Current Page: NeXtMidas Training Primitives Files in a Primitive Writing Frame-Based Data
| Writing frame based data. All data is written from a `Data` buffer. The `Data` buffer is created in `open()`. The single `Data` buffer is often used to read, process and then write the data. Inside `process()` the data is written to the file. `outFile.write(dataBuffer, <numElements>)` `<numElements>` is often the same as `numRead` The `write(..)` method returns the number of elements written. However, few primitive writers check the return value when using `DataFile` since it is almost always the same as <numElements>.