[ROOT] Problem when I close a TCanvas

From: Matthieu Tristram (tristram@pcatlas3.mppmu.mpg.de)
Date: Fri Jul 06 2001 - 14:17:45 MEST 

Hi Rooters !

I'm a new user of ROOT, and I have a little problem when I want to close a
TCanvas.
I want to make a sort of Navigation Bar for several plots, so I have a
code like :

void Plot_test() {
  TCanvas     *test = new TCanvas("test", "TEST", 10, 10, 500, 200);

  test->Clear();
  TPad *testCanvas_1 = new TPad("testCanvas_1",
"testCanvas_1",0.00117096,0.110843,0.998829,0.998795);
...
my plot
...
  testCanvas_2 = new TPad("testCanvas_2", 
"testCanvas_2",0.00117096,0.00120482,0.998829,0.110843);
  testCanvas_2->Draw();  
  TButton *button = new 
TButton("Close","test->Close();",0.131455,0.10989,0.275822,0.89011);
  button->Draw();

  TButton *but1 = new TButton("Next", "test->Close();Plot_test();", 0.60,
0.1, 0.75, 0.9);
  but1->Draw();

   test->cd();
}

And it happens several times that when a click on the Next button, a "***
Break *** segmentation violation" appears.
I test some other way to close my TCanvas, but it seems to be the most
stable.

I'm using Root 3.00/06.

Can anybody help me ?

Regards.
Matthieu Tristram.

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