一种简单的结束无法关闭的DOS窗口的方法
关闭dos窗口
测试方法如下
先打开两个dos窗口
运行project1.exe
再打开两个dos窗口
注销，dos窗口后打开的直接被关闭，先打开的出现立即结束窗口后被关闭，速度取决于timer的设定
测试环境: xp, vb6
代码如下
'窗体
Option Explicit
Private Sub Form_Load()
Me.AutoRedraw = True
oldwinproc = GetWindowLong(Me.hwnd, GWL_WNDPROC)
SetWindowLong Me.hwnd, GWL_WNDPROC, AddressOf OnMenu
End Sub
Private Sub Form_Unload(Cancel As Integer)
SetWindowLong Me.hwnd, GWL_WNDPROC, oldwinproc
End Sub
Private Sub Timer1_Timer()
CloseConsole1
End Sub
'模块
Option Explicit
Public Const WM_SYSCOMMAND = &H112
Public Const WM_QUERYENDSESSION = &H11
Public Const PROCESS_TERMINATE = &H1
Public Const GWL_WNDPROC = (-4)
Public Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Public Declare Function CallWindowProc Lib "user32" Alias "CallWindowProcA" (ByVal lpPrevWndFunc As Long, ByVal hwnd As Long, ByVal Msg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Public Declare Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As Long
Public Declare Function EnumWindows Lib "user32" (ByVal lpEnumFunc As Long, ByVal lParam As Long) As Long
Public Declare Function GetClassName Lib "user32" Alias "GetClassNameA" (ByVal hwnd As Long, ByVal lpClassName As String, ByVal nMaxCount As Long) As Long
Private Declare Function GetWindowThreadProcessId Lib "user32" (ByVal hwnd As Long, lpdwProcessId As Long) As Long
Private Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Long, ByVal bInheritHandle As Long, ByVal dwProcessId As Long) As Long
Private Declare Function TerminateProcess Lib "kernel32" (ByVal hProcess As Long, ByVal uExitCode As Long) As Long
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Public Declare Function GetWindowText Lib "user32" Alias "GetWindowTextA" (ByVal hwnd As Long, ByVal lpString As String, ByVal cch As Long) As Long
Public Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As String) As Long
Public oldwinproc As Long
Public g__caption As String
Public g__hwnd As Long
'查询是否关机并且关闭dos窗口
Public Function OnMenu(ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Select Case wMsg
Case WM_QUERYENDSESSION
Form1.WindowState = 0
Form1.Cls
Form1.Print "系统要关机了"
CloseConsole
Case WM_SYSCOMMAND
Case Else
End Select
OnMenu = CallWindowProc(oldwinproc, hwnd, wMsg, wParam, lParam)
End Function
'枚举并且关闭
Public Function CloseConsole() As Long
EnumWindows AddressOf EnumProc, 0
CloseConsole = 1
End Function
'枚举回调函数
Public Function EnumProc(ByVal hwnd As Long, ByVal lParam As Long) As Long
Dim s As String * 255
Dim s1 As String
Dim i As Integer
GetClassName hwnd, s, 255
For i = 1 To 255
If Mid(s, i, 1) <> Chr(0) Then
s1 = s1 & Mid(s, i, 1)
Else
Exit For
End If
Next i
If s1 = "ConsoleWindowClass" Then
GetWindowText hwnd, s, 255
TerminateProcessByHWND hwnd
Form1.Print s
Form1.Print hwnd
End If
EnumProc = 1
End Function
'关闭任何普通应用程序的窗口
Public Function TerminateProcessByHWND(ByVal hCloseWnd As Long) As Boolean
Dim hProcessID As Long
Dim hProcess As Long
On Error GoTo PROC_EXIT
If hCloseWnd = 0 Then GoTo PROC_EXIT
If GetWindowThreadProcessId(hCloseWnd, hProcessID) = 0 Then GoTo PROC_EXIT
hProcess = OpenProcess(PROCESS_TERMINATE, False, hProcessID)
If hProcess = 0 Then GoTo PROC_EXIT
If TerminateProcess(hProcess, 0&) = 0 Then GoTo PROC_EXIT
TerminateProcessByHWND = True
PROC_EXIT:
If Err.Number <> 0 Then
Debug.Print Err.Description
Err.Clear
End If
End Function
'定时查询是否有无法结束的dos窗口
Public Function CloseConsole1() As Long
Dim console As Long
console = FindWindow("ConsoleWindowClass", vbNullString) '查找是否有dos窗口
Dim s As String * 255
g__caption = ""
Dim i As Integer
If console Then
GetWindowText console, s, 255
For i = 1 To 255
If Mid(s, i, 1) <> Chr(0) Then
g__caption = g__caption & Mid(s, i, 1)
Else
Exit For
End If
Next i
'Debug.Print g__caption
g__hwnd = console
EnumWindows AddressOf EnumProc1, 0
End If
CloseConsole1 = 1
End Function
'枚举是否出现立即结束的窗口
Public Function EnumProc1(ByVal hwnd As Long, ByVal lParam As Long) As Long
Dim s As String * 255
Dim s1 As String
Dim i As Integer
GetClassName hwnd, s, 255
For i = 1 To 255
If Mid(s, i, 1) <> Chr(0) Then
s1 = s1 & Mid(s, i, 1)
Else
Exit For
End If
Next i
If s1 = "#32770" Then
s1 = ""
GetWindowText hwnd, s, 255
For i = 1 To 255
If Mid(s, i, 1) <> Chr(0) Then
s1 = s1 & Mid(s, i, 1)
Else
Exit For
End If
Next i
If s1 = "结束程序 - " & g__caption Then
TerminateProcessByHWND hwnd
TerminateProcessByHWND g__hwnd
End If
End If
EnumProc1 = 1
End Function