I stumbled over this: http://tronche.com/gui/x/xlib/display/XInitThreads.html
So Xlib is thread aware and they seem to suggest that it dopes make sense to create multiple X sessions (i.e. one per thread) in a single program.
(And I learned that in fact XInitThreads() can be called in Lazarus projects. -> http://lists.lazarus.freepascal.org/pipermail/lazarus/2013-January/078799.html )
So in fact X does support multiple "!GUIs" (e.g. one per thread) in a multithreadded project.
Of course it might be that QT (or KDE) impose additional restrictions (though I still suppose that this can be handles somehow).
-Michael -- _______________________________________________ Lazarus mailing list Lazarus@lists.lazarus.freepascal.org http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
