Hi Alexander it can be done with a trick using signal-slots: - create macro (e.g. tst.C) containing the following function: void SetOpt(TObject* obj) { if (obj->InheritsFrom(TH2::Class())) { ((TH2*)obj)->SetOption("colz"); } } - load it root[].L tst.C - make class signal-slot connection root[] TQObject::Connect("TRootBrowser","DoubleClicked(TObject*)",0,0,"SetOpt(TObject*)"); mouse double click in any root browser will invoke SetOpt function That's all. Regards. Valeriy > Hi, > > in the TBrowser, I would like to click on a TH2 and have it drawn with > option 'colz' by default. I tried to edit the root.mimes but this did not > help. How can this be done? > > Thanks for your help. > > Alexander > >
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