OpenEdge Development:<br />Progress 4GL Reference SCREEN-LINES function

Release 10.1A: OpenEdge Development:
Progress 4GL Reference

SCREEN-LINES function

Returns the number of lines you can use to display frames. This value omits the space used by the message area and status area.
Note: Does not apply to SpeedScript programming.

Syntax
SCREEN-LINES 
Example

Here, a different number of customer records is displayed depending on the number returned by the SCREEN-LINES function:
r-scrnln.p
DEFINE VARIABLE nbrdown AS INTEGER.

IF SCREEN-LINES > 21
THEN nbrdown = 7.
ELSE nbrdown = 6.

FOR EACH customer WITH nbrdown DOWN:
  DISPLAY cust-num name address city state country.
END. 