CRT


The CRT statement sends data directly to the terminal, even if a PRINTER ON statement is currently active.

 

COMMAND SYNTAX

CRT | DISPLAY expression {, expression..} {:}

 

SYNTAX ELEMENTS

An expression can evaluate to any data type. The CRT statement will convert the result to a string type for printing. Expressions separated by commas will be sent to the screen separated by a tab character.

The CRT statement will append a newline sequence to the final expression unless it is terminated with a colon ":" character.

 

NOTES

As the expression can be any valid expression, it may have output formatting applied to it.

A jBC program is normally executed using buffered output mode. This means that data is not flushed to the terminal screen unless a newline sequence is printed or terminal input is requested. This makes it very efficient. However you can force output to be flushed to the terminal by printing a null character CHAR(0). This has the same effect as a newline sequence but without affecting screen output.

For compatibility, DISPLAY is can be used in place of CRT.

 

EXAMPLES

CRT A "L#5"
CRT @(8,20):"Shazza was here":
FOR I = 1 TO 200
    CRT @(10,10):I:CHAR(0):
...
NEXT I


jBC