Chapter 15. Function Reference
346
Syntax:
CHR$(characode)
Parameter:
characode
A numeric expression which returns a value from 0 to 255.
Description:
CHR$
converts a numerical ASCII code specified by
characode
into the equiva-
lent single-byte character. This function is used to send control codes (e.g., ENQ
and ACK) to a communications device file or to display a double quotation mark or
other characters having special meanings in the BHT-BASIC.
Run-time errors:
Example:
• To output an ACK code to a communications device file, use
CHR$(&H06)
. The
ASCII value for the ACK code is &H06.
PRINT #1,CHR$(&H06);
• To display control codes from 8 (08h) to 31 (1Fh), refer to the program examples
• To display double quotation marks around a string, use
CHR$(34)
as shown
below. The ASCII value for a double quotation mark is 34 (22h).
PRINT CHR$(34);"Barcode";CHR$(&H22)
CHaRacter code
String function
CHR$
Returns the character corresponding to a given ASCII code.
Error code
Meaning
05h
Parameter out of the range
(
characode
is out of the range.)
"Barcode"
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...
