How to run one qt application from another qt application

Question

I have one Qt application (App1). I want to run App1 from another qt application (App2). I have tried using QProcess but App1 doesnt run. Kindly help me out. I am working on RHEL 6.

     QProcess process = new QProcess();
    QString program = "/home/user1/Desktop/MyApp/App1";
    process->start(program);

From comments below Luca Carlon answer I assume that your "App1" is problem here. Could you show us some code from App1? — Kamil Klimek, Sep 28 '12 at 11:33

score 1 · Accepted Answer · answered Sep 27 '12 at 06:25

1

Try this:

int exitCode = QProcess::execute(program);
qDebug("Exit code is: %d.", exitCode);

and check what happens. This is a sync call. After you understand what is happening, change it back to async if you need it.

answered Sep 27 '12 at 06:25

Luca Carlon

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With this code, App1 execution begings but i am getting error as ERROR!! could not open : App1.ui Exit code is: 1. Although App1.ui is present in same folder – Abhishek Sep 27 '12 at 08:45
Then check the ExitStatus and ProcessError using QProcess so that you can collect more information. – Luca Carlon Sep 28 '12 at 08:03
working fine now..Thanks Is it possible to show the newly executed application inside my current class QWidget? – Abhishek Oct 01 '12 at 09:40

score 1 · Answer 2 · edited Aug 02 '14 at 08:30

1

Try this:

QProcess *p= new QProcess(this);
p->start("yourotherapp.exe",QIODevice::ReadWrite);

edited Aug 02 '14 at 08:30

benka

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answered Aug 02 '14 at 08:07

Hoàng Anh Tuấn

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How to run one qt application from another qt application

2 Answers2