Hi, here is my main program: /// nodig voor ROOT: extern void InitGui(); VoidFuncPtr_t initfuncts[] = { InitGui, 0 }; int Error; TROOT mijnroot("mijn wortel", "Canvas scherm", initfuncts); TApplication *theApp; TCanvas *plotcanvas; ifstream input_file; ///tracks for offset determination Track* min_tracks; ///number of tracks to be user for offsetdetermination Int_t nr_of_min_tracks; int main(int argc, char **argv) { // First create application environment. If you replace TApplication // by TRint (which inherits from TApplication) you will be able // to execute CINT commands once in the eventloop (via Run()). Track testtrack; theApp = new TApplication("App",&argc,argv); input_file.open("translated.racks"); TControlBar *commandolijst = new TControlBar("vertical", "Commando's"); commandolijst->AddButton("Set Input File", "SetInputFile()", "Give name of file to process"); commandolijst->AddSeparator(); commandolijst->AddButton("Calculate Efficiency" , "EfficiencyDetermination()", "Determine efficiency"); commandolijst->AddButton("Calculate Resolution", "ResolutionDetermination()","Determine resolution"); commandolijst->Show(); getchar(); plotcanvas = new TCanvas("Picture", "The Alignment Geometry", 400,400,400,400); plotcanvas->Show(); /// vul cell met de plaats etc van de draden. SetGeometry(); /// dit gaat dus fout: testtrack.CreateSimulatedR(1,0.0001); /* eff, noise*/ // testtrack.LoadNextFromFile(); testtrack.TrackFitUser(); testtrack.Plot_On_Screen(); return(0); } Maybe the problem is that I have another canvas also? I don't know, I am quite new to ROOT. Thanks. Maarten. On Mon, 28 Apr 1997, Nenad Buncic wrote: > On Mon, 28 Apr 1997, Maarten Bruinsma wrote: > > > I am making a controlbar in a program, but I don't know why the buttons > > do not appear. > > Do I have to give an additional command? > > No you don't have to give an additional command, you are > doing just fine. I've tried your example running interactively > and it works fine. > It's very likely that your problem is somewhere else > in your code, so could you send us at least your 'main' program. > > > And for later: How exactly do I tell it what to do if the button is > > pressed. Do I have to give "MyRoutine()" as a second argument to > > AddButton? > > The second parameter is exact command as you type it > from the command line interface (interpreter), i.e: > ".x hello.cxx" > ".q" > "int f = calc()" > > > ------------------------------------------------------- > Nenad BUNCIC email: Nenad.Buncic@cern.ch > CERN, PPE Division/NA49 phone: (+41.22.76)76462, > CH-1211 Geneva 23 (+41.22.76)74921 > SWITZERLAND fax: (+41.22.76)77910 > ------------------------------------------------------- > >
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