check Yahoo Messenger user online status?

[Jassim Rahma]

how can I check if a user on Yahoo Messenger is online or offline in order to show a notification to the user?

[amaankhan]

www.imvisible.info...this is website from which u can see and many software are also there.

[BabyMouse]

how can I find source code in C# 2.0 or ASP.NET?

[Do Hong Ngoc]

There are some samples out there: http://www.revenmerchantservices.com/category/HttpWebRequest.aspx[^] http://www.revenmerchantservices.com/post/2009/05/25/HttpWebRequest.aspx[^]

[BabyMouse]

Thank a lot! I saw two samples, but they used Yahoo API. However, it doesn't check "invisible" YahooID.

[satalaj]

BabyMouse wrote:

but they used Yahoo API. However, it doesn't check "invisible" YahooID.

Hi, Those links dosen't use any yahoo API. to use yahoo API with your application, you can get more info here http://developer.yahoo.com/[^] Thanks, Satalaj

[BabyMouse]

I may be mistaken between Yahoo API and OPI, but host opi.yahoo.com not check "invisible" YahooID.