Wrox Programmer Forums Converting an ASCII character to binary?
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May 7th, 2006, 08:20 PM
 skyraider Registered User Join Date: May 2006 Posts: 1 Thanks: 0 Thanked 0 Times in 0 Posts
Converting an ASCII character to binary?

Hi,

I'm working on a program to encode and decode base64. I know there's a built-in method, but I want to do it myself to really learn something. My question is: how do I take the ASCII value of a letter and convert it to binary? Please see the second-to-last line.

Code:
```        Dim UserInput As String = txtInput.Text
Dim ASCIIinput(txtInput.Text.Length - 1) As Integer

' convert user input to ASCII numbers
Dim i As Integer
For i = 0 To (UserInput.Length - 1)
ASCIIinput(i) = AscW(UserInput.Chars(i))
Next

' /* starting encoding process */
' take three bytes from the input
Dim i2 As Integer
Dim ByteArray(ASCIIinput.Length - 1) As Byte
For i2 = 0 To (ASCIIinput.Length - 1)
ByteArray(i2) = CByte(ASCIIinput(i2))
' uhh... this just converts it to another 2-digit integer, just like the ASCII number... not an 8-bit binary number
Next```
I'm a total newbie here, but I am working through your VB 2005 book ;) Thanks!

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