simple registry/shell question

• • Reply

  18 years ago

  by needmoreinfo

  Del

  , United States

  Joined 18 years ago

  I would do this:
  private sub form_load()
  dim pth as string,dt as string
    pth=getsetting    'etc.  to retrieve the path with the default set to ""
    if len(pth)<1 then  savesetting    'etc.  save path
    dt=getsetting 'etc. (date) with the default set to "1/1/1980"
    if datediff("d",dt,date)=0 then
      unload me
      exit sub
    end if
    savesetting   'etc.  date
  end sub
  

  
  

  
  

  
  Do you want to kill the program without saving it's info?
  Do you want the program to run inside your program?
  

  
  I got these from the API Guide
  

  
  Play with these 2 examples
  

  
  ' *******
  Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As Long, ByVal lpWindowName As Long) As Long
  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 Form_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 Form_Unload(Cancel As Integer)
     'Unload notepad
     DestroyWindow mWnd
     'End this program
     TerminateProcess GetCurrentProcess, 0
  End Sub
  '***********
  

  
  

  
  I modified this one a little when it loads it starts notepad then you click the button(command1) and notepad closes or asks you to save before closing.
  '***********
  Option Explicit
  Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As Long, ByVal lpWindowName As Long) As Long
  Private Declare Function SetForegroundWindow Lib "user32" (ByVal hwnd As Long) As Long
  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
     'KPD-Team 1999
     'URL: http://www.allapi.net/
     'E-Mail: [email protected]
  Dim lHandle As Long, lHnd As Long
  Const GW_HWNDNEXT = 2
  

  
  Private Declare Function GetWindow Lib "user32" (ByVal hwnd As Long, ByVal wCmd As Long) As Long
  

  
  Private Sub Command1_Click()
   CloseProgram
  End Sub
  

  
     'First we're going to retrieve the handle of this window
  Private Sub Form_Load()
  

  
    lHandle = Shell("C:\windows\notepad.exe", vbNormalFocus)
   'now use the :
       lHandle = InstanceToWnd(lHandle)  'from the example above
  End Sub
  Private Sub CloseProgram()
     'Set this window to the foreground
     lHnd = SetForegroundWindow(lHandle)
     DoEvents
     SendKeys "%{F4}", True
  End Sub
  Function InstanceToWnd(ByVal targetpid As Long) As Long
     Dim testhwnd As Long, testpid As Long, testthreadid As Long
     'Find the first window
     testhwnd = FindWindow(ByVal 0&, ByVal 0&)
     Do While testhwnd <> 0
         'Check if the window isn't a child
         If GetParent(testhwnd) = 0 Then
             'Get the window's thread
             testthreadid = GetWindowThreadProcessId(testhwnd, testpid)
             If testpid = targetpid Then
                 InstanceToWnd = testhwnd
                 Exit Do
             End If
         End If
         'retrieve the next window
         testhwnd = GetWindow(testhwnd, GWHWNDNEXT)
     Loop
  End Function
  

  
  

  
  

  
  '***********
  

  
  

  
  you can find cool info at AllAPI.net  (API Guide)

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