How do I create a UserInterface thread in Delphi?

Posted on 1999-01-06
Medium Priority
Last Modified: 2010-04-04
Is it possible to make one using TThread object ?

I tried to create a form in Execute function of Thread but it doesn't return from the constructor. Please help me out...
Question by:rjagan
  • 2

Accepted Solution

bcrotaz earned 90 total points
ID: 1354838
I think you'll find you can't.
The VCL is not thread-safe.  Therefore you can't create a form in a thread, because it would call methods on the Application variable, which would be accessed from other threads too.

The best way out of this is to leave your user interface in the main VCL thread, and do all your intensive processing in other threads.  Then to display results from a thread, use the TThread.Synchronize(MyMethod) method.  There's some good help on this method.

LVL 20

Expert Comment

ID: 1354839
Bryan is right. I really HATE it that the VCL is not thread safe...  :-(

Author Comment

ID: 1354840
Thanks a lot for ur consideration

Author Comment

ID: 1354841
Thanks a lot for ur consideration

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