interlace /source/library/Interlace/Utilities/AsyncControlThreadInvoker.cs

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#region Using Directives and Copyright Notice

// Copyright (c) 2007-2010, Computer Consultancy Pty Ltd
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
//       documentation and/or other materials provided with the distribution.
//     * Neither the name of the Computer Consultancy Pty Ltd nor the
//       names of its contributors may be used to endorse or promote products
//       derived from this software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
// ARE DISCLAIMED. IN NO EVENT SHALL COMPUTER CONSULTANCY PTY LTD BE LIABLE 
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 
// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
// DAMAGE.

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;

#endregion

namespace Interlace.Utilities
{
    public class AsyncControlThreadInvoker : IThreadInvoker
    {
        Control _control;
        IAsyncResult _result;

        public AsyncControlThreadInvoker(Control control)
        {
            _control = control;
        }

        #region IThreadInvoker Members

        public object Invoke(Delegate method)
        {
            _result = _control.BeginInvoke(new MethodInvoker(delegate()
            {
                _control.Invoke(method);

                if (_result != null)
                {
                    _control.EndInvoke(_result);
                }
            }));

            return null;
        }

        public object Invoke(Delegate method, params object[] args)
        {
            _result = _control.BeginInvoke(new MethodInvoker(delegate()
            {
                _control.Invoke(method, args);

                if (_result != null)
                {
                    _control.EndInvoke(_result);
                }
            }));

            return null;
        }

        #endregion
    }
}
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