Hm, I'm not sure if you really understand my problem. If it was a regular QLineEdit, things are relatively clear, the problem is that the input fields I'm trying to get hints working on are in HTML inside QWebView.

It would be great if it was somehow possible to switch ALT button on/off programmatically (the blue "shift" on Nokia N900) or access keyboard layout information for currently used localisation, since the standard HTML5 input types seem not to be recognized (and input method hinting / validating works only on native Qt form elements - or does it).