目前，我们有一个网站，它依赖于 Microsoft TAPI 接口从 .NET 网站内拨打电话。它使用 VBScript 和标签，并绑定到母版页。我们正在寻找的是一个包含所有这些代码的服务器控件，并且只有在它包含在网页上时才会运行。
旧页面执行以下操作：
<object classid="clsid:21D6D48E-A88B-11D0-83DD-00AA003CCABD" id="TAPIOBJ"></object>
<object classid="clsid:E9225296-C759-11d1-A02B-00C04FB6809F" id="MAPPER"></object>
在这些代码行之后是包含用于初始化 Microsoft TAPI 3.0 库的 VBScript 和一些要拨号的函数的标记。拨号器控件创建对其中一个函数的调用以拨入 onclick 事件。
本质上，我们希望创建相同类型的控件，而无需将标签直接嵌入到页面的 HTML 中。我们也不希望在其中使用 VBScript。理想情况下，我们需要一个与 TAPI 3.0 API 一起工作并获得对客户端电话的访问权限的服务器控件。这可能吗？由于我们谈论的是“服务器”控件，因此我持怀疑态度。我可以很容易地在项目中创建一个用户控件，但是我们希望将它放在一个控件框架中以便在其他地方使用而不是复制它。
我一直在看这篇关于如何创建用于注入客户端 ActiveX 控件的服务器控件的文章，但这是否正确？
更新：这是 VBScript：
这就是标签中的内容：
<script type="text/vbscript" LANGUAGE="VbScript">
'Constants section
'These constants are copied from tapi3if.idl
Const TAPIMEDIATYPE_AUDIO = &H08&
Const TAPIMEDIATYPE_VIDEO = &H8000&
Const S_MEDIA_AUDIOVIDEO = &H8008&
Const TD_CAPTURE = 0
Const TD_RENDER = 1
Const QSL_NEEDED = 1
Const AS_INSERVICE = 0
Const DC_NORMAL = 0
Const TE_CALLSTATE = 8
Const TE_CALLNOTIFICATION = 4
Const CS_DISCONNECTED = 3
Const CS_IDLE = 0
Const CS_OFFERING = 4
Const CS_CONNECTED = 2
Const CNE_OWNER = 0
Const CIS_CALLERIDNAME = 0
Const CIS_CALLERIDNUMBER = 1
'Interface IDs for casting
'Note: you can find the following IID-s in tapi3.h, tapi3if.idl or rend.idl
Const IID_String_ITMediaSupport = "{B1EFC384-9355-11D0-835C-00AA003CCABD}"
Const IID_String_ITTerminalSupport="{B1EFC385-9355-11D0-835C-00AA003CCABD}"
Const IID_String_ITBasicCallControl = "{B1EFC389-9355-11D0-835C-00AA003CCABD}"
'Const IID_String_ITCallInfo = "{B1EFC390-9355-11d0-835C-00AA003CCABD}"
'New interface
Const IID_String_ITCallInfo = "{350F85D1-1227-11D3-83D4-00C04FB6809F}"
Const IID_String_ITStreamControl= "{EE3BD604-3868-11D2-A045-00C04FB6809F}"
Const IID_String_ITDirectoryObjectConference= "{F1029E5D-CB5B-11D0-8D59-00C04FD91AC0}"
Const IID_String_ITCallStateEvent = "{62F47097-95C9-11d0-835D-00AA003CCABD}"
Const IID_String_ITCallNotificationEvent = "{895801DF-3DD6-11d1-8F30-00C04FB6809F}"
' IID of IVideoWindow
' Note: you can find this IID defined in control.h (from your sdk\inc directory),
' which contains the interface to type library QuartzTypeLib for quartz.dll;
' (search for the interface IVideoWindow)
Const IID_String_IVideoWindow = "{56A868B4-0AD4-11CE-B03A-0020AF0BA770}"
' The following CLSID is defined in tapi3.h
'(and it's used for creating a terminal of class "video window terminal")
Const CLSID_String_VideoWindowTerm = "{F7438990-D6EB-11d0-82A6-00AA00B5CA1B}"
'****************************************************************************
'Global variable section
'****************************************************************************
Dim CallStatus
Dim pICallState
pICallState = 0
'Set on True when we are unable to complete the connecting phase, to skip rest of processing
DIM sUnableToComplete
DIM sbNeedToExit
sUnableToComplete = False
sbNeedToExit = False
' If we want to receive incoming calls, we have to register on the corresponding addresses.
'We don't really use the values returned by registration (they are supposed to be used
'for unregistration), because Unregistration is performed automatically when we shutdown the TAPI object
'The variable pRegisteredCallNotification is an array that contains cookies returned by RegisterCallNotifications;
'these would normally be used to call UnregisterNotifications.
