> I began to use pthreads for win32, 

Not necessary, and actually might make the fltk native threads
misbehave, since most pthreads clones on winxx are wrapping native winxx
threads with additional context that the fltk core does not know
about... 
I'd advocate using native threads on each host. 
Look at the threads demo in the test folder, and read the docs.

Can you tell us what you are trying to do? Maybe one of us has a simple
example lying around that might point you in the correct direction.

Note, also, that for a lot of UI tasks, there are ways to get very
similar effects using timers and polling, so if the threads give you
problems or make you uneasy, you can probably live without them.

I'm a big fan of threads, and use them a lot, but they make it *really
easy* to mess things up in C and C++, so threading is Not Easy. Many
others here favour "thread avoidance" though as it makes the code
generally more "predictable" in its behaviour!
-- 
Ian




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