Hi, I am writing a scientific programm and would like to use the ROOT facilities both for the user interface and to display and print the graphs of input and output data on the screen. Concerning the user interface I have the following question about the controlbar: it seems to me (as far as I understood your responses in the mailing list) that it is possible to attach pure C++ code to a controlbar button instead of a CINT-makro. What I want to do is to attach a function of my own class TSolution to the button, to get a graph of my solution when the button is pressed. Here is a piece of code of the main program: main(..){ TSolution mySolution; TControlBar *bar= new TControlbar("vertical"); bar->AddButton("ShowSolution","mySolution.Display()","a graph of the current solution is shown"); } Trying that, I always get the error message "No symbol mySolution.Display in current scope" which appears clear to me, because mySolution is not known in the scope of TControlBar. Nevertheless, is there a way to use the controlbar as a user interface mixed with own code like I was trying it? Any help would be appreciated A LOT! Martina
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