You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: plotters_d2d.rs
    path of file: ./repos/native-windows-gui/native-windows-gui/src/win32
    
    the code of the file until where you have to start completion: /*!
    Direct2D backend for the plott
    
unsafe fn locale_name() -> Vec<u16> {
    use winapi::um::winnls::GetUserDefaultLocaleName;
    use winapi::um::winnt::LOCALE_NAME_MAX_LENGTH;

    let mut name_buffer: Vec<u16> = vec![0; LOCALE_NAME_MAX_LENGTH];
    GetUserDefaultLocaleName(name_buffer.as_mut_ptr(), LOCALE_NAME_MAX_LENGTH as i32);

    name_buffer
}