ASC (statement)
From QB64 Wiki
The ASC statement allows a QB64 program to change a character at any position of a predefined STRING.
- ASC(string_expression$[, position%]) = code%
Description:
- The string expression variable must have been previously defined and cannot be an empty string("").
- The position parameter is optional. If no position is used, the left-most position(1) is assumed.
- The position cannot be zero or greater than the string's length LEN or an Illegal function error will occur.
- The ASCII replacement code% value can be any INTEGER value from 0 to 255.
- Some ASCII control characters will not PRINT a character or may format the SCREEN. _PRINTSTRING can print them graphically.
Example: Demonstrates how to change existing text characters one letter at a time.
a$ = "YZC" ASC(a$) = 65 ' CHR$(65) = "A" ASC(a$, 2) = 66 ' CHR$(66) = "B" PRINT a$ 'ABC ASC(a$, 2) = 0 ' CHR$(0) = " " PRINT a$ ASC(a$, 2) = ASC("S") ' get code value from ASC function PRINT a$
ABC A C ASC
See also:
- ASC (function)
- MID$ (statement)
- _PRINTSTRING
- INKEY$, ASCII