capturing windows from multiple threads

[Dmitry Teslenko]

Hello!
I writing yet another window switcher program and
I'm trying to investigate feasability of this design:
* several threads capturing window previews with XGetImage
* gui thread shows these previews to user

Xlib docs state that in multithreaded app XInitThreads should be called
first or programmer should protect all Xlib calls with thread-sync
facitilites. Does it mean I have no ability to prefrom Xlib calls from
different
threads at same time?
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