Re: Problem with g++

You must run with a TApplication object. See Users Guide, the test programs and your example modified below

Rene Brun

#include <TH1D.h>
#include <TApplication.h>
#include <TCanvas.h>
#include <TGClient.h>
#include <TGFrame.h>
#include<TRootEmbeddedCanvas.h>
#include <RQ_OBJECT.h>

TGMainFrame *fMain;
TRootEmbeddedCanvas *fEcanvas;
TH1D *fHist;

int main( int argc, char * argv[] ){

      TApplication theApp("App", &argc, argv);
      fMain = new TGMainFrame(gClient->GetRoot(),200,200);
      fEcanvas = new TRootEmbeddedCanvas("Ecanvas",fMain,200,200);
      fMain->AddFrame(fEcanvas,new 
TGLayoutHints(kLHintsExpandX|kLHintsExpandY,10,10,10,1));
      fMain->SetWindowName("Test Frame");
      fMain->MapSubwindows();
      fMain->Resize(fMain->GetDefaultSize());
      fMain->MapWindow();
      fHist = new TH1D("fHist", "Histogram", 100,-10,10);
      fHist->FillRandom("gaus");
      TCanvas *fCanvas = fEcanvas->GetCanvas();
      fCanvas->cd();
      fHist->Draw("AL");
      fCanvas->Update();
      theApp.Run();

On Thu,
8 Dec 2005, Kamil Mtrak
wrote:

> HelloI've got problem with running this code compiled with g++. Everythinggoes with no warning in g++, but when I start it I get
> *** Break *** segmentation violation Generating stack trace... 0xb663f36e in TGClient::GetRoot() const + 0x6 from /opt/root/lib/libGui.so 0x080494d5 in main + 0x31 from /home/muz/RootApplication/RootApplication 0xb6333ea2 in __libc_start_main + 0xd2 from /lib/tls/i686/cmov/libc.so.6 0x08049401 in TCanvasImp::ShowMembers(TMemberInspector&, char*) +0x5d from /home/muz/RootApplication/RootApplication
> I'm using ROOT 5.06.00 on Ubuntu Linux with g++ 3.3.6
> When I tried to run this as macro everything was OK. Any suggestions?
>
> #include <TH1D.h>#include <TCanvas.h>#include <TGClient.h>#include <TGFrame.h>#include <TRootEmbeddedCanvas.h>#include <RQ_OBJECT.h>
> TGMainFrame *fMain;TRootEmbeddedCanvas *fEcanvas;TH1D *fHist;
> int main( int argc, char * argv[] ){ fMain = new TGMainFrame(gClient->GetRoot(),200,200); fEcanvas = new TRootEmbeddedCanvas("Ecanvas",fMain,200,200); fMain->AddFrame(fEcanvas, newTGLayoutHints(kLHintsExpandX|kLHintsExpandY,10,10,10,1)); fMain->SetWindowName("Test Frame"); fMain->MapSubwindows(); fMain->Resize(fMain->GetDefaultSize()); fMain->MapWindow(); fHist = new TH1D("fHist", "Histogram", 100,-10,10); fHist->FillRandom("gaus"); TCanvas *fCanvas = fEcanvas->GetCanvas(); fCanvas->cd(); fHist->Draw("AL");}
>
Received on Fri Dec 09 2005 - 10:30:40 MET