Recording streams to file (ONI file)

We learned about playing ONI files but it was only a part of this topic. You can record ONI files from the device's outputs yourself too. We will now introduce an openni::Recorder class that can be used for this purpose. This recipe is easy, as adding and starting openni::VideoStream involves nothing special.

Getting ready

Create a project in Visual Studio 2010 and prepare it for working with OpenNI using the Creating a project in Visual Studio 2010 recipe of Chapter 2, Open NI and C++.We don't need OpenGL in this recipe.

How to do it...

1. Add the following lines above your source code (just below the #include lines):

   char ReadLastCharOfLine()
   {
     int newChar = 0;
     int lastChar;
     fflush(stdout);
     do 
     {
       lastChar = newChar;
       newChar = getchar();
     }
     while ((newChar != '\n') 
       && (newChar != EOF));
     return (char)lastChar;
   }
   
   bool HandleStatus(Status status)
   {
     if (status == STATUS_OK)
       return true;
     printf("ERROR: #%d, %s", status...