'The variable pRegisteredName holds correspondent AddressName
DIM pRegisteredCallNotification(50)
DIM pRegisteredName(50)
DIM iQtaRegistered
DIM callFrom
iQtaRegistered = 0
'Set by radio button "Select Address Type"
DIM sCurrentAddressType
'sCurrentAddressType = -1
sCurrentAddressType = 1
' This variable will hold a reference to the currently established call
DIM spITCall
spITCall = Empty
DIm pVideoWindow1
DIm pVideoWindow2
'Simplest error processing
Sub CheckError(strMsg)
if not Err.number = 0 Then
MsgBox strMsg & ":" & Err.number & ";"&Err.description
sbNeedToExit = True
Err.Clear
End If
End Sub
Function IsComponentInstalled(ProgId)
Dim tmpObject
On Error Resume Next
Set tmpObject = Server.CreateObject(ProgId)
If Err.Number = 0 Then
IsComponentInstalled = True
Else
IsComponentInstalled = False
End If
Set tmpObject = Nothing
End Function
</script>
在标签之后的结束正文标签下方是：
<script type="text/vbscript" LANGUAGE="vbscript">
' Be sure that you call TAPIOBJ.Initialize before window_onload, otherwise you'll
' never receive events from tapi...
On Error Resume Next
call TAPIOBJ.Initialize
sUnableToComplete = False
TAPIOBJ.EventFilter = &H1FFFF&
if Not Err.number = 0 Then
MsgBox "TAPI software has not been installed on your workstation.",0,"Init"
sUnableToComplete = True
End If
For Each pITAddress in TAPIOBJ.Addresses
if left(pITAddress.AddressName,4) <> "Line" and left(pITAddress.AddressName,29) <> "Shoreline Multi-Line Monitor:" _
and pITAddress.MediaTypes = 8 then
callFrom = pITAddress.AddressName
end if
next
'This section shows how to override Application Priority:
'after the execution of the following lines, our app will always receive incoming calls
'even if there are other running tapi apps that had registered for receiving calls before our app.
call TAPIOBJ.SetApplicationPriority("IEXPLORE.EXE",TAPIMEDIATYPE_AUDIO,TRUE)
call TAPIOBJ.SetApplicationPriority("IEXPLORE.EXE",TAPIMEDIATYPE_VIDEO,TRUE)
' Check parameters of a call before connecting it
Sub PressConnect(pNumber,Status)
On Error Resume Next
'MsgBox (pNumber & "," & Status)
DIM iAddressType
DIM pConnectTo
DIM addressFrom
DIM selStr
'If not IsEmpty(spITCall) Then
' MsgBox "You are currently in call. Disconnect first",0,"connect"
'End If
pConnectTo = pNumber
set CallStatus=Status
addressFrom = callFrom
If addressFrom = "" Then
callStatus.innerHTML = "Feature Unavailable"
MsgBox "The TAPI Feature has not been setup on your phone line.",0,"COnnect"
else
sUnableToComplete = False
callStatus.innerHTML = "Connecting to " & pConnectTo & " ...."
'Create new internal call representation
For Each pITAddress in TAPIOBJ.Addresses
if pITAddress.AddressName = addressFrom Then
'Obtain ITMediaSupport
Set pITAddress_Connect = pITAddress
Exit For
End If
Next
Set pITAddress = Nothing
'Create a Call
DIM MediaTypes
MediaTypes = TAPIMEDIATYPE_AUDIO
Set pCall = pITAddress_Connect.CreateCall(pConnectTo,1,MediaTypes)
Set spITCall = pCall
if sUnableToComplete Then
Call DisconnectCall(1)
callStatus.innerHTML = "Call to "& pConnectTo & " failed."
