如何在MFC中获取进程（PID为4）使用的HID设备句柄

问题描述

我使用CreateFile来获取HID设备句柄，它给我一个错误代码32.我发现某些进程已经独占地打开它。所以我使用ProcessExplorer找到进程并发现它的PID是4.



有没有办法获得该进程占用的HID设备句柄？ br />
这里我如何使用CreateFile

I use CreateFile to get the HID device handle and it give me a error code 32. I figure out that some process has opend it exclusively. So I use ProcessExplorer to find the process and find out it's PID is 4.

Is there any way to get the HID device handle which is occupied by that process?
Here how I use CreateFile

hOut = CreateFile(devPath, 
                  GENERIC_READ | GENERIC_WRITE, 
                  FILE_SHARE_READ | FILE_SHARE_WRITE, 
                  NULL, 
                  OPEN_EXISTING, 
                  FILE_ATTRIBUTE_NORMAL, 
                  NULL);

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