+ 40 filetype of data
+ 44 filename
This message is sent by !Printers when it doesn't know how to print the file. The filetype and filename cannot be relied on if we have just come from a PrintSave message, but since the application started the print protocol it should still remember what it was planning to print.
When this message is sent by !Printers to print a file from its queue, the information is correct.
If an application knows how to print that filetype then it should respond with PrintTypeKnown and either :
· Print the file to Printer:
· Output the file to Printer$Temp before responding with PrintTypeKnown.
If it does not know the type, then it should ignore the message and await a DataSaveAck (which may never arrive if another application knows how to print the file) to queue the file for later printing.
See PRM 3, page 263.
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