Provided by: libsdl3-doc_3.2.8+ds-1_all 

NAME
SDL_PenButtonEvent - Pressure-sensitive pen button event structure (event.pbutton.*)
HEADER FILE
Defined in SDL3/SDL_events.h
SYNOPSIS
#include "SDL3/SDL.h" typedef struct SDL_PenButtonEvent { SDL_EventType type; /**< SDL_EVENT_PEN_BUTTON_DOWN or SDL_EVENT_PEN_BUTTON_UP */ Uint32 reserved; Uint64 timestamp; /**< In nanoseconds, populated using SDL_GetTicksNS() */ SDL_WindowID windowID; /**< The window with mouse focus, if any */ SDL_PenID which; /**< The pen instance id */ SDL_PenInputFlags pen_state; /**< Complete pen input state at time of event */ float x; /**< X coordinate, relative to window */ float y; /**< Y coordinate, relative to window */ Uint8 button; /**< The pen button index (first button is 1). */ bool down; /**< true if the button is pressed */ } SDL_PenButtonEvent;
DESCRIPTION
This is for buttons on the pen itself that the user might click. The pen itself pressing down to draw triggers a SDL_EVENT_PEN_DOWN event instead.
AVAILABILITY
This struct is available since SDL 3.2.0. Simple Directmedia Layer SDL 3.2.8 SDL_PenButtonEvent(3type)