To find out a character's character code either look up the character in the table given in the back of your User Guide, or press the Calc button and type the "%" sign followed by the character for example "%P" returns 80. Characters with codes from 0 to 127 are the same as in the ASCII character set. Codes 128 to 255 are compatible with the IBM code page 850.
Codes from 256 upwards are for other Series 3a keys see the list below.
The GET and KEY functions return the character code of the key that was pressed. Some of the keys are not in the character set. They return these numbers:
Esc 27 Tab 9 Delete 8 Enter 13
Special keysUP 256 DOWN 257 RIGHT 258 LEFT 259 Pg Up 260 Pg Dn 261 Home 262 End 263 Menu 290 Help 291 292The Psion key adds 512 to the value of the key pressed. For example, Psion-a is 609 (512+97), and Psion-Help (Dial) is 803 (512+291).
Special character codes with PRINT
These values can be used with PRINT and CHR$():7 beep 8 backspace 9 tab 10 line feed 12 form feed (clear screen) 13 carriage return (cursor to left of window)For example, "PRINT CHR$(8)" moves the cursor backwards, one character to the left.
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