36 lines
1.3 KiB
C#
36 lines
1.3 KiB
C#
/*
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* Copyright (c) 2017 ETH Zürich, Educational Development and Technology (LET)
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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using System;
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using SafeExamBrowser.Contracts.Configuration;
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namespace SafeExamBrowser.Contracts.UserInterface
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{
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public delegate void TaskbarButtonClickHandler(Guid? instanceId = null);
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public interface ITaskbarButton
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{
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/// <summary>
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/// OnClick handler, executed when the user clicks on the application button. If multiple instances of
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/// an application are active, the handler is only executed when the user selects one of the instances.
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/// </summary>
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event TaskbarButtonClickHandler OnClick;
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/// <summary>
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/// Registers a new instance of an application, to be displayed if the user clicks the taskbar button
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/// when there are already one or more instances of the same application running.
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/// </summary>
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void RegisterInstance(IApplicationInstance instance);
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/// <summary>
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/// Unregisters an application instance, e.g. if it gets closed.
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/// </summary>
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/// <param name="id">The identifier for the application instance.</param>
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void UnregisterInstance(Guid id);
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}
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}
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