deskflow/src/lib/platform/MSWindowsUtil.cpp

/*
 * Deskflow -- mouse and keyboard sharing utility
 * SPDX-FileCopyrightText: (C) 2012 - 2016 Symless Ltd.
 * SPDX-FileCopyrightText: (C) 2004 Chris Schoeneman
 * SPDX-License-Identifier: GPL-2.0-only WITH LicenseRef-OpenSSL-Exception
 */

#include "platform/MSWindowsUtil.h"

#include "base/String.h"

#include <stdio.h>

//
// MSWindowsUtil
//

std::string MSWindowsUtil::getString(HINSTANCE instance, DWORD id)
{
  char *msg = NULL;
  int n = LoadString(instance, id, reinterpret_cast<LPSTR>(&msg), 0);

  if (n <= 0) {
    return std::string();
  }

  return std::string(msg, n);
}

std::string MSWindowsUtil::getErrorString(HINSTANCE hinstance, DWORD error, DWORD id)
{
  char *buffer;
  if (FormatMessage(
          FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_FROM_SYSTEM, 0, error,
          MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR)&buffer, 0, NULL
      ) == 0) {
    std::string errorString = deskflow::string::sprintf("%d", error);
    return deskflow::string::format(getString(hinstance, id).c_str(), errorString.c_str());
  } else {
    std::string result(buffer);
    LocalFree(buffer);
    return result;
  }
}