Filter Driver for printer port

Filter Driver for printer port

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Posted by Ranjith Rao on April 25, 2002 at 07:07:37:

i am trying to write a WDM filter driver to capture data to be printed.Any data to be printed is to be captured and routed to a file or to an application.
Hence i tried writing an upper filter for the printer port.The driver is installed properly, but it captures only the first packet(irp) when a print command is given. It does not capture the data packets that follow. If anybody can throw some light on this, i could get into the details of the routines i have used.
Thanks in advance.

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