IHTMLDocument3中的“ getElementsByClassName”

Question

In my BHO (COM DLL), I have code to get the elements by 'id' and 'name' using IHTMLDocument3's getElementById and getElementsByName api's. I need to get the elements by class name . But I dint find any getElementsByClassName api with IHTMLDocument3. I need to get the elements by 'class'.

How can I get the collection elements of 'class' using IHTMLDocument3?

Answer 1

How can I get the collection elements of 'class' using IHTMLDocument3?

Manually iterating over the DOM and examining element properties.

However there is a getElementsByClassName as part of IHTMLDocument7 , but this requires a later version of IE to be installed (IE * if I recall correctly). If you have a sufficient version of IE, then you can QueryInterface for IHTMLDocument7 given an interface pointer to an earlier version.