Passing control to the exit routine when QMF terminates

Use the ECSRQMF field of the control block to indicate that you want your exit routine to receive control whenever QMF terminates. The ECSRQMF value should be updated the first time the edit exit routine receives control.

When your edit exit routine receives control upon termination of QMF, the parameters passed to the routine are the control block, the input area, and the output area. Only the control block contains usable information.