End If
Call pCall.Connect(false)
' Check for error "invalid address" (see in tapi3err.h TAPI_E_INVALADDRESS=(HRESULT)0x8004000C)
if Err.Number = &H8004000C Then
Err.Clear
Call DisconnectCall(1)
callStatus.innerHTML = "Call to "& pConnectTo & " failed: Address is invalid"
Set pCall = Nothing
Else
if not Err.Number = 0 Then
Err.Clear
Call DisconnectCall(1)
callStatus.innerHTML = "Call to "& pConnectTo & " failed: error " & Hex(Err.number)
Set pCall = Nothing
Else
Set spITCall = pCall
End if
End If
end if
Set pCall = Nothing
end sub
' Disconnect current call
Sub HangUp(callDisc)
'On Error resume Next
if not IsEmpty(spITCall) Then
if not callDisc = 8 and not callDisc = 0 Then
' We need some kind of message pump here. The following call to MsgBox does exactly this:
'MsgBox "A call is disconnected",0,"Disconnect"
End If
Set pVideoWindow1 = Nothing
Set pVideoWindow2 = Nothing
' ConnANN.innerHTML = "Disconnected"
if callDisc=0 Then
spITCall.Disconnect(DC_NORMAL)
End If
Set spITCall = Nothing
spITCall = Empty
callStatus.innerHTML = "Disconnected"
'btnDisconnect.disabled = true
'source.visible = false
End If
End Sub
'*****************************************************************************
' Tapi events processing:
' - call state events ("connected", "disconnected")
' - and call notification events (these calls will be in "offering" state)
Sub TAPIOBJ_Event(event_type, tapi_event)
'On Error Resume Next
'Check For disconnected call
if event_type = TE_CALLSTATE Then
DIM pITCallStateEvent
Set pITCallStateEvent = MAPPER.QueryDispatchInterface(_
IID_String_ITCallStateEvent,tapi_event)
iCallState = pITCallStateEvent.State
if iCallState= CS_DISCONNECTED or iCallState= CS_IDLE Then
cause = pITCallStateEvent.Cause
'pICallState=iCallState
strinnerHTML = ""
Select Case cause
Case 1 ' CEC_DISCONNECT_NORMAL - Normal disconnect
strinnerHTML = "Disconnected"
Case 2 ' CEC_DISCONNECT_BUSY
strinnerHTML = "Your Party is busy.Try Later."
Case 3 ' CEC_DISCONNECT_BADADDRESS
strinnerHTML = "Address is invalid"
case 4 ' CEC_DISCONNECT_NOANSWER
strinnerHTML = "No answer from your party."
case 0 'CEC_NONE
strinnerHTML = "No answer from your party."
Case Else
strinnerHTML = "Your call is cancelled, rejected or failed"
End Select
'Call DisconnectCall(1)
'btnDisconnect.disabled = true
End If 'Call is disconnected
if iCallState = CS_CONNECTED Then 'Call is connected
callStatus.innerHTML = "Call is connected."
'btnDisconnect.disabled = False
End If 'Call is connected
End If ' event: call state
'Check only for incoming calls
if event_type = TE_CALLNOTIFICATION Then ' We have an incoming call (an "offering" call)
DIM pITCallNotificationEvent
Set pITCallNotificationEvent = MAPPER.QueryDispatchInterface(_
IID_String_ITCallNotificationEvent,tapi_event)
Call CheckError("TAPIOBJ_Event:query for pITDirectoryObjectUser")
CallOwnership = pITCallNotificationEvent.Event
DIM pITCallInfo
Set pITCallInfo = pITCallNotificationEvent.Call
Call CheckError("TAPIOBJ_Event:get pITCallInfo")
if not blnShowOnlyOnce and pITCallInfo.CallState = CS_OFFERING and not ( CallOwnership = CNE_OWNER) Then
MsgBox "Unable to accept incoming calls: is other instance of this app running?",0,"Info"
blnShowOnlyOnce = True
Exit Sub
End IF
if CallOwnership = CNE_OWNER Then 'We are the owner!
if not IsEmpty(spITCall) Then
MsgBox "Already in call, disconnect first",0,"Incoming Call"
Exit Sub
End if
if pITCallInfo.CallState = CS_OFFERING Then 'Offering
'-- CIS_CALLERIDNAME Wasn't working so I switched to NUMBER
sCalleeName = pITCallInfo.CallInfoString(CIS_CALLERIDNAME)
if not Err.number = 0 then ' Caller ID name is not supported
sCalleeName = "Unknown Name"
Err.Clear
End if
sCalleeNumber = pITCallInfo.CallInfoString(CIS_CALLERIDNUMBER)
if not Err.number = 0 then ' Caller ID name is not supported
sCalleeNumber = "Unknown Number"
Err.Clear
End if
DIM pITCallOffer
Set pITCallOffer = MAPPER.QueryDispatchInterface( _
IID_String_ITBasicCallControl, pITCallInfo)
Call CheckError("TAPIOBJ_Event:query for pITCall")
response = MsgBox("A call from '" & sCalleeNumber & " " & sCalleeName & "' has arrived. Do you want to accept it?",4,"Incoming call")
if not response = 7 Then 'the did not press "NO", so he pressed "YES"
Call AcceptIncomingCall(pITCallOffer, pITCallInfo)
End If
End If 'Call is offering
End If 'We are owner
End If 'Call Notification has arrived
End Sub
</script>
是否可以使用 ITAPI3 托管库来摆脱这种情况并在代码隐藏中执行此操作？