PRB: ExitWindowsEx with EWX_LOGOFF Doesn't Work Properly

ID: Q149690

The information in this article applies to:

Microsoft Win32 Software Development Kit (SDK)

SYMPTOMS

When an application calls ExitWindowsEx with EWX_LOGOFF in Windows 95, the application itself does not exit. Additionally, the use of the EWX_FORCE flag in conjunction with EWX_LOGOFF will cause undefined behavior.

CAUSE

It is the application's responsibility to terminate itself. However, limitations of the implementation of ExitWindowsEx in Windows 95 require that the application execute the ExitWindowsEx call and terminate itself in a particular way.

RESOLUTION

The most robust way to use ExitWindowsEx with EWX_LOGOFF is to create a separate application that does nothing but call ExitWindowsEx(EWX_LOGOFF, 0) and then exits. This method will work correctly on all platforms that support ExitWindowsEx. This application can either be a Windows application or a console application.

Code similar to the following will correctly perform a logoff on all Windows platforms that support ExitWindowsEx:


   int PASCAL WinMain(  HINSTANCE hInstance,
                        HINSTANCE hPrevInstance,
                        LPSTR lpCmdLine,
                        int nCmdShow)
   {
   ExitWindowsEx(EWX_LOGOFF, 0);

   return 0;
   }

STATUS

This behavior is by design.


Keywords          : kbNTOS400 kbWinOS2000 kbGrpUser kbWinOS95 kbWinOS98 kbWndw 
Version           : 
Platform          : 
Issue type        : kbprb

Last Reviewed: March 11, 1999