UniBasic Commands Reference - Rocket Software

Parameters
The following table describes each parameter of the syntax.
Parameter Description
col.expr Specifies the column position to place the cursor.
Can be a literal value or variable.
Must be a positive numeric value.
Value 0 is the leftmost column on the screen. For most terminals, col.expr
can range from 0 to 79 (the right-hand side of the screen).
,row.expr Specifies the row at which to place the cursor. Defaults to the current row.
Can be either a literal value or variable.
Must be a positive value.
Value 0 is the top of the screen. For most terminals, row.expr can range
from 0 to 23 (the last row on the screen).
-num.expr Specifies an @ terminal function. For valid @ terminal functions and their
effects, see the next table.
@ Parameters
Tip: Use PRINT, DISPLAY, and CRT in combination with the UniBasic @ function
to position the cursor on the screen before printing or to execute other terminal
functions. Execute the ECL REUSE.ROW command to determine whether a line feed
is executed when the UniBasic PRINT @ function references column only. For
example, PRINT @(10) rather than PRINT @(3,10).
@ Function Options
The following @ function options direct the terminal to take an action.
Option Description
-1 Clear screen, home cursor.
-2 Home cursor.
-3 Clear from cursor to end of screen.
@ Function Options
@ 1-62