''

def keyReleaseEvent(self, event):

    key = event.key()
    self.key_pressed = key
    keys = [Qt.Key_Right, Qt.Key_Left, Qt.Key_Down, Qt.Key_Up, Qt.Key_Escape, Qt.Key_PageUp, Qt.Key_PageDown, Qt.Key_Home, Qt.Key_End, Qt.Key_Menu]
    if (key in keys):
        if (not self.is_fade_running()):
            self.sig_key_pressed.emit()
