Provided by: libsdl3-doc_3.2.8+ds-1_all 

NAME
SDL_SendJoystickEffect - Send a joystick specific effect packet.
HEADER FILE
Defined in SDL3/SDL_joystick.h
SYNOPSIS
#include "SDL3/SDL.h" bool SDL_SendJoystickEffect(SDL_Joystick *joystick, const void *data, int size);
FUNCTION PARAMETERS
joystick the joystick to affect. data the data to send to the joystick. size the size of the data to send to the joystick.
RETURN VALUE
Returns true on success or false on failure; call SDL_GetError () for more information.
AVAILABILITY
This function is available since SDL 3.2.0. Simple Directmedia Layer SDL 3.2.8 SDL_SendJoystickEffect(3)