03. maj 2004 - 09:33
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Vente på andet program
Jeg har i et program et kald til et andet program, der skal synkronisere 2 databaser.
Når synkroniseringen er overstået, vil jeg gerne have mit program opdateret, der læser fra den ene database.
Men der skal ikke opdateres før synkroniseringen er overstået.
Hvordan kan jeg få mit program til at vente indtil det andet program er afsluttet. (Synkroniseringsprogrammet afslutter automatisk)
/Søren
ShellAndWait(sti_til_andet_program,-1)
copy følgende til et modul.
Private Declare Function CreateProcess Lib "kernel32" Alias "CreateProcessA" (ByVal lpApplicationName As Long, ByVal lpCommandLine As String, ByVal lpProcessAttributes As Long, ByVal lpThreadAttributes As Long, ByVal bInheritHandles As Long, ByVal dwCreationFlags As Long, ByVal lpEnvironment As Long, ByVal lpCurrentDriectory As Long, lpStartupInfo As STARTUPINFO, lpProcessInformation As PROCESS_INFORMATION) As Long
Private Declare Function WaitForSingleObject Lib "kernel32" (ByVal hHandle As Long, ByVal dwMilliseconds As Long) As Long
Private Type PROCESS_INFORMATION
hProcess As Long
hThread As Long
dwProcessId As Long
dwThreadId As Long
End Type
Private Type STARTUPINFO
cb As Long
lpReserved As Long
lpDesktop As Long
lpTitle As Long
dwX As Long
dwY As Long
dwXSize As Long
dwYSize As Long
dwXCountChars As Long
dwYCountChars As Long
dwFillAttribute As Long
dwFlags As Long
wShowWindow As Integer
cbReserved2 As Integer
lpReserved2 As Long
hStdInput As Long
hStdOutput As Long
hStdError As Long
End Type
Private Declare Function TerminateProcess Lib "kernel32" (ByVal hProcess As Long, ByVal uExitCode As Long) As Long
Private Declare Function CloseHandle Lib "kernel32" (ByVal hObject As Long) As Long
Private Declare Function GetExitCodeProcess Lib "kernel32" (ByVal hProcess As Long, lpExitCode As Long) As Long
Function ShellAndWait(strCommandLine As String, lWait As Long) As Long
Dim objProcess As PROCESS_INFORMATION
Dim objStartup As STARTUPINFO
Dim lResult As Long
Dim lExitCode As Long
objStartup.cb = 68
objStartup.lpReserved = 0
objStartup.lpDesktop = 0
objStartup.lpTitle = 0
objStartup.dwX = 0
objStartup.dwY = 0
objStartup.dwXSize = 0
objStartup.dwYSize = 0
objStartup.dwXCountChars = 0
objStartup.dwYCountChars = 0
objStartup.dwFillAttribute = 0
objStartup.dwFlags = 0
objStartup.wShowWindow = 0
objStartup.cbReserved2 = 0
objStartup.lpReserved2 = 0
objStartup.hStdInput = 0
objStartup.hStdOutput = 0
objStartup.hStdError = 0
'try and Create the process
lResult = CreateProcess(0, strCommandLine, 0, 0, 0, 0, 0, 0, objStartup, objProcess)
If lResult = 0 Then
ShellAndWait = -1
Exit Function
End If
'now, wait on the process
If lWait <> 0 Then
lResult = WaitForSingleObject(objProcess.hProcess, lWait)
If lResult = 258 Then 'did we timeout?
lResult = TerminateProcess(objProcess.hProcess, -1)
lResult = WaitForSingleObject(objProcess.hProcess, lWait)
End If
End If
lResult = GetExitCodeProcess(objProcess.hProcess, lExitCode)
lResult = CloseHandle(objProcess.hProcess)
lResult = CloseHandle(objProcess.hThread)
ShellAndWait = lExitCode
End Function
>>>mermermer
Jeg får desværre en fejl, så jeg kan ikke engang checke om din kode virker.
Jeg får en syntaks-fejl når jeg indtaster:
ShellAndWait (App.Path & "\Synchronizer.exe",-1)
VB forventer et lighedstegn et eller andet sted
/Søren