Russian Qt Forum

C++ (Qt)
#ifndef SERVERTHREAD_H
#define SERVERTHREAD_H
 
#include <QThread>
 
class QProcess;
 
class ServerThread : public QThread
{
    Q_OBJECT
 
public:
     void run();
 
public slots:
     void kill();
     void output();
 
signals:
     void updateOutput(QString msg);
 
private:
    QProcess *process;
};
 
#endif // SERVERTHREAD_H
 

C++ (Qt)
#include "serverthread.h"
#include "Windows.h"
#include <QProcess>
#include <QTextCodec>
#include <QDebug>
void ServerThread::run()
{
    process = new QProcess(this);
    process->setProcessChannelMode(QProcess::MergedChannels);
    connect(process, SIGNAL(readyReadStandardOutput()), this, SLOT(output()));
    process->setWorkingDirectory("E:\\server");
    process->start("E:\\server\\server.bat");
    exec();
}
void ServerThread::output(){
    QByteArray bytes = process->readAllStandardOutput();
    QTextCodec *codec = QTextCodec::codecForName("IBM 866");
    QString string = codec->toUnicode(bytes);
    emit updateOutput(string);
}
 
 
void ServerThread::kill(){
    /*
     * HACK: QProcess::kill() just kills the process. Under Windows, this is
     * suboptimal because if the process was a batch file which spawned
     * other processes, those processes will be orphaned. The best way is
     * to kill the whole process tree manually. Under XP, there is an
     * internal command called TASKKILL which handles this. To do this
     * portably, we will have to iterate through the process list manually.
     */
  #ifdef Q_WS_WIN
    QString abort_cmd;
    PROCESS_INFORMATION *pinfo = (PROCESS_INFORMATION  *)process->pid();
    abort_cmd = QString("taskkill /F /T /PID %1").arg(pinfo->dwProcessId);
    QProcess pr;
    pr.execute(abort_cmd);
    qDebug()<<abort_cmd << pr.state();
  #endif
}
 

C++ (Qt)
ServerThread th;
    connect(&th,SIGNAL(updateOutput(QString)),this,SLOT(setOutput(QString))); // вывод текста с потока
    connect(pushButton_2,SIGNAL(clicked()),&th,SLOT(kill())); // сигнал кила, первый раз проходит а второй вызывает краш
    th.run();

th.run();

th.start();

C++ (Qt)
QProcess pr;
pr.execute(abort_cmd);
 

C++ (Qt)
QProcess::execute(abort_cmd);

C++ (Qt)
PROCESS_INFORMATION *pinfo = (PROCESS_INFORMATION  *)process->pid();

C++ (Qt)
#include "Windows.h"

C++ (Qt)
PROCESS_INFORMATION *pinfo = (PROCESS_INFORMATION  *)process->pid();