Jack Shofner
11/4/2002 7:34:00 PM
Hi,
I have two apps that will be running continuously. One is
a third party app, and the other app is one that I am
programming in .NET. The third party gains control of
LPT1, which does not allow my app to have access to it.
When my app writes to LPT1: I get this error message
"There was an error writing to LPT1: for the printer
(EPSON TM-T88II(R) Receipt: Cannot access the port. It
may be in use by another program. Quit other programs and
try printing again."
The knowledge base article, Q127027, states that the
transmission retry field in printer properties needs to be
increased greater than 90. This was done without
success. We also tried sharing the printer. This did not
work either.
Is there a way in .NET or the API to make the third
party app give up control of the LPT1: port for a short
time, so that my app can use the port?