Hi, I know this is a FAQ, but I have forgotten the answer, sorry. I have a set of histograms (in compiled code) looking like : TH1D *h1 = new TH1D("h1", "h1", ...); TH1D *h2 = new TH1D("h2", "h2", ...); Then these histograms are filled, and then I start the browser and when I click on the histogram it gets drawn (in a separate "default" canvas). What I would like to have is that when I now "click" on the "drawn histogram" a specific function gets called. The function should get the "x" value of the "point" (or maybe the value of the x-axis ?) : for "h1" the function should look like : { gWireInfo->SayInfo(53, x); } for "h2" the function should look like : { gWireInfo->SayInfo(97, x); } How can I "glue" such simple functions to histograms while creating them ? Thanks in advance, Jacek.
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