Hi friends,

I have seen some online guides on how to link between QT GUI and ros with 'publisher'.

all the guides are using   ros::init

int main(int argc, char **argv)
{
  ros::init(argc, argv,"envoyeur"); 
}

but I need to send some data to ros, when I am clicking a button.
and in the functions of the button i cant use argc, argv.

in the mainWindow.cpp:
void MainWindow::on_savePositionButton_clicked()
{
   //When I'm clicking here, i need to send some data with publisher.
}

Someone can help me please ? 

THANK YOU!





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