Purpose
Displays a message on the user’s screen and optionally requests a response.
Syntax
DISPLAY (expression) [REPLY char-ref]
Parameters
-
expression
- Is converted, where necessary, to a character string. This character string is displayed. It can contain mixed character data. If the expression has the GRAPHIC attribute, it is not converted.
-
char-ref
- Specifies a character reference that receives the user-entered response. The response can contain CHARACTER, GRAPHIC, or mixed data.
Example
display ('Communication link established.');
displays the message:
Communication link established.
Restrictions
The REPLY option suspends program execution until the user enters a response.
If GRAPHIC data is entered in the REPLY, it is received as character data that contains mixed data. Such character data can be converted to GRAPHIC data using the GRAPHIC BUILTIN.
Note:
The REPLY parameter is supported when running Open PL/I under the control of Enterprise Server.
Description
The DISPLAY statement displays a message on the user’s screen and optionally requests the user to enter a response to the message.