#include "TROOT.h"
#include "TCanvas.h"
#include "TRootCanvas.h"
#include <iostream>

using namespace std;

class MyCanvas
{
private:
	TCanvas *fCanvas;
public:
	MyCanvas(Int_t wx=800, Int_t wy =200, Int_t ww=400, Int_t wh =200);
	virtual ~MyCanvas();
	TCanvas *GetCanvas() { return fCanvas; };
	void CanvasClosed();
	void WindowClosed();
	ClassDef(MyCanvas,0)
};

ClassImp(MyCanvas)

MyCanvas::MyCanvas(Int_t wx, Int_t wy, Int_t ww, Int_t wh)
{
	fCanvas = new TCanvas("ccc", "ccc", wx, wy, ww, wh);
	fCanvas->Connect("Closed()", "MyCanvas", this, "CanvasClosed()");
	// To get notification when the window is closed from the
	// window manager the following is needed as of root 6.10.
	TRootCanvas *rc = (TRootCanvas *)fCanvas->GetCanvasImp();
	rc->Connect("CloseWindow()", "MyCanvas", this, "WindowClosed()");
	fCanvas->Draw();
}
MyCanvas::~MyCanvas()
{
	cout << "enter dtor MyCanvas" << endl;
	delete fCanvas;
	cout << "exit dtor MyCanvas" << endl;
}

void MyCanvas::CanvasClosed()
{
	cout << "CanvasClosed()" << endl;
}
void MyCanvas::WindowClosed()
{
	cout << "WindowClosed()" << endl;
	delete this;
}