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Indicates the number of columns associated with the physical terminal.
NCL procedures might want to determine the number of columns associated with the physical terminal. &ZCOLS is the maximum number of columns available at the terminal regardless of the current processing window size.
Example: &ZCOLS
&IF &ZCOLS GT 80 &THEN + &GOTO .MODEL5
Note: When processing with an LU1 type device, a value of 80is returned. For VDU (screen) type devices, the actual number of columns is returned. If tested from a procedure running under a background environment, a value of 80 is returned.
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