To set the maximum number of lines to be stored for a given ClearWin window.
Syntax
SUBROUTINE SET_MAX_LINES@(W,N) INTEGER(7) W
INTEGER N
Description
Sets a maximum to the number of lines of output (N > 50) that is to be stored
by the ClearWin window with handle W. Before storing line N +1, line 1
is deleted etc..
