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mjoytest(3)                   Svgalib User Manual                  mjoytest(3)


NAME

       mjoytest - test the svgalib joystick package in graphics mode


SYNOPSIS

       mjoytest [-j joystick] [[-m] video mode]


DESCRIPTION

       This demo program utilizes joysticks 0 and 1 in graphics mode.

       If you specify a joystick number, only this is used. The demo separates
       the screen in two parts where you can move a cursor around with the
       resp. joystick. Pressing button 2 changes the color, pressing button 1
       draws.

       It also prints the current joystick position to the screen.

       Internally the demo also shows the use of custom joystick handlers and
       how to recalibrate a joystick in graphics mode (press key <1> and <2>
       respectively.

       After the demo runs and the joysticks are initialized it is possible to
       share the joysticks with another application (as long as it releases
       the joysticks upon a VC switch as well).

       Pressing <Q> exits.


BUGS

       After a vc switch the demo occasionally hangs in vga_waitevent(3) not
       timing out (hence the joysticks block). It is not clear if it is a
       conceptional problem or bug in vga_waitevent(3) or the kernel.  Simply
       press any key to revive the demo.


NOTES

       This demo is part of svgalib and can be found in the demos/
       subdirectory of the original svgalib distribution. However, it is not
       installed in the system by default, s.t. it is unclear where you can
       find it if your svgalib was installed by some linux distribution. Even
       then, when you have the demo on your system, you probably won't have
       the sources s.t. it is only of limited use for you.

       In case of any such problem, simply get an svgalib distribution from
       the net. You even don't need to install it. Just make in the demos/
       subdirecty. As of this writing, svgalib-1.3.0.tar.gz is the latest
       version and can be retrieved by ftp from sunsite.unc.edu at
       /pub/Linux/libs/graphics and tsx-11.mit.edu at /pub/linux/sources/libs
       which will most probably be mirrored by a site close to you.


CAVEATS

       The functions used by this demo are only available in ELF versions of
       svgalib. Due to backwards compatibility issues it cannot be used with
       shared a.out libs.


SEE ALSO

       svgalib(7), vgagl(7), libvga.config(5), threed(6), accel(6),
       bg_test(6), eventtest(6), forktest(6), fun(6), keytest(6),
       scrolltest(6), speedtest(6), spin(6), testaccel(6), testgl(6),
       testlinear(6), vgatest(6), plane(6), wrapdemo(6), vgatest(6),
       joytest(6), joystick_init(3), joystick_close(3), joystick_update(3),
       joystick_sethandler(3), joystick_setdefaulthandler(3),
       joystick_getnumaxes(3), joystick_getnumbuttons(3), joystick_getaxis(3),
       joystick_getbutton(3), joystick_button1(3), joystick_getb1(3),
       joystick_x(3), joystick_getx(3).


AUTHOR

       The svgalib joystick handler was mostly done by Daniel Engstr\"om
       <daniel.engstrom@riksnett.no>.  Multiple joystick, VC switching support
       and code to glue it into svgalib by Michael Weller <eowmob@exp-
       math.uni-essen.de>. Part of the code is based on code from C. Smith and
       Vojtech Pavlik.

Svgalib 1.3.0                    14 April 1998                     mjoytest(3)

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