Select substring in html element

[ssimop]

Supposed you have an html element in the form :

Code:

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el=htm("BODY" "" "" hwnd 0 0 0x20)

Is it possible to select a substring in it in the way you can do it for a window (h), ie:

Code:

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SendMessage(h EM_SETSEL i i+length)

Many thanks in advance.