Creates a new instance of the CallStateChangedEventArgs class.

Namespace:  Microsoft.Rtc.Collaboration
Assembly:  Microsoft.Rtc.Collaboration(in Microsoft.Rtc.Collaboration.dll)

Syntax

Visual Basic (Declaration) 
Public 
Sub 
New ( _
	
previousState 
As 

CallState, _
	
newState 
As 

CallState, _
	
transitionReason 
As 

CallStateTransitionReason, _
	
messageData 
As 

SipMessageData _
)
C# 
public 
CallStateChangedEventArgs(
	
CallState

previousState,
	
CallState

newState,
	

CallStateTransitionReason 
transitionReason,
	

SipMessageData 
messageData
)
Visual C++ 
public:
CallStateChangedEventArgs(
	
CallState

previousState, 
	
CallState

newState, 
	

CallStateTransitionReason 
transitionReason, 
	

SipMessageData^ 
messageData
)
JavaScript 

Microsoft.Rtc.Collaboration.CallStateChangedEventArgs = 
function(
previousState, 
newState, 
transitionReason, 
messageData);

Parameters

previousState
Type: Microsoft.Rtc.Collaboration . . :: . CallState
Previous state of the call.
newState
Type: Microsoft.Rtc.Collaboration . . :: . CallState
New state of the call.
transitionReason
Type: Microsoft.Rtc.Collaboration . . :: . CallStateTransitionReason
State transition reason.
messageData
Type: Microsoft.Rtc.Signaling . . :: . SipMessageData
SIP message received that caused the state transition.

See Also