SDL_SetHapticGain - Set the global gain of the specified haptic device.

       This function is available since SDL 3.2.0.

       Device must support the SDL_HAPTIC_GAIN
        feature.

       The user may specify the maximum gain by setting the environment variable

       SDL_HAPTIC_GAIN_MAX  which  should  be  between  0  and 100. All calls to SDL_SetHapticGain () will scale
       linearly using SDL_HAPTIC_GAIN_MAX as the maximum.

haptic the SDL_Haptic
               device to set the gain on.

       gain   value to set the gain to, should be between 0 and 100 (0 - 100).

       Defined in SDL3/SDL_haptic.h

       SDL_SetHapticGain - Set the global gain of the specified haptic device.

       Returns true on success or false on failure; call

       SDL_GetError () for more information.

•(3), SDL_GetHapticFeatures(3)

Simple Directmedia Layer                           SDL 3.2.10                               SDL_SetHapticGain(3)

#include"SDL3/SDL.h"boolSDL_SetHapticGain(SDL_Haptic*haptic,intgain);