Function windows_format_system_message

src/base/windows.cpp:14–24

#include <windows.h>

std::string windows_format_system_message(unsigned long error)
{
	WCHAR *wide_message;
	const DWORD flags = FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_MAX_WIDTH_MASK;
	if(FormatMessageW(flags, nullptr, error, 0, (LPWSTR)&wide_message, 0, nullptr) == 0)
		return "unknown error";

	std::optional<std::string> message = windows_wide_to_utf8(wide_message);
	LocalFree(wide_message);
	return message.value_or("(invalid UTF-16 in error message)");
}

std::wstring windows_args_to_wide(const char **arguments, size_t num_arguments)
{