Eloquence Language Manual

9 Output Operations

PRINTER IS

Defines the standard printer (the device used for all PRINT and PRINT USING output).

SYSTEM PRINTER IS

Defines the output device for LIST, FETCH and CAT operations.

PRINT ALL IS

Defines the output device for all messages normally shown on the display.

REQUEST

Reserves use of a specified device (PORT) for one process.

RELEASE

Cancels any REQUEST for exclusive use of a peripheral device (PORT) by that process.

BEEP

Outputs an audible signal to the operator.

DISP*

Displays text and variables.

LDISP*

Like DISP, except an entire display line is used.

REFRESH ON/OFF

Redraws the display.

CURSOR*

Controls the display cursor and enhancements.

PRINT

Outputs text and variables on the standard printer. Also, it is an output control function used with DISP and PRINT.

LIN, PAGE, SPA and TAB

Output-control functions used with DISP and PRINT.

IMAGE

Lists specifiers controlling form of items output with PRINT USING and DISP USING.

PRINT USING

References image specifiers while outputting each item to the standard printer.

DISP USING*

Uses the same field specifiers mentioned above for display outputs.

Chapter contents:

Restrictions on the Use of ASCII Control Characters

Selecting Output Devices

Printers

Audible Output (BEEP)

Displayed Output (DISP)

The LDISP Statement

POPUP BOX

The REFRESH Statement

Output Functions

Display Enhancements

The PRINT Statement

Formatted Output

Spool Files

Printer Control Functions