无法在FileSystemWatcher的重命名事件中访问剪贴板

I have an object of FileSystemWatcher called 'watcher' instantiated in my main function. I tried to store the text on clipboard in a string variable during the 'watcher.renamed' event but it always returns empty data? I checked the value of the variable with the help of a breakpoint, it remains empty.I have an object of FileSystemWatcher called 'w