I have an application that collects heart rate data and displays in in a GUI. I don't want to change anything about how the application runs, but want to save the data into a .csv file to use with data manipulation programs. The program is called BluetoothGattHeartRate. I am running the sample code found here.
My addition to the code is just
std::fstream theDump;
theDump.open("path/to/file", std::fstream::out);
if (theDump.is_open())
{
theDump.write("ImHere", 6);
}
theDump.close();
inserted into the file called HeartRateService.cpp in the Shared directory in the void HeartRateService::Characteristic_ValueChanged(GattCharacteristic^ sender, GattValueChangedEventArgs^ args) function just before the call to ValueChangeCompleted(heartRateValue);. I'm using Microsoft Visual Studio to edit and run the code, as the tutorial online says. This exact code succeeds in editing the file when run in an independent application, but it fails to open the file (I tested for this) when run in the Gatt sample code.
I don't expect that anyone has dealt with this before, but if by some miracle one of you has figured this out, please let me know how you fixed it.
Related
I'm stumped... it took me a while to track this down.. because I don't have visual C++ IDE installed on the problematic system (it is windows server 2019)... my code works fine with VS 2022 on my laptop (W11 22H2)... anyhow.. I get this exception
Cannot create a file when that file already exists
I tracked it down to this code:
const auto fileTime = fs::last_write_time(p);
apparently this function can also write to the file to modify the time.
but I'm just trying to read it... (I didn't add the arguments necessary to write)
does anyone have any idea why this error might be happening?
https://en.cppreference.com/w/cpp/filesystem/last_write_time
please note it is highly likely that sometimes the file is actually being written to when I call this code (this code is called in a loop, and so is the file that is being written by another program)
I'm having some trouble getting Matlab to run an executable file. Essentially, I have a C++ code that does some calculations and outputs these calculations to a text file; then, Matlab reads these text files and uses the calculations to makes plots and stuff.
I've been trying to get Matlab to run the C++ exe file so that, when it runs it, the output files are automatically generated and Matlab can start doing its stuff. This just allows the user to run the program quicker. I am using the system() command Like so:
system('MyCppProgram.exe');
However, when I run that, although everything compiles, nothing is outputted from CPP and I even get back something that says "ans = -1" and I have no idea what that means.
Any help would be greatly appreciated. Thank you!
Update: Result from test command.
[status, cmdout] = system('MyCppProgram.exe', '-echo');
status = -1
cmdout = ''
So I have a software program that for reasons that are beyond this post, I will not include but to put it simply, I'd like to "MOD" the original software. The program is launched from a Windows Application named ViaNet.exe with accompanying DLL files such as ViaNetDll.dll. The Application is given an argument such as ./Statup.cat. There is also a WatchDog process that uses the argument ./App.cat instead of the former.
I was able to locate a log file buried in my Windows/Temp folder for the ViaNet.exe Application. Looking at the log it identifies files such as:
./Utility/base32.atc:_Encode32 line 67
./Utilities.atc:MemFun_:Invoke line 347
./Utilities.atc:_ForEachProperty line 380
./Cluster/ClusterManager.atc:ClusterManager:GetClusterUpdates line 1286
./Cluster/ClusterManager.atc:ClusterManager:StopSync line 505
./Cluster/ClusterManager.atc:ConfigSynchronizer:Update line 1824
Going to those file locations reveal files by those names, but not ending with .atc but instead .cat. The log also indicates some sort of Class, Method and Line # but .cat files are in binary form.
