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Many QProcesses - is it correct?

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  • T Offline
    T Offline
    TomNow99
    wrote on last edited by TomNow99
    #1

    Hi,

    I would like to create many QProcesses. After finish I would like to destroy them. And I have code like this:

    for(int i = 0; i<10 ; i++ )
    {
       QProcess * proc = new QProcess(this);
       connect(proc, static_cast<void(QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished), this, &MainWindow::mySlot);
       proc->start("powershell command");
    }
    
    
    And slot:
    
    void MainWindow::mySlot(int exitCode, QProcess::ExitStatus exitStatus)
    {
        QProcess * proc = qobject_cast<QProcess *>(sender());
        if( proc ) {
            delete proc;
        }
    }
    

    Is it correct?

    JonBJ 1 Reply Last reply
    0
    • T TomNow99

      Hi,

      I would like to create many QProcesses. After finish I would like to destroy them. And I have code like this:

      for(int i = 0; i<10 ; i++ )
      {
         QProcess * proc = new QProcess(this);
         connect(proc, static_cast<void(QProcess::*)(int, QProcess::ExitStatus)>(&QProcess::finished), this, &MainWindow::mySlot);
         proc->start("powershell command");
      }
      
      
      And slot:
      
      void MainWindow::mySlot(int exitCode, QProcess::ExitStatus exitStatus)
      {
          QProcess * proc = qobject_cast<QProcess *>(sender());
          if( proc ) {
              delete proc;
          }
      }
      

      Is it correct?

      JonBJ Offline
      JonBJ Offline
      JonB
      wrote on last edited by
      #2

      @TomNow99
      I think fine as a principle. But proc->deleteLater() preferred over delete proc.

      1 Reply Last reply
      2

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