The SSID and IP address of Wi-Fi Direct

Question

The SSID and IP address of Wi-Fi Direct

zhangyp 1

Hi dear,

I am building a windows APP with wifi-direct connection, according to the code sample.
The code sample works fine while I still have some issues.

Is there any way to set/get the ssid of wifi direct(NOT legacy mode) ?
In the API of WiFiDirectAdvertisement/WiFiDirectAdvertisementPublisher, I cannot find any description about SSID or NAME. Working on my x86 based PC, the SSID seems same with the computer's name, so the SSID should be it? or any other API can do it?
After starting wifi-direct (local as the group owner), the physical adapter shall be working. Is there any way to get the MAC or IP address of this adapter? In the code sample, we can get that only when handling connection from other device via WiFiDirectDevice class. According to this issue, we cannot choose a specfic adapter, so I guess the workaround is not in the wifi-direct namespace?
For some class, such as WiFiDirectAdvertisementPublisher, there is still a IWiFiDirectAdvertisementPublisher in the same namespace. So what's the difference between them? Might be just in difference coding language winrt or wrl?

1 answer

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Answer 1

Junjie Zhu - MSFT 21,646

Hello @zhangyp ,
Welcome to Microsoft Q&A!

Is there any way to set/get the ssid of wifi direct(NOT legacy mode) ?

In non-legacy mode, there is no UWP API you want.

Is there any way to get the MAC or IP address of this adapter?

As Roy said in that issue, in UWP there is currently no such API provided.

what's the difference between WiFiDirectAdvertisementPublisher and IWiFiDirectAdvertisementPublisher ?

In Windows.Devices.WiFiDirect Namespace, I don't see IWiFiDirectAdvertisementPublisher, where did you find it?

Thank you.
Junjie

zhangyp 1 Reputation point

2022-11-02T07:08:31.997+00:00

Dear JunjieZhu,
Thanks for your reply.
The class IWiFiDirectAdvertisementPublisher is not shown in the msdn doc, but it can be used. In windows.devices.wifidirect.h of windows SDK, you can find the following code,
I am concerning about IWiFiDirectAdvertisementPublisher and IWiFiDirectAdvertisementPublisher. They have the same function, but different interface, such as WRL, C++/CX, C++/WINRT?
Junjie Zhu - MSFT 21,646 Reputation points

2022-11-02T08:05:28.943+00:00

IWiFiDirectAdvertisementPublisher is an interface, it is recommended that you use WiFiDirectAdvertisementPublisher.
zhangyp 1 Reputation point

2022-11-02T08:31:19.32+00:00

Thanks, very clear.

One more thought about issue 1: if there is no API to get the ssid, how can other wifi-direct devices confirm whether they can connecting to the current advertiser?
Junjie Zhu - MSFT 21,646 Reputation points

2022-11-02T09:31:35.67+00:00

In Windows-universal-samples/Samples/WiFiDirect

A device can advertise its presence so that other Wi-Fi Direct devices can discover and connect to it.
The legacy mode supports specifying a SSID and a passphrase.

You indicate you want get the ssdi in NOT legacy mode, so the wifi-direct is connected via advertisement.
If you need get the ssid, you can use WiFiDirectLegacySettings Class in legacy mode.
zhangyp 1 Reputation point

2022-11-02T09:51:55.233+00:00

Dear,
Some misunderstanding.
I was saying, in NOT legacy mode, there shall be some method to get the ssid(service name). Just in case at some moment we have serveral device/advertiser around us, the connector do not know which is the target one. And the ssid from WiFiDirectLegacySettings shall not give the ssid of advertiser.
Junjie Zhu - MSFT 21,646 Reputation points

2022-11-15T09:25:23.747+00:00

Because currently what you want cannot be achieved in not-legacy-mode.
I'd suggest you submit a feature request about this feature in the Feedback Hub.
You could find the Feedback Hub in the Start Menu.
Please select Developer Platform->API Feedback as the category when you submit your request.
The related team will check the request.
zhangyp 1 Reputation point

2022-11-22T03:24:08.893+00:00

Dear,
Thanks for your reply.
It have been several days since I submitted the feedback request. However there is not a single contact/discuss with me.
Could you help me raise that request to the support team?
Junjie Zhu - MSFT 21,646 Reputation points

2022-11-22T06:29:35.21+00:00

Hi there,

Feedback Hub is a place to submit feature requests or issues, you may not get a reply right away, but the team will check it. If you want to get a technical support for this question, I suggest that you might need to open a support ticket for this. Please contact our paid support at MS Support. You will get 1:1 support on that. Select Developer Tools -> Windows UWP Development -> Windows 10 Universal App Dev -> Devices and Sensors Development-> Other in the support page and you could contact the team. Please kindly note that your support ticket will be free if it is Microsoft's issue.

Thank you,
Junjie

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The SSID and IP address of Wi-Fi Direct

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