+ 20 unused
+ 24 unused
+ 28 unused
+ 32 unused
+ 36 estimated size
+ 40 filetype of data
+ 44 proposed leafname, zero terminated
This message is sent to !Printers to initiate a print session. This should be sent recorded delivery (code 18), and if it bounces then you should complain that no printer driver is present.
Printers will respond with one of :
· PrintError if the printer is busy.
· PrintFile (for compatability with RISC OS 2 applications).
· PrintTypeOdd if it doesn't know how to print the file.
· DataSaveAck if the file should be saved for queueing (later, a PrintTypeOdd message will be broadcast when needed).
See PRM 3, page 262.
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