1 files changed, 45 insertions, 0 deletions
diff --git a/src/shared/windows_error.cpp b/src/shared/windows_error.cpp
new file mode 100644
index 00000000..ad91db44
--- /dev/null
+++ b/src/shared/windows_error.cpp
@@ -0,0 +1,45 @@
+/*
+Copyright (C) 2012 Sebastian Herbord. All rights reserved.
+
+This file is part of Mod Organizer.
+
+Mod Organizer is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+Mod Organizer is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Mod Organizer.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "windows_error.h"
+#include <sstream>
+
+std::string windows_error::constructMessage(const std::string& input, int inErrorCode)
+{
+  std::ostringstream finalMessage;
+  finalMessage << input;
+
+  LPSTR buffer = NULL;
+
+  DWORD errorCode = inErrorCode != -1 ? inErrorCode : ::GetLastError();
+
+  // TODO: the message is not english?
+  if (FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
+                     NULL, errorCode, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPSTR)&buffer, 0, NULL) == 0) {
+    finalMessage << " (errorcode " << errorCode << ")";
+  } else {
+    LPSTR lastChar = buffer + strlen(buffer) - 2;
+    *lastChar = '\0';
+    finalMessage << " (" << buffer << " [" << errorCode << "])";
+    LocalFree(buffer); // allocated by FormatMessage
+  }
+
+  ::SetLastError(errorCode); // restore error code because FormatMessage might have modified it
+  return finalMessage.str();
+}