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keyboard_clearstate(3) [osf1 man page]

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 keyboard_clearstate() sets this information to all keys released. You can use this for cleanup at certain places in your program. In addition svgalib resets 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), keyboard_seteventhandler(3), keyboard_init(3), key- board_init_return_fd(3), keyboard_close(3), keyboard_setdefaulteventhandler(3), keyboard_getstate(3), keyboard_keypressed(3), key- board_translatekeys(3), keyboard_update(3), keyboard_waitforupdate(3), vga_waitevent(3) AUTHOR
This manual page was edited by Michael Weller <eowmob@exp-math.uni-essen.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) 29 July 1997 keyboard_clearstate(3)

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keyboard_init(3)						Svgalib User Manual						  keyboard_init(3)

NAME
keyboard_init, keyboard_init_return_fd - initialize the keyboard to raw mode SYNOPSIS
#include <vgakeyboard.h> int keyboard_init(void); int keyboard_init_return_fd(void); DESCRIPTION
These routines initialize the keyboard to raw mode. No ASCII codes are produced, instead svgalib keeps track of each single keypress or depress. The return_fd version returns the file descriptor of the console device to allow you to do further tricks with it (though it is unclear which). The other version just returns 0 if successful. Both return -1 on error. keyboard_close(3) returns to normal operation. When in raw keyboard mode you can no longer use vga_getch(3) or vga_getkey(3) but you must use keyboard_getstate(3) or keyboard_key- pressed(3). Depending on the setting of keyboard_translatekeys(3) even in raw mode a <Ctrl>-C will cause a SIGINT. In any case svgalib will check for <Alt>-F1 - <Alt>-F10 and perform console switches accordingly. SEE ALSO
svgalib(7), vgagl(7), libvga.config(5), keytest(6), eventtest(6), keyboard_seteventhandler(3), keyboard_close(3), keyboard_update(3), key- board_waitforupdate(3), keyboard_setdefaulteventhandler(3), keyboard_getstate(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-essen.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_init(3)
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