Provided by: libsdl3-doc_3.2.20+ds-2_all 

NAME
SDL_HINT_VITA_TOUCH_MOUSE_DEVICE - A variable controlling which touchpad should generate synthetic mouse
events.
SYNOPSIS
#include <SDL3/SDL_hints.h>
#define SDL_HINT_VITA_TOUCH_MOUSE_DEVICE "SDL_VITA_TOUCH_MOUSE_DEVICE"
DESCRIPTION
The variable can be set to the following values:
• "0": Only front touchpad should generate mouse events. (default)
• "1": Only back touchpad should generate mouse events.
• "2": Both touchpads should generate mouse events.
This hint can be set anytime.
AVAILABILITY
This hint is available since SDL 3.2.0.
Simple Directmedia Layer SDL 3.2.20 SDL_HINT_VITA_TOUCH_MOUSE_DEVICE(3)