Is it possible to intercept data sent to a printer via usb cable?

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Is it possible to get the data that is sent to the printer using VB .NET?

What I have tried:

Is there any sample code for this?

Posted 2-May-21 23:24pm

nkm00e

Updated 2-May-21 23:43pm

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Richard MacCutchan 3-May-21 9:44am

If you mean data from other applications, then the short answer is no. It is possible by writing a Windows device driver filter, but that is an advanced topic which requires a good understanding of the internals of the Windows OS.

nkm00e 3-May-21 21:07pm

Hi, thank you for the reply. Just to confirm, so it is almost impossible to intercept the data sent to the printer? I have another question, is it possible to get the data that was sent to the printer driver?

Richard MacCutchan 4-May-21 3:03am

Yes, as I suggested in my comment, by writing a filter driver.

nkm00e 4-May-21 3:06am

Hi, thank you for your reply :) I will look into it.

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