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What Is The Significance Of The Screen Number '0'? |
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Answer» In "calling mode", the special screen NUMBER 0 (LEAVE TO SCREEN 0) causes the SYSTEM to JUMP back to the previous call level. That is, if you have called a screen SEQUENCE with CALL SCREEN leaving to screen 0 terminates the sequence and returns to the calling screen. If you have not called a screen sequence, LEAVE TO SCREEN 0 terminates the transaction. In "calling mode", the special screen number 0 (LEAVE TO SCREEN 0) causes the system to jump back to the previous call level. That is, if you have called a screen sequence with CALL SCREEN leaving to screen 0 terminates the sequence and returns to the calling screen. If you have not called a screen sequence, LEAVE TO SCREEN 0 terminates the transaction. |
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