嗨，当记忆棒连接到 PC 时，我想做一些事情。现在我使用计时器并在每个滴答声中检查是否插入了任何记忆棒（使用 DriveInfo 或查询 WMI） 是否有可用的事件驱动模型？例如，我在程序中使用了一个事件，每当将记忆棒插入计算机时就会引发该事件？
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You want to handle the WM_DEVICECHANGE message in your wndproc. When you handle that, you can also call RegisterDeviceNotification to get notification that the stick is being cleanly ejected.
When you recieve a WM_DEVICECHANGE, you want to check the wParam - DBT_DEVICEARRIVAL (0x800) is what you're looking for.
In C++, you should have no trouble with the wndproc. In c#, you'll want to override your main form's WndProc method and check m.Msg == 0x219 and m.WParam == 0x800. Note that not ALL of these will be a memory stick - but you can use this to notify you to check for drive insertion rather than a timer.
于 2010-10-05T12:43:27.073 回答