Hi, IsModified() is a query, I think a better way would be to change TPad.h from void Modified(Bool_t flag=1) { fModified = flag; } to void Modified(Bool_t flag=1) { // *SIGNAL* if (!fModified && flag) Emit("Modified()"); fModified = flag; } -Brett. Frederic Sarazin writes: > Dear ROOTers, > > I was wondering what would be the best SIGNAL that could be send by QtRoot > to say that the current Pad has been changed or something new happened in > the > current pad (the purpose is to retrieve the informations of the histograms > contained > in this current Pad). > > I was thinking of gPad->IsModified()... however, in the QtRoot Version that > I have > (downloaded from the GSI-Go4 website), there is no signal avalaible from the > class > TQRootCanvas except Destroy(). > Is there any version of QtRoot that are more advanced and would have the > feature > I'm looking for ? > > Thanks for your continuous help, it is very much appreciated. > > Fred (TRIUMF) > >
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