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al_set_haptic_gain(3)	   Library Functions Manual	 al_set_haptic_gain(3)

NAME
       al_set_haptic_gain - Allegro 5 API

SYNOPSIS
	      #include <allegro5/allegro.h>

	      bool al_set_haptic_gain(ALLEGRO_HAPTIC *hap, double gain)

DESCRIPTION
       Sets  the  gain	of  the	haptic device if supported.  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.  Returns true if set success-
       fully, false if not.  Only works	if  al_get_haptic_capabilities(3)  re-
       turns   a   value  that	has  ALLEGRO_HAPTIC_GAIN(3)ALLEGRO_HAPTIC_CON-
       STANTS(3) set.  If not, this function returns false,  and  all  effects
       will be played without any gain influence.

SINCE
       5.1.8

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

Allegro	reference manual				 al_set_haptic_gain(3)

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