Using Winsock / TCP Client

[Mark L. Breen]

Hello All,

I am using a winsock device to stream printer code to a printer. It works
well enough except one problem you may be able to help with.

When I establish a connection and stream code to the printer, it works
immediately, and the printer prints immediately.

I can stream code to the printer multiple times with no delays. However,
once I close the tcpClient, and re-open it, the printer does not print until
I shut down the VB.Net application.

I have tried multiple different places to close and reopen the tcpClient,
but so far, unless I keep it open for the duration of the application, I
lose the immediate printing until I shut down the application. I guess it
is sitting in a buffer somewhere, but I cannot find it.

Any suggestions?

Thanks in advance for your time.
Mark Breen
Ireland

[Thomas Homan]

Mark,

You might be needing to dispose of the tcpClient fully prior opening a new
connection.

I ran into the same thing with a serial datastream. I had to completely
build and release (mySerialConn = nothing) the connection between sessions.
VB otherwise was trying to use objects that were in limbo. Everything would
run fine the first time but fail the second.

Just my $0.02

Tom
"Mark L. Breen" <ma********@nospam-gmail.com.off> wrote in message
news:%2****************@TK2MSFTNGP15.phx.gbl...

Hello All,

I am using a winsock device to stream printer code to a printer. It works
well enough except one problem you may be able to help with.

When I establish a connection and stream code to the printer, it works
immediately, and the printer prints immediately.

I can stream code to the printer multiple times with no delays. However,
once I close the tcpClient, and re-open it, the printer does not print
until I shut down the VB.Net application.

I have tried multiple different places to close and reopen the tcpClient,
but so far, unless I keep it open for the duration of the application, I
lose the immediate printing until I shut down the application. I guess it
is sitting in a buffer somewhere, but I cannot find it.

Any suggestions?

Thanks in advance for your time.
Mark Breen
Ireland