.net :: Extract Strings From Binary Files?
Dec 3, 2009I want to scrape string data from some binary text files that contain embedded SQL tatements. I don't need any fancy cleanup--just some way to extract the readable text
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Convert PDF Files To Binary Strings?
Jun 3, 2009I need to convert PDF files to Binary strings, the resulting string looks like this"JVBERi0xLjQNJeLjz9MNCjI1IDAgb2JqDTw8L0xpbm...."
I have a program that pulls all the PDF files in a directory, and reads using Binary Reader, but I am not getting the results I need.[code]...
How To Extract The Strings Out Of An Array Of Strings
Jun 24, 2011Dim str As String
Dim str2 As Array
str = "blabla duhduh"
str2 = str.Split(" ")
Reading Strings From A Binary File?
Jul 30, 2010I am fairly new to vb.net but was programming a long ime with vb6 I have a binary file that is a mixture of numbers (integers and doubles) and strings, such as "Programming with VB". I read the numbers using the BinaryStreamReader.ReadInt32 and BinaryStreamReader.ReadDouble, which are no problem
View 5 RepliesExtract The Strings From Html Page?
Jan 30, 2011I am working on my application that I am reading the strings through html page using with httprequest. All I am trying to achieve by find the value using with the matches which come next equals, something is like: "Address=Whateveritgoeshere". So I want to extract to get the strings which it would be: "Whateveritgoeshere"
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Address of URL
Dim URL As String = "http://mysite.com/getInfo.asp?id=" & Textbox1.Text
[code]....
However when I deug to run the application, I have got an empty returned strings. Do you know why I have got an empty returned strings?If you think that I have done something wrong then how I can only extract the strings that come next to the "Address="?
How To Extract Block Of Text Between Two Strings
Nov 3, 2010I have a block of text in a file: It is displaying as one string but the file really is set as this format:
Charges:
784.03-2560 BATTERY-TOUCH OR STRIKE
Original Bond: $0.00Current Bond: $0.00
* DOMESTIC
Original Bond: $0.00Current Bond: $0.00
Name:
I want to extract what is between Charges: and Name: to end up with just 784.03-2560 BATTERY-TOUCH OR STRIKE Original Bond: $0.00Current Bond: $0.00 * DOMESTIC Original Bond: $0.00Current Bond: $0.00 returned.
Read Binary File Containing Strings And Numeric Data?
Sep 5, 2009I'm having problem reading Binary file that has two types of data in it; Strings and numeric data in decimal format.[code]...
1. The loop doesn't stop, and it gives me "Unable to read beyond the end of the stream" Error..
2. The output isn't accurate, apart from a few random correct strings and numbers..
3. After the loop is fixed, how can i save the data to an Array or write it to a text file?. Can the be saved line by line so that the output file has the same number of lines?
4. As you can see in the code, I've tried writing data in a file, but it doesn't work.. Messagebox does show some data (even though it's not accurate), the file however doesn't contain any data..
Iphone - Correct Format For Reading And Writing Binary Strings Using Ifstream
Feb 1, 2011I'm trying to read back a string that I wrote into a binary file, but it's giving me problems and I don't know what's going on. I open and read my file using the code below:
ifstream input([filePath UTF8String], ios::in | ios::binary);
int numStringBytes;
input.read((char*)&numStringBytes, 4);
[Code]....
Iphone - Correct Format For Reading And Writing Binary Strings Using Ifstream?
Sep 24, 2010I'm trying to read back a string that I wrote into a binary file, but it's giving me problems and I don't know what's going on. I open and read my file using the code below:
ifstream input([filePath UTF8String], ios::in | ios::binary);
int numStringBytes;
input.read((char*)&numStringBytes, 4);
[code]....
There is a lot more to the file reading code, but it's proprietary and this is the part that keeps crashing. It runs fine loading the first two files, but when I try to open a third file, it crashes with EXC_BAD_ACCESS at the input.read((char*)names, numStringBytes); line. I don't see any reason that this should crash. I'm writing the binary files in VB.NET using the below code:
Dim myFS As New FileStream(savePath, FileMode.Create)
Dim encoding As New System.Text.UTF8Encoding()
Dim stringBytes() As Byte = encoding.GetBytes("++string")
[code]....
