How to check if a program is running?

[raphaelf]

hi everybody,

what is wrong:

.h:

#include "ui_mainwindow.h"
#include <QProcess>
 
 
 
class MainWindow : public QMainWindow
    {
        Q_OBJECT
 
    public:
        MainWindow();
 
 
     public slots:
        void yourSlot(int *exitCode, QProcess::ExitStatus *exitSatus);
 
 
    private:
        Ui::PushFast ui; 
    };

#include "ui_mainwindow.h"
#include <QProcess>



class MainWindow : public QMainWindow
    {
        Q_OBJECT

    public:
        MainWindow();
	
        
     public slots:
        void yourSlot(int *exitCode, QProcess::ExitStatus *exitSatus);
        

    private:
        Ui::PushFast ui; 
    };

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.cpp:

MainWindow::MainWindow()
{
	ui.setupUi(this);
	QProcess *process = new QProcess(this); 
  	connect(*process, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(yourSlot(int, QProcess::ExitStatus))); 
 
}
 
void MainWindow::yourSlot(int *exitCode, QProcess::ExitStatus *exitSatus)
{
	QMessageBox::information(this, "", "process finished");
}
 
void MainWindow::startpsexec()
{
	QString username = ui.username_le->text();
	QString password = ui.password_le->text();
	QString hostname = ui.hostname_le->text();
	QString software = ui.software_cb->currentText();
	QString path = ui.source_path_cb->currentText();
 
 
 
	//Installieren 	
 	//QProcess *process = new QProcess(this);    
	QString zeichen = "\"";
	QString program = "psexec.exe \\\\" + hostname + " -u " + hostname + "\\" + username + " -p " + password + " -i -c -e -f -n 6 " + zeichen + path + "\\" + software + zeichen;
	process->start(program); 
	QString information = process->readAllStandardError();
 	information.replace(0, 126, "");
 	information.replace("with error code 0.", "");
 
}

MainWindow::MainWindow()
{
	ui.setupUi(this);
	QProcess *process = new QProcess(this); 
  	connect(*process, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(yourSlot(int, QProcess::ExitStatus))); 
 	
}

void MainWindow::yourSlot(int *exitCode, QProcess::ExitStatus *exitSatus)
{
	QMessageBox::information(this, "", "process finished");
}

void MainWindow::startpsexec()
{
	QString username = ui.username_le->text();
	QString password = ui.password_le->text();
	QString hostname = ui.hostname_le->text();
	QString software = ui.software_cb->currentText();
	QString path = ui.source_path_cb->currentText();


	
	//Installieren 	
 	//QProcess *process = new QProcess(this);    
	QString zeichen = "\"";
	QString program = "psexec.exe \\\\" + hostname + " -u " + hostname + "\\" + username + " -p " + password + " -i -c -e -f -n 6 " + zeichen + path + "\\" + software + zeichen;
	process->start(program); 
	QString information = process->readAllStandardError();
 	information.replace(0, 126, "");
 	information.replace("with error code 0.", "");
 
}

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[jacek]

process->start(program);
QString information = process->readAllStandardError();

You have to give some time to psexec, before you read what it has written. Either connect so readyReadStandardError() signal or use waitForFinished() (note that the latter will hang your application, so it's suitable only if psexec works really fast).

[wysota]

hi everybody,

what is wrong:

public slots:
        void yourSlot(int *exitCode, QProcess::ExitStatus *exitSatus);

public slots:
        void yourSlot(int *exitCode, QProcess::ExitStatus *exitSatus);

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connect(*process, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(yourSlot(int, QProcess::ExitStatus)));

connect(*process, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(yourSlot(int, QProcess::ExitStatus)));

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Those signatures don't match.

