>I have a POS printer linked to my computer com1:, and I want to know the status of the printer, ready, busy, offline, power on/off, etc. Can anybody tell me how to use API to collect such information?
>Thanx a lot.

In Windows, it's the device driver that handles these sort of details. IOW, you have to first try to print or query the printer in order to find out the status.

Since Windows handles this, it's really not necessary for you to have to consider.