Searching the program folder for any files with the extension .atc reveals three -- What I can assume are uncompiled .cat files -- files. Low and behold, once opened it's obviously some sort of source code -- with copyright headers, lol.
global ConfigFolder, WriteConfigFile, App, ReadConfigFile, CreateAssocArray;
local mgrs = null;
local email = CreateAssocArray( null);
local publicConfig = ReadConfigFile( App.configPath + "\\publicConfig.dat" );
if ( publicConfig != null )
{
mgrs = publicConfig.cluster.shared.clusterGroup[1].managers[1];
local emailInfo = publicConfig.cluster.shared.emailServer;
if (emailInfo != null)
{
if (emailInfo.serverName != "")
{
email.serverName = emailInfo.serverName;
}
if (emailInfo.serverEmailAddress != "")
{
email.serverEmailAddress = emailInfo.serverEmailAddress;
}
if (emailInfo.adminEmailAddress != null)
{
email.adminEmailAddress = emailInfo.adminEmailAddress;
}
}
}
if (mgrs != null)
{
WriteConfigFile( ConfigFolder + "ZoneInfo.dat", mgrs);
}
WriteConfigFile( ConfigFolder + "EmailInfo.dat", email);
So to end this as simply as possible, I'm trying to find out two things. #1 What Programming Language is this? and #2 Can the .cat be decompiled back to .atc. files? -- and vice versa. Looking at the log it would appear that the Application is decoding/decompiling the .cat files already to interpret them verses running them as bytecode/natively. Searching for .atc on Google results in AutoCAD. But looking at the results, shows it to be some sort of palette files, nothing source code related.
It would seem to me that if I can program in this unknown language, let alone, decompile the existing stuff, I might get lucky with modding the software. Thanks in advance for any help and I really really hope someone has an answer for me.
EDIT
So huge news people, I've made quite an interesting discovery. I downloaded a patch from the vendor, it contained a batch file that was executing ViaNet.exe Execute [Patch Script].atc. I quickly discovered that you can use Execute to run both .atc and .cat files equally, same as with no argument. Once knowing this I assumed that there must be various arguments you can try, well after a random stroke of luck, there is one. That being Compile [Script].atc. This argument will compile also any .atc file to .cat. I've compiled the above script for comparison: http://pastebin.com/rg2YM8Q9
So I guess the goal now is to determine if it's possible to decompile said script. So I took a step further and was successful at obtaining C++ pseudo code from the ViaNet.exe and ViaNetDll.dll binaries, this has shed tons of understanding on the proprietary language and it's API they use. From what I can tell each execution is decompiled first then ran thru the interpreter. They also have nicknamed their language ATCL, still no idea what it stands for. While searching the API, I found several debug methods with names like ExecuteFile, ExecuteString, CompileFile, CompileString, InspectFunction and finally DumpObjCode. With the DumpObjCode method I'm able to perform some sort of dump of script files. Dump file for above script: http://pastebin.com/PuCCVMPf
I hope someone can help me find a pattern with the progress I made. I'm trying my best to go over the pseudo code but I don't know C++, so I'm having a really hard time understanding the code. I've tried to seperate what I can identify as being the compile script subroutines but I'm not certain: http://pastebin.com/pwfFCDQa
If someone can give me an idea of what this code snippet is doing and if it looks like I'm on the right path, I'd appreciate it. Thank you in advanced.
Good Day,
I have searched the Internet tirelessly trying to find an example of how to start Windows Speech Training from with in my VB.Net Speech Recognition Application.
I have found a couple examples, which I can not get working to save my life.
One such example is on the Visual Studios Fourms:
HERE
this particular example users the "Process.Start" call to try and start the Speech Training Session. However this does not work for me. Here is the exmaple from that thread:
Process.Start("rundll32.exe", "C:\Windows\system32\speech\speechux\SpeechUX.dll, RunWizard UserTraining")
What happens is I get and error that says:
There was a problem starting
C:\Windows\system32\speech\speechux\SpeechUX.dll
The specified module could not be found
So I tried creating a shortcut (.lnk) file and thought I could access the DLL this way. My short cut kind of does the same thing. In the short cut I call the "rundll32.exe" with parameters:
C:\Windows\System32\rundll32.exe "C:\Windows\system32\speech\speechux\SpeechUX.dll" RunWizard UserTraining
Then in my VB.Net application I use the "Process.Start" and try to run the shortcut.
This also gives me the same error. However the shortcut itself will start the SPeech Training session. Weird?!?
So, I then took it one step further, to see if it has something to do with my VB.Net Application and the "Process.Start" Call.
