Function Tk_GetElementSize 

pub unsafe extern "C" fn Tk_GetElementSize(
    style: Tk_Style,
    element: Tk_StyledElement,
    recordPtr: *mut c_char,
    tkwin: Tk_Window,
    width: c_int,
    height: c_int,
    inner: c_int,
    widthPtr: *mut c_int,
    heightPtr: *mut c_int,
)