SDL_PenID

SDL pen instance IDs.

Header File

Defined in <SDL3/SDL_pen.h>

Syntax

typedef Uint32 SDL_PenID;

Remarks

Zero is used to signify an invalid/null device.

These show up in pen events when SDL sees input from them. They remain consistent as long as SDL can recognize a tool to be the same pen; but if a pen physically leaves the area and returns, it might get a new ID.

Version

This datatype is available since SDL 3.2.0.

CategoryAPI, CategoryAPIDatatype, CategoryPen