Not able to retrieve hist bin label created with ChangeLabel()

[apetukho]

Dear ROOT experts,

I have an issue similar to Axis label disappears on saving.
However, I cannot get the bin label even exactly after I’ve set it with ChangeLabel().

The code is:

hist = TH1D("h1", "h1", 10, 0, 1)
h1->GetXaxis()->ChangeLabel(1, -1, -1, -1, -1, -1, "test")
h1->GetXaxis()->GetBinLabel(1)

Expected output: test
Actual output: (const char *) ""

The output of h1->Draw(), so the label is actually changing.

Is there a way to retrieve the bin labels set this way?

Thanks in advance,
Aleksandr

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ROOT Version: 6.24/06
Platform: lxplus

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[couet]

@apetukho

Expected output: test
Actual output: (const char *) ""

That does not work that way “ChangeLabel” is purely graphics and GetBinLabel does not see the new graphics label.

[apetukho]

So if the label text was set with ChangeLabel() there’s no way to retrieve this text?

[couet]

No, as I said it is purely graphics.