I created a VBScript, and using "Wscript.Shell" I point to the Shortcut.
Running the VBScript calls the Shortcut and low and behold the Speech Training starts!
Great! But...
when I try to run the VBscript from my VB.net Application, I get that error again.
What the heck is going on here?
Your problem likely is that your program is compiled as 32-bit and your OS is 64-bit, and thus, when you try to access "C:\Windows\System32\Speech\SpeechUX\SpeechUX.dll" from your program, you're really accessing "C:\Windows\SysWOW64\Speech\SpeechUX\SpeechUX.dll" which, as rundll32.exe is reporting doesn't exist.
Compile your program as 64-bit instead or try the pseudo directory %SystemRoot%\sysnative.
Also, instead of rundll32.exe, you may want to just run SpeechUXWiz.exe with an argument.
Eg.
private Process StartSpeechMicrophoneTraining()
{
Process process = new Process();
process.StartInfo.FileName = System.IO.Path.Combine(Environment.SystemDirectory, "speech\\speechux\\SpeechUXWiz.exe");
process.StartInfo.Arguments = "MicTraining";
process.Start();
return process;
}
private Process StartSpeechUserTraining()
{
Process process = new Process();
process.StartInfo.FileName = System.IO.Path.Combine(Environment.SystemDirectory, "speech\\speechux\\SpeechUXWiz.exe");
process.StartInfo.Arguments = "UserTraining";
process.Start();
return process;
}
Hope that helps.
Read more about Windows 32-bit on Windows 64-bit at http://en.wikipedia.org/wiki/WoW64
or your problem specifically at http://en.wikipedia.org/wiki/WoW64#Registry_and_file_system
If you are using a 64bit OS and want to access system32 folder you must use the directory alias name, which is "sysnative".
"C:\windows\sysnative" will allow you access to system32 folder and all it's contents.
Honestly, who decided this at Microsoft is just silly!!
I have a QT C++ application that runs the Octave program using QProcess. I am able to communicate with it by reading the standard output/error and writing to it's standard input using write method (for example: octave->write("5 + 5\n");).
As I told you I get response from octave (from the above example I get "ans = 10").
However, when the command I write to Octave standard input has a "plot" (for example, a simple plot([1 2 3 4 5]);), the actual graphic is never shown. I know Octave runs gnuplot, I have it installed, and gnuplot_x11 too. I even change the gnuplot binary path in my Octave process by executing gnuplot_binary("/usr/bin/gnuplot"); from MY APPLICATION. I know it runs good because if I retrieve the new value I get it right. But I don't know why Octave doesn't show the graphic.
Here I start octave:
QStringList arguments;
arguments << "--persist";
octave->setProcessChannelMode(QProcess::MergedChannels);
octave->start("/usr/bin/octave", arguments);
Here I write commands to octave process:
if (octave->state() == QProcess::Running) {
QString command = widget.txtInput->toPlainText();
if (command.isEmpty()) {
return;
}
command += "\n";
octave->write(command.toAscii());
}
With this I print the octave response to a text edit:
widget.txtOutput->append(octave->readAll() + "\n");
And finally, I use this when the octave process starts:
QString gnuplot_path(tr("\"/usr/bin/gnuplot\""));
QString gnuplot_cmd(tr("gnuplot_binary(%1)\n").arg(gnuplot_path));
octave->write(gnuplot_cmd.toAscii());
I will appreciate any help you could give me.
Thanks in advance.
Octave, like Matlab, can be run in batch mode to perform computations without graphical UI. I assume that Octave detects that it is not run from an interactive session, and therefore automatically goes into batch mode. You would expect Octave to suppress graphical output (e.g. gnuplot output) when being in batch mode.
Try to force Octave into interactive mode by using the --interactive command line option:
http://www.gnu.org/software/octave/doc/interpreter/Command-Line-Options.html
I know you probably already solved your problem but this might be helpful for other...
You can try to add a command to save your plot in a temporary folder in your octave request.
Then display the graph in your ap