Hi,
Control of an IO port (such as a printer) requires a device driver (see
IONet.dll for a .NET implementation, or IOocx.ocx for an ActiveX control) on
my homepage.
If you mean for this to be a browser-based application, executing on a
client machine... In general, you are SOL. The rights required to install
the device driver (admin) require that it be installed locally, and not as
part of something that you might download. This doesn't mean that it is
impossible, just hard and error-prone.
If you mean something else, please clarify.
Dick
--
Richard Grier, MVP
Hard & Software
Author of Visual Basic Programmer's Guide to Serial Communications, Fourth
Edition,
ISBN 1-890422-28-2 (391 pages, includes CD-ROM). July 2004, Revised March
2006.
See
www.hardandsoftware.net for details and contact information.