XCB_XKB_STATE_PART_POINTER_BUTTONS

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
extern (C)
alias XCB_XKB_STATE_PART_POINTER_BUTTONS = xcb_xkb_state_part_t.XCB_XKB_STATE_PART_POINTER_BUTTONS

Meta