Hi everyone,

I am working on a project that require RS232 asynchronous interface using Visual Basic. I started looking into the Win32API, but I don't have any clue. Can any expert give a hint or sample code?

thanks

Jason
[email protected]

 

Keep reading that Win32 API until you understand overlapped I/O vs. non-overlapped I/O, COMM events, blocking vs. non-blocking calls. It does make sense if you study it and it is the way to go. Sample code that you don't understand will be of no use to you.

Robert Scott
Real-Time Specialties
Embedded Systems Consulting

 

In Visual Basic, you should use the MSComm control for accessing the serial port. Thousands of examples are available in the Net, but the most important are the help pages in MSDN.

Regards
Yeasir Rahul
<a href="http://www.voltsmith.com">VoltSmith Technology</a>
rahul AT voltsmith DOT com

 

Jason,

There is a good demo in the Samples section of Microsoft Help & Support: http://support.microsoft.com/default.aspx?scid=kb;en-us;140880 (Search for article 140880 if the link breaks)

That will give you a starting point. From there, search for "serial API" on the Microsoft web site and you will find several more articles. Look for the links that start with 'msdn'.

Sealevel Systems (http://www.sealevel.com) includes help files and code samples for C++ and VB on the CD that ships with their serial products.

 

hello

I require serial port programming stuff. please send samples and data what you have please.

bye
janakiram
[email protected]