Function SQLDataSourcesW 

pub unsafe fn SQLDataSourcesW(
    henv: *mut c_void,
    fdirection: u16,
    szdsn: Option<&mut [u16]>,
    pcchdsn: Option<*mut i16>,
    wszdescription: Option<&mut [u16]>,
    pcchdescription: Option<*mut i16>,
) -> i16