Registry Watcher C＃实现RegistryKeyChangeEvent

Question

好的，我尝试this并观看了this。我按照我的代码 -

// Construct the query string:HKEY_LOCAL_MACHINE
string queryString = string.Format(@"SELECT * FROM RegistryKeyChangeEvent WHERE Hive = 'HKEY_LOCAL_MACHINE' AND KeyPath = 'SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall' ");

WqlEventQuery query = new WqlEventQuery();
query.QueryString = queryString;
query.EventClassName = "RegistryKeyChangeEvent";
query.WithinInterval = new TimeSpan(0, 0, 0, 1);
this.Query = query;

this.EventArrived += new EventArrivedEventHandler(RegistryWatcher_EventArrived);

不幸的是，当我致电Start()时会引发异常 - ManagementException并说“Unparsable query。”

Answer 1

经过一些解决方法后，我找到了使用ManagementScope而不是WqlEventQuery一劳永逸地解决它的方法：

ManagementScope Scope = new ManagementScope("\\\\.\\root\\default");
EventQuery Query = new EventQuery(@"SELECT * FROM RegistryKeyChangeEvent WHERE Hive='HKEY_LOCAL_MACHINE' AND KeyPath='SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall'");
ManagementEventWatcher watcher = new ManagementEventWatcher(Scope, Query);
m_watcher.EventArrived += new EventArrivedEventHandler(RegistryWatcher_EventArrived);
m_watcher.Start();

它解析查询的方式似乎有问题，但现在很好。