public static void WatchDir(string inputDir, string fileRegEx, OnCreate OnCreated, OnRename OnRename = null)
{
FileSystemWatcher watcher = new FileSystemWatcher();
watcher.Path = inputDir;
//watcher.NotifyFilter = NotifyFilters.LastWrite;
watcher.Filter = fileRegEx;
var handler = new FileSystemEventHandler(OnCreated);
watcher.IncludeSubdirectories = true;
//watcher.Changed += handler;
watcher.Created += handler;
if (OnRename != null)
{
watcher.Renamed += new RenamedEventHandler(OnRename);
}
watcher.EnableRaisingEvents = true;
}