1al_set_haptic_gain(3)                                    al_set_haptic_gain(3)
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NAME

6       al_set_haptic_gain - Allegro 5 API
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SYNOPSIS

9              #include <allegro5/allegro.h>
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11              bool al_set_haptic_gain(ALLEGRO_HAPTIC *hap, double gain)
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DESCRIPTION

14       Sets  the  gain  of  the haptic device if supported.  Gain is much like
15       volume for sound, it is as if every effect’s intensity is multiplied by
16       it.  Gain is a value between 0.0 and 1.0.  Returns true if set success‐
17       fully, false if not.  Only works if  al_get_haptic_capabilities(3)  re‐
18       turns   a   value  that  has  ALLEGRO_HAPTIC_GAIN(3)ALLEGRO_HAPTIC_CON‐
19       STANTS(3) set.  If not, this function returns false,  and  all  effects
20       will be played without any gain influence.
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SINCE

23       5.1.8
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25              [Unstable  API]: Perhaps could be simplified due to limited sup‐
26              port for all the exposed features across all of  the  platforms.
27              Awaiting feedback from users.
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31Allegro reference manual                                 al_set_haptic_gain(3)
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