[raphaelf]

Hi all,

thanks very much it works

[nhs_0702]

Hi all,

thanks very much it works

why my source code error?

http://www.mediafire.com/?kdryz5tyozj

#include "widgetcheckprocess.h"
#include <QMessageBox>
WidgetCheckProcess::WidgetCheckProcess(QWidget *parent, Qt::WFlags flags): QMainWindow(parent, flags)
{
	ui.setupUi(this);
	qpProcess = new QProcess;
	StartProcess("I:/SoftWare_Install/wincmp-setup.exe");
	connect(qpProcess, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(SlotDetectFinish(int, QProcess::ExitStatus)));
}
WidgetCheckProcess::~WidgetCheckProcess()
{
}
void WidgetCheckProcess::StartProcess(QString qsProcessPath)
{
	qpProcess->startDetached(qsProcessPath);
	qpProcess->waitForFinished();
}
void WidgetCheckProcess::SlotDetectFinish(int *exitCode, QProcess::ExitStatus *exitSatus)
{
	QMessageBox::information(this, "", "process finished");
}

#include "widgetcheckprocess.h"
#include <QMessageBox>
WidgetCheckProcess::WidgetCheckProcess(QWidget *parent, Qt::WFlags flags): QMainWindow(parent, flags)
{
	ui.setupUi(this);
	qpProcess = new QProcess;
	StartProcess("I:/SoftWare_Install/wincmp-setup.exe");
	connect(qpProcess, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(SlotDetectFinish(int, QProcess::ExitStatus)));
}
WidgetCheckProcess::~WidgetCheckProcess()
{
}
void WidgetCheckProcess::StartProcess(QString qsProcessPath)
{
	qpProcess->startDetached(qsProcessPath);
	qpProcess->waitForFinished();
}
void WidgetCheckProcess::SlotDetectFinish(int *exitCode, QProcess::ExitStatus *exitSatus)
{
	QMessageBox::information(this, "", "process finished");
}

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#ifndef WIDGETCHECKPROCESS_H
#define WIDGETCHECKPROCESS_H
 
#include <QtGui/QMainWindow>
#include "ui_widgetcheckprocess.h"
#include <QProcess>
class WidgetCheckProcess : public QMainWindow
{
	Q_OBJECT
public:
	QProcess *qpProcess;
	WidgetCheckProcess(QWidget *parent = 0, Qt::WFlags flags = 0);
	~WidgetCheckProcess();
	void StartProcess(QString qsProcessPath);
public slots:
		void SlotDetectFinish(int *exitCode, QProcess::ExitStatus *exitSatus);
//signals:
//		void finished(int exitCode, QProcess::ExitStatus exitStatus);
private:
	Ui::WidgetCheckProcessClass ui;
};
 
#endif // WIDGETCHECKPROCESS_H

#ifndef WIDGETCHECKPROCESS_H
#define WIDGETCHECKPROCESS_H

#include <QtGui/QMainWindow>
#include "ui_widgetcheckprocess.h"
#include <QProcess>
class WidgetCheckProcess : public QMainWindow
{
	Q_OBJECT
public:
	QProcess *qpProcess;
	WidgetCheckProcess(QWidget *parent = 0, Qt::WFlags flags = 0);
	~WidgetCheckProcess();
	void StartProcess(QString qsProcessPath);
public slots:
		void SlotDetectFinish(int *exitCode, QProcess::ExitStatus *exitSatus);
//signals:
//		void finished(int exitCode, QProcess::ExitStatus exitStatus);
private:
	Ui::WidgetCheckProcessClass ui;
};

#endif // WIDGETCHECKPROCESS_H

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#include "widgetcheckprocess.h"
#include <QtGui/QApplication>
 
int main(int argc, char *argv[])
{
	QApplication a(argc, argv);
	WidgetCheckProcess w;
	w.show();
	return a.exec();
}

#include "widgetcheckprocess.h"
#include <QtGui/QApplication>

int main(int argc, char *argv[])
{
	QApplication a(argc, argv);
	WidgetCheckProcess w;
	w.show();
	return a.exec();
}

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[wysota]

How to ask smart questions

[nhs_0702]

Hi all,

thanks very much it works

you can help me,why i use SIGNAL(finished(int, QProcess::ExitStatus) like you but cant run
http://www.mediafire.com/?kdryz5tyozj

[squidge]

Please re-read wysota's post and stop duplicating your posts.