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Carl Motsinger
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 Posted: Fri May 19, 2006 5:14 am Post subject: StringToCharArrayToByteArray |
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Is there something in Delphi7 to:
Take the letters in a string , for example..."XXX"
....place them into Char Array then
another something?... and place
that into a Byte array?
Or just convert "XXX" into a 3 element Byte array.
Carl Motsinger |
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Justus J.
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| Posted: Sat May 20, 2006 12:14 pm Post subject: Re: StringToCharArrayToByteArray |
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Hi,
what's the need for this? Characters in a string can be identified using
the index, which in turn can be typecasted to bytes:
s := 'hello world';
c := s[5]; // o
b := byte(c); // 111 or b := ord(c);
or, shorter :
b := byte(s[5]);
Justus
can On 19/05/2006 06:18, Carl Motsinger wrote:
| Quote: | Is there something in Delphi7 to:
Take the letters in a string , for example..."XXX"
....place them into Char Array then
another something?... and place
that into a Byte array?
Or just convert "XXX" into a 3 element Byte array.
Carl Motsinger
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Riki Wiki
Guest
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| Posted: Sat May 20, 2006 2:14 pm Post subject: Re: StringToCharArrayToByteArray |
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On Thu, 18 May 2006 23:18:58 -0500, Carl Motsinger wrote:
| Quote: | Or just convert "XXX" into a 3 element Byte array.
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Hoi Carl
You can use StrPCopy for that. It copies from string to a C style
null-terminated pointer string. Use StrPLCopy to check for overflow of
receving array.
uses SysUtils;
var
arr: array[0..9] of Char;
s: String;
....
s:='abc';
StrPCopy(arr,s);
If you actually only need the string as a parameter to call C style API
(Win32) you can just type cast the Delphi string, use pchar. Note: If the
Delphi string should receive string data back (var reference) from such a
call you need to assure enough space has been allocated, to do so use
SetLength.
Beside this, you need to be aware that this news group do not officially
exist. For further questions about your problem post in
b.p.d.language.delphi.general, and when you do so you need to post on the
Borland news server.
<http://tinyurl.com/8m5nw>
which links to
<http://delphi.wikicities.com/wiki/Delphi_Newsgroups> |
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