hello.
i'm using a QThread and i must emit a vtkmageData to the MainWindow to affiche an evolution of the traitement.

i must do the `emit()` in a funtion to send a few images.
i tried to the `emit()` from the function who does the traitement but it does not work.

My question is must i do the `emit` in the `run()` function or can i do it in an other function?
Thank you.