public OutputNode(int x, int y)
            : base("Heightmap", new SerializableRect(x, y, 300, 400))
        {
            CreateInputs(1);
            hasOutput = false;
            previewSize = 256;

            this.type = lastType = OUTPUTTYPE.HEIGHTMAP;
        }

 private static extern RESULT FMOD_System_SetOutput(IntPtr system, OUTPUTTYPE output);

 // Pre-init functions.
 public RESULT setOutput(OUTPUTTYPE output)
 {
     return FMOD_System_SetOutput(systemraw, output);
 }

 public RESULT getOutput(ref OUTPUTTYPE output)
 {
     return FMOD_System_GetOutput(systemraw, ref output);
 }

 public RESULT getOutput              (out OUTPUTTYPE output)
 {
     return FMOD_System_GetOutput(rawPtr, out output);
 }

 private static extern RESULT FMOD5_System_GetOutput              (IntPtr system, out OUTPUTTYPE output);

 public RESULT getOutput(out OUTPUTTYPE output)
 {
     return System.FMOD5_System_GetOutput(this.rawPtr, out output);
 }