problem with calling a sub with parametres

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I have a subroutine that looks like that

VB

Function GetCodekeyFunction(ByVal realstring As String, ByVal en As String, ByVal encrpyed As String) As String
  'code here

End Function

and I want to call it from another thread

VB

Dim threadd As New System.Threading.Thread(AddressOf GetCodekeyFunction("F", "F", "F"))

but it doesn't work!

How can I declare a thread that calls a sub or function with parameters??

Posted 18-Feb-11 7:38am

tasoskiller

Updated 18-Feb-11 7:48am

Henry Minute

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Henry Minute · Answer 1 · 2011-02-18T07:54:00

Solution 1

One way is to use ParameterizedThreadStart.

Take a look at this[^] thread, or search the internet. Be careful with the MSDN pages that might be in the list of hits, since I believe the example they use to be incorrect.

Posted 18-Feb-11 7:54am

Henry Minute

Comments

Sergey Alexandrovich Kryukov 18-Feb-11 16:58pm

Henry, did I tell you ParameterizedThreadStart is bad in principle, because of casting. There is much better solution: write a wrapper around thread and pass its instance method to the thread start. As instance method passes "this" as a hidden call parameter, the whole wrapper class instance is passed via "this", which is equivalent to passing unlimited number of parameters, even via synchronized properties, etc. No cast is required. I don't think I can write it in VB.NET though. I've a C# code though:
http://www.codeproject.com/Questions/155842/How-to-pass-ref-parameter-to-the-thread.aspx
--SA

Henry Minute 18-Feb-11 20:51pm

I'm not sure if you have mentioned this before, or not, SA, but I am very old and my memory ain't what it used to be. I'll take a look at your link though. :)

Henry Minute 18-Feb-11 20:54pm

I've bookmarked that and will take a look later today. It's very late here and waaay past my bed-time.