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keyboard_update(3)	      Svgalib User Manual	    keyboard_update(3)

NAME
       keyboard_update,	keyboard_waitforupdate - process raw keyboard events

SYNOPSIS
       #include	<vgakeyboard.h>

       int keyboard_update(void);
       void keyboard_waitforupdate(void);

DESCRIPTION
       These  routines	check  the keyboard buffer for any raw keyboard	events
       and  do	the  necessary	updates	 to  the  internal  buffers  of	  key-
       board_clearstate(3) and keyboard_keypressed(3).

       When  there are no such events, keyboard_update() returns 0 immediately
       (non-zero else) whereas keyboard_waitforupdate()	blocks and waits until
       an event	occurs.

       vga_waitevent(3)	allows to wait for keyboard and	other  events  at  the
       same time.

SEE ALSO
       svgalib(7),  vgagl(7), libvga.config(5),	keytest(6), eventtest(6), key-
       board_seteventhandler(3), keyboard_init(3), keyboard_init_return_fd(3),
       keyboard_close(3),  keyboard_setdefaulteventhandler(3),	 keyboard_get-
       state(3),   keyboard_clearstate(3),   keyboard_translatekeys(3),	  key-
       board_keypressed(3), vga_waitevent(3)

AUTHOR
       This manual page	was edited by Michael Weller  <eowmob@exp-math.uni-es-
       sen.de>.	 The exact source of the referenced function as	well as	of the
       original	documentation is unknown.

       It is very likely that both are at least	to some	extent are due to Harm
       Hanemaayer <H.Hanemaayer@inter.nl.net>.

       Occasionally this might be wrong. I hereby asked	to be excused  by  the
       original	author and will	happily	accept any additions or	corrections to
       this first version of the svgalib manual.

Svgalib	(>= 1.2.11)		 27 July 1997		    keyboard_update(3)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=keyboard_waitforupdate&sektion=3&manpath=FreeBSD+Ports+14.3.quarterly>

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