/*
 * Greenshot - a free and open source screenshot tool
 * Copyright (C) 2007-2011  Thomas Braun, Jens Klingen, Robin Krom
 * 
 * For more information see: http://getgreenshot.org/
 * The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 1 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
using System;
using Microsoft.Win32;

namespace GreenshotPlugin.Core {
	/// <summary>
	/// Description of IEHelper.
	/// </summary>
	public class IEHelper {
		// Internet explorer Registry key
		private const string IE_KEY = @"Software\Microsoft\Internet Explorer";
		/// <summary>
		/// Helper method to get the IE version
		/// </summary>
		/// <returns></returns>
		public static int IEVersion() {
            int version = 7;
			// Seeing if IE 9 is used, here we need another offset!
			using (RegistryKey ieKey = Registry.LocalMachine.OpenSubKey(IE_KEY, false)) {
	            if (ieKey != null) {
		            object versionKey = ieKey.GetValue("Version");
		            if (versionKey != null) {
			            int.TryParse(versionKey.ToString().Substring(0,1), out version);
		            }
	            }
			}
            return version;
		}

		private IEHelper() {
		}
	}
}