Convert From ASCII To Hex Number
Feb 28, 2012
I realize this might be a redundant post, but I can't seem to find (through all the searches) the code to do what I need to do...or it's just not working for me.
I have an Intel hex file (containing ASCII characters) such as :041400000262F5226D
I need to convert the values to hex numbers into memory (an array), such as
[code...]
I'm not sure of the proper combination of conversions I need to get this accomplished. I've tried several combinations of Val/Asc/ etc. but can't get it correct.
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Jun 6, 2009
Would it be possible to convert strings to ASCII and subtract a number from each at the source, then add a number at the receiving end? I am sending messages on a LAN network (hopefully) and I know the packets may be monitored so I want to make sure they at least can't be read just by opening the data, something simple will do.
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Jan 1, 2010
Here's my code and the result, as much as I know, is in ASCII:
Private Sub Form_Load()
With MSComm1
.CommPort = 1
If .PortOpen = False Then
[Code]...
I need the data to be in Hex
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Aug 29, 2010
This has been driving me crazy for two weeks! I just started learning Vb.net, so please forgive me if I make rookie mistakes. Basically, I would like to convert any type of file to Ascii code. An mp3, .wav, .avi etc. The most I was able to do is convert only the first character of the file to Ascii. Also, I'm not sure what would be the fastest method to do this. SteamReader, FileStream, or BinaryReader. Can anyone explain what method would be best? This is what I have so far:
[Code]...
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Jun 14, 2009
how i can convert from Hexadecimal to Ascii ? like this ez : a hex text "6d 65 68 64 69 33" will became a ascii "mehdi3"
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Oct 29, 2009
I'm testing a "simple" login program: it has predetermined ID and Password, after input is correct then you can change the ID and Password. It saves a Non-Encrypted file that has the new ID and Password. Then after the program loads (when it is opened again) it reads the file to retreive the ID and Password, but when it reads, it reads it in 32-bit code, I need it in Ascii (with alphabetical representation) so that I can compare it to the input.I also get an error stating the length cannot be a negative (right after my comment).
Here is my code:
Imports System
Imports System.IO
Imports System.Text
[code]....
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Dec 10, 2011
I know how to convert a character to ascii Asc("E") = 65 How do I reverse the process? ie change 65 to E?
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Feb 15, 2009
I have a string of ASCII in HEX. ( 5A65726f)so first i split them into 2s >>>> 5A 65 72 6f then i change the hex to integer using these integer i convert them to char using chr() it did the job great, i can see the correct word i want..but it give me an error saying " make sure it has the right format" ( error shown below)
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim hexnum As String
Dim converttohex As String
Dim hextonum As Integer
[code]....
i thought it was the for loop problem...since i will go up to 7 while len(hexnum) is 8 so it would loop again but there is nothing after 8th HEX?so i tried For i = 1 To Len(hexnum)-1 Step 2 ...this time...textbox didnt show anything...+ the same error came up...
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Jun 14, 2006
How to convert byte array to ASCII in VB.NET System.Text.Encoding.ASCII.Getstring(y) it gives the data like 52414D41 . but i need "RAMA" instead of 52414D41.
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May 24, 2006
i have a text file that orignated on an IBM mainFrame. the file contains numeric data as follows:
00439N.
The above value should be -04395. I'm having problems making this conversion happen are there anu methods in the framework
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Dec 22, 2011
I am looking for a function in vb.net which will convert a hex value to the corresponding ascii, like in excel.For example, in excel,
=CHAR(HEX2DEC("c7")) will return, 'Ç'
Is there any library function, which does the same, in .net
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Jul 21, 2009
how to convert ascii to hexa using vb? for example...hexa 13 = ascii 31(1) 33(3)now i have it in ascii but i need to combine and convert this into 13 instead of 31 33.i need to create a function to do this in a class library den after dat call it from the app source code?
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Aug 4, 2009
I want to convert Octal value to Ascii How can i do that Im using vb.net 2008
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Sep 19, 2010
I've tried searching for this, but most people just want to convert hex values into their ASCII equivalents. That's not what I am looking to do.I'm looking to see if VB.NET has a simple built-in function to do this:
Private Function NibbleToString(ByVal Nibble As Byte) As String
Dim retval As String = String.Empty
Select Case Nibble[code]....
Is there a more elegant way to accomplish the same thing as that code?
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Aug 19, 2011
How do I use key_down event in my vb.net?It is so sucking I have seen so many codes on google but none of them working I dont understand where its going wrong
[Code]...
