qt - Determine mouse event: hover leave parent for child widget -

qt - Determine mouse event: hover leave parent for child widget -

i have 2 widgets, parent , kid widget:

having access implementation of red widget, possible determine moment when cursor hovers out of red widget blue widget without implementing event handlers or deriving blue widget?

the reddish area has defined thickness(e.g. 5px).

imho cannot grab transition without catching 1 mouse move event reddish widget , 1 mouse move event bluish widget, since mouse can jump on screen , may not move in continuous fashion.

qt qt5 qwidget qevent qmouseevent