i have an UI external in a subpatch ; external’s appearance change according to focus/focusLost ; problem occurs when i close/reopen the window : i get few milliseconds latency (drawn focused colors) before to paint it as it should (unfocused colors) … is there a way to paint it just before to close the window ? Is there a kind of windowWillClosed notification to avoid this behavior ?

any clue welcomed ;-)

Solved.

after investigated deeper in process order,
i founded that strange behavior :

close the window :

- FocusLost method called;
- Invisible method called;

reopen it :

- Focus method called; ###???
- Paint method called;
- FocusLost method called;
- Visible method called;

i just add something like that in my paint method :

if (x->isVisible) {
paint layers;
}

all that stuff because max seems to ALWAYS send a focusGained method AND a focutLost method to my GUI before to open and close the patcher window.