Ascii codes...

Hi everyone!
I am gonna get crazy soon with this problem... the problem
is the following: a program i am building gets from a
procedure a 8-bit binary value. Let's suppose, for example,
10010100 . Now my program has to convert this number to
decimal, in this case 148, and then to the corresponding
ASCII character, in this case "o with dieresis". The
problem is that when i get characters from decimal values,
sometimes the Chr function gives me some strange problems with some characters... This seems to happen when i
get ASCII characters from decimal values that are lower
than 31 or over 200... but also other characters.

Is there anybody who wants to take a look to my program?...
i'll send it by email...
Thanks for the support

Hi,

Would you please send me the code? I'm sure I will be able to help. My Email address: [email protected]

Some of those Characters are below the range of "Windows" so to speak. They arn't letters or such, there things like "Ctrl-x" and such. The don't show up on the screen well. I've used them only to talk to a 1960's computer over a phone line in an app i made.

Quote:

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Sometimes the Chr function gives me some strange problems with some characters..

---

What kinds of problems happen?

OK, please send me the code to [email protected]

I agree with gwdash. The other characters aren't supported. So, I suggest this outputting with a UDT, like this:

Code:

---

Type MyCode
  Decimal As Integer
  ChCode As String
  Add As Boolean
  Sub As Boolean 
End Type

---

Then, you can output your function as MyCode, and fill in Decimal(Decimal Number) but DON'T fill in the ChCode. Then, if it comes up with a code that is too high, subtract 128 from it. In this case, MyCode.Sub = True. If it's too low, Add 32 to it. In this case, MyCode.Add = True.

The Adding will work, I'm positive (no pun intended). But i'm not so sure on the subtraction side. Keep changing it until you get no errors.

Then, when you display the code, you must use this function to get the correct Ascii code:

Code:

---

Function RetChar(ByVal lpCode As MyCode) As String
  If lpCode.Sub = True then lpCode.Decimal = lpCode.Decimal - 128

  If lpCode.Add = True then lpCode.Decimal = lpCode.Decimal + 64

  RetChar = Chr(lpCode.Decimal)
End Function

---

I am gonna try this way. I think this should work... i will
post an answer as soon as possible (probably after
holidays :-P)
Thanks a lot to everyone

Hi, I looked into your codebut did not encounter the problems as you mentioned in your email.
When I copy the ASCII chars in the last textbox (first form) to the Windows Clipboard (Ctrl-C) and paste them in the first textbox (2nd form) the chars are displayed differently (because the structure of the Font) but the contents are the same as in the first textbox. I checked the hex values for each character and that was correct.
But, how do you copy the contents of the mask to the 2nd Form? In your program you can't copy/paste it. And with Ctrl-C you can ONLY copy/paste ONE item at a time...

I did not try ASCII codes $0D and $0A. If these are the bytes reproducing the error, perhaps you could check for a CR/LF and encrypt an extra byte or something.
Anyway, I will try your program with these values.