xysliderAction.C
{
Int_t nx = hpxpy->GetXaxis()->GetNbins();
Int_t ny = hpxpy->GetYaxis()->GetNbins();
Int_t binxmin = nx*xslider->GetMinimum();
Int_t binxmax = nx*xslider->GetMaximum();
hpxpy->GetXaxis()->SetRange(binxmin,binxmax);
Int_t binymin = ny*yslider->GetMinimum();
Int_t binymax = ny*yslider->GetMaximum();
hpxpy->GetYaxis()->SetRange(binymin,binymax);
pad->cd();
pad->Modified();
//hpxpy->Draw(hpxpy->GetDrawOption());
c1->Update();
}