求怎样在 VB中嵌入DOS窗口，并且固定DOS窗口的位置和大小

如题
看见有人将一个VB窗体嵌入到另一个窗体中，并固定子窗体位置。

http://cache.baidu.com/c?m=9f65cb4a8c8507ed4fece763105392230e54f7276c828d4829c3933fc239045c013ca3ec74740704a5c0766301a85e5c9cf32172410037b7ec92ce1583afd7756fde2870200b863005a312b8ba3732b1248729e3b81996ad863784d8d3c4de2444ba55120a82e7fb2e1762b9&p=8e769a46d69b11a05becc12f454396&user=baidu&fm=sc&query=vb+%B9%CC%B6%A8+%D7%D3%B4%B0%BF%DA&qid=d90814ee0379ede6&p1=13&fast=y

我参照其编程，但是使用SetWindowLong时，对DOS窗体无效。这是怎么回事呢？

这对老子来说太简单了，有现成的示例代码

有啊，一会儿

[code=VB][/code]
bas

Option Explicit
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 DefWindowProc Lib "user32" Alias "DefWindowProcA" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam 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 FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long

Public Const GWL_WNDPROC = (-4)
Public Const WM_NCHITTEST = &H84
Public Const HTCAPTION = 2

Public oldhwnd As Long
Public Flag As Boolean



Public Function WndProc(ByVal hWnd As Long, ByVal uMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
   
  If Flag = False Then
  Flag = True
  Debug.Print "WndprocHandle="; hWnd
  End If
   
  If uMsg = WM_NCHITTEST Then
  If DefWindowProc(hWnd, uMsg, wParam, lParam) = HTCAPTION Then
  WndProc = 1
  Exit Function
  End If
  End If
   
  WndProc = CallWindowProc(oldhwnd, hWnd, uMsg, wParam, lParam)
End Function



form1



Option Explicit
Private Declare Function SetParent Lib "user32" (ByVal hWndChild As Long, ByVal hWndNewParent As Long) As Long

Private Sub Command1_Click()

  Dim commandstring As String
  Dim TaskID As Long
  Dim hWnd As Long
   
  TaskID = Shell("cmd.exe", vbNormalNoFocus)
   
  MsgBox "开始运行DOS"
   
  hWnd = FindWindow("ConsoleWindowClass", "C:\WINDOWS\system32\cmd.exe")
   
   
  SetParent hWnd, Form1.hWnd
   
  oldhwnd = SetWindowLong(hWnd, -4, AddressOf WndProc)
   
End Sub

Private Sub Form_Unload(Cancel As Integer)
  Unload Form1
End Sub