//Copyright (c) Microsoft Corporation. All rights reserved. using System; using System.Collections.Generic; using System.Runtime.InteropServices; using MS.WindowsAPICodePack.Internal; namespace Microsoft.WindowsAPICodePack.Shell { internal class EnumUnknownClass : IEnumUnknown { List<ICondition> conditionList = new List<ICondition>(); int current = -1; internal EnumUnknownClass(ICondition[] conditions) { conditionList.AddRange(conditions); } #region IEnumUnknown Members public HRESULT Next(uint requestedNumber, ref IntPtr buffer, ref uint fetchedNumber) { current++; if (current < conditionList.Count) { buffer = Marshal.GetIUnknownForObject(conditionList[current]); fetchedNumber = 1; return HRESULT.S_OK; } else { return HRESULT.S_FALSE; } } public HRESULT Skip(uint number) { int temp = current + (int)number; if (temp > (conditionList.Count - 1)) return HRESULT.S_FALSE; else { current = temp; return HRESULT.S_OK; } } public HRESULT Reset() { current = -1; return HRESULT.S_OK; } public HRESULT Clone(out IEnumUnknown result) { result = new EnumUnknownClass(this.conditionList.ToArray()); return HRESULT.S_OK; } #endregion } }
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