How to catch app shutdown from windows
in [Visual Studio]
|
Prev: How can I group common parts of search keys in VB6?
Next: MS removed vb.winapi group and few other vb groups today
From: Henning on 2 Jun 2010 15:50 Hi, me again... My app with a .bas and a .cls module now (thx to all) compiles and runs as expected. New problem: How do I catch Windows tell me to shut down, to clean-up before ending? I have not yet added the RunAsAService. /Henning
From: Schmidt on 2 Jun 2010 16:42 "Henning" <computer_hero(a)coldmail.com> schrieb im Newsbeitrag news:hu6cll$455$1(a)news.eternal-september.org... > Hi, me again... > > My app with a .bas and a .cls module now (thx to all) > compiles and runs as expected. Oh, that was fast - is that .cls already hosting one (or another) MS-Comm-replacement? > New problem: How do I catch Windows tell me to shut down, > to clean-up before ending? > I have not yet added the RunAsAService. If you'd use Sergeys Service-approach, then you will get notified about System-Shutdown by an appropriate SCM (ServiceControlManager)-Event. In his Code-examples he already sets appropriate "notification-flags" in module: NTService.bas function: ServiceMain module-variable: ServiceStatus.dwControlsAccepted = ... The reaction to these Events takes place in: Private Sub Handler(...) in the same NTService.bas module. Currently there's no differentiation between: Service_Control_Shutdown And Service_Control_Stop in the above function - the Select Case treats them the same. If you are fine with that (Service-Stop == SystemShutdown) with regards to your cleanup-actions, then you don't need to change anything in the "default-demo". Would test and check this out though of course... Maybe in a first try only with the simple demo and the already exisiting SytemEvent-logging-routine, whilst shutting down your machine, having an already upstarted and running "demo-service". Olaf
From: Karl E. Peterson on 2 Jun 2010 16:42 Henning expressed precisely : > Hi, me again... > > My app with a .bas and a .cls module now (thx to all) compiles and runs as > expected. > New problem: How do I catch Windows tell me to shut down, to clean-up before > ending? You'll want to watch for WM_QUERYENDSESSION and/or WM_ENDSESSION. Example: http://vb.mvps.org/samples/SysInfo That class hooks the hidden top-level window created for all VB6 apps, so there's no need to add a form or create another window. -- ..NET: It's About Trust! http://vfred.mvps.org Customer Hatred Knows No Bounds at MSFT ClassicVB Users Regroup! comp.lang.basic.visual.misc Free usenet access at http://www.eternal-september.org
From: Henning on 2 Jun 2010 20:58
"Schmidt" <sss(a)online.de> skrev i meddelandet news:hu6fl1$kfl$1(a)speranza.aioe.org... > > "Henning" <computer_hero(a)coldmail.com> schrieb im Newsbeitrag > news:hu6cll$455$1(a)news.eternal-september.org... >> Hi, me again... >> >> My app with a .bas and a .cls module now (thx to all) >> compiles and runs as expected. > Oh, that was fast - is that .cls already hosting one (or > another) MS-Comm-replacement? Yes, A Reference to MSComm32.ocx -------------- In a Class: MSCommClass Option Explicit Public WithEvents mComm As MSComm Private Sub Class_Initialize() Set mComm = CreateObject("MSCOMMLIB.MSCOMM") End Sub Private Sub mComm_OnComm() Comm1_OnComm End Sub --------------- In Module1 .bas module: Public Comm1 As New MSCommClass Sub Init() ..... With Comm1.mComm If .PortOpen Then .PortOpen = False .CommPort = 1 ' .Settings = "9600,N,8,1" 'Format(RSBaud) & ",N," & Format(RSBits) & ",2" ' "19200,N,8,2" .DTREnable = True .InputMode = comInputModeText .OutBufferSize = 256 .PortOpen = True Else .CommPort = 1 ' .Settings = "9600,N,8,1" 'Format(RSBaud) & ",N," & Format(RSBits) & ",2" ' "19200,N,8,2" .DTREnable = True .InputMode = comInputModeText .OutBufferSize = 256 .PortOpen = True End If .RThreshold = 1 .SThreshold = 1 .InBufferCount = 0 End With Public Sub Comm1_OnComm() ..... With Comm1.mComm msg = .CommEvent If msg > 0 Then Select Case msg Case Is > 1000 ' If Log2File Then Beep ' Print #fil, Time & " * CommError: " & msg ' End If Case Is = comEvSend While Not GetPortBit(UART_LSR, TEMT) Wend TxOn = False Case comEvReceive If Not FirstByte Then .InputLen = 1 buffer = .Input If Len(buffer) = 1 Then RxSize = Asc(buffer) Select Case RxSize Case 3, 4, 13, 15 ..... And a DBAccess.bas to handle a MySQL DB > > >> New problem: How do I catch Windows tell me to shut down, >> to clean-up before ending? >> I have not yet added the RunAsAService. > > If you'd use Sergeys Service-approach, then you will get > notified about System-Shutdown by an appropriate > SCM (ServiceControlManager)-Event. > > In his Code-examples he already sets appropriate > "notification-flags" in > module: NTService.bas > function: ServiceMain > module-variable: ServiceStatus.dwControlsAccepted = ... > > The reaction to these Events takes place in: > Private Sub Handler(...) > in the same NTService.bas module. > > Currently there's no differentiation between: > Service_Control_Shutdown And Service_Control_Stop > in the above function - the Select Case treats them > the same. > > If you are fine with that (Service-Stop == SystemShutdown) > with regards to your cleanup-actions, then you don't need > to change anything in the "default-demo". > > Would test and check this out though of course... > Maybe in a first try only with the simple demo and the > already exisiting SytemEvent-logging-routine, > whilst shutting down your machine, having an > already upstarted and running "demo-service". Take that as the next step ;) > > Olaf > > /Henning |