2 files changed, 67 insertions, 0 deletions
diff --git a/cloud_print/common/win/cloud_print_utils.cc b/cloud_print/common/win/cloud_print_utils.cc
new file mode 100644
index 0000000..5816b64
--- /dev/null
+++ b/cloud_print/common/win/cloud_print_utils.cc
@@ -0,0 +1,40 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "cloud_print/common/win/cloud_print_utils.h"
+
+#include <windows.h>
+
+namespace cloud_print {
+
+HRESULT GetLastHResult() {
+  DWORD error_code = GetLastError();
+  return error_code ? HRESULT_FROM_WIN32(error_code) : E_FAIL;
+}
+
+string16 LoadLocalString(DWORD id) {
+  static wchar_t dummy = L'\0';
+  HMODULE module = NULL;
+  ::GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT |
+                      GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, &dummy, &module);
+  LPCWSTR buffer = NULL;
+  // If the last parameter is 0, LoadString assume that 3rd parameter type is
+  // LPCWSTR* and assign pointer to read-only memory with resource.
+  int count = ::LoadString(module, id, reinterpret_cast<LPWSTR>(&buffer), 0);
+  if (!buffer)
+    return string16();
+  return string16(buffer, buffer + count);
+}
+
+string16 GetErrorMessage(HRESULT hr) {
+  LPWSTR buffer = NULL;
+  ::FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS |
+                  FORMAT_MESSAGE_ALLOCATE_BUFFER,
+                  0, hr, 0, reinterpret_cast<LPWSTR>(&buffer), 0, NULL);
+  string16 result(buffer);
+  ::LocalFree(buffer);
+  return result;
+}
+
+}  // namespace cloud_print
diff --git a/cloud_print/common/win/cloud_print_utils.h b/cloud_print/common/win/cloud_print_utils.h
new file mode 100644
index 0000000..c38dccd
--- /dev/null
+++ b/cloud_print/common/win/cloud_print_utils.h
@@ -0,0 +1,27 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CLOUD_PRINT_COMMON_CLOUD_PRINT_UTILS_H_
+#define CLOUD_PRINT_COMMON_CLOUD_PRINT_UTILS_H_
+
+#include <wtypes.h>
+
+#include "base/string16.h"
+
+namespace cloud_print {
+
+// Similar to the Windows API call GetLastError but returns an HRESULT.
+HRESULT GetLastHResult();
+
+// Convert an HRESULT to a localized string.
+string16 GetErrorMessage(HRESULT hr);
+
+// Retrieves a string from the string table of the module that contains the
+// calling code.
+string16 LoadLocalString(DWORD id);
+
+}  // namespace cloud_print
+
+#endif  // CLOUD_PRINT_COMMON_CLOUD_PRINT_UTILS_H_
+