What event sequence can I test for to know that a window resizing action
is finished (i.e. mouse-up in border)?
I am writing plain X code in a C program. I cannot get a mouse-up, because the border belongs to the window manager, not to me.
You can see a more detailed rant about this here.
I do not want to respond to partial resizes – I just want to know when the action is finished. Windows does have such a ‘message’.