###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!) # SDL_MOUSE_TOUCHID The [SDL_TouchID](SDL_TouchID) for touch events simulated with mouse input. ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_touch.h) ## Syntax ```c #define SDL_MOUSE_TOUCHID ((SDL_TouchID)-1) ``` ## Version This macro is available since SDL 3.1.3. ---- [CategoryAPI](CategoryAPI), [CategoryAPIMacro](CategoryAPIMacro), [CategoryTouch](CategoryTouch)