How to start a process in Windows using QT?

Question

I'm trying to start a console application on Windows using QProcess's method 'start'. Official documentation says I can do it like this:

QProcess process;
process.start("C:/Windows/System32/cmd.exe");

I expect that a standard greeting message will appear in the calling application's console, but this does not happen, though the called process is running. What is wrong here?

By the way, it works as I expected it to work, when I do it using WinAPI functions. — ASDasasd Dasdasdrqw, Sep 07 '16 at 19:30
http://stackoverflow.com/questions/2622864/start-a-process-using-qprocess duplicate ? — HazemGomaa, Sep 07 '16 at 20:17

score 1 · Answer 1 · answered Sep 07 '16 at 19:30

1

use of bellow example :

QProcess *process = new QProcess(this);
QString program = "explorer.exe";
QString folder = "C:\";
process->start(program, QStringList() << folder);

also you can use of system() as bellow :

system("C:/Windows/System32/cmd.exe");

answered Sep 07 '16 at 19:30

BattleTested_закалённый в бою

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"C:\" is not a valid string literal in C++. – MrEricSir Sep 07 '16 at 20:06
What is 'this' here? I don't have any classes. I know about `system()`, but I want to use Qt's functions. – ASDasasd Dasdasdrqw Sep 08 '16 at 14:11
do you test `process->start()` in my answer? – BattleTested_закалённый в бою Sep 08 '16 at 15:06

score 1 · Answer 2 · answered Sep 07 '16 at 23:01

1

How about this static call?

QProcess::startDetached(FilePath,Arguments,StartInDir);

No need to create any objects!

answered Sep 07 '16 at 23:01

The Quantum Physicist

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Detatched works fine, but this is not what is needed. – ASDasasd Dasdasdrqw Sep 08 '16 at 14:17

How to start a process in Windows using QT?

2 Answers2