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keyboard_clearstate(3)	       Svgalib User Manual	  keyboard_clearstate(3)

NAME
     keyboard_clearstate - reset the state of all keys when in raw keyboard mode

SYNOPSIS
     #include <vgakeyboard.h>

     void keyboard_clearstate(void);

DESCRIPTION
     When  in  raw keyboard mode, svgalib receives press and release events from
     the kernel and keeps track which keys are currently pressed.  Calling  key-
     board_clearstate()  sets this information to all keys released. You can use
     this for cleanup at certain places in your program. In addition svgalib re-
     sets the states of all keys when a VC switch occurs  because  it  does  not
     know the current state of keys when it regains control of the console.

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_keypressed(3),	keyboard_translatekeys(3),  keyboard_up-
     date(3), keyboard_waitforupdate(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 orig-
     inal author and will happily accept any additions or  corrections	to  this
     first version of the svgalib manual.

Svgalib (>= 1.2.11)		  29 July 1997		  keyboard_clearstate(3)

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

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