VB.Net by API/System.Messaging/MessageQueue — различия между версиями

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м (1 версия)
 
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Текущая версия на 12:50, 26 мая 2010

MessageQueue.Create

   
Imports System
Imports System.Messaging
Public Class MainClass
    
    Shared Sub Main()
      Dim Greeting As String = "Hello World!"
      Dim mQ As MessageQueue
      If MessageQueue.Exists(".\Private$\HelloWorld") Then
         mQ = New MessageQueue(".\Private$\HelloWorld")
      Else
         mQ = MessageQueue.Create(".\Private$\HelloWorld")
      End If
      mQ.Send(Greeting, "HelloWorld")
      Console.WriteLine("Greeting Message Sent to Private Queue.")
    End Sub
End Class


MessageQueue.Exists

   
Imports System
Imports System.IO
Imports System.Messaging
Public Class MainClass
    
    Shared Sub Main()
        Dim mQ As MessageQueue
        Dim mes As Message
        Dim X As String
        Dim br As BinaryReader
        If MessageQueue.Exists(".\Private$\HelloWorld") Then
            mQ = New MessageQueue(".\Private$\HelloWorld")
        Else
            Console.WriteLine("Queue doesn"t exist.")
            Return
        End If
        Try
            mes = mQ.Receive(New TimeSpan(0, 0, 3))
            br = New BinaryReader(mes.BodyStream)
            X = New String(br.ReadChars(CType(mes.BodyStream.Length, Integer)))
            Console.WriteLine("Received Message: {0}", X)
        Catch
            Console.WriteLine("No Message to Receive.")
        End Try
    End Sub
End Class


MessageQueue.Receive

   
Imports System
Imports System.IO
Imports System.Messaging
Public Class MainClass
    
    Shared Sub Main()
        Dim mQ As MessageQueue
        Dim mes As Message
        Dim X As String
        Dim br As BinaryReader
        If MessageQueue.Exists(".\Private$\HelloWorld") Then
            mQ = New MessageQueue(".\Private$\HelloWorld")
        Else
            Console.WriteLine("Queue doesn"t exist.")
            Return
        End If
        Try
            mes = mQ.Receive(New TimeSpan(0, 0, 3))
            br = New BinaryReader(mes.BodyStream)
            X = New String(br.ReadChars(CType(mes.BodyStream.Length, Integer)))
            Console.WriteLine("Received Message: {0}", X)
        Catch
            Console.WriteLine("No Message to Receive.")
        End Try
    End Sub
End Class


MessageQueue.Send

   
Imports System
Imports System.Messaging
Public Class MainClass
    
    Shared Sub Main()
      Dim Greeting As String = "Hello World!"
      Dim mQ As MessageQueue
      If MessageQueue.Exists(".\Private$\HelloWorld") Then
         mQ = New MessageQueue(".\Private$\HelloWorld")
      Else
         mQ = MessageQueue.Create(".\Private$\HelloWorld")
      End If
      mQ.Send(Greeting, "HelloWorld")
      Console.WriteLine("Greeting Message Sent to Private Queue.")
    End Sub
End Class


New MessageQueue

   
Imports System
Imports System.IO
Imports System.Messaging
Public Class MainClass
    
    Shared Sub Main()
        Dim mQ As MessageQueue
        Dim mes As Message
        Dim X As String
        Dim br As BinaryReader
        If MessageQueue.Exists(".\Private$\HelloWorld") Then
            mQ = New MessageQueue(".\Private$\HelloWorld")
        Else
            Console.WriteLine("Queue doesn"t exist.")
            Return
        End If
        Try
            mes = mQ.Receive(New TimeSpan(0, 0, 3))
            br = New BinaryReader(mes.BodyStream)
            X = New String(br.ReadChars(CType(mes.BodyStream.Length, Integer)))
            Console.WriteLine("Received Message: {0}", X)
        Catch
            Console.WriteLine("No Message to Receive.")
        End Try
    End Sub
End Class