2) can anyone post a sample of these "a textbox that allows only numbers from user using key_down"
3) I see people using e.keychar but in my vb.net(2008) I dont have that keyword I guess e.keycode must be used is that right? or e.keyvalue?
4) I see e.keycode = keys.A but I need to accept 'a' not "A" How do I specify a number or letter with their ascii value ?
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Jun 13, 2010
I'm trying to convert an ASCII String to hex for VB 2008. So far I have this :
Code:
Function asc2hex(ByVal StrName As String) As String
Dim loopCount As Integer, strHold As String
For loopCount = 1 To Len(StrName)
strHold = strHold & Hex(Asc(Mid(StrName, loopCount, 1)))
Next loopCount
asc2hex = MsgBox(strHold)
End Function
However, It is not reporting all the bytes that it should be. For example: This is the correct format.
[Code]...
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Dec 4, 2009
Id like to create a simple program consisting two textboxes and a button, "whats the point i hear you ask?" simple, id like to be able to enter in a string into the first textbox, press the button and then have it converted into binary and displayed into the second textbox.
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Aug 16, 2011
I'm not exactly sure if this is the correct question to be asked but I will tell you what I am attempting. I have an ASCII txt file with product data in it. It does not have headers. I am looking for a way to convert this data into an XML file, however, I want it to parse through one of the txt fields to incorporate a look-up field and modify the data based on that field. Now I could use VB.NET, C# or Javascript. Example provided:
[Code]...
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Jul 26, 2009
is there a way to convert characters to 7BIT ASCII with .NET?
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Jun 15, 2009
How Convert Decimal , Octal to Ascii ?
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Aug 2, 2011
I need some thought input on how I can take my string of HEX values and convert them to ASCII according to the specifications below: A function would be ideal since I need to quickly decode about 250 records all having 20 thresholds to record.[code]
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Feb 15, 2011
I have lines of text that contain "degree symbols" (ASCII(248)). I want to replace those symbols with an alphabet character (Z).I am changing the line of text into a charArray,iterating through one character at a time. How do I define the ASCII(248) in code to replace each occurence with a Z? Something like string.Replace(ASCII(248), "Z") would be nice, but that doesn't seem to work too well.
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Aug 12, 2010
way to convert byte array to ascii string?
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Dec 5, 2009
convert char to ascii in array form?.asci[a]but a is char array.i need a syntax for it.
Admin Note: all the communication on the forums.
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Feb 20, 2009
as part of a small encryption program i am making, i am converting the contents of a textbox to hashcode. I used the built in feature for this:.GetHashCode Now once i have the hash code how do i convert it back to regular letters?
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Jun 17, 2009
I'm using this code to return some string from a tcpclient but when the string comes back it has a leading " character in it. I'm trying to remove it but the Len() function is reading the number of bytes instead of the string itself. How can I alter this to give me the length of the string as I would normally use it and not of the array underlying the string itself?
Dim bytes(tcpClient.ReceiveBufferSize) As Byte
networkStream.Read(bytes, 0, CInt(tcpClient.ReceiveBufferSize))
' Output the data received from the host to the console.'
[code]....
Len() reports the number of bytes not the number of characters in the string.
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Sep 25, 2009
I'm an undergraduate student from Singapore University, would like to enquire you on how to convert character codes to ASCII codes using visual basic. regarding the codes on how to build it as I need it for my semestral project
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Jan 7, 2012
I have thing problem here is the debugging outputs
"?uƒn74tn5187r&key=6e6e0936c4e6c48be56a72eba8964df0"
should be
"?u=83n74tn5187r&key=6e6e0936c4e6c48be56a72eba8964df0"
[code]....
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Oct 9, 2008
How to correctly convert string containing upper ASCII characters to byte array besides looping through each character and filling the array using AscW(chr)?I know I can do something like:
Code:
Dim bSourceData As Byte() = System.Text.ASCIIEncoding.GetBytes(sourcedata)
But this only works for lower ascii characters (0-127).Instead of ASCIIEncoding I can specify encoding myself (System.Text.Encoding.Getencoding(encoding).GetBytes(sourcedata)). But I have to specify correct encoding in this case, otherwise most of special characters are converted to "?". What should I do if I don't know the encoding?
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Jan 11, 2010
I am trying to make a simple program to convert ascii in its code format
Example: Chr(53) & Chr(53) & Chr(54) & Chr(100) & Chr(52)
to a readable format. I understand that this can be easily accomplished by writing in the ascii code into the code will do it but I am trying to create a more interactive method of doing it so I can copy and paste a long length of code into a textbox and have it update a label with the conversion.
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