Re: Resizing properly without calling endwin()?

[Thomas Dickey]

On Sat, 9 Feb 2008, Ignacy Gawedzki wrote:

> So my question is the following: how can I tell ncurses that its internal
> buffer representing the physical screen is not reliable anymore and that it
> has to erase the whole screen and start drawing again from scratch, just as it
> does in the initial call to clear() but *without* restoring the previous state
> (so as to avoid showing the previous screen content) as it is done by a call
> to endwin() and refresh()?

What seems to work is to have the signal handler set a flag that the 
application checks - and to ensure that it checks the flag at the end of 
updating the screen (clear the flag before starting the update, keep 
updating as long as the flag's still set).

ncurses does this implicitly by checking the flag each time it goes into 
wgetch, and pushing another KEY_RESIZE.

--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net