Function XTextExtents16 

pub unsafe extern "C" fn XTextExtents16(
    _7: *mut XFontStruct,
    _6: *const XChar2b,
    _5: i32,
    _4: *mut i32,
    _3: *mut i32,
    _2: *mut i32,
    _1: *mut XCharStruct,
) -> i32