P.T.A.M.
Administrator
Joined: 08 Oct 2003
Posts: 752
Location: Greece
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 Posted: Jan 13th, 2004 08:41 AM Post subject: Shell and Wait |
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With this code you can shell an executable like the normal shell function but you can find out when you close it 
| Code: | Option Explicit
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 Const STATUS_PENDING = &H103&
Private Const PROCESS_QUERY_INFORMATION = &H400
Public Function ShellandWait(ExeFullPath As String, _
Optional TimeOutValue As Long = 0) As Boolean
Dim lInst As Long
Dim lStart As Long
Dim lTimeToQuit As Long
Dim sExeName As String
Dim lProcessId As Long
Dim lExitCode As Long
Dim bPastMidnight As Boolean
On Error GoTo ErrorHandler
lStart = CLng(Timer)
sExeName = ExeFullPath
'Deal with timeout being reset at Midnight
If TimeOutValue > 0 Then
If lStart + TimeOutValue < 86400 Then
lTimeToQuit = lStart + TimeOutValue
Else
lTimeToQuit = (lStart - 86400) + TimeOutValue
bPastMidnight = True
End If
End If
lInst = Shell(sExeName, vbMinimizedNoFocus)
lProcessId = OpenProcess(PROCESS_QUERY_INFORMATION, False, lInst)
Do
Call GetExitCodeProcess(lProcessId, lExitCode)
DoEvents
If TimeOutValue And Timer > lTimeToQuit Then
If bPastMidnight Then
If Timer < lStart Then Exit Do
Else
Exit Do
End If
End If
Loop While lExitCode = STATUS_PENDING
ShellandWait = True
ErrorHandler:
ShellandWait = False
Exit Function
End Function
Private Sub Form_Load()
ShellandWait "notepad.exe"
MsgBox "finished"
End Sub |
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No one is completely useless. They can at least be an example of what to avoid. |
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