MultiThreading?

[Fredrik Melin]

Hi,

How can I make a sub to be executed only one at the time in a multithreaded
environment?

Eg, I have "server" thread,s that does printing, problem is when several
server threads running at the same time, the Crystal Reports Com Object
crashes, Guess its not thread safe..

How can I change so my "PrintReport" sub only run one at the time, if
another thread is requried to use it, it need to wait until the first is
done.

( I see how I can do it with a global boolean and some do while loops, but
is there any built in functionallity for this kind of operations?)

- Fredrik

 

[Cor Ligthert]

Frederik,

The only thing from this article is that I know that it exist.
(I did not need it)

http://msdn.microsoft.com/library/d...-us/vbcn7/html/vaconthreadsynchronization.asp

I hope this helps?

Cor

 

[Guest]

Use SyncLock Statement
Private Sub PrintReport()
SyncLock "PrintReport"
'Printing
End SyncLock
End Sub