Intercept any print job and prompt for password.

Question

HI Everyone.

I was introduced to prgramming a while ago...I wanted to create a windows app to prompt for a password when launching a printjob before it reaches my printer's print queue.

Can anyone help me on this please.

Best Regards

The Randomiser Charter

Answer 1

This would likely be a job for C++.  You might be able to do it from a managed application through a lot of Win32 interop, but determining the specific steps necessary would be outside the scope of this forum.

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Reed Kimble - "When you do things right, people won't be sure you've done anything at all"

Answer 2

Hello,

According to your description, I search for a way to handle print job event, please take a look:

FindFirstPrinterChangeNotification and Monitoring print jobs.

Best Regards,

Cherry Bu

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Answer 3

hi thanks for the advice

but i really need an app to control my printer!

Answer 4

but i really need an app to control my printer!

There are a number of applications available for managing your print queues in a Windows environment.  For example:  http://www.softwareshelf.com/products/print_queue_manager.htm

Answer 5

hi thanks for the advice

but i really need an app to control my printer!

FindFirstPrinterChangeNotification()
FindNextPrinterChangeNotification()
if pdwChange = PRINTER_CHANGE_ADD_JOB you get the Job ID from PRINTER_NOTIFY_INFO_DATA
You pause the Job with
SetJob() and JOB_CONTROL_PAUSE
You call your Dialog Box, then

you resume the Job with
SetJob() and JOB_CONTROL_RESUME
or you cancel it with
SetJob() and JOB_CONTROL_DELETE

Answer 6

hi thanks for the advice

but i really need an app to control my printer!

FindFirstPrinterChangeNotification()
FindNextPrinterChangeNotification()
if pdwChange = PRINTER_CHANGE_ADD_JOB you get the Job ID from PRINTER_NOTIFY_INFO_DATA
You pause the Job with
SetJob() and JOB_CONTROL_PAUSE
You call your Dialog Box, then

you resume the Job with
SetJob() and JOB_CONTROL_RESUME
or you cancel it with
SetJob() and JOB_CONTROL_DELETE

And what prevents someone from opening the print queue while the dialog is shown and selecting resume from the print manager without entering anything in the password dialog?

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Reed Kimble - "When you do things right, people won't be sure you've done anything at all"

Answer 7

And what prevents someone from opening the print queue while the dialog is shown and selecting resume from the print manager without entering anything in the password dialog?

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Yes, but if the OP displays a Password dialog, he must lock the desktop

Answer 8

If possible, can you post the program syntaxes cause i am having some difficulties in making one

Best Regards,

The randomiser charter