i have a problem a in vb.net in Windows Vista Basic environment, while using the chr(0) it gives an empty string, while in windows XP chr(0) gives the following character am wonderign why in windows vista it can't result to the same thing actually it amounts to NOTHING as the result.
View 5 RepliesSo I have an ASP.Net (vb.net) application. It has a textbox and the user is pasting text from Microsoft Word into it. So things like the long dash (charcode 150) are coming through as input. Other examples would be the smart quotes or accented characters. In my app I'm encoding them in xml and passing that to the database as an xml parameter to a sql stored procedure. It gets inserted in the database just as the user entered it.
The problem is the app that reads this data doesn't like these characters. So I need to translate them into the lower ascii (7bit I think) character set. How do I do that? How do I determine what encoding they are in so I can do something like the following. And would just requesting the ASCII equivalent translate them intelligently or do I have to write some code for that?
Also maybe it might be easier to solve this problem in the web page to begin with. When you copy the selection of characters from Word it puts several formats in the clipboard. The straight text one is the one I want. Is there a way to have the html textbox get that text when the user pastes into it? Do I have to set the encoding of the web page somehow?
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I want to explicitly inform my user that they are not allowed to use any characters from the extended ascii character set (128-255). When I try to create a string of these values using the following [Code] It outputs them fine, with the exception of a bunch of blanks in certain areas(I am assuming these characters are unprintable), but I noticed that when I hover over the value of sVal in the VS, the tooltip/quickview of the value is written nicely on one line. Any ideas how to remove characters that would appear to be blank spaces (unprintable) when outputting this list?
View 4 RepliesI'm working on decoding a NMEA sentence that is a compressed 8-bit string. I'm having a very hard time of wrapping my head around the bit manipulation needed to convert this string. If someone could get me started with this it would be great.
Here is the incomming string:
!AIVDM,1,1,,A,14eG;o@034o8sd<L9i:a;WF>062D,0*7D
and here is the expected output:
[code]...
will an program built on windows 7 using vs 2008 or 2005 have the compatibility with windows xp or vista
View 5 Repliesi have created some shareware applications. I implemented the following mechanism for piracy protection. Before Windows Vista and Windows 7 i did write a dll file to the System32 folder with an encrypted license key. Also in the Registry under HKEY_LOCAL_MACHINE i inserted a registry key.
The problem is that with Windows Vista and Windows 7 due to the User Account Control (UAC) this is denied.
I want to ask : what other mechanism can be implemented ? Where should i store the encrypted key file and the registry key.
I want that the application can be installed for all users of a computer only once.
If i stored the key in the user's application data directory then another user could easily just install it under another user account. Also i do not want to put the key file in the application directory because that would be too obvious.
note that i create the registry key with my application and not with the installer.
I have a program that modifies the boot.ini on windows XP.However the problem is windows Vista went to the BCDEDIT utility the boot.ini was eliminated. The BCDEDIT tool is a command line tool.IS there a way to program vb.net to use bcdedit and pass several different commands to it so that I can make the same changes in Vista I want to change to these values from there defaults
Timeout =1
and
noexecute = AlwaysOff
How can I do this ?
i want to give windows vista look to my windows forms. I am using vb.net 2005.
View 2 Repliesright now, im using Windows Vista.. in Windows XP, deleting a file is working with this code System.IO.File.Delete("C: estdelete.jpg") But in Windows Vista, i encounter this message: Access to the path 'C: estdelete.jpg' is denied. why its happening? what is the solution for this?
View 14 RepliesI've created a simple dll with VB.NET for a web application, which opens a SaveDialog and write some ASCII-signs to a txt-file. It is working fine in XP. But when I test this dll in Vista I can not save this file:When I try to save in the directory "My own files" I can see this file in the file dialog, but I can not see this file in the explorer. In other directories I get a permission error.I've red, thatI can give e.g. admin-permission to allow writing a file, but I can give this permission only to an exe-file.
I tried some tests with the filestream like below
Dim fs As FileStream = New FileStream(strCSVDateiName, FileMode.Create, FileAccess.Write, FileShare.ReadWrite)
[code].....
I have an app that I have been recoding in vb.net formerly written in VB6. In this app I use some ASCII control codes such as ACK NAK ENQ US RS EOT. The VB6 app uses the CHR() function with the proper ASCII codes to handle these but in recoding I would like to use something more meaningful and descriptive than CHR(4) for example.
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is there a way to convert characters to 7BIT ASCII with .NET?
View 3 Repliesreading special characters within my VB code. ASCII code Char(34) = " works fine but Char(60) = < and Char(62) = > are not being read.
My Code
node.FirstChild.InnerText = Chr(60) & "httpRuntime executionTimeout=" & Chr(34) & "999999" & Chr(34) & " maxRequestLength=" & Chr(34) & "2097151" & Chr(34) & "/" & Chr(62)
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I'm programming in VB.NET using Visual Studio 2008. I need to define a string literal containing the character "÷" equivalent to Chr(247). I understand that internally VS uses UTF-16 encoding, but when the source file is written to disk it contains the single byte value F7 for this character.
This source file is processed by another program that uses UTF-8 encoding by default, so it fails to interpret this character correctly, attempting to combine it with the following single-byte character. What encoding would correctly interpret the single byte F7 as the single character ÷?
