Provided by: libsdl3-doc_3.2.28+ds-1_all 

NAME
SDL_SetJoystickVirtualButton - Set the state of a button on an opened virtual joystick.
SYNOPSIS
#include <SDL3/SDL_joystick.h>
bool SDL_SetJoystickVirtualButton(SDL_Joystick *joystick, int button, bool down);
DESCRIPTION
Please note that values set here will not be applied until the next call to SDL_UpdateJoysticks, which
can either be called directly, or can be called indirectly through various other SDL APIs, including, but
not limited to the following: SDL_PollEvent, SDL_PumpEvents, SDL_WaitEventTimeout, SDL_WaitEvent.
FUNCTION PARAMETERS
joystick
the virtual joystick on which to set state.
button the index of the button on the virtual joystick to update.
down true if the button is pressed, false otherwise.
RETURN VALUE
for more information.
AVAILABILITY
This function is available since SDL 3.2.0.
Simple Directmedia Layer SDL 3.2.28 SDL_SetJoystickVirtualButton(3)