NAME

       al_get_haptic_gain - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro.h>

              double al_get_haptic_gain(ALLEGRO_HAPTIC *hap)

DESCRIPTION

       Returns  the  current gain of the device.  Gain is much like volume for sound, it is as if every effect’s
       intensity is multiplied by it.  Gain is a value between 0.0 and 1.0.  Only works correctly if al_get_hap‐
       tic_capabilities(3alleg5)  returns  a  value  that  has   ALLEGRO_HAPTIC_GAIN(3alleg5)ALLEGRO_HAPTIC_CON‐
       STANTS(3alleg5)  set.   If  this is not set, this function will simply return 1.0 and all effects will be
       played without any gain influence.

SINCE

       5.1.8

              [Unstable API]: Perhaps could be simplified due to limited support for all  the  exposed  features
              across all of the platforms.  Awaiting feedback from users.

Allegro reference manual                                                             al_get_haptic_gain(3alleg5)