NAME

       keyboard_keypressed - check if a key is pressed when in raw keyboard mode

SYNOPSIS

       #include <vgakeyboard.h>

       int keyboard_keypressed(int scancode);

DESCRIPTION

       When in raw keyboard mode this routine checks if the key with scancode is pressed and returns KEY_PRESSED
       or  KEY_NOTPRESSED  accordingly.  Actually  KEY_PRESSED  is  1  and KEY_NOTPRESSED is 0, s.t. you can use
       constructs like:

       if(keyboard_keypressed(SCANCODE_ENTER)) {
            /* do something */
       }

       Please note that keyboard events will only be processed when you occasionally call keyboard_update(3)  or
       keyboard_waitforupdate(3).

       keyboard_translatekeys(3)  allows  certain remap operations which make certain keys (digits, enter) which
       might have several physical keys show up under the same scancodes.

       Here are the supported scancodes. The names of the #defines originate from the US  keyboard  layout,  for
       other  countries,  they'll  refer  to  the  key in the same physical location, but the keycap will have a
       different inscription. For the list below, add SCANCODE_ in front of the names to get the right name  for
       your  C  source.  That  means, if it lists BACKSLASH below, you shall use SCANCODE_BACKSLASH as symbol in
       your program. In addition to the names below we also have SCANCODE_0  -  SCANCODE_9,  SCANCODE_KEYPAD0  -
       SCANCODE_KEYPAD9, SCANCODE_A - SCANCODE_Z, and SCANCODE_F1 - SCANCODE_F12.

       The  other  key  names  are  ESCAPE,  MINUS,  EQUAL,  BACKSPACE, TAB, BRACKET_LEFT, BRACKET_RIGHT, ENTER,
       LEFTCONTROL, SEMICOLON, APOSTROPHE,  GRAVE,  LEFTSHIFT,  BACKSLASH,  COMMA,  PERIOD,  SLASH,  RIGHTSHIFT,
       KEYPADMULTIPLY,  LEFTALT,  SPACE,  CAPSLOCK,  NUMLOCK, SCROLLLOCK, CURSORUPLEFT, CURSORUP, CURSORUPRIGHT,
       KEYPADMINUS,  CURSORLEFT,   CURSORRIGHT,   KEYPADPLUS,   CURSORDOWNLEFT,   CURSORDOWN,   CURSORDOWNRIGHT,
       KEYPADPERIOD,  LESS,  KEYPADENTER,  RIGHTCONTROL,  CONTROL,  KEYPADDIVIDE,  PRINTSCREEN, RIGHTALT, BREAK,
       BREAK_ALTERNATIVE, HOME, CURSORBLOCKUP, PAGEUP, CURSORBLOCKLEFT, CURSORBLOCKRIGHT, END,  CURSORBLOCKDOWN,
       PAGEDOWN, INSERT, and REMOVE.

SEE ALSO

       svgalib(7),    vgagl(7),   libvga.config(5),   keytest(6),   eventtest(6),   keyboard_seteventhandler(3),
       keyboard_init(3),  keyboard_init_return_fd(3),   keyboard_close(3),   keyboard_setdefaulteventhandler(3),
       keyboard_keypressed(3),     keyboard_clearstate(3),     keyboard_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_keypressed(3)