[Wlanapi] WLAN_NOTIFICATION_MSM NotificationCode 59

Question

Hi,

I'm working on a small Wifi tool using wlanapi in vs2019.
I'm outputting the wlan notifications to the output window and constantly witnessing an unknown notification code numbered 59, which is not documented anywhere; the WLAN_NOTIFICATION_MSM enum has only 17 code enumerations.

I cannot find better explanation for this (and maybe even more?) code anywhere. Can someone help to find this out?

The logged notifications looking like:
ACM ScanComplete
ACM ScanListRefresh
MSM 59
MSM SignalQualityChange
MSM SignalQualityChange
MSM 59
MSM SignalQualityChange
MSM 59

Thank you in advance!

Answer 1

Hi，
Thanks for posting here. In Windows，I just found this article which you may have read:
https://learn.microsoft.com/en-us/windows/win32/api/wlanapi/ne-wlanapi-wlan_notification_msm-r1

If this disappointed you, I suggest to post this question here:
http://www.cplusplus.com/forum/

This forum may help you better.
Please note: The given technical support contact information belongs to a third party and may vary without notice. Microsoft does not guarantee the information accuracy.
Best regards
Cherry

Answer 2

@Tamas Balogh Until something better comes along, you can do what I did. Edit your 'wlanapi.h' file and add the line

wlan_notification_msm_this_is_the_mysterious_undocumented_notification_code_59 = 59,

immediately before the wlan_notification_msm_end line. Be aware that this will change the value of wlan_notification_msm_end, if your code happens to be using that value.

Answer 3

We should ignore this code since it is a private OS notification code.
See https://stackoverflow.com/a/64455769/1828989 for the details.