Returns the corresponding ASCII or Unicode integer representation of a character
Syntax
Usage
result = Asc( str [, position ] )
Parameters
str
The source string.
position
The position in the string of a character.
Return Value
The ASCII or Unicode integer representation of the character at position in str.
Description
If
str is a
String or a
ZString, an
ASCII code value is returned.
If
str is a
WString, a
Unicode code value is returned.
The function returns zero (0) if the string is a zero length string,
position is less than one (1), or
position is greater than the number of characters in
str.
Chr performs the opposite function for ASCII strings, while
WChr is the opposite for Unicode strings, returning a string containing the character represented by the code passed as an argument.
Example
Print "the ascii code of 'a' is:"; Asc("a")
Print "the ascii code of 'b' is:"; Asc("abc", 2)
will produce the output:
the ascii code of 'a' is: 97
the ascii code of 'b' is: 98
Unicode example (Note to documentation editors: don't put inside %%(qbasic) markers or the Russian text will disappear!)
dim a as wstring * 11
a = "Привет, мир"
print "the Unicode of the second char of " & a & " is: " & asc(a)
|
will produce the output:
the Unicode of the second char of Привет, мир is: 1088
|
Platform Differences
- DOS does not support the wide-character string version of Asc.
Differences from QB
- The optional position argument is new to FreeBASIC.
- QB does not support the wide-character string version of Asc
See also