Dear all, I have: Two TCanvas (c1 and c2) I'm filling c1 from thread 1 (c1->cd(); obj->Draw();) and the same in thread 2 for a different object and c2. In some cases this gives wrong results, becuase gPad (which is set in c1->cd() and c2->Ccd()) is global. Because the decision into whih canvas I want to draw (cd()) is done at a completely different place in my program than calling draw it would need a big effort to use Mutices here. Has somebody an idea how I could make this thread-safe? Thanks, Thomas.
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