Dan Weston wrote:
One simple solution is to leave the state in Qt.
As of Qt 4.2, in C++ you can use
bool QObject::setProperty(const char * name, const QVariant & value) QVariant QObject::property(const char * name) const
to set and get properties on any QObject (hence any QWidget).
Since I believe these are (not yet) wrapped in QtHaskell, you can instead just create a widget that contains the state and just don't add it to a layout. Parent it to a widget and it will quietly disappear when its parent dies. If you want it to persist until you say so, don't parent it to anything (but then you might as well use Haskell for your state!)
Dan
Thanks for the reply, Dan. I don't quite follow---you mean create a widget in C++? I can't find setProperty/property in qtHaskell. I would like to keep everything in Haskell, though.