#[unsafe(no_mangle)]pub unsafe extern "C" fn lumen_signal_set_str(
name: *const c_char,
value: *const c_char,
) -> LumenStatusExpand description
Set a scalar signal to a UTF-8 string. A null value writes an empty
string. Thread-safe.
Pushes a PropertyValue::Str through the foundation typed-property
bus, so bind-text="..." markup observes the new string on the next
tick. Mirrors the write into the FFI-local cache for pre-run
read-back.