C# Non-ASCII-Printable Bytes To String

[Zone 117]

(C#) I'm trying to convert bytes (from an image) that are not ASCII-printable into a string.
Meaning..
System.Text.ASCIIEncoding enc = new System.Text.ASCIIEncoding();
str = enc.GetString(myBytes);
..does not work, it will show ???? characters.


Any help appreciated.

[LuxuriousMeat]

(C#) I'm trying to convert bytes (from an image) that are not ASCII-printable into a string.
Meaning..
System.Text.ASCIIEncoding enc = new System.Text.ASCIIEncoding();
str = enc.GetString(myBytes);
..does not work, it will show ???? characters.


Any help appreciated.

Uh, are you trying to like show the hexadecimal value of the bytes?
If so use this:

Code: Select all

str = BitConverter.GetString(myBytes);

That will output the hexadecimal value of each byte a delimits each with a dash.

[Zone 117]

I started trying to use the BitConverter a little bit ago. As far as I can see, it converts the bytes to hex correctly. However when I convert the hex back into bytes, half the file is empty.

What method would you use to convert them back into bytes?

Thanks.

[LuxuriousMeat]

I started trying to use the BitConverter a little bit ago. As far as I can see, it converts the bytes to hex correctly. However when I convert the hex back into bytes, half the file is empty.

What method would you use to convert them back into bytes?

Thanks.

Here's one I use:

Code: Select all

        byte[] TextStringToBytes(string str)
        {
            string[] parts = str.Split(new char[] { '-' });
            if (parts.Length < 1) return new byte[0];

            byte[] bytes = new byte[parts.Length];
            for (int x = 0; x < parts.Length; x++)
                if (!byte.TryParse(parts[x], out bytes[x])) return new byte[0];

            return bytes;
        }

Example of use:

Code: Select all

string str = "00-02-03-04";
byte[] b = TextStringToBytes(str);