Help! PtWebClient

I’m trying to port PtHtml widget to PtWebClient since PtHtml is no longer
supported. PtWebClient help is confusing, all i need to know is
how to display html format files in PtWebClient, these files reside in my
computer’s hard drive, not on web server. PtHtml has ‘html URL’
atribute where i can specify path of the html file, how do I do this in

any help will be appreciated.