Re: [PATCH v7 0/4] MR359: mmdevapi: copy ContainerID property from audio driver if available

[Jinoh Kang (＠iamahuman)]

Jinoh Kang (@iamahuman) commented about dlls/mmdevapi/devenum.c:
>          break;
>  }
>  RegCloseKey(regkey);
> -
> - /* Special case ContainerID as CLSID */
> - if(pv->vt == VT_BLOB && pv->blob.pBlobData && pv->blob.cbSize == 24 && pv->blob.pBlobData[0] == VT_CLSID && IsEqualPropertyKey(*key, DEVPKEY_Device_ContainerId)) {

Avoid hard-coding constants wherever possible.

```suggestion:-0+0
    if(pv->vt == VT_BLOB && pv->blob.pBlobData && pv->blob.cbSize == sizeof(VARIANT) && pv->blob.pBlobData[0] == VT_CLSID && IsEqualPropertyKey(*key, DEVPKEY_Device_ContainerId)) {
```

(Assuming this is VARIANT; correct me if this is not the case.)