高分求教,如何在MDI主窗口中使用shell(或shellexecute)调用另外一个程序(也是自己写的)运行在主窗口中(类似MDI Child)?同时如何传递参数,在主窗口中怎么写,在被调用窗口中怎么写?
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Private Declare Function GetParent Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function SetParent Lib "user32" (ByVal hWndChild As Long, ByVal hWndNewParent As Long) As Long
Private Declare Function GetWindowThreadProcessId Lib "user32" (ByVal hwnd As Long, lpdwProcessId As Long) As Long
Private Declare Function GetWindow Lib "user32" (ByVal hwnd As Long, ByVal wCmd As Long) As Long
Private Declare Function LockWindowUpdate Lib "user32" (ByVal hwndLock As Long) As Long
Private Declare Function GetDesktopWindow Lib "user32" () As Long
Private Declare Function DestroyWindow Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function TerminateProcess Lib "kernel32" (ByVal hProcess As Long, ByVal uExitCode As Long) As Long
Private Declare Function GetCurrentProcess Lib "kernel32" () As Long
Private Declare Function Putfocus Lib "user32" Alias "SetFocus" (ByVal hwnd As Long) As Long
Const GW_HWNDNEXT = 2
Dim mWnd As Long
Function InstanceToWnd(ByVal target_pid As Long) As Long
Dim test_hwnd As Long, test_pid As Long, test_thread_id As Long
'Find the first window
test_hwnd = FindWindow(ByVal 0&, ByVal 0&)
Do While test_hwnd <> 0
'Check if the window isn't a child
If GetParent(test_hwnd) = 0 Then
'Get the window's thread
test_thread_id = GetWindowThreadProcessId(test_hwnd, test_pid)
If test_pid = target_pid Then
InstanceToWnd = test_hwnd
Exit Do
End If
End If
'retrieve the next window
test_hwnd = GetWindow(test_hwnd, GW_HWNDNEXT)
Loop
End Function
Private Sub MDIForm_Load()
'KPD-Team 1999
'URL: http://www.allapi.net/
'E-Mail: [email protected]
Dim Pid As Long
'Lock the window update
LockWindowUpdate GetDesktopWindow
'Execute notepad.Exe
Pid = Shell("c:\windows\notepad.exe", vbNormalFocus)
If Pid = 0 Then MsgBox "Error starting the app"
'retrieve the handle of the window
mWnd = InstanceToWnd(Pid)
'Set the notepad's parent
SetParent mWnd, Me.hwnd
'Put the focus on notepad
Putfocus mWnd
'Unlock windowupdate
LockWindowUpdate False
End Sub
Private Sub MDIForm_Unload(Cancel As Integer)
'Unload notepad
DestroyWindow mWnd
'End this program
TerminateProcess GetCurrentProcess, 0
End Sub
不能
Dim Rtn As Long
Rtn = ShellExecute(Me.hwnd, "Open", _
"http://www.csdn.net", "", "www.csdn.net", 1)
你的外部程序是自己写的吧!!
那你可以将MDI的hWND作为参数传给你的外部程序,,然后在外部程序里面用API设置程序窗体的Parent不就可以啦!!!
下面是使用 SetParent 设置一个程序的新父窗口,你参考一下吧.Option ExplicitPrivate Const GW_HWNDNEXT = 2Private Declare Function GetWindowThreadProcessId Lib "user32" (ByVal hwnd As Long, lpdwProcessId As Long) As Long
Private Declare Function GetParent Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As Long, ByVal lpWindowName As Long) As Long
Private Declare Function GetWindow Lib "user32" (ByVal hwnd As Long, ByVal wCmd As Long) As Long
Private Declare Function GetWindowText Lib "user32" Alias "GetWindowTextA" (ByVal hwnd As Long, ByVal lpString As String, ByVal cch As Long) As Long
Private Declare Function SetParent Lib "user32" (ByVal hWndChild As Long, ByVal hWndNewParent As Long) As LongPrivate old_parent As Long
Private child_hwnd As LongPrivate Sub cmdRun_Click()
Dim pid As Long
Dim buf As String
Dim buf_len As Long
Dim styles As Long
pid = Shell("你的程序", vbNormalFocus)
If pid = 0 Then
MsgBox "Error starting program"
Exit Sub
End If
child_hwnd = InstanceToWnd(pid)
old_parent = SetParent(child_hwnd, MDIForm1.hwnd)
cmdRun.Enabled = False
cmdFree.Enabled = True
End SubPrivate Function InstanceToWnd(ByVal target_pid As Long) As Long
Dim test_hwnd As Long
Dim test_pid As Long
Dim test_thread_id As Long test_hwnd = FindWindow(ByVal 0&, ByVal 0&) Do While test_hwnd <> 0
If GetParent(test_hwnd) = 0 Then
test_thread_id = GetWindowThreadProcessId(test_hwnd, test_pid) If test_pid = target_pid Then
' This is the target.
InstanceToWnd = test_hwnd
Exit Do
End If
End If test_hwnd = GetWindow(test_hwnd, GW_HWNDNEXT)
Loop
End FunctionPrivate Sub cmdFree_Click()
SetParent child_hwnd, old_parent cmdRun.Enabled = True
cmdFree.Enabled = False
End Sub