what i want is not postmessage, because that let the app
close it self,
what i need is the way the taskmanager kill a process.
it just kill it and the killed app doesn't get message of closing.

right now i found that if i make an app child of my window,
i can then destroy it,

so that's how i'm doing it right now, make it child and kill it,

but i wonder if there is more direct way to do that,
maybe straight API ?