| Parameter | Description |
|---|---|
| foreachIndex | The index of the buffer to write. |
Readies this writer to write to a particular buffer of the stream.
Must be called before using this writer. For an individual writer, call this method only once.
After calling BeginForEachIndex on this writer, passing this writer into functions must be passed by reference.
When done using this writer, you must call NativeStream.Writer.EndForEachIndex.