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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!)


Checks whether a pen is still attached.

Header File

Defined in <SDL3/SDL_pen.h>


SDL_bool SDL_PenConnected(SDL_PenID instance_id);

Function Parameters

SDL_PenID instance_id a pen ID.

Return Value

(SDL_bool) Returns SDL_TRUE if "instance_id" is valid and the corresponding pen is attached, or SDL_FALSE otherwise.


If a pen is detached, it will not show up for SDL_GetPens(). Other operations will still be available but may return default values.


This function is available since SDL 3.0.0.

CategoryAPI, CategoryAPIFunction, CategoryPen

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