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closing apps

Posted on 2001-07-08
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Last Modified: 2012-05-04
wonmdering what api to call in order to close all running apps?
thanks
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Question by:cybermoonlight
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3 Comments
 
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q2eddie earned 100 total points
ID: 6263306
Hi, cybermoonlight.

#Links
1. "Enumerate Top Level Windows"
http://www.thescarms.com/VBasic/EnumWindows.asp

2. "Safely Shut Down a Running Application"
http://www.thescarms.com/VBasic/StopProcess.asp

Bye. -e2
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Expert Comment

by:wileecoy
ID: 6263310
Here are some things to look at:

http://www.freevbcode.com/ShowCode.Asp?ID=2781

http://www.vbapi.com/ref/w/wm_close.html

http://www.vbapi.com/ref/d/destroywindow.html

http://www.vbweb.co.uk/show.asp?id=146

They either kill a process, or a window (close / destroy).



Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long

Private Const WM_CLOSE = &H10

Call SendMessage(hWnd, WM_CLOSE, 0, 0)

Where hWnd is the handle of the window to close.


http://www.mvps.org/vbnet/index.html?code/subclass/shellnotifybasic.htm

That link will show how to enumerate all windows and child windows.
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LVL 51

Expert Comment

by:Ryan Chong
ID: 6263450
Hi cybermoonlight,

Here is another samples:

'Close an application using the API.

Private Declare Function FindWindow Lib "user32" Alias _
"FindWindowA" (ByVal lpClassName As String, _
ByVal lpWindowName As String) As Long
Private Declare Function PostMessage Lib "user32" Alias _
"PostMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, _
ByVal wParam As Long, lParam As Any) As Long
Private Const WM_CLOSE = &H10
Private Sub cmdClose_Click()
   Dim winHwnd As Long
   Dim RetVal As Long
   winHwnd = FindWindow(vbNullString, Text1.Text)
   Debug.Print winHwnd
   If winHwnd <> 0 Then
       RetVal = PostMessage(winHwnd, WM_CLOSE, 0&, 0&)
       If RetVal = 0 Then
           MsgBox "Error posting message."
       End If
   Else
       MsgBox Text1.Text + " is not open."
   End If
End Sub
______________________________________________

Obtaining a List of Running Processes:

http://www.mvps.org/vbnet/code/system/toolhelpprocesses.htm

Compare your exe path with the processes running.

______________________________________________

Useful links:

http://www.mvps.org/vbnet/faq/main/getmodulehandle.htm

http://www.mvps.org/vbnet/code/system/toolhelpprocesses.htm

http://www.mvps.org/vbnet/faq/main/getexitcodeprocess.htm

http://www.mvps.org/vbnet/faq/main/getmoduleusage.htm

'Hope will help.

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