本文整理汇总了VB.NET中System.Management.CompletedEventHandler代理的典型用法代码示例。如果您正苦于以下问题：VB.NET CompletedEventHandler代理的具体用法？VB.NET CompletedEventHandler怎么用？VB.NET CompletedEventHandler使用的例子？那么恭喜您, 这里精选的代理代码示例或许可以为您提供帮助。
在下文中一共展示了CompletedEventHandler代理的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: New
' 导入命名空间
Imports System.Management
Public Class InvokeMethodAsync
Private isFinished As Boolean = False
Private returnObj As ManagementBaseObject
Public Sub New()
' Get the object on which the method
' will be invoked
Dim processClass As ManagementClass = _
New ManagementClass("Win32_Process")
' Create a results and completion handler
Dim handler As ManagementOperationObserver = _
New ManagementOperationObserver
AddHandler handler.Completed, _
AddressOf Me.Completed
' Invoke method asynchronously
Dim inParams As ManagementBaseObject = _
processClass.GetMethodParameters("Create")
inParams("CommandLine") = "calc.exe"
processClass.InvokeMethod( _
handler, "Create", inParams, Nothing)
' Do something while method is executing
While (Not Me.IsComplete)
System.Threading.Thread.Sleep(1000)
End While
End Sub
' Property allows accessing the result
' object in the main function
Private Function ReturnObject() As ManagementBaseObject
Return returnObj
End Function
' Delegate called when the method completes
' and results are available
Private Sub NewObject(ByVal sender As Object, _
ByVal e As ObjectReadyEventArgs)
Console.WriteLine("New Object arrived!")
returnObj = e.NewObject
End Sub
' Used to determine whether the method
' execution has completed
Private Function IsComplete() As Boolean
Return isFinished
End Function
Private Sub Completed(ByVal sender As Object, _
ByVal e As CompletedEventArgs)
isFinished = True
Console.WriteLine("Completed method invocation.")
End Sub
Public Shared Function _
Main(ByVal args() As String) As Integer
Dim invokeMethod As New InvokeMethodAsync
Return 0
End Function
End Class