使用api
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Private Declare Function TerminateThread Lib "kernel32" (ByVal hThread As Long, ByVal dwExitCode As Long) As Long
主窗体代码调用Me.close不就可以了吗？或者在任意代码处调用Application.Exit()。如果不起作用的话是因为你在窗体关闭的事件中调用了e.Handle=True
好像不难吧？
我放进了Button1的Click事件里。
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
On Error GoTo Errmessages '在做系统操作时加排错标签是个好习惯
Dim TargetName As String = "ibmdict" '存储进程名为文本型，注：进程名不加扩展名
Dim TargetKill() As Process = Process.GetProcessesByName(TargetName) '从进程名获取进程
Dim TargetPath As String '存储进程路径为文本型
If TargetKill.Length 1 Then '判断进程名的数量，如果同名进程数量在2个以上，用For循环关闭进程。
For i = 0 To TargetKill.Length - 1
TargetPath = TargetKill(i).MainModule.FileName
TargetKill(i).Kill()
Next
ElseIf TargetKill.Length = 0 Then '判断进程名的数量，没有发现进程直接弹窗。不需要的，可直接删掉该If子句
MsgBox("没有发现进程！")
Exit Sub
ElseIf TargetKill.Length = 1 Then '判断进程名的数量，如果只有一个，就不用For循环
TargetKill(0).Kill()
End If
MsgBox("已终止" TargetKill.Length "个进程") '弹窗提示已终止多少个进程
Errmessages: ‘定义排错标签
If Err.Description Nothing Then ’判断有无错误，如果有，则 ↓
MsgBox(Err.Description) '当出现错误时，弹窗提示
End If
End Sub
可根据需要自行修改，这个备注够完善了吧？不会的再Hi我。
在SystemEvents类中 可以 用户试图注销或关闭系统时发生。 (当用户试图注销或关闭系统时发生。当用户试图注销或关闭系统时发生。) 这个 事件处理函数中 可以找到如下方法
Private Shared WM_QUERYENDSESSION As Integer = H11
Private Shared systemShutdown As Boolean = False
Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
If m.Msg = WM_QUERYENDSESSION Then
'MessageBox.Show("queryendsession: this is a logoff, shutdown, or reboot")
systemShutdown = True
End If
' If this is WM_QUERYENDSESSION, the closing event should be raised in the base WndProc.
MyBase.WndProc(m)
End Sub 'WndProc
Private Sub Form1_Closing(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles MyBase.Closing
If (systemShutdown) Then
' Reset the variable because the user might cancel the shutdown.
systemShutdown = False
If (System.Windows.Forms.DialogResult.Yes = _
MessageBox.Show("My application", "Do you want to save your work before logging off?", MessageBoxButtons.YesNo)) Then
e.Cancel = True
Else
e.Cancel = False
End If
End If
End Sub
vb.net中如何结束一个线程
一般而言,如果您想终止一个线程,您可以使用System.Threading.Thread类的Abort方法. 例如:
Dim worker As ThreadStart = New ThreadStart(AddressOf workerthreadmethod)
Dim t As Thread = New Thread(worker)
t.Start()
MessageBox.Show("Wait for a while for the thread to start.")
MessageBox.Show(t.ThreadState.ToString())
t.Abort()
MessageBox.Show(t.ThreadState.ToString())
t.Join()
MessageBox.Show(t.ThreadState.ToString())
当然,在调用Abort方法后,线程并不是立刻终止,要等线程的所有finally快中的代码完成后才会完全终止. 所以在主线程中可以用Join方法来同步,当线程还未完全终止时,t.Join()将处于等待,直到t线程完全结束后再继续执行后面的语句。
Abort方法是会导致线程跳出一个异常错误的，你需要在代码中捕获该异常。下面是一个比较完整的VB.NET线程例子：
Imports System
Imports System.Threading
Public Class MyTestApp
Public Shared Sub Main()
Dim t As New Thread(New ThreadStart(AddressOf MyThreadMethod))
'Start the thread
t.Start()
MsgBox("Are you ready to kill the thread?")
'Kill the child thread and this will cause the thread raise an exception
t.Abort()
' Wait for the thread to exit
t.Join()
MsgBox("The secondary thread has terminated.")
End Sub
Shared Sub MyThreadMethod()
Dim i As Integer
Try
Do While True
Thread.CurrentThread.Sleep(1000)
Console.WriteLine("This is the secondary thread running.")
Loop
Catch e As ThreadAbortException
MsgBox("This thread is going to be terminated by the Abort method in the Main function")
End Try
End Sub
End Class
Thread.Abort()方法用来永久销毁一个线程，而且将抛出ThreadAbortException异常。使终结的线程可以捕获到异常但是很难控制恢复，仅有的办法是调用Thread.ResetAbort()来取消刚才的调用，而且只有当这个异常是由于被调用线程引起的异常。因此，A线程可以正确的使用Thread.Abort()方法作用于B线程，但是B线程却不能调用Thread.ResetAbort()来取消Thread.Abort()操作。
