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run an exe and get confirmation at the end

Posted on 2002-07-16
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Last Modified: 2010-05-02
Hi.

I need an API function, code or shell function that launchs an application (exe), and returns a confirmation of a succesful (or failure) termination.
i tried to use shell, but it returns a "good" start...
boaZone
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Question by:boaZone
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by:rspahitz
ID: 7157606
Dim dblRet as double
dblRet = Shell("command-line proces to launch")
if dblRet = 0 then
  msgbox "Command failed"
else
  msgbox "command launched successfully"
endif

From MS Help:
"[Shell] Runs an executable program and returns a Variant (Double) representing the program's task ID if successful, otherwise it returns zero."

If you're looking for when the shell completes, that must be done through an API: OpenProcess, GetExitCodeProcess, CloseHandle

Private Declare Function OpenProcess Lib "kernel32" _
  (ByVal dwDesiredAccess As Long, _
   ByVal bInheritHandle As Long, _
   ByVal dwProcessId As Long) As Long

Private Declare Function GetExitCodeProcess Lib "kernel32" _
  (ByVal hProcess As Long, _
   lpExitCode As Long) As Long
     
Private Declare Function CloseHandle Lib "kernel32" _
  (ByVal hObject As Long) As Long

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LVL 28

Accepted Solution

by:
Ark earned 420 total points
ID: 7158825
Hi
The easiest way is to use WScript library:

Dim WshShell As Object
Set WshShell = CreateObject("WScript.Shell")
Return = WshShell.Run("calc.exe", 1, TRUE)

Where:
Return - return error code if any
"calc.exe" - exe name to start
1 - window stile (=vbNormalFocus)
TRUE - Wait when finished


If you prefer pure API code, there are tons of "Shell and wait" samples over the web. IMHO the best and well documented is from Karl E. Peterson VB Guru:
http://www.mvps.org/vb/code/Shell32.zip

Cheers
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LVL 28

Expert Comment

by:Ark
ID: 7158942
Thanks for points, glad I could help you
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