Setting Up User Exits › Switch-in Exit › Return Codes

Return Codes

On exit, CA TPX checks register 15. The results for each possible value of register 15 are as follows:

0

Performs normal screen refresh process.

4

Clears the screen and then perform normal screen refresh process.

8

Clears the screen and then sends to the application either data supplied by the exit or an LUSTAT with the sense code supplied by the exit.

12

Sends to the application either data supplied by the exit or an LUSTAT with the sense code supplied by the exit.

16

Clears the screen only.

20

Does nothing.