Resize legend got from fitting

[btkhai]

Dear all,

I have one question related to legend size.
I make a fitting with user-defined function.
before I fit, I set gStyle->SetOptFit(1111).
So after fitting, a legend is printed with fit parameters.
I want to resize the legend. (since it is too small)
Do you know any way for this purpose?
An alternative way is also very helpful.

Thank you

[couet]

{
   gStyle->SetOptFit(1111);
   auto h = new TH1F("h","h",100,-5,5);
   h->FillRandom("gaus",10000);
   h->Fit("gaus");

   // Make the fit box very large
   gPad->Update();
   TPaveStats *box = (TPaveStats *)h->FindObject("stats");
   box->SetX1NDC(0.01);
   box->SetY1NDC(0.01);
   box->SetX2NDC(0.99);
   box->SetY2NDC(0.99);
   gPad->Modified();
   gPad->Update();
}

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[btkhai]

Thank you very much !