Function wxd_Config_WriteDouble 

pub unsafe extern "C" fn wxd_Config_WriteDouble(
    config: *mut wxd_ConfigBase_t,
    key: *const c_char,
    value: f64,
) -> bool

Writes a double value. @param config Pointer to the config object. @param key The key to write. @param value The value to write. @return true on success, false on failure.