mahris

No need to trigger WM_QUERYENDSESSION yourself, Delphi already does it in Forms.pas: procedure TCustomForm.WMQueryEndSession(var Message: TWMQueryEndSession); begin Message.Result := Integer(CloseQuery); end; So, do your actions in standard OnCloseQuery. Note. In my Windows 10, on shutdown I receive OnCloseQuery. but not OnClose (WM_CLOSE).