TCanvas *c;
Bool_t connected = kFALSE;

void SlotAxisChanged()
{
   Double_t xmin, xmax;
   TPad *pad = dynamic_cast<TPad*>(gTQSender);
   if (pad == 0) return;
   xmin = pad->GetUxmin();
   xmax = pad->GetUxmax();
   cout << "xmin = " << xmin << " xmax = " << xmax << endl;   
   TList *prims=(TList*)pad->GetListOfPrimitives();
   TIter next(prims);
   TH1I *h1;
   Double_t x1,x2;
   while ((obj = next())) {
      if(obj->InheritsFrom(TH1I::Class()) ) {
         h1 = (TH1I*)obj;
         x1 = h1->GetXaxis()->GetXmin();
         x2 = h1->GetXaxis()->GetXmax();
         printf(">>> %g %g\n",x1,x2);
      }
   }

}

void connect()
{
   TQObject::Connect("TPad", "RangeAxisChanged()", 0, 0, "SlotAxisChanged()");
   connected = kTRUE;
}

void adc1()
{
    c = (TCanvas*) gROOT->GetListOfCanvases()->FindObject("c1");
    if (c == 0) c = new TCanvas("c1", "c1");
    c->Clear();
    c->Divide(2,4);

    p[0] = (TPad *)c->cd(1); adc1R_hx00->Draw();
    gPad->SetLogy();
    p[1] = (TPad *)c->cd(2); tdc2_hx12->Draw();
    gPad->SetLogy();
    p[2] = (TPad *)c->cd(3); adc1R_hx01->Draw();
    gPad->SetLogy();
    p[3] = (TPad *)c->cd(4); tdc2_hx13->Draw();
    gPad->SetLogy();
    p[4] = (TPad *)c->cd(5); adc1R_hx02->Draw();
    gPad->SetLogy();
    p[5] = (TPad *)c->cd(6); tdc2_hx14->Draw();
    gPad->SetLogy();
    p[6] = (TPad *)c->cd(7); adc1R_hx03->Draw();
    gPad->SetLogy();
    p[7] = (TPad *)c->cd(8); tdc2_hx15->Draw();
    gPad->SetLogy();
    c->cd();
    if (!connected) connect();
}

void adc2()
{
    c = (TCanvas*) gROOT->GetListOfCanvases()->FindObject("c1");
    if (c == 0) c = new TCanvas("c1", "c1");
    c->Clear();
    c->Divide(2,4);

    c->cd(1); adc2R_hx00->Draw();
    gPad->SetLogy();
    c->cd(2); tdc1_hx04->Draw();
    gPad->SetLogy();
    c->cd(3); adc2R_hx01->Draw();
    gPad->SetLogy();
    c->cd(4); tdc1_hx05->Draw();
    gPad->SetLogy();
    c->cd(5); adc2R_hx02->Draw();
    gPad->SetLogy();
    c->cd(6); tdc1_hx06->Draw();
    gPad->SetLogy();
    c->cd(7); adc2R_hx03->Draw();
    gPad->SetLogy();
    c->cd(8); tdc1_hx07->Draw();
    gPad->SetLogy();
    c->cd();
    if (!connected) connect();
}

void adc3()
{
    c = (TCanvas*) gROOT->GetListOfCanvases()->FindObject("c1");
    if (c == 0) c = new TCanvas("c1", "c1");
    c->Clear();
    c->Divide(2,4);

    c->cd(1); adc3R_hx00->Draw();
    gPad->SetLogy();
    c->cd(2); tdc1_hx08->Draw();
    gPad->SetLogy();
    c->cd(3); adc3R_hx01->Draw();
    gPad->SetLogy();
    c->cd(4); tdc1_hx09->Draw();
    gPad->SetLogy();
    c->cd(5); adc3R_hx02->Draw();
    gPad->SetLogy();
    c->cd(6); tdc1_hx10->Draw();
    gPad->SetLogy();
    c->cd(7); adc3R_hx03->Draw();
    gPad->SetLogy();
    c->cd(8); tdc1_hx11->Draw();
    gPad->SetLogy();
    c->cd();
    if (!connected) connect();
}

void adc4()
{
    c = (TCanvas*) gROOT->GetListOfCanvases()->FindObject("c1");
    if (c == 0) c = new TCanvas("c1", "c1");
    c->Clear();
    c->Divide(2,4);

    c->cd(1); adc4R_hx00->Draw();
    gPad->SetLogy();
    c->cd(2); tdc1_hx12->Draw();
    gPad->SetLogy();
    c->cd(3); adc4R_hx01->Draw();
    gPad->SetLogy();
    c->cd(4); tdc1_hx13->Draw();
    gPad->SetLogy();
    c->cd(5); adc4R_hx02->Draw();
    gPad->SetLogy();
    c->cd(6); tdc1_hx14->Draw();
    gPad->SetLogy();
    c->cd(7); adc4R_hx03->Draw();
    gPad->SetLogy();
    c->cd(8); tdc1_hx15->Draw();
    gPad->SetLogy();
    c->cd();
    if (!connected) connect();
}

void adc5()
{
    c = (TCanvas*) gROOT->GetListOfCanvases()->FindObject("c1");
    if (c == 0) c = new TCanvas("c1", "c1");
    c->Clear();
    c->Divide(2,4);

    c->cd(1); adc5R_hx00->Draw();
    gPad->SetLogy();
    c->cd(2); tdc2_hx04->Draw();
    gPad->SetLogy();
    c->cd(3); adc5R_hx01->Draw();
    gPad->SetLogy();
    c->cd(4); tdc2_hx05->Draw();
    gPad->SetLogy();
    c->cd(5); adc5R_hx02->Draw();
    gPad->SetLogy();
    c->cd(6); tdc2_hx06->Draw();
    gPad->SetLogy();
    c->cd(7); adc5R_hx03->Draw();
    gPad->SetLogy();
    c->cd(8); tdc2_hx07->Draw();
    gPad->SetLogy();
    c->cd();
    if (!connected) connect();
}
c->Pop();