###### (This is the documentation for SDL3, which is the current stable version. [SDL2](https://wiki.libsdl.org/SDL2/) was the previous version!) # SDL_PenButtonEvent Pressure-sensitive pen button event structure (event.pbutton.*) ## Header File Defined in [](https://github.com/libsdl-org/SDL/blob/main/include/SDL3/SDL_events.h) ## Syntax ```c 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; ``` ## Remarks 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](SDL_EVENT_PEN_DOWN) event instead. ## Version This struct is available since SDL 3.1.3. ---- [CategoryAPI](CategoryAPI), [CategoryAPIStruct](CategoryAPIStruct), [CategoryEvents](CategoryEvents)