SignalingSession.BeginSendMessage Method (MessageType, ContentType, Byte , AsyncCallback, Object)
Sends a message. The session should be in the Connected state.
Namespace: Microsoft.Rtc.Signaling
Assembly: Microsoft.Rtc.Collaboration (in Microsoft.Rtc.Collaboration.dll)
Syntax
'Declaration
Public Function BeginSendMessage ( _
messageType As MessageType, _
contentType As ContentType, _
body As Byte(), _
userCallback As AsyncCallback, _
state As Object _
) As IAsyncResult
'Usage
Dim instance As SignalingSession
Dim messageType As MessageType
Dim contentType As ContentType
Dim body As Byte()
Dim userCallback As AsyncCallback
Dim state As Object
Dim returnValue As IAsyncResult
returnValue = instance.BeginSendMessage(messageType, _
contentType, body, userCallback, _
state)
public IAsyncResult BeginSendMessage(
MessageType messageType,
ContentType contentType,
byte[] body,
AsyncCallback userCallback,
Object state
)
Parameters
- messageType
Type: Microsoft.Rtc.Signaling.MessageType
The type of the message body (message or info).
- contentType
Type: System.Net.Mime.ContentType
The content type describing the body. Can be null if body is null and if null text/plain, UTF-8 is assumed.
- body
Type: []
The body for the data.
- userCallback
Type: System.AsyncCallback
The method to be called when the asynchronous operation is completed.
- state
Type: System.Object
A user-provided object that distinguishes this particular asynchronous operation from other asynchronous operations.
Return Value
Type: System.IAsyncResult
An IAsyncResult that references the asynchronous operation.
Exceptions
| Exception | Condition |
|---|---|
| InvalidOperationException | Thrown when the session is in an invalid state to send the message. |
| ArgumentException | Thrown when invalid arguments are passed. |
| ArgumentNullException | Thrown when arguments are null. |