[ygra]

Just using WPF controls without having access to the features that WPF provides is kinda pointless, though. Also nearly (?) all other platform-native toolkits use simple immediate-mode rendering, while WPF heavily uses templates and retained-mode vector graphics, so abstracting away custom drawing code for controls might prove a bit hard, for example.

If you only have a button and a text field and want to make stuff happen when the button is clicked, then I doubt there is any difference in whether it uses Win32 or WPF.