Schedule 18 Processing aids - Food Standards Australia New Zealand Outlook VBA - Run a code every half an hour - Stack Overflow
Place the following code in the ThisOutlookSession module (Tools->Macros->VB Editor):Private Sub Application_Quit() If TimerID <> 0 Then Call DeactivateTimer 'Turn off timer upon quitting VERY IMPORTANT End Sub Private Sub Application_Startup() MsgBox "Activating the Timer." Call ActivateTimer(1) 'Set timer to go off every 1 minute End Sub
Place the following code in an new VBA moduleDeclare Function SetTimer Lib "user32" (ByVal hwnd As Long, ByVal nIDEvent As Long, ByVal uElapse As Long, ByVal lpTimerfunc As Long) As Long Declare Function KillTimer Lib "user32" (ByVal hwnd As Long, ByVal nIDEvent As Long) As Long Public TimerID As Long 'Need a timer ID to eventually turn off the timer. If the timer ID <> 0 then the timer is running Public Sub ActivateTimer(ByVal nMinutes As Long) nMinutes = nMinutes 1000 60 'The SetTimer call accepts milliseconds, so convert to minutes If TimerID <> 0 Then Call DeactivateTimer 'Check to see if timer is running before call to SetTimer TimerID = SetTimer(0, 0, nMinutes, AddressOf TriggerTimer) If TimerID = 0 Then MsgBox "The timer failed to activate." End If End Sub Public Sub DeactivateTimer() Dim lSuccess As Long lSuccess = KillTimer(0, TimerID) If lSuccess = 0 Then MsgBox "The timer failed to deactivate." Else TimerID = 0 End If End Sub Public Sub TriggerTimer(ByVal hwnd As Long, ByVal uMsg As Long, ByVal idevent As Long, ByVal Systime As Long) MsgBox "The TriggerTimer function has been automatically called!" End Sub
1) This timer function does not require that a particular window is open; it works in the background
2) If you don't deactivate the timer when the application closes it will likely crash
3) The example shows the timer being activated at startup, but it can just as easily be called by a different event
4) If you don't see the msgbox indicating that the timer was activated upon startup, your macro security is set too high
5) To have the timer deactivate after one iteration of the time interval add: If TimerID <> 0 Then Call DeactivateTimer after the msgbox statement in sub TriggerTimer
Someone else suggested
"one point to note, if you don't check if TimerID is the same as idevent in the TriggerTimer, you get every so often, and not the time you asked for."Public Sub TriggerTimer(ByVal hwnd As Long, ByVal uMsg As Long, ByVal idevent As Long, ByVal Systime As Long) 'keeps calling every X Minutes unless deactivated If idevent = TimerID Then MsgBox "The TriggerTimer function has been automatically called!" End If End Sub
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