Is there any way to take data from hyperterminal (whatever it has recevied from COM port) and give it to OS (windows).
For example, I want to write data which is coming from COM port into Microsoft Word file.
In other words, I've my own keyboard with RS323 interface and I want whatever I type is written in Microsoft Word file.
Yes, in C# you can use the SerialPort class. Here's a tutorial that goes over this: http://code.msdn.microsoft.com/windowsdesktop/SerialPort-brief-Example-ac0d5004
You will not need Hyperterminal for this as your software would do the comms instead using SerialPort.
From there I would use a StreamWriter (or something similar) to export it to a text file. You can try exporting to word but it will probably frustrate you.
Be aware that you set the relevant flowcontrol and baud rate settings that your device will require, otherwise you will experience connection issues.
Related
I have a system that automatically creates and saves documents as html. For further storage they ought to be pdfs though.
I want to avoid having to do it manually so my preferred solution would be a small executable that I can call via command line, feed it with a source and output path (and ideally further parameters) and then let it do its magic. Something in concept like this:
exampleConverter.exe "C:\source\document1.html" "C:\convertedPDFs\document1.pdf"
No UI whatsoever, no human input, no popping up and closing console.
I looked through several options, but common problems I encountered were
the software not being free for commercial use
It just being a library of code, not a ready-to-go executable / code-base you just need to compile into one
The tool needing to get installed instead of being 'portable'
I'd like to avoid having to implement any modern libraries myself, partially for simple time concearns, partially because internally our code runs in a less than modern IE & VBS context so I for see compatibility problems.
Simply triggering a precompiled executable through a generic command line inerface that I can trigger from vbs seems like the perfect solution here.
Your Windows OS program code is almost there, why not reverse input and output (makes the task easier later), with a switch or two. you can embellish that with your for /? loop to run through the current working folder, just like any other program.
Your pseudo code
exampleConverter.exe --print-to-pdf="C:\convertedPDFs\document1.pdf" --headless "C:\source\document1.html"
Working Windows native code
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --print-to-pdf="%CD%\out\document1.pdf" --headless "%CD%\in\document1.html"
Other options are available
learn.microsoft.com suggest this working snippet to run edge with parameters
wscript vbsEdge.vbs
Dim shell
Set shell = WScript.CreateObject("WScript.Shell")
shell.Run "msedge https://www.google.com --hide-scrollbars --content-shell-hide-toolbar"
So just combine the program methods. However, you need to sort out your own arguments.
For greater control then you need to step-up to heavier custom isations https://blogs.windows.com/msedgedev/2015/07/23/bringing-automated-testing-to-microsoft-edge-through-webdriver/ etc.
New to all this. Automation project: camera as input, motors as output. Using a windows PC is a requirement. I'm generating a CSV file from the camera (camera python api). Parsing the csv file, I'll move a motor until I reach a minimum value. So far so good.
I have a USB relay controller (http://www.canakit.com/Media/Manuals/UK1104.pdf) to which I want to output a signal from the PC based on the csv. Prefer to use java due to gui reqs. How do I get the csv file to output to a generated virtual serial com port over Java? The tutorial suggests using a terminal emulation program such as PuTTY, hyperterminal, realterm, absolute terminal, etc (all work for manual input), which i've never used (except putty for ssh). Do any of these have a java api? How would all this work? Should I use another language? I'd appreciate any feedback. Thanks.
Java has libraries that let you access serial ports on your computer. One such library is rxtx, and there are probably others. You can use such a library to open the serial port and then send or receive bytes from it.
Terminal programs are intended for interactive use by a human; they not generally meant to be used by another computer program.
On Mac Os, I see that all content on my application can be readable (mxml and as files).
Indeed with right clic on application, you can see all application content and so all files.
So It's very dangerous for a company to distribute air application like that.
Is a solution exist to protect those files.
Thanks
It is not possible to protect 100% your code. After all, if the computer can run it, it can be decompiled, regardless of the language. However, you can make it more difficult.
One method is to encrypt the swf as stated in another answer. But all the "attacker" needs to do is find the key and then they can decrypt all your swfs.
Another method is to use obfuscators. Obfuscators don't depend on encryption, nor they prevent decompiling, they just make it harder to understand what gets decompiled.
For example if you had a method called saveInvoice() the obfuscator would rename it to aa1() or something like that, so it would make it diffucult to guess what that function does. It basically turns everything into spaguetti code.
You can use a decompiler to see what can be obtained from a SWF file (which is alot), and play with obfuscators to see if they meet your espectations.
An example of one is http://www.kindi.com/ which I'm not endorsing btw, it just shows up quickly on google.
Although there are loads of decompilers which can read all your code. There is one guy who came up with encryption solution it might worth a try. (It's for Desktop AIR applications)
Have a look at this post: http://forums.adobe.com/message/3510525#3510525
Quoted text (in case of page being erased)
The method I use will allow you encrpyt most of your source code using
a key that is unique to every computer. The initial download of my
software is a simple air app that does not contain the actual program.
It is more like a shell that first retreaves a list of the clients mac
addresses and the user entered activation code that is created at time
of purchase. This is sent to server and logged. The activation code
is saved to a file client side. At the server the mac address and
activation key are used to create the encryption key. The bulk of the
program code is then encrypted using that key, then divided into parts
and sent back to the client. The client puts the parts back together
and saves the encrypted file. At runtime the shell finds the mac
address list and the activation key, then using same method as server
gets the encryption key and decrypts the program file. Run simple
check to make sure it loaded. For encyption i found an aes method that
works in php and javascript.
