64 lines
2.9 KiB
C#
64 lines
2.9 KiB
C#
#region Copyright (c) 2011-2023 Technosoftware GmbH. All rights reserved
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//-----------------------------------------------------------------------------
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// Copyright (c) 2011-2023 Technosoftware GmbH. All rights reserved
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// Web: https://www.technosoftware.com
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//
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// The source code in this file is covered under a dual-license scenario:
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// - Owner of a purchased license: SCLA 1.0
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// - GPL V3: everybody else
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//
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// SCLA license terms accompanied with this source code.
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// See SCLA 1.0: https://technosoftware.com/license/Source_Code_License_Agreement.pdf
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//
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// GNU General Public License as published by the Free Software Foundation;
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// version 3 of the License are accompanied with this source code.
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// See https://technosoftware.com/license/GPLv3License.txt
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//
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// This source code is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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// or FITNESS FOR A PARTICULAR PURPOSE.
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//-----------------------------------------------------------------------------
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#endregion Copyright (c) 2011-2023 Technosoftware GmbH. All rights reserved
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#region Using Directives
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using System;
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#endregion
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namespace Technosoftware.DaAeHdaClient.Hda
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{
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/// <summary>
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/// Defines functionality that is common to all OPC Data Access servers.
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/// </summary>
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public interface ITsCHdaBrowser : IDisposable
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{
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/// <summary>
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/// Returns the set of attribute filters used by the browser.
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/// </summary>
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TsCHdaBrowseFilterCollection Filters { get; }
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/// <summary>
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/// Browses the server's address space at the specified branch.
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/// </summary>
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/// <param name="itemId">The item id of the branch to search.</param>
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/// <returns>The set of elements that meet the filter criteria.</returns>
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TsCHdaBrowseElement[] Browse(OpcItem itemId);
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/// <summary>
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/// Begins a browsing the server's address space at the specified branch.
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/// </summary>
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/// <param name="itemId">The item id of the branch to search.</param>
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/// <param name="maxElements">The maximum number of elements to return.</param>
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/// <param name="position">The position object used to continue a browse operation.</param>
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/// <returns>The set of elements that meet the filter criteria.</returns>
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TsCHdaBrowseElement[] Browse(OpcItem itemId, int maxElements, out IOpcBrowsePosition position);
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/// <summary>
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/// Continues browsing the server's address space at the specified position.
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/// </summary>
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/// <param name="maxElements">The maximum number of elements to return.</param>
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/// <param name="position">The position object used to continue a browse operation.</param>
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/// <returns>The set of elements that meet the filter criteria.</returns>
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TsCHdaBrowseElement[] BrowseNext(int maxElements, ref IOpcBrowsePosition position);
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}
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}
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