Shutdown

You can use the CBL_EXIT_PROC library routine to trap a program shutdown and execute your own exit handler code:

Example:

id division.                                                   
program-id.   testexit.                                        
data division.                                                 
working-storage section.                                       
01 install-flag         pic x    comp-x value 0.               
01 install-params.                                             
   05 install-addrs     procedure-pointer.                     
   05 install-priority  pic x    comp-x.                       
01 status-code          pic x(4) comp-5 value 0.               
01 any-key              pic x.                                 
procedure division.                                            
                                                               
     set install-addrs to entry "myclose"                      
     call "CBL_EXIT_PROC"                                      
        using install-flag                                     
              install-params                                   
        returning status-code                                  
     end-call                                                  
                                                               
     display "this is test"                                    
     accept any-key                                            
     display "after accept"                                    
     stop run.                                                 
                                                               
entry "myclose".                                               
                                                               
     display "in close procedure".                             
     accept any-key.                                           
                                                               

That it, thank you - Georg Jarzak

Hi Chris,

CBL_EXIT_PROC is a nice call, but when I shutdown Windows without ending the program the procedure "myclose" is not executed.  

To reliably catch Windows OS shutdown processing, you have to write a Windows system service and let it catch the SERVICE_CONTROL_PRESHUTDOWN (not available in XP or Server 2003) or SERVICE_CONTROL_SHUTDOWN notification message from the service controller. This is not extremely complex, but not trivial either. See the Microsoft documentation for more information:

msdn.microsoft.com/.../ms685141(v=vs.85).aspx

msdn.microsoft.com/.../ms683241(v=vs.85).aspx

This is part of the design of the Windows operating system, not a Micro Focus limitation.

A program with a window should get a WM_CLOSE notification when it is closed for any reason, including Windows system shutdown, but that's not as reliable as using the service controller.

It's possible to write a service that does nothing but wait for the PRESHUTDOWN message, and notifies applications through another mechanism such as a Windows event object. This is also not trivial.

This procedure Works very good after a normal stop run in the program that is after the following:

1.- start the program

2.- the program displays  "this is test

3.- I hit return

4.- the program displays "after accept"

5.- the program displays "in close procedure"

6.- I can enter something

7.- I can modify the program with somethink like  "IF any-key" = ...........  ETC.

But if I do not use the normal stop run procedure, but instead close the window with    X    almost the same happens, but it is not posible to enter any key  and not make the program decide what to do:

1.- start the program

2.- the program displays  "this is test

3.- I close the window  with  X

4.-  the program displays "in close procedure"

6.- It is not posible to enter anything

7.- the display stays for 5 seconds and everything finishes

8.- I can NOT modify the program with somethink like  "IF any-key" = ...........  ETC.

Whay must I change in order to give the operator the possibility to select between different choices?

Thanks for any help

Rolf