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calibrate_joystick(3) Allegro manual calibrate_joystick(3) NAME calibrate_joystick - Calibrates the specified joystick. Allegro game programming library. SYNOPSIS #include <allegro.h> int calibrate_joystick(int n); DESCRIPTION Most joysticks need to be calibrated before they can provide full ana- logue input. This function performs the next operation in the calibra- tion series for the specified stick, assuming that the joystick has been positioned in the manner described by a previous call to cali- brate_joystick_name(), returning zero on success. For example, a simple routine to fully calibrate all the joysticks might look like: int i; for (i=0; i<;num_joysticks; i++) { while (joy[i].flags & JOYFLAG_CALIBRATE) { char *msg = calibrate_joystick_name(i); textprintf_ex(..., "%s, and press a key\n", msg); readkey(); if (calibrate_joystick(i) != 0) { textprintf_ex(..., "oops!\n"); readkey(); exit(1); } } } RETURN VALUE Returns zero on success, non-zero if the calibration could not be per- formed successfully. SEE ALSO install_joystick(3), calibrate_joystick_name(3), joy(3), num_joy- sticks(3), exjoy(3) Allegro version 4.4.3 calibrate_joystick(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO
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