I want to know how to write Multithreading programme in Visual Basic
I had tried it with ActiveX ExE but i am still not satisfied whether it is right or wrong . plz help me

Vijay123

Which platform you are using i mean VB 6.0 or VB.NET ? VB 6.0 does not provide the multithreaded functionality of its own. Through win API you can use this feature into VB 6.0. You will have to declare those API into a module then only you can call them.



Deepesh Jain
VB,VBA & .NET Specialist
Wiley Support Team

Look at this page:

http://msdn.microsoft.com/library/de...pplication.asp

Using API to multithread VB is absolutely not safe. You can find tons of code in the internet that can work for a tiny application and will crash for all the others.

You are in the right track. It is possible to run VB code in a separate thread of execution putting that code in a class in an ActiveX exe and creating it with GetObject instead of the New operator.
A great book on the subject is "Developing COM/ActiveX components in VB6" by Daniel Appleman (Sams Press). The first section regarding ActiveX exe is ~400 pages long, and that gives you an idea of how a big subject this is. Playing by the rules it is possible to write great and safe multithread applications even in VB6.

As a final point, are you really sure that you need multiple threads? Usually a timer will do the thrick as well, avoiding the creation of an ActiveX components. And many technologies (like ADO) support asynchronous calls.

Marco

Other help in this matter
      i really enjoy multithreading in java
          i want to have this in vb also

Vijay123