seed_win32_impl.hpp

// Copyright Take Vos 2022.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt)
 
#pragma once
 
#include "../win32_headers.hpp"
 
#include "seed_intf.hpp"
#include "../utility/utility.hpp"
#include "../macros.hpp"
#include <format>
 
hi_export_module(hikogui.random.seed : impl);
 
hi_export namespace hi::inline v1 {
 
inline void generate_seed(void *ptr, size_t size)
{
    auto status = BCryptGenRandom(NULL, static_cast<PUCHAR>(ptr), narrow_cast<ULONG>(size), BCRYPT_USE_SYSTEM_PREFERRED_RNG);
    if (not SUCCEEDED(status)) {
        throw os_error(std::format("BCryptGenRandom(): {}", get_last_error_message(status)));
    }
}
 
}