Reading and Writing Edition Data
instead of putting data into one block as the Scrap Manager does. This model is similar to the data fork of a Macintosh file. You can read sequentially by
setting the mark to 0 and repeatedly calling read, or you can jump to a specific
capability to stream multiple formats by keeping a separate mark for each
format. This allows you to write a few bytes of one format and then write a few
bytes of another format, and so forth.
Once you have opened the edition container for a particular publisher, you can
begin writing data to the edition. Use the WriteEdition function to write publisher data to an edition.
err = WriteEdition ( whichEdition, whichFormat, buffPtr, buffLen); current mark for that format type) from the buffer pointed to by the buffPtr
parameter up to buffLen bytes.
After you open the edition container for a subscriber and determine which
formats to read, use the ReadEdition function to read edition data. err = ReadEdition ( whichEdition, whichFormat, buffPtr, buffLen); ( whichFormat) from the edition into the buffer. The ReadEdition function begins reading at the current mark for that format and continues to read up to
buffLen bytes. The actual number of bytes read is returned in the buffLen
parameter. Once the buffLen parameter returns a value smaller than the value
you have specified, there is no additional data to read, and the ReadEdition function returns a noErr result code.