Function x11::xt::XtRegisterCaseConverter

pub unsafe extern "C" fn XtRegisterCaseConverter(
    _4: *mut Display, 
    _3: Option<unsafe extern "C" fn(_: *mut Display, _: c_ulong, _: *mut c_ulong, _: *mut c_ulong)>, 
    _2: c_ulong, 
    _1: c_ulong
)