问题描述
我有一段代码，可以使用WriteFile将扇区写入物理磁盘.在Win XP下可以正常工作，但在Windows 7下(未尝试Vista)不能正常工作.它返回错误代码ERROR_ACCESS_DENIED.阅读 http://msdn.microsoft.com/en-us/library/aa365747％28VS.85％29.aspx [ ^ ]我看到我应该卸下或锁定与物理设备关联的卷.我添加了枚举卷的代码，并使用FSCTL_LOCK_VOLUME调用了DeviceIoControl.现在，当我调用WriteFile时，即使我重复WriteFile调用，也会得到错误代码ERROR_DEVICE_CHANGED.
我该怎么办?
I have a piece of code that writes sectors to a physical disk using WriteFile. This works fine under Win XP, but not under Windows 7 (Not tried Vista). It returns an error code of ERROR_ACCESS_DENIED. Having read http://msdn.microsoft.com/en-us/library/aa365747%28VS.85%29.aspx[^] I can see that I should be dismounting or locking the volumes associated with the physical device. I added code to enumerate the volumes and called DeviceIoControl with FSCTL_LOCK_VOLUME. Now when I call WriteFile I get the error code ERROR_DEVICE_CHANGED, even if I repeat the WriteFile call.
What should I be doing?
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