(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)
SDL_HINT_PEN_NOT_MOUSE
A variable controlling whether to treat pen movement as separate from mouse movement.
Defined in <SDL3/SDL_hints.h>
Syntax
#define SDL_HINT_PEN_NOT_MOUSE "SDL_PEN_NOT_MOUSE"
By default, pens report both SDL_MouseMotionEvent and SDL_PenMotionEvent updates (analogously for button presses). This hint allows decoupling mouse and pen updates.
This variable toggles between the following behaviour:
- "0": Pen acts as a mouse with mouse ID SDL_PEN_MOUSEID. (default) Use case: client application is not pen aware, user wants to use pen instead of mouse to interact.
- "1": Pen reports mouse clicks and movement events but does not update SDL-internal mouse state (buttons pressed, current mouse location). Use case: client application is not pen aware, user frequently alternates between pen and "real" mouse.
- "2": Pen reports no mouse events. Use case: pen-aware client application uses this hint to allow user to toggle between pen+mouse mode ("2") and pen-only mode ("1" or "0").
This hint can be set anytime.
Version
This hint is available since SDL 3.0.0.
CategoryAPI, CategoryAPIMacro
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