FindFirstPrinterChangeNotification fails on XP laptop.

[Flit]

Howdy folks, I'm having a little problem with FindFirstPrinterChangeNotification that has got me baffled. When I call this function on a laptop running XP Pro SP2 I get this error: This function is not supported on this system. However this same .exe works fine on the other XP systems I've tested it on and calls the function with no problems. If anyone has any insight into what could be causing this problem I would be very grateful for the help. Thanks folks.

[David Crow]

Flit wrote:

When I call this function on a laptop running XP Pro SP2 I get this error: This function is not supported on this system.

So GetLastError() is returning ERROR_CALL_NOT_IMPLEMENTED?

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"Take only what you need and leave the land as you found it." - Native American Proverb

[Graham Bradshaw]

Are you using a different printer on the laptop? Is it possible that ultimately it's the printer driver that is saying "I don't support the notification that you've asked for"

[Flit]

Hi DavidCrow, thanks for the response. FindFirstPrinterChangeNotification returns INVALID_HANDLE_VALUE. GetLastError returns ERROR_CALL_NOT_IMPLEMENTED.

[Flit]

Hi Graham, thanks for your help you set me on the right track. I installed a new printer on the laptop and it worked fine, the printer I was testing with previously was a network printer. I went to check on the network printer and it turned out that one of the helpful folk here had unplugged it because they needed the power outlet. I guess this happened between my succesful tests and when I started testing on the laptop. I've added in some code to disregard any printers that aren't available and it's working fine. Thankyou.