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VB中调用MSN 6.2 API函数

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  了解这方面内容的起因是早上有位朋友让我看一段关于MSN开发程序,现在无法运行,我打开工程发现是针对4.7编写的,而他的计算机安装的6,2,因为我也用6.2所以我在VB中查看了一下,发现是缺少Messenger Type Library。但是多了Messenger API Type Library,可能是做为Messenger Type Library的替代,但是发现它的功能不如以前的Messenger Type Library 全面,起码我现在就发现它不能修改本地的MyFriendlyName,不明白为什么把它弄成只读的,MyStatus是可写。

  下面简单用VB距离说明怎么调用它:

  首先当然是引用对象Messenger API Type Library了。

  然后声明一个对象MessengerAPI.Messenger:

Private WithEvents oMSN As MessengerAPI.Messenger

  我们需要的东西都在这里边,简单介绍几个:

  MyContacts:IMessengerContacts 对象
  MyFriendlyName: 当前的昵称
  MyGroups: IMessengerGroupss对象
  MyPhoneNumber:返回电话号码
  MyProperty:现在没有使用
  MyServiceId :返回Service id应该是{9b017612-c9f1-11d2-8d9f-0000f875c541}]
  MyServiceName:返回Service name应该是 .NET Messenger Service
  MySigninName:返回当前的签名,eMail地址
  MyStatus:返回当前状态,MISTATUS枚举值

  其实本地属性和通过PrimaryService得到的一样

  做几个简单的演示:

  首先是登陆演示,使用MessengerAPI.Messenger的 SignIn 或者AutoSignin方法:

Public Sub SignIn(ByVal bAuto As Boolean, Optional ByVal sSignInName As String,   Optional ByVal sPassword As String)
 On Error GoTo ErrorHandle
 If bAuto = True Then
  oMSN.AutoSignin
 Else
  ManualSignIn:
  oMSN.SignIn 0, sSignInName, sPassword
 End If

 Exit Sub
ErrorHandle:
 Dim MConstants As MSGRConstants
 MConstants = err.Number
 If MConstants = MSGR_E_FAIL Then
  GoTo ManualSignIn
 ElseIf MConstants = MSGR_E_ALREADY_LOGGED_ON Then
  '已经登陆
 End If
End Sub

  获取全部用户列表:

  通过Messenger的MyContacts对象(它是只读的)

  它其实就是一个IMessengerContacts对象,而IMessengerContacts类又是IMessengerContact类的一个集合,在IMessengerContact中保存联系人信息。

  因此可以这样遍历联系人。

Dim oContacts As IMessengerContacts
Dim oContact As IMessengerContact
Dim iCount As Integer
Dim i As Long
Set oContacts = oMSN.MyContacts
iCount = oContacts.Count
For i = 0 To iCount - 1
 Set oContact = MsgrContacts.Item
 List1.AddItem MsgrContact.FriendlyName & vbTab & "(" & getStatusDesc(MsgrContact.Status) & ")"
Next

  getStatusDesc函数用来返回状态文本描述:

Private Function getStatusDesc(eStatus As MISTATUS) As String
 Select Case eStatus
  Case MISTATUS_AWAY
   getStatusDesc = "走开了"
  Case MISTATUS_BE_RIGHT_BACK
   getStatusDesc = "马上回来"
  Case MISTATUS_BUSY
   getStatusDesc = "在忙碌"
  Case MISTATUS_IDLE
   getStatusDesc = "在发呆"
  Case MISTATUS_INVISIBLE
   getStatusDesc = "隐身"
  Case MISTATUS_LOCAL_CONNECTING_TO_SERVER
   getStatusDesc = "正在链接服务器"
  Case MISTATUS_LOCAL_DISCONNECTING_FROM_SERVER
   getStatusDesc = "从服务器断开"
  Case MISTATUS_LOCAL_FINDING_SERVER
   getStatusDesc = "正在搜索服务器"
  Case MISTATUS_LOCAL_SYNCHRONIZING_WITH_SERVER
   getStatusDesc = "正在和服务器同步"
  Case MISTATUS_OFFLINE
   getStatusDesc = "离线"
  Case MISTATUS_ON_THE_PHONE
   getStatusDesc = "在接电话"
  Case MISTATUS_ONLINE
   getStatusDesc = "在线"
  Case MISTATUS_OUT_TO_LUNCH
   getStatusDesc = "外出就餐"
  Case MISTATUS_UNKNOWN
   getStatusDesc = "未知"
 End Select
End Function

  获取组列表:

  方法同获取联系人,只是换了一下对象.

Dim oGroups As IMessengerGroups
Dim oGroup As IMessengerGroup
Set oGroups = oMSN.MyGroups
For Each oGroup In oGroups
 List1.AddItem oGroup.Name
Next

  下面就是将组和用户关联起来:

  明白上面的方法,这个很容易实现,IMessengerGroup类的对象中含有IMessengerContact类对象的集合。

Dim oGroups As IMessengerGroups
Dim oGroup As IMessengerGroup
Dim oContacts As IMessengerContacts
Dim oContact As IMessengerContact
Set oGroups = oMSN.MyGroups
For Each oGroup In oGroups
 Set oContacts = oGroup.Contacts
 For Each oContact In oContacts
  List1.AddItem oGroup.Name & " " & oContact.SigninName
 Next
Next

  在介绍一下服务:

  也是用样道理:

Dim oServices As IMessengerServices
Dim oService As IMessengerService
Set oServices = oMSN.Services
Set oService = oServices.PrimaryService
MsgBox oService.MyFriendlyName & getStatusDesc(oService.MyStatus) & oService.MySigninName & oService.ServiceId & oService.ServiceName

  我现在怎么觉得PrimaryService的意义不大,IMessengerServices中就一个PrimaryService可用,还是只读的。

  当然各个对象可能还有一些相应的方法就不多介绍,我介绍的这些通过对象浏览器就可以看明白,其中还有对象或成员我现在还没学会使用,现在只是大致了解一下,我希望看到这篇文章的人也有了一点初步了解。

 

 

 
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