NAME

SDL_SetJoystickVirtualTouchpad - Set touchpad finger state on an opened virtual joystick.

HEADER FILE

Defined in SDL3/SDL_joystick.h

SYNOPSIS

#include "SDL3/SDL.h"

bool SDL_SetJoystickVirtualTouchpad(SDL_Joystick *joystick, int touchpad, int finger, bool down, float x, float y, float pressure);

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.

touchpad

the index of the touchpad on the virtual joystick to update.

finger

the index of the finger on the touchpad to set.

down

true if the finger is pressed, false if the finger is released.

x

the x coordinate of the finger on the touchpad, normalized 0 to 1, with the origin in the upper left.

y

the y coordinate of the finger on the touchpad, normalized 0 to 1, with the origin in the upper left.

pressure

the pressure of the finger.

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.