Chapter 15. Function Reference
362
Syntax:
Syntax 1 (Reading from the keyboard):
INPUT$(numcharas)
Syntax 2 (Reading from a device file):
INPUT$(numcharas,[#]filenumber)
Parameter:
numcharas
A numeric expression which returns a value from 1 to 255.
filenumber
A numeric expression which returns a value from 1 to 16.
Description:
INPUT$
reads the number of characters specified by
numcharas
from the key-
board or from a device file specified by
filenumber
, then returns the resulting
string.
■
Syntax 1 (without specification of
filenumber
)
INPUT$
reads a string or control codes from the keyboard.
•
INPUT$
does not echo back read characters on the LCD screen.
• The cursor shape (invisible, underlined, or full block) depends upon the specifica-
tion selected by the
LOCATE
statement.
• The cursor size depends upon the screen mode (single-byte ANK mode or two-
byte Kanji mode), the screen font size (standard-size or small-size), and the char-
acter enlargement attribute (regular-size, double-width, double-height, or quadru-
ple-size). For details about the cursor, refer to Chapter 7, Subsection 7.1.3.
• If any key previously specified for keystroke trapping is pressed during execution
of the
INPUT$
, then the keyboard input will be ignored; that is, neither typed data
is read by
INPUT$
nor keystroke is trapped.
■
Syntax 2 (with specification of
filenumber
)
INPUT$
reads from a device file (the bar code device file or any of the communica-
tions device files).
• The number of characters in a device file can be indicated by using a
LOC
func-
tion.
INPUT
File I/O function
INPUT$
Returns a specified number of characters read from the keyboard or from a device file.
Summary of Contents for BHT-BASIC 100 SERIES
Page 1: ......
Page 161: ...153 Chapter 10 Sleep Function CONTENTS 10 1 Sleep Function 154...
Page 163: ...155 Chapter 11 Resume Function CONTENTS 11 1 Resume Function 156...
Page 173: ...165 Chapter 13 Backlight Function CONTENTS 13 1 Backlight Function 166...
Page 249: ...241 Example CLOSE IF kyIn Y THEN KILL Master Dat END IF Reference Statements CLFILE...