Alternatively, is there a way of expressing a non-ASCII literal that uses only ASCII characters - like using some kind of escape sequence?
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.
I'm using IO.File.ReadAllLines(FileName) to read all lines from text file to array of strings at once. Problem is, text lines include ANSI characters above ASCII value 127 (Scandinavian letters e.g. " (Ascii 196), (Ascii 246) and (Ascii 233). Array is build up nicely, but all chars above ascii value 127 are not shown right. How can I use ANSI character set with .ReadAllLines to correct this problem? In VB6 with "Open Filename For Input As #1 / Line Input #1, txtLine" there wasn't any problem. OBS: This is already solved, found the answer by myself:
Dim myEncoding As Encoding = System.Text.Encoding.GetEncoding(1252) ' Windows-1252
Dim strLibrary As String() = IO.File.ReadAllLines(FileName, myEncoding)
Problem was to find right character set, which was Windows-1251 (ISO-8859-1)
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I am using StreamWriter and StreamReader in VB.NET 2008 Express to read and write ASCII text files. When I create the file and later read it, there is no problem, because I use System.Text.Encoding.UTF8 on both the write and read sides, so extended text is handled without problem. But sometimes, I have text files come in that are just straight 8 bit ASCII without the Unicode BOM... and they get a lot of junk when I try to read in anything with extended ASCII characters in it. It seems like the 8 bit extended characters are translated into multi-byte codes, and since they are filenames, of course, that doesn't work. Since the filenames just have straight 8 bit ASCII filenames. I have tried all sorts of encodings, and nothing seems to work.
The most common character that causes a problem is an "a" ... it is used in a lot of proper names. The funny thing is that sometimes is seems to workout... is there a way to read these types of text files? Some way to just tell StreamReader not to decode the text, just treat it as straight plain 8 bit ASCII text (with the old IBM PC mapping, I think). The one thing that works is to manually edit the input, replacing the extended characters with their un-accented partner and then renaming the files to match the new spelling. Maybe I should just go to read them as byte input and breaking the lines apart in my code.
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
View 3 RepliesI have made an application in VB 6.0.In this application ,i am connecting one controller through serial port to laptop.I have used MSOMM control for this purpose.Controller is sending data as a string .On VB 6.0 applicaton in laptop ,i am getting data displayed in one text boxall in ASCII code/characters.Total chatacters in string are 61.My problem is this that all 61 characters are comming in one text box.I want thateach character should come in seperate text box so that i can be able to display them individually,i.e. 61 characters and 61 text boxes.
View 2 RepliesHow 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?
I have a program written in VB.NET and I have a textbox for the RFID tag (which is in ASCII format) and then convert it to a simple text format to be saved to my database. How can I convert ASCII to plain text to save to my database?
View 1 RepliesI need to write an application for receiving data (ascii characters) from microcontroller through the serial port in three separate parts. I've created three RichTextBoxes, but I do not know which commands I need to type. In first textbox I need to receive one byte... next six bytes need to be placed in second text box, and finally last seven bytes need to be placed in third textbox.
View 11 RepliesCould anyone provide me with sample code for using a WAV file as the input to the Windows speech recognition software on my machine (Windows Vista)?
View 3 RepliesHow can I change the background of my form to look like that of Windows Mobility Center in Windows Vista?
View 2 Repliesnothing
View 2 RepliesI'm printing pdf files via the below code in a service. In Windows 7 this works really well, In Windows Vista, nothing happens at all? What am I doing wrong?
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I develop applications in Visual Basic.NET (Visual Studio 2005) for a long time on Windows Vista without problem.
Now, I'm changing my laptop, and the new has installed the Windows 7. So, I reinstalled VS 2005, taking care to install the Vista compatibility. Thus, the version of my current VS 2005 is 8.0.50727.867 (vsvista.050727-8600) SP2. And that is my problem.
When I ran the application in debug mode (F5) on Windows Vista, a windows appeared whenever there was an error, like below:
Now, on Windows 7, the application just shows a exception message in the Immediate Windows, don't showing any error window, continuing the application execution, as below:
I develop applications in Visual Basic.NET (Visual Studio 2005) for a long time on Windows Vista without problem.Now, I'm changing my laptop, and the new has installed the Windows 7. So, I reinstalled VS 2005, taking care to install the Vista compatibility. Thus, the version of my current VS 2005 is 8.0.50727.867 (vsvista.050727-8600) SP2. And that is my problem.When I ran the application in debug mode (F5) on Windows Vista, a windows appeared whenever there was an error, like below: Now, on Windows 7, the application just shows a exception message in the Immediate Windows, don't showing any error window, continuing the application execution, as below [code]
View 2 RepliesI have a program that works in Windows XP Pro, Visual Basic 2005 and Excel 2007 that does not work in Windows Vista, Visual Basic 2005 and Excel 2007.The program takes Excel data from an already opened Workbook on the desktop and moves it to the Visual Basic program.The error occurs when I try to open the Excel Application in Visual Basic:[code]Is there a different code to define an Application in Vista?The "Open" Application will not work on a Excel App already on the desktop.
View 1 Repliesi compile my form with the below code when i run it on vista work fine without any problem but when i try to run in on XP cant run... that happened with any XP machine.[code]when i run my exe to other Vista machines work fine... but on xp NO.
View 1 Replies