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install_joystick(3alleg4) [opendarwin man page]

install_joystick(3alleg4)					  Allegro manual					 install_joystick(3alleg4)

install_joystick - Initialises the joystick. Allegro game programming library. SYNOPSIS
#include <allegro.h> int install_joystick(int type); DESCRIPTION
Installs Allegro's joystick handler, and calibrates the centre position values. The type parameter should usually be JOY_TYPE_AUTODETECT, or see the platform specific documentation for a list of the available drivers. You must call this routine before using any other joystick functions, and you should make sure that all joysticks are in the middle position at the time. Example: textout_centre_ex(screen, font, "Center the joystick and press a key", SCREEN_W/2, SCREEN_H/2, red_color, -1); readkey(); if (install_joystick(JOY_TYPE_AUTODETECT) != 0) abort_on_error("Error initialising joystick!"); RETURN VALUE
Returns zero on success. As soon as you have installed the joystick module, you will be able to read the button state and digital (on/off toggle) direction information, which may be enough for some games. If you want to get full analogue input, though, you need to use the cal- ibrate_joystick() functions to measure the exact range of the inputs: see below. SEE ALSO
remove_joystick(3alleg4), num_joysticks(3alleg4), load_joystick_data(3alleg4), calibrate_joystick(3alleg4), calibrate_joy- stick_name(3alleg4), poll_joystick(3alleg4), exjoy(3alleg4) Allegro version 4.4.2 install_joystick(3alleg4)

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exjoy(3alleg4)							  Allegro manual						    exjoy(3alleg4)

exjoy - Detecting, calibrating and using joystick input. Allegro game programming library. SYNOPSIS
#include <allegro.h> Example exjoy DESCRIPTION
This program uses the Allegro library to detect and read the value of a joystick. The output of the program is a small target sight on the screen which you can move. At the same time the program will tell you what you are doing with the joystick (moving or firing). SEE ALSO
BITMAP(3alleg4), END_OF_MAIN(3alleg4), SCREEN_H(3alleg4), SCREEN_W(3alleg4), allegro_error(3alleg4), allegro_init(3alleg4), allegro_mes- sage(3alleg4), blit(3alleg4), calibrate_joystick(3alleg4), calibrate_joystick_name(3alleg4), circle(3alleg4), clear_bitmap(3alleg4), clear_keybuf(3alleg4), create_bitmap(3alleg4), default_palette(3alleg4), destroy_bitmap(3alleg4), drawing_mode(3alleg4), font(3alleg4), install_joystick(3alleg4), install_keyboard(3alleg4), joy(3alleg4), key(3alleg4), keypressed(3alleg4), num_joysticks(3alleg4), pal- ette_color(3alleg4), poll_joystick(3alleg4), putpixel(3alleg4), readkey(3alleg4), screen(3alleg4), set_gfx_mode(3alleg4), set_pal- ette(3alleg4), textout_centre_ex(3alleg4), textprintf_centre_ex(3alleg4), textprintf_ex(3alleg4) Allegro version 4.4.2 exjoy(3alleg4)
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