UltraGrid/gui/QT/main.cpp

#include <QApplication>
#include <QString>
#include <QStringList>
#include <QProcess>
#include <QCoreApplication>
#include <QMessageBox>

#include "ultragrid.h"

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QStringList args = QCoreApplication::arguments();
    QString ultragridExecutable;
    QProcess process;

    int index = args.indexOf("--with-uv");
    if(index != -1 && args.size() >= index + 1) {
        //found
        ultragridExecutable = args.at(index + 1);
    } else {
        ultragridExecutable = "uv";
    }

    process.start(ultragridExecutable);
    if(process.waitForStarted(1000) == false) {
        QMessageBox msgBox;
        msgBox.setText(ultragridExecutable + " doesn't seem to be executable.");
        msgBox.setInformativeText("Please install uv (UltraGrid binary) to your system "
                                  "path or supply a '--with-uv' parameter.\n\n"
                                  "Please check also if the binary is executable.");
        msgBox.setIcon(QMessageBox::Critical);
        msgBox.exec();
        return 1;
    }

    UltraGridMainWindow *window = new UltraGridMainWindow;

    window->show();
    return app.exec();
}