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https://github.com/greenshot/greenshot
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Renamed the GreenshotPlugin to Greenshot.Base
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423 changed files with 30044 additions and 30000 deletions
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/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2021 Thomas Braun, Jens Klingen, Robin Krom
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*
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* For more information see: http://getgreenshot.org/
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* The Greenshot project is hosted on GitHub https://github.com/greenshot/greenshot
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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using Microsoft.Win32;
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namespace GreenshotPlugin.Core
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{
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/// <summary>
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/// A helper class for accessing the registry
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/// </summary>
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public static class RegistryKeyExtensions
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{
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/// <summary>
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/// Retrieve a registry value
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/// </summary>
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/// <param name="registryHive">RegistryHive like RegistryHive.LocalMachine</param>
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/// <param name="keyName">string with the name of the key</param>
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/// <param name="value">string with the name of the value below the key, null will retrieve the default</param>
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/// <param name="defaultValue">string with the default value to return</param>
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/// <returns>string with the value</returns>
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public static string ReadKey64Or32(this RegistryHive registryHive, string keyName, string value = null, string defaultValue = null)
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{
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string result = null;
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value ??= string.Empty;
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using var registryKey32 = RegistryKey.OpenBaseKey(registryHive, RegistryView.Registry32);
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// Logic for 32-bit Windows is just reading the key
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if (!Environment.Is64BitOperatingSystem)
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{
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using var key = registryKey32.OpenSubKey($@"SOFTWARE\{keyName}", false);
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if (key != null)
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{
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result = (string) key.GetValue(value);
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}
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if (string.IsNullOrEmpty(result))
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{
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result = defaultValue;
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}
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return result;
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}
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using var registryKey64 = RegistryKey.OpenBaseKey(registryHive, RegistryView.Registry64);
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// Logic for 64 bit Windows, is trying the key which is 64 bit
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using (var key = registryKey64.OpenSubKey($@"SOFTWARE\{keyName}", false))
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{
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if (key != null)
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{
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result = (string) key.GetValue(value);
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}
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if (!string.IsNullOrEmpty(result)) return result;
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}
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// if there is no value use the wow6432node key which is 32 bit
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using (var key = registryKey32.OpenSubKey($@"SOFTWARE\{keyName}", false))
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{
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if (key != null)
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{
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result = (string) key.GetValue(value);
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}
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}
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if (string.IsNullOrEmpty(result))
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{
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result = defaultValue;
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}
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return result;
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}
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}
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}
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