in the Vector.
                        // NewIndex contains the index of the item that was changed.
    } CollectionChange;

    [
        object,
        uuid(575933df-34fe-4480-af15-07691f3d5d9b),
        pointer_default(unique),
        version(NTDDI_WIN8)
    ]
    [contract(Windows.Foundation.FoundationContract, 1)]
    interface IVectorChangedEventArgs : IInspectable
    {
        [propget] HRESULT CollectionChange ([out, retval] CollectionChange * value);
        [propget] HRESULT Index ([out, retval] unsigned* value);
    };


}