1joystick_update(3)            Svgalib User Manual           joystick_update(3)
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NAME

6       joystick_update - query joysticks for status changes
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SYNOPSIS

9       #include <vgajoystick.h>
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11       int joystick_update(void);
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DESCRIPTION

15       queries  all  currently opened joysticks for position changes and calls
16       the appropriate event handlers.
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18       A non-zero value is returned if and only if  any  joystick  reported  a
19       position change. In more detail the logical and of the return value and
20       (1 << joydev) is non-zero if this joystick status changed.
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CAVEATS

24       This function is only available in ELF  versions  of  svgalib.  Due  to
25       backwards  compatibility  issues  it  cannot  be used with shared a.out
26       libs.
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SEE ALSO

30       svgalib(7), vgagl(7), libvga.config(5), joytest(6),  mjoytest(6),  joy‐
31       stick_init(3), joystick_close(3), joystick_sethandler(3), joystick_set‐
32       defaulthandler(3),  joystick_getnumaxes(3),  joystick_getnumbuttons(3),
33       joystick_getaxis(3),  joystick_getbutton(3),  joystick_button1(3), joy‐
34       stick_getb1(3), joystick_x(3), joystick_getx(3).
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AUTHOR

38       The svgalib joystick handler  was  mostly  done  by  Daniel  Engstr\"om
39       <daniel.engstrom@riksnett.no>.  Multiple joystick, VC switching support
40       and code to  glue  it  into  svgalib  by  Michael  Weller  <eowmob@exp-
41       math.uni-essen.de>. Part of the code is based on code from C. Smith and
42       Vojtech Pavlik.
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46Svgalib 1.3.0                    14 April 1998              joystick_update(3)