问题描述
有多种方法可以检索HID设备的Windows设备名称，，其中RIDI_DEVICENAME是做到这一点的一种方法。
There are various ways to retrieve the Windows "Device Name" of a HID device, GetRawInputDeviceInfo with RIDI_DEVICENAME being one way to do it.
给出示例名称：
\？\HID＃VID_FEED& PID_DEAD＃6& 3559c8ea& 0& 0000＃{378de44c-56ef-11d1-bc8c-00a0c91405dd}
\?\HID#VID_FEED&PID_DEAD#6&3559c8ea&0&0000#{378de44c-56ef-11d1-bc8c-00a0c91405dd}
我想知道是否有任何文档说明此字符串的含义吗？
I'm wondering if there is any documentation whatsoever on what is what in this string?
\？\HID＃VID_AAAA& PID_BBBB＃ C& DDDDDD& E& FFFF＃{GUID}
\?\HID#VID_AAAA&PID_BBBB#C&DDDDDD&E&FFFF#{GUID}
因此，最明显的是最后的A（VID），B（PID）和GUID。我想知道的是C，D，E和F到底是什么？
So the obvious ones are A(VID), B(PID) and the GUID on the end. What I'm wondering is what EXACTLY are C, D, E and F?
即使您插入两个完全相同的HID设备，C和D似乎也是唯一的，这对我的问题来说非常有用，但是如果您这样做，我会感到更舒服我可以确切地知道如何根据每个操作系统确定它，或者至少它遵循某种已知格式。
It seems that C and D are unique even if you plug in two of the exact same HID devices which is great for my problem, but I'd feel more comfortable if I could know exactly how this is determined on a per OS basis, or at least that it follows some known format.
我一直在像疯子一样在谷歌上搜索这个数字出来，我错过了明显的东西吗？
I have been googling like a madman trying to figure this out, am I missing something obvious?
预先感谢
推荐答案
根据，该值表示唯一的设备实例ID：
According to a similar MSDN post, the value represents a unique device instance ID:
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