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.TH "al_set_haptic_gain" "3" "" "Allegro reference manual"
.SH NAME
al_set_haptic_gain \- Allegro 5 API
.SH SYNOPSIS
.IP
.EX
#include \f[B]<allegro5/allegro.h>\f[R]

bool al_set_haptic_gain(ALLEGRO_HAPTIC *hap, double gain)
.EE
.SH DESCRIPTION
Sets the gain of the haptic device if supported.
Gain is much like volume for sound, it is as if every effect\[cq]s
intensity is multiplied by it.
Gain is a value between 0.0 and 1.0.
Returns true if set successfully, false if not.
Only works if al_get_haptic_capabilities(3) returns a value that has
ALLEGRO_HAPTIC_GAIN(3)ALLEGRO_HAPTIC_CONSTANTS(3) set.
If not, this function returns false, and all effects will be played
without any gain influence.
.SH SINCE
5.1.8
.RS
.PP
\f[I][Unstable API]:\f[R] Perhaps could be simplified due to limited
support for all the exposed features across all of the platforms.
Awaiting feedback from users.
.RE