public RegistryChangeMonitor(RegistrySetting registrySetting)
{
this.RegistrySettings = new List <RegistrySetting>();
this.RegistrySettings.Add(registrySetting);
this.RegistryPath = (RegistryHelper.GetRegistryHiveLongName(registrySetting.RegistryHive) + @"\" + registrySetting.SubKeyPath).ToUpper();
this._filter = REG_NOTIFY_CHANGE.LAST_SET;
}
private void InitializeRegistrySetting()
{
foreach (string key in ConfigurationManager.AppSettings.AllKeys)
{
if (key.StartsWith("RegistrySetting"))
{
RegistrySetting registrySetting = RegistrySetting.Parse(ConfigurationManager.AppSettings[key]);
RegistrySettings.Add(registrySetting);
RegistryHelper.SetRegistryValue(registrySetting);
MaintainRegistrySetting(registrySetting);
}
}
}
public static object GetRegistryValue(RegistrySetting registrySetting)
{
using (RegistryKey baseKey = RegistryKey.OpenBaseKey(registrySetting.RegistryHive, RegistryView.Registry64))
{
using (RegistryKey key = baseKey.OpenSubKey(registrySetting.SubKeyPath, false))
{
if (key == null)
{
throw new Exception(string.Format("Key does not exist: {0}", registrySetting.FullKeyPath));
}
return(key.GetValue(registrySetting.Name));
}
}
}
private void MaintainRegistrySetting(RegistrySetting registrySetting)
{
RegistryChangeMonitor monitor = RegistryChangeMonitors.ContainsKey(registrySetting.FullKeyPath)
? RegistryChangeMonitors[registrySetting.FullKeyPath]
: null;
if (monitor == null)
{
monitor = new RegistryChangeMonitor(registrySetting);
monitor.Changed += RegistrySettingChanged;
monitor.Start();
RegistryChangeMonitors.Add(registrySetting.FullKeyPath, monitor);
}
else
{
monitor.AddRegistrySetting(registrySetting);
}
}
/// <summary>
/// Parses a RegistrySetting represented as a single pipe-delimited string (e.g., "HKCU\Console\CursorSize|DWORD|25").
/// </summary>
/// <param name="text">String representing a RegistrySetting</param>
/// <returns>New <see cref="RegistrySetting"/> instance.</returns>
public static RegistrySetting Parse(string text)
{
RegistrySetting setting = new RegistrySetting();
string[] settingSegments = text.Split(new char[1] {
'|'
}, 3);
List <string> pathSegments = new List <string>(settingSegments[0].Split('\\'));
if (settingSegments.Length != 3)
{
throw new Exception("setting must consist of three pipe-delimited segments: full path, value kind, and value");
}
if (pathSegments.Count < 3)
{
throw new Exception("Registry key path must consist of at least three backslash-delimited segments: hive, subkey path, and name");
}
// RegistryHive
setting.RegistryHive = RegistryHelper.GetRegistryHive(pathSegments[0]);
// SubKeyPath
setting.SubKeyPath = string.Join(@"\", pathSegments.GetRange(1, pathSegments.Count - 2));
// Name
setting.Name = pathSegments[pathSegments.Count - 1];
// RegistryValueKind
setting.RegistryValueKind = RegistryHelper.GetValueKind(settingSegments[1]);
// Value
switch (setting.RegistryValueKind)
{
case RegistryValueKind.DWord: setting.Value = uint.Parse(settingSegments[2]); break;
case RegistryValueKind.QWord: setting.Value = ulong.Parse(settingSegments[2]); break;
case RegistryValueKind.String: setting.Value = settingSegments[2]; break;
default: throw new Exception("Unsupported registry value kind: " + settingSegments[1]);
}
return(setting);
}
public void AddRegistrySetting(RegistrySetting registrySetting)
{
this.RegistrySettings.Add(registrySetting);
}
public static bool SetRegistryValue(RegistrySetting registrySetting)
{
return(SetRegistryValue(registrySetting.RegistryHive, registrySetting.SubKeyPath, registrySetting.Name, registrySetting.Value, registrySetting.RegistryValueKind));
}
public static ulong GetRegistryQWordValue(RegistrySetting registrySetting)
{
return((ulong)GetRegistryValue(registrySetting));
}
public static uint GetRegistryDWordValue(RegistrySetting registrySetting)
{
return((uint)GetRegistryValue(registrySetting));
}
public static string GetRegistryStringValue(RegistrySetting registrySetting)
{
return((string)GetRegistryValue(registrySetting));
}
private void RestoreRegistrySetting(RegistrySetting registrySetting)
{
RegistryHelper.SetRegistryValue(registrySetting);
}