Agilent Technologies 4294A Service Manual download pdf (Page 148)

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101

148 Chapter 11

Using HP Instrument BASIC

ON KEY LABEL Functions

HP Instrument BASIC provides you with a means to define softkeys within a program.

Softkeys defined in a program will be displayed in the softkey label area if you press the

[F10] while holding down the [Shift] key on the keyboard or if you press the keys [System]

IBASIC - ON KEY LABELS on the front panel. The labels are displayed only when the

program is being run. An example is given below.

100 ON KEY 1 GOTO 150

110 ON KEY 2 LABEL "Print" GOSUB Report

You can also automatically display the labels without pressing the [Shift] key while

holding down the

[Shift] key or without pressing the keys [System] - IBASIC - ON KEY

LABELS

on the front panel in the course of running a program. Since “KEY”(323page),

one of GPIB commands, works in a manner equivalent to pressing the keys specified as

parameters, the example below displays the softkeys specified by the ON KEY LABEL

statement as if you press the keys

[System] - IBASIC - ON KEY LABELS.

200 OUTPUT @Hp4294a;"KEY 47" ! [System] key

210 OUTPUT @Hp4294a;"KEY 0" ! IBASIC softkey

220 OUTPUT @Hp4294a;"KEY 6" ! ON KEY LABELS softkey

For the details of the ON KEY LABEL statement, see “HP Instrument BASIC Language

Reference” in HP Instrument BASIC User's Handbook.

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