Windows HID设备名称格式 [英] Windows HID Device Name Format

问题描述

有多种方法可以检索HID设备的Windows设备名称， GetRawInputDeviceInfo ，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

根据类似的MSDN帖子，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:

设备实例ID对于设备插入的物理
位置而言是唯一且恒定的，但它也是不透明的，因此不应解析
。这意味着它可以用于字符串比较，但是
不能用于解释。

the device instance ID is unique and constant for the physical location the device is plugged into, but it is also opaque and should not be parsed. that means it can be used for string comparison, but not for interpretation.

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