How To Read A Delimetered Line Of Strings And Ints And Extract Them For Processing
Jul 1, 2010i have the following text file (ExamMarks.txt)
John, 85, 95, 90
Micheal, 60, 75, 75
I want to extract a line and take the Name and separately and the ints separately. Then I want to print the name and the average of the numbers like this in a label:
[Code]...
How To Read A Delimited Line Of Strings And Ints And Extract Them For Processing In VB
Jul 1, 2010I have the following text file (ExamMarks.txt) John, 85, 95, 90 Micheal, 60, 75, 75
I want to extract a line and take the Name and separately and the ints separately. Then I want to print the name and the average of the numbers like this in a label: John's average is 90 Micheal's average is 70
So far I can only display what is in the text file in a label (see below):Dim FILE_NAME As String = "C:ExamMarks.txt"Dim TextLine As String If System.IO.File.Exists(FILE_NAME) = True Then
[Code]...
Extract QuickTime Files From A Resource And Convert Them Into Separate Files?
Jun 8, 2009I have a resource file for a program, and i have determined that the resource file just a big string of files glued together whole, i know that the movies contained in the file are quicktime mov. Where can i find information on the quicktime header? and how can i determine the length of a file once i find it?
View 1 RepliesBinary Files And Backgrounworker?
Nov 27, 2009I used backgroundworker to receive file segments from a server, it taking the segments and save them directly to a binary file. the problem is,I using a global variable to store the "FreeFile()" number.when "backgroundworker" receive "START" it do F = FreeFile()
when it receive "Segment", it should append to that file, but the problem is ... backgroundworker no more recognize the file (which its identifier saved in global variable F) and telling "Bad File"?!
whats the soultion?I think about opening the file and close it each time (not leave the connection to the file available). But I didn't figure out how to append to Binary files, It always replace their contents. and If I use "Append" option it corrupt the file!
How To Read Binary Files
Jan 10, 2010i tried out this [code]i can create and write in the .bin file but how to read it then?
View 20 RepliesMerge Two PDF / Binary Files?
Oct 19, 2010For some reason the last PDF file to be written to the "final document" is the only PDF File that is visible when the "final document" is open. However, all of the bytes are accounted for in the file size...so for example: file1 = 60 bytes and file2 = 49 bytes. The final document has 109 bytes but only contains file2 when viewed in the pdf viewer.
[code]...
Extract Txt.gz Files?
Oct 16, 2010I was wondering what code could I use to extract .txt.gz files?
I believe vb.net does not have a "extracting" system
How To Check A Validity Of Binary Files
Jan 18, 2011The program photographs people and save it to the database (SQL Server 2005 VARBINARY(MAX)) .Sometimes we get a bad picture means a binary file looks like '0X00' or somethng like that and when we try to display the picture we get an error. How can I check via VB.NET the validity of the binary file before saving it to the database Best Regards, Uri Dimant SQL Server MVP [URL]
View 3 RepliesRead Arrays From Binary Files?
Oct 2, 2011How can I read arrays from Binary Files?
View 9 RepliesRead/Write Binary Files?
Jan 30, 2012I have this code which works well:
Public Function LoadBinaryFile(strFilename As String) As Byte()
Using fsSource As FileStream = New FileStream(strFilename, FileMode.Open, FileAccess.Read)
' Read the source file into a byte array.
[code].....
Extract Icons From Files?
Oct 28, 2011i'm developing an application that extracts all the icons of a .exe file or a .ico file. the ExtractAssociatedIcon in System.Drawing.Icon only do this for the first icon which is 16x16. I would be able to extract the other formats like 64x64 or 128x128. I know that there is a Windows API that may help me, but i don't know how to call its methods or even how to use that.
View 2 RepliesExtract Text Files From A Dll / Exe?
Aug 31, 2009How can I extract text files from a dll or exe?
