redraw while console is being resized

[determin1st]

how to make the console (conemu) re-calibrate its content size while user resizes console window?

i do polling with GetConsoleScreenBufferInfo few times in a second, but it reports the same size, which is demonstrated by this screenshot:

there is no <CR> (new line) symbol transmitted (only dots that cause line autowrap), its user holding mouse button pressed while resizing conemu window frame (width). when the mouse button is depressed, GetConsoleScreenBufferInfo reports new size and resize event is generated.

but the FAR manager and NDN are able to re-draw correctly (without demonstrated "gaps") during the resize process (before user depresses mouse button). how do they do that? do the send some WM_* message to the window or..