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TICKIT_TER...E_SIGWINCH(3)  Library Functions Manual  TICKIT_TER...E_SIGWINCH(3)

NAME
     tickit_term_observe_sigwinch - react to the SIGWINCH signal

SYNOPSIS
     #include <tickit.h>

     void tickit_term_observe_sigwinch(TickitTerm *tt, bool observe);

     Link with -ltickit.

DESCRIPTION
     tickit_term_observe_sigwinch()  controls  a  setting  on the TickitTerm in-
     stance that allows it to be informed when the process receives  a	SIGWINCH
     signal, meaning that the controlling terminal may have changed size.

     When  this flag is enabled on at least one terminal instance, a handler for
     the SIGWINCH signal is automatically installed by libtickit itself. On  re-
     ceipt of the signal the handler will mark a flag on any TickitTerm instance
     that is observing it to indicate that the window may have changed size. The
     next  time  these	instances  invoke any of several input-related functions
     (listed below), this flag will cause the function to first perform the  ac-
     tions  of	tickit_term_refresh_size(3). This deferred handling ensures that
     the TICKIT_EV_RESIZE event is only invoked at a time when	the  application
     is expecting input events, and not asynchronously during the signal handler
     itself.

     Note  that  use of this ability requires giving control of the process-wide
     SIGWINCH signal to the libtickit library. If  this  is  not  suitable,  the
     process should arrange to invoke tickit_term_refresh_size() at an appropri-
     ate time by some other mechanism.

EVENT-DEFERRAL FUNCTIONS
     *	    tickit_term_input_push_bytes(3)

     *	    tickit_term_input_readable(3)

     *	    The tickit_term_input_check_timeout_msec(3) family

     *	    The tickit_term_input_wait_msec(3) family

SEE ALSO
     tickit_term_build(3),			    tickit_term_refresh_size(3),
     tickit_term_bind_event(3), tickit_term(7), tickit(7)

						      TICKIT_TER...E_SIGWINCH(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=tickit_term_observe_sigwinch&sektion=3&manpath=FreeBSD+Ports+15.1.quarterly>

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