View 3 RepliesMerge/extract Two Files?
Mar 27, 2010i found this code to merge two two files and i'm trying to do the reverse of it. do the reverse of this function:
strDest("f1.exe")
strSource("f2.jpg")
Private Sub AppendFile(ByVal strSource As String, ByVal strDest As String)
[Code]....
VS 2008 Extract Zip Files?
Dec 30, 2009I am currently using a open source .dll to extract zip files but I was told .NET has this functionality as well. I can't find it anywhere though. Do I have to add it to the reference folder manually or something?
View 6 RepliesBinary Files - Read Characters Until 0 Found
Sep 23, 2011I am trying to make a program in Visual Basic 2010 that should do the following:
-Open file as binary
-Start with position 57 and read the following characters until a 0 is found, print the whole name
Inside the binary file, all the files' names end with 0 (which should not be printed), example:
B000000.dat0
eft.dat0
G000000000.b70
For the above examples, the names that should be printed are B000000.dat, eft.dat, G000000000.b7 respectively. The code I wrote is below. The problem is that i am not sure how to read the name until the 0 is found since the names are variable in length and so are the extensions(dat, b7). Also some names have 0 in them which makes things difficult.
Using gs As New FileStream(fileName, FileMode.Open)
gs.Position = 57
Using gr As New BinaryReader(gs)
For x As Int16 = 57 To 70
Dim textvar(x) As String
textvar(x) = gr.ReadChar
text3 = textvar(x) & (gr.ReadChar)
Next
End Using
End Using
Convert Visual Basic 3 Binary Files?
Jun 24, 2009I wrote a programme about 12 years ago in visual basic 3.Since then I have moved interstate and changed jobs quite a few time and lost the original Visual Basic 3 discs.Visual Basic 3 saved the files in a binary format that has not been used in any other version of Visual Basic. So now I cannot read or modify the files.
View 3 RepliesHow To Read All Files In Binary Mode And Put Into ListBox
May 14, 2011Using fs As New FileStream("C: estsomefilename.ext", FileMode.Open)Using rdr As New BinaryReader(fs) fs.Seek(225, SeekOrigin.Begin)Dim b() As Byte = rdr.ReadBytes(32)Dim s As String = Encoding.UTF8.GetString(b)
End Using
End Using
End Sub
Is There Any Extension Other Than .data To Save Binary Files
Apr 14, 2009I search but I didn't find the answer all of them explain how I use binary files only
View 2 RepliesRead/Write Binary Files Overflow?
Feb 24, 2012Here is my code:
Public Function ReadBinaryFileLarge(strFilename As String) As Byte()
Dim position As Integer = 0
Dim bufferSize As Integer = 4096
[Code].....
Is this the correct way to go about this problem? If not, how should I attack it?
Vb6 Double Versus .net Doubles In Binary Files?
Oct 1, 2011I wrote some software in Vb6 a long while ago and this program creates a datafile. This datafile stores variables like doubles, ints, arrays etc, using the Get/Put methods from VB6. This all worked great for vb6.I am now starting to rewrite this tool in .net and find that the binaryreader as well as the other fileopen methods do not convert the doubles correctly. So as I rewrite the software I still want to read the old datafiles just like before.if I use a byte array and read 8 bytes, the bytes read are identical in Vb6 and vb.net. We are talking about reading an existing old binary file created by vb6.
for example the number 3, stored as a double has a 8 byte array that looks like this:
[0][0][0][0][0][0][0][5] in vb6.
in vb.net if you use the bitconverter.getbytes(cdbl(3)) you get
[0][0][0][0][0][0][8]64]
in vb6 the first array is converted to the # 3 correctly.in vb.net the array is converted to something way way off.
Embedded Resource - How To Extract Files
Dec 14, 2009I want to create a patcher/installer type program. I have 3 files that need to be embedded or stored in a file. Two files need to be extracted when user clicks a button and one of those two files need to be run with a parameter when the button is clicked and last file needs to be extracted when program closes down. All 3 files need to be able to be updated in the program.
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