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Is Windows Shutting Down?

Posted on 1998-10-07
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Last Modified: 2010-04-06
Can I get my Delphi program to detect if Windows is about to shut down?
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Question by:zammo
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ID: 1342149
Yes,
you should handle the following message to your form
as
  TForm1 = class(TForm)
    ...
    procedure EndSMsg(var T : TMessage);message  WM_QUERYENDSESSION;
    ...
  end;
.
procedure TFOrm1.EndSMsg(var T : TMessage);
begin
  // return false if you want to cancel logoff or shutdown
  T.result := true;
  if T.lparam <> ENDSESSION_LOGOFF then
  begin
     //shutting down
  end else
  begin
     //login off
  end;
end;

regards, igor
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