Set touchpad finger state on an opened virtual joystick.
Defined in <SDL3/SDL_joystick.h>
int touchpad, int finger, Uint8 state, float x, float y, float pressure); SDL_bool SDL_SetJoystickVirtualTouchpad(SDL_Joystick *joystick,
SDL_Joystick * | joystick | the virtual joystick on which to set state. |
int | touchpad | the index of the touchpad on the virtual joystick to update. |
int | finger | the index of the finger on the touchpad to set. |
Uint8 | state | SDL_PRESSED if the finger is pressed, SDL_RELEASED if the finger is released. |
float | x | the x coordinate of the finger on the touchpad, normalized 0 to 1, with the origin in the upper left. |
float | y | the y coordinate of the finger on the touchpad, normalized 0 to 1, with the origin in the upper left. |
float | pressure | the pressure of the finger. |
(SDL_bool) Returns SDL_TRUE on success or SDL_FALSE on failure; call SDL_GetError() for more information.
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.
This function is available since SDL 3.0.0.