Reading the first four bytes of a (binary) files?


Hi there, I was wondering if there was an easy way to read the first four bytes of a file. The ones in particular I'm looking for are `49 42 53 50` ("IBSP") and `46 42 53 50` ("FBSP"), but that bit should be easy.
When you say bytes do you really mean the first four bytes or do you mean the first four numbes? I have a suspicion you mean the latter.
this is much easier to do than it sounds. if you have adobe pdf reader downloaded and installed in some format on your computer, all you have to do is follow a few quick instructions. first, you open the pdf in adobe. then, you click even if you get the binary contents, decoding it is quite the undertaking. you can find the format specs here if you want to try it, though:

[image]

[png specification: file structure](http://www.libpng.org/pub/png/spec/1.2/png-structure.html)

there are existing implementations in lua, such as [this one](https://github.com/delusionallogic/pnglua), but they don’t cove… first of all, download the zip file and then unzip or extract the file. then you will see a pdf file. if you don't understand how to do that, then please check the below button.) from here [fstrm python receiver](https://github.com/dmachard/python-framestream/blob/main/fstrm/fstrm_codec.py)

# frame streams control frame format - data frame length equals 00 00 00 00

# |||

# | data frame length | 4 bytes |

# ||… [@cssc](/u/cssc), another option would be to take the regex way.

first, it finds the index of the 5th pipe.

then, it takes the substring until that index.

give this a try:

inputstr.substring(0, regex.matches(inputstr, "\|")(4).index + 1) you need a macro. a small extract of the four sheets may be uploaded to 
  
www.speedyshare.com without password. How you do this will depend on a number of factors: since you haven't tried to explain in any detail, I'll assume you know nothing, and just give you the basics.  

  

The easiest way to do this is to read the text file into a single string, and then use the .NET framework to find the match:  


```
Dim text As String = File.ReadAllText("D:\Temp\MyFile.txt")
Dim index As Integer = text.IndexOf("hello")
If index >= 0 Then
   ' String is in file, starting at character "index"
End If
```
  

There are other ways, but that is pretty much the simplest. The answer to the question is available in the PDF file https://www.assignmentexpert.com/homework-answers/programming-answer-5048.pdf Download and install the 64-bit driver for the printer. If this is an old printer, check with the manufacturer to see if they have a 64-bit driver. start with 50 easys. if you solve those quickly, then move into mediums. hards are pretty tricky tbh i just attempt then peek answers/memorize lol