How to connect To Lync server using UCMA 4.0

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I have a project in which i have to create simple web form, in that there will be a button, When user will press button, the application should contact Lync server to set up a web conference (an online meeting).

Also, The application should present the result to the user, and preferable display a link which the user can click on to participate in the online meeting using Lync

I read all details, but still don't know from where to start, I read about UCMA 4.0 sdk, installed it, added Microsoft.Rtc.Collaboration dll, but until i don't know which classes are used and which class method to call, to connect to server i cant do anything. Anyone can help through this, with code or any article explaining how to use this SDK.

I found this useful, because reading from this, at least i am able to understand and write some code. but issue is not resolved yet

C#

private void button1_Click(object sender, EventArgs e)
{
    ConferenceScheduleInformation CSI = new ConferenceScheduleInformation();
     
    CSI.AccessLevel = ConferenceAccessLevel.Everyone;
    CSI.AutomaticLeaderAssignment = AutomaticLeaderAssignment.Everyone;
    CSI.ConferenceId = "Whatever";
    CSI.Description = "Test Conference";
    CSI.Subject = "Testing_Subject";
    CSI.Mcus.Add(new ConferenceMcuInformation(McuType.AudioVideo));
        
    try
    {
        _localendpoint.ConferenceServices.BeginScheduleConference(CSI,
            ar =>
            {
                try
                {
                    Conference newConference = _localendpoint.ConferenceServices.EndScheduleConference(ar);
                    //DoSomethingWithTheConference(newConference);
                }
                catch (RealTimeException ex)
                {
                    Console.WriteLine(ex);
                }
            },
            null);
    }
    catch (InvalidOperationException ex)
    {
        Console.WriteLine(ex);
    }
}

I Am getting Null reference exception here
Conference newConference
, How to solve this, What mistake i am making??

Posted 3-Sep-14 1:16am

Member 10801309

Updated 7-Sep-14 0:26am

George Jonsson

v2

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Comments

kbrandwijk 3-Sep-14 9:35am

Have you looked at the sample application provided by Microsoft here: http://msdn.microsoft.com/en-us/library/office/dn495337(v=office.15).aspx

Member 10801309 4-Sep-14 8:24am

Hello, I found this useful, because reading from this, at least i am able to understand and write some code. but issue is not resolved yet

private void button1_Click(object sender, EventArgs e)
{

ConferenceScheduleInformation CSI = new ConferenceScheduleInformation();

CSI.AccessLevel = ConferenceAccessLevel.Everyone;
CSI.AutomaticLeaderAssignment = AutomaticLeaderAssignment.Everyone;
CSI.ConferenceId = "Whatever";
CSI.Description = "Test Conference";
CSI.Subject = "Testing_Subject";
CSI.Mcus.Add(new ConferenceMcuInformation(McuType.AudioVideo));

try
{
_localendpoint.ConferenceServices.BeginScheduleConference(CSI,
ar =>
{
try
{
Conference newConference = _localendpoint.ConferenceServices.EndScheduleConference(ar);
//DoSomethingWithTheConference(newConference);
}
catch (RealTimeException ex)
{
Console.WriteLine(ex);
}
},
null);
}
catch (InvalidOperationException ex)
{
Console.WriteLine(ex);
}

}

I Am getting Null reference exception here <br>Conference newConference </br>, How to solve this, What mistake i am making??

1 solution

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George Jonsson · Answer 1 · 2014-09-07T00:49:00

Assuming you that you have already looked at this reference link
Unified Communications Managed API 4.0 SDK documentation[^]
you need some working example, right?

Appearently there is lots of samples in the SDK itself, you just have to select one that looks similar to what you want to do.
QuickStart sample applications[^]
For example:
BasicConferencing (QuickStart)[^]

More examples for Windows 8:
Lync samples: learn through code[^]

For the specific error you get, you should check the variable _localendpoint.ConferenceServices in the debugger.