QTextEdit insert and get html

[Qtonimo]

Hi,
I want to develop a QTextEdit, which allows the user to do some basic formatting(bold,italic,lists, ...). So the user inserts html tags like <b>text</b> and so on.
After editing, the html should be stored in a database, but if I call toHtml() the output is different (with info about the font and so on. (The docu confirm that)). If I call toPlainText() the tags go away.

Now I want to know I I have the possibility to get the html, the user inserted before...

thank you