Metrologic IS1000 Series Guía de usuario descargar pdf (Pagina 61)

Chapter

BASIC

Commands

Purpose

To create a menu and let the user to select an item by using (1) the shortcut keys or

(2) the UP/DOWN arrow keys, and then the ENTER key to confirm the selection.

Also, allow the use of the ESC key to cancel the current operation.

Syntax

A% = MENU(Item$)

Remarks

"A%" is an integer variable to be assigned to the result; it is the ordinal number of

the menu item that the user has selected.

"Item$" is a string variable, indicating the menu items that are separated and ended

by carriage return (CR, 0x0d).

Note that the following features are applied to the 8xxx series only -

 Shortcut key: & (It is restricted to only one character next to &.)

 Menu title: @ (The title can be put anywhere in the menu string.)

 Display the Up/Down arrow icons

Example

Below is an illustrative example:

MENU_STR$ = "1 INFORMATION" + CHR$(13)

MENU_STR$ = MENU_STR$ + "@SYSTEM MENU" + CHR$(13)

MENU_STR$ = MENU_STR$ + "&2 SETTINGS" + CHR$(13)

MENU_STR$ = MENU_STR$ + "&3 TESTS" + CHR$(13)

MENU_STR$ = MENU_STR$ + "4 LOAD PROGRAM" + CHR$(13)

MENU_STR$ = MENU_STR$ + "&5 BLUETOOTH MENU" + CHR$(13)

...

S% = MENU(MENU_STR$)

...

POWER_ON

Purpose

To determine whether to restart or resume the program upon powering on.

Syntax

POWER_ON(N%)

Remarks

"N%" can be 0 or 1.

Value Meaning

Resume

Restart

Example

POWER_ON(0) ' set to resume mode

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Metrologic IS1000 Series Guía de usuario Pagina 61