QSA Workbench - Win7 - Starting a .exe

rodneyjerkins

Hello!

I am working with QSA Workbench Version 1.1.5 and my OS is Windows 7 64bit. I am writing a little program and I am trying to figure out how to start a external program. I have looked through the 'help' database and I found the 'Process Class Reference' chapter. I have searched through the web and also this forum for my problem but I couldnt find a solution that was really helping me.

What I want to do:
All I want to do is start a .exe file with my little program. My problem is that I am not quite sure about the syntax etc... At the moment I am trying the following:
@ var process = new Process();
var path = "c:\Users\Blackbox\AppData\Roaming\MATLAB";
process.workingDirectory = path;
var arg = path + "\inverse.exe";
process.start(arg);@

I just dont know how to call the .exe file. Do I need the process ID (pid) of my .exe in order to start it? As you can see I am helpless right here. I appreciate any type of help...

Thanks in advance!

andre

Are you sure that the \ in the string doesn't need to be escaped? Usually, literal backslashes need to be doubled. Note that in Qt, you can use forward slashes internally everywhere on every platform.

rodneyjerkins

Hey,

thanks for your fast reply! Here is what I tried now:

@var process = new Process();
var path = "c://Users//Blackbox//AppData//Roaming//MATLAB//";
process.workingDirectory = path;
var arg = path + "inverse.exe";
process.start(arg);@

And here is the error log:
@Error: loadflow : 183
TypeError. No matching overload found. Following overloads are possible:
start()
start(QStringList*)
Callstack:
loadflow(loadflow:183) (global context)@

Note that loadflow is the name of my program. What am I doing wrong? I simply want to start the .exe.

andre

Now you're doing both the doubling and the forward slash. It's either... or..., not both.

I don't know much about QSA, so I can't help you with the actual method call. I have no idea where that is documented. I'd think that the QStringList is a list of arguments, and that you need some other way to set the path of the executable to run in the Process object, but I can't be sure about that without docs.

rodneyjerkins

Finally, I got it.....

Here is the working code:
@var process = new Process();
var arg = new Array();
arg[0] = "inverse.exe";
process.arguments = arg;
process.start();@

Works just fine. Thanks for your help Andre!