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(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)


A variable controlling whether trackpads should be treated as touch devices.

Header File

Defined in <SDL3/SDL_hints.h>




On macOS (and possibly other platforms in the future), SDL will report touches on a trackpad as mouse input, which is generally what users expect from this device; however, these are often actually full multitouch-capable touch devices, so it might be preferable to some apps to treat them as such.

The variable can be set to the following values:

This hint should be set before SDL is initialized.


This hint is available since SDL 3.0.0.

CategoryAPI, CategoryAPIMacro, CategoryHints

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