Hello high_flyer,

i have tryed what you said, but it doesn´t work, it happens the same, if i press the stop button quickly the function calls save dialog, if i cancel the save dialog, quickly, another save dialog is shown, the stopall is called several times.

I delete QTimer and QTimeLine, in the stopall function, but as this function is called several times, it occurs an error because is trying to delete QTimer that it doesn´t exists.

Another idea please!!