Using a Callback function

You can use a callback functionA function that is passed as an argument in another function. Callback functions must be user-written functions. (with the OnEvent function) to perform housekeeping tasks before the system shuts down. You would normally call OnEvent() in the main startup function (defined with the [Code]Startup parameter). Each time a Shutdown() call is made, the callback function is run.

/* A user shutdown procedure. */

INT 

FUNCTION

MyStartupFunction()

  ... 

	OnEvent(25, MyShutdown);

  ...

END



INT 

FUNCTION

MyShutdown()

	STRING sPath;

	 // Perform housekeeping tasks

	 ...

	 sPath = ProjectCurrentGet();

	If sPath = "ProjectA" Then

				ProjectSet("ProjectB");

   Else

			ProjectSet("ProjectA");

   END

	 Shutdown("Everybody", sPath, 2);

END