Next I use this code to load the program
var loader = air.HTMLLoader.createRootWindow(true, options, true, windowBounds);
loader.cacheResponse=false;
loader.placeLoadStringContentInApplicationSandbox=true;
loader.loadString(page);
This method makes it very difficult to copy
to another computer although since I wrote it i know there are some
weeknesses in the security but to make it harder i obv. the shell
code. It at least keeps most from pirating. However there are issues
with this that I have found. First i was using networkInfo to get the
list of mac address but this failed in a test windows XP computer.
When the wireless was off it did not return the MAC. I was not able
to recreate this in VISTA or 7. Not sure if it could happen. Was not
tested on a mac computer. To fix this (at least for windows). I
wrote a simple bat file that gets the MAC list, then converted it to
an exe which is included. This does force you to create native
installers. call the exe with this
var nativeProcessStartupInfo = new air.NativeProcessStartupInfo();
var file = air.File.applicationDirectory.resolvePath("findmac.exe");
nativeProcessStartupInfo.executable = file;
process = new air.NativeProcess();
process.start(nativeProcessStartupInfo);
process.addEventListener(air.ProgressEvent.STANDARD_OUTPUT_DATA, onOutputData);
process.addEventListener(air.ProgressEvent.STANDARD_ERROR_DATA, onErrorData);
process.addEventListener(air.NativeProcessExitEvent.EXIT, onExit);
process.addEventListener(air.IOErrorEvent.STANDARD_OUTPUT_IO_ERROR, onIOError);
process.addEventListener(air.IOErrorEvent.STANDARD_ERROR_IO_ERROR, onIOError);
put the list together in the onOutputData event using array.push and
continue on the onExit event using the findmac.exe will return the
same info every time (that i know of) beware thought that using the
native install will break the standard application update process so
you will have to write your own. My updates are processed the same way
as above. This is contents of the .bat file to get the mac list
#Echo off
SETLOCAL SET MAC = SET Media = Connected
FOR /F "Tokens=1-2 Delims=:" %%a in ('ipconfig /all^| FIND "Physical Address"') do #echo %%b ENDLOCAL
using this method makes it simple to implement at try before you by
method. at runtime if no activation code get try me version from
server instead of full version.
My application stores its data in an Access 2010 database (accdb) file. It's password protected, which means it's encrypted w/ AES-128.
I'd like to add some meta data to the file that's publically available. This way older verisons of my application can investigate the file to see if it's even worth trying to open. Otherwise, they'll just get the dreaded "Unrecognized Database Format" error, which is usually associated with file corruptions.
In Windows, you can right-click on a file, click "Properties" and see attributes under the Details tab. I'd love it if I add attributes like the version of my application that last touched the file, and maybe other details. I'd like to avoid having a different file extension for each version of my app!
Is it possible to add some public meta data to an encrypted Access 2010 database?
You can add custom database properties : http://support.microsoft.com/default.aspx?scid=kb;en-us;q178745
You can change the file extension of an encrypted Access database and change the properties for that extension. The extension .enc is fairly descriptive and does not seem to be widely used.
The file will open normally when clicked and ask for the password. The icon will be recognizably Access and the description, "Encrypted MS Access" in this case, will appear under Type in a directory listing.
With NTFS, you can add an alternate data stream (ADS):
notepad.exe z:\docs\testde.enc:Extra.txt
Reading the stream:
more < testde.enc:extra.txt
More information: http://www.think-techie.com/2010/04/alternate-data-streams.html
http://www.irongeek.com/i.php?page=security/altds
This is a tough nut to crack! An application must read information about the ACCDB, but that information can't be stored in the ACCDB because you want the read without opening the ACCDB. And you can't use the suggested file system methods because this must work under Wine on Mac (I assume from another of your questions).
The only solution I can see is to create a companion file (with same base name but different extension) to hold the metadata. So if your application wants to know about SomeDb.accdb, it would look for a file named SomeDb.metadata and read that instead.
I suggested a kludge for your earlier question ... unfortunately this is another. :-) However, it's a simple kludge and it should work ... even on Mac.
I was simply wondering how file watching algorithms are implemented. For instance, let's say I want to apply a filter (i.e., search/replace a string) to a file every time it is modified, what technique should I use? Obviously, I could run an infinite loop that would check every file in a directory for modifications, but it might not be very efficient. Is there any way to get notified directly by the OS instead? For the sake of demonstration, let's assume a *nix OS and whatever language (C/Ruby/Python/Java/etc.).
Linux has inotify, and judging from the wikipedia links, Windows has something similar called 'Directory Management'. Without something like inotify, you can only poll..
In Linux there is the Inotify subsystem which will alert you to file modification.
JavaSE 7 will have File Change Notification as part of NIO.2 updates.
There are wrappers to inotify that make it easy to use from high-level languages. For example, in ruby you can do the following with rb-inotify:
notifier = INotify::Notifier.new
# tell it what to watch
notifier.watch("path/to/foo.txt", :modify) {puts "foo.txt was modified!"}
notifier.watch("path/to/bar", :moved_to, :create) do |event|
puts "#{event.name} is now in path/to/bar!"
end
There's also pyinotify but I was unable to come up with an example as concise as the above.