message: fix missing std:: in d3dsample
diff: @@ -168,7 +168,7 @@ static const char* keys =
  {
  "{c camera | true | use camera or not}"
  "{f file | | movie file name }"
  - "{h help | false | print help info }"
  + "{h help | | print help info }"
  };
  @@ -176,9 +176,9 @@ template <typename TApp>
  int d3d_app(int argc, char** argv, std::string& title)
  {
  cv::CommandLineParser parser(argc, argv, keys);
  + std::string file = parser.get<std::string>("file");
  bool useCamera = parser.has("camera");
  - string file = parser.get<string>("file");
  - bool showHelp = parser.get<bool>("help");
  + bool showHelp = parser.has("help");
  if (showHelp)
  help();
  @@ -198,8 +198,8 @@ int d3d_app(int argc, char** argv, std::string& title)
  return -1;
  }
  - int width = (int)cap.get(CAP_PROP_FRAME_WIDTH);
  - int height = (int)cap.get(CAP_PROP_FRAME_HEIGHT);
  + int width = (int)cap.get(cv::CAP_PROP_FRAME_WIDTH);
  + int height = (int)cap.get(cv::CAP_PROP_FRAME_HEIGHT);
  std::string wndname = title;
  