Filters use the IPrintWriteStreamFlush interface to explicitly flush data as a raw stream of bytes from a filter. This interface is retrieved through IPrintWriteStream::QueryInterface().
The IPrintWriteStreamFlush interface has these methods.
|IPrintWriteStreamFlush::FlushData||The FlushData method flushes buffered data to a data stream while leaving the stream open, allowing the caller to write additional data to the stream.|
|Header||filterpipeline.h (include Filterpipeline.h)|