Windows print event messages

[Phuff]

I need to be able to capture events thrown by the Amyuni print driver(
a 3rd parter pdf conversion product), and it has specified numbers
which I believe I understand to be thw wParam of the print message.

here is what their documentation says:

Associated with each printer event, is an event code which is given in
the wParam parameter. The following event codes are
defined by the Windows Device Driver Kit:

Followed by the #DEFINE constant names and numbers, although some are
as low as 5 which wouldn't be a print event...so it must be the wParam.

My question is what is the constant for the print event according to
the Windows Device Driver Kit...I've looked everywhere!!!

I found a WM_PRINT constant in the winuser.h file and I know how to
capture windows messages. Just to test it I set it to throw up a
message box when the print event occurs but no printing will give me
the messagebox. I've tried everything. Any tips? Is the WM_PRINT the
incorect event?

Thanks,

Paul Huff