关闭qt应用程序时，要杀死qprocess

Question

in my mainwindow.cpp, inside the constructor, I started a qprocess so the process(.exe) runs when I open the qt application.

Now I want to kill/close the qprocess when I close the qt application. How can I do it?

Answer 1

See the documentation for QProcess::terminate and QProcess::kill . They each have slightly different behavior. Use terminate to give the process a chance to shut down gracefully. Use kill to kill it more forcefully. In the case of terminate , you probably want to wait until the child process has finished (eg QProcess::waitForFinished ) before exiting the parent process.