On 10/16/2018 09:58 PM, Dennis Clarke wrote:

Dear Xorg :

     Something I had not thought of came up today. Could multiple threads
call XDrawPoint() and then XFlush() ?  Suppose sixteen threads are
dispatched to do some foo and each of them utters some XDrawPoint()
calls and then XFlush()?  Is that remotely thread safe?


Sorry, assume XInitThreads() is in place.  Am I stuck with using
XLockDisplay() and XUnlockDisplay() and really multiple threads can
not really do work simultaneously. That is the question.

Dennis
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