Finding handles to figure text

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Matt J
Matt J 2020-5-13
编辑： Rik 2020-5-15
I am attempting to use findobj to retrieve text objects in a plot. For some reason, this fails (R2018a,b). In the following example, I expect to retrieve handles to the axis labels, but it doesn't work.
>> plot(1:5); xlabel X; ylabel Y
>> H=findobj(gcf, '-property','Interpreter')
H =
0×0 empty GraphicsPlaceholder array.
No other property search seems to work either:
>> H=findobj(gcf, '-property','String')
H =
0×0 empty GraphicsPlaceholder array.
>> H=findobj(gcf, 'Type','Text')
H =
0×0 empty GraphicsPlaceholder array.
Does anyone know why findobj fails when used this way?

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Rik
Rik 2020-5-13
编辑：Rik 2020-5-15
The doc suggests the HandleVisibility property should be on to be found. The code below returns off on my copy of R2020a. The R2018a doc also contains this statement.
plot(1:5); xlabel X; ylabel Y
H=findobj(gcf);
H(1).Children.XLabel.HandleVisibility
You can use findall instead
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Matt J
Matt J 2020-5-15
That is interesting. I wonder what motivated the decision to make text annotation handles invisible...?

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