How to read and write data from a LPT in C#?

Asked Sep 30 '13 at 04:08

Active Sep 30 '13 at 04:08

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I did some research around, some of the answers suggest using inpout32.dll, I tried it in C#, it always return 255 whenever I read from any address. sample code.

All I want to do is to read from 0x379 when my printer is power on and off, see if I can get two sets of different data, hence I can tell the printer is on or off!(I don't know if this will work, let me know if u know it won't work!)

If u happens to know any other way around to accomplish the task, please share it with me.

edited May 23 '17 at 12:03

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asked Sep 30 '13 at 04:08

castiel

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http://stackoverflow.com/questions/1622903/how-do-i-check-if-a-printer-is-installed-and-ready-using-c/1622931#1622931 – Blorgbeard Sep 30 '13 at 04:14
@Blorgbeard it won't work, because my printer is not a standard printer, there is no driver for it. – castiel Sep 30 '13 at 04:29
Ah, I see. Then I can't help you, sorry :) – Blorgbeard Sep 30 '13 at 04:38

How to read and write data from a LPT in C#?

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