how to get some message before transfer a file

Question

hi, i use some code to get something when others participants sending message

it's code:

var imModality = (Microsoft.Lync.Model.Conversation.InstantMessageModality)t.Modalities[ModalityTypes.InstantMessage];
                imModality.InstantMessageReceived += new EventHandler<MessageSentEventArgs>(imModality_InstantMessageReceived);

in imModality_InstantMessageReceived,i can get something message ,such as ParticipantProperty.Name and do i want something.

but when other participants  transfer a file ,imModality_InstantMessageReceived No effect，how to get some message before transfer a file ，or how can i Monitor before transfer a file,so that i can do something 

some body have any idea?

Answer 1

You could receive the message on other event handler related to the modality

Answer 2

Lync 2010 SDK supports sending File Transfer through the APIs but not accepting it through the APIs. Receiving client has to be a Lync UI user and accept it in the CW.

Here is the code for sending file transfer

            Automation _Automation = LyncClient.GetAutomation();

            // Create a dictionary object to contain AutomationModalitySettings data pairs.
            Dictionary<AutomationModalitySettings, object> _ModalitySettings = new Dictionary<AutomationModalitySettings, object>();

            AutomationModalities _ChosenMode = AutomationModalities.FileTransfer | AutomationModalities.InstantMessage;

            // Store the file path as an object using the generic List class.
            string myFileTransferPath = string.Empty;
            // Edit this to provide a valid file path.
            myFileTransferPath = System.IO.Path.GetFullPath(textBoxFilePath.Text.Trim());

            // Create a generic List object to contain a contact URI.
            String[] invitees = { textBoxTo.Text.Trim() };
            
            // Adds text to toast and local user IMWindow text entry control.
            _ModalitySettings.Add(AutomationModalitySettings.FirstInstantMessage, "Sending a file.");
            _ModalitySettings.Add(AutomationModalitySettings.SendFirstInstantMessageImmediately, true);

            // Add file transfer conversation context type
            _ModalitySettings.Add(AutomationModalitySettings.FilePathToTransfer, myFileTransferPath);

            // Start the conversation.
            IAsyncResult ar =  _Automation.BeginStartConversation(
                _ChosenMode
                , invitees
                , _ModalitySettings
                , null
                , null);

            // Block UI thread until conversation is started.
            _Automation.EndStartConversation(ar);

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Lync SDK Team - This posting is provided "AS IS" with no warranties, and confers no rights.

Answer 3

Hello,

so there is no way i could catch the event, that somebody is sending me a file? I do not want to receive it over API, i just want a notification that someone is sending me a file.

With InstantMessageReceived event i get the notification that somebody is sending me a text, and then i make my application blinking to notify the user.
The same i would like to do, when somebody is sending me a file to transfer. Is this possible?

Thanks for all your help!

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Best regards, Peter Korosec