pub unsafe extern "C" fn libinput_event_tablet_tool_get_seat_button_count(
event: *mut libinput_event_tablet_tool
) -> u32
- @ingroup event_tablet
*
- For the button of a @ref LIBINPUT_EVENT_TABLET_TOOL_BUTTON event, return the total
- number of buttons pressed on all devices on the associated seat after the
- the event was triggered.
*
" @note It is an application bug to call this function for events other than
- @ref LIBINPUT_EVENT_TABLET_TOOL_BUTTON. For other events, this function returns 0.
*
- @param event The libinput tablet tool event
- @return the seat wide pressed button count for the key of this event