Thanks for replying Bob.
So what I think you're saying is that if I'm calling a function of some 3rd party library for example, I don't know that it isn't spawning a thread so can't assume it's going to finish before it returns? But how about standard Delphi pascal code? Can I assume that things are synchronous there for the most part? I can't think of a specific example, I just had doubts raised several times that that was what was really happening. I couldn't think of a good way to test it besides using SendMessage or PostMessage. I wasn't even considering multi-threading applications, just the regular single thread. Thanks.
Dave
"[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote:
Hi Dave,
you can't be sure, you have to believe
or
look into the windows sources.
But
Windows is designed to work exactly in that way: pre-emptive, miltitasking, thread based.
There might be a good chance, that your underlying database uses messages and waits for the conclusion of a command,
but it will be designed in a way that your program will not gain control again until that job is finished.
You ought to belive in the functionallity of the elementary techniques, better doubt the complex ones ;-)
how to make RELLY sure? there are tCriticalSection and WatForSingleObject ot govern threads. use them at rare needs
Have fun!
Bob
> I would like to know how I can make sure the code will wait for something to process before executing the next line of code or NOT wait. I know I'm getting this with
> Sendmessage or PostMessage but not sure with Delphi events. So I guess my question is, Is a Delphi event synchronous (waits until first line finishes before going to next line) or
> asynchronous (executes next line even if first line isn't finished). I have seen things happen that raised doubts in my mind that Delphi was processing things synchronously.. like a
> lengthy talbe read followed by some code.
>
> Dave
>
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