/// <summary>
/// Check whether the key to be monitored exists, and then
/// start ManagementEventWatcher to watch the RegistryKeyChangeEvent
/// </summary>
/// <returns>True if the ManagementEventWatcher starts successfully.</returns>
bool StartMonitor()
{
RegistryKey hive = cmbHives.SelectedValue as RegistryKey;
var keyPath = tbRegkeyPath.Text.Trim();
try
{
watcher = new RegistryWatcher(hive, keyPath);
}
// The constructor of RegistryWatcher may throw a SecurityException when
// the key to monitor does not exist.
catch (System.ArgumentException ex)
{
MessageBox.Show(ex.Message);
return(false);
}
// The constructor of RegistryWatcher may throw a SecurityException when
// current user does not have the permission to access the key to monitor.
catch (System.Security.SecurityException)
{
string message = string.Format(
@"You do not have permission to access the key {0}\{1}.",
hive.Name,
keyPath);
MessageBox.Show(message);
return(false);
}
try
{
// Set up the handler that will handle the change event.
watcher.RegistryKeyChangeEvent += new EventHandler <RegistryKeyChangeEventArgs>(
watcher_RegistryKeyChangeEvent);
// Start listening for events.
watcher.Start();
return(true);
}
catch (System.Runtime.InteropServices.COMException comException)
{
MessageBox.Show("An error occurred: " + comException.Message);
return(false);
}
catch (ManagementException managementException)
{
MessageBox.Show("An error occurred: " + managementException.Message);
return(false);
}
}
/// <summary>
/// 检查被监控的项是否存在，然后启动ManagementEventWatcher来监控
/// RegistryKeyChangeEvent事件。
/// </summary>
/// <returns>如果ManagementEventWatcher启动成功则为真。</returns>
bool StartMonitor()
{
RegistryKey hive = cmbHives.SelectedValue as RegistryKey;
var keyPath = tbRegkeyPath.Text.Trim();
try
{
watcher = new RegistryWatcher(hive, keyPath);
}
// 当被监控的项不存在时，RegistryWatcher的构造器可能会抛出一个SecurityException异常。
catch (System.ArgumentException ex)
{
MessageBox.Show(ex.Message);
return(false);
}
// 当前用户没有访问被监控项的权限时，RegistryWatcher的构造器可能会抛出一个
// SecurityException异常。
catch (System.Security.SecurityException)
{
string message = string.Format(
@"您没有访问项 {0}\{1} 的权限。",
hive.Name,
keyPath);
MessageBox.Show(message);
return(false);
}
try
{
// 设置用于处理变更事件的句柄。
watcher.RegistryKeyChangeEvent += new EventHandler <RegistryKeyChangeEventArgs>(
watcher_RegistryKeyChangeEvent);
// 启动监听事件。
watcher.Start();
return(true);
}
catch (System.Runtime.InteropServices.COMException comException)
{
MessageBox.Show("发生错误： " + comException.Message);
return(false);
}
catch (ManagementException managementException)
{
MessageBox.Show("发生错误： " + managementException.Message);
return(false);
}
}
/// <summary>
/// 检查被监控的项是否存在，然后启动ManagementEventWatcher来监控
/// RegistryKeyChangeEvent事件。
/// </summary>
/// <returns>如果ManagementEventWatcher启动成功则为真。</returns>
bool StartMonitor()
{
RegistryKey hive = cmbHives.SelectedValue as RegistryKey;
var keyPath = tbRegkeyPath.Text.Trim();
try
{
watcher = new RegistryWatcher(hive, keyPath);
}
// 当被监控的项不存在时，RegistryWatcher的构造器可能会抛出一个SecurityException异常。
catch (System.ArgumentException ex)
{
MessageBox.Show(ex.Message);
return false;
}
// 当前用户没有访问被监控项的权限时，RegistryWatcher的构造器可能会抛出一个
// SecurityException异常。
catch (System.Security.SecurityException)
{
string message = string.Format(
@"您没有访问项 {0}\{1} 的权限。",
hive.Name,
keyPath);
MessageBox.Show(message);
return false;
}
try
{
// 设置用于处理变更事件的句柄。
watcher.RegistryKeyChangeEvent += new EventHandler<RegistryKeyChangeEventArgs>(
watcher_RegistryKeyChangeEvent);
// 启动监听事件。
watcher.Start();
return true;
}
catch (System.Runtime.InteropServices.COMException comException)
{
MessageBox.Show("发生错误： " + comException.Message);
return false;
}
catch (ManagementException managementException)
{
MessageBox.Show("发生错误： " + managementException.Message);
return false;
}
}