Sure you will. Not a free lunch to be had when writing portable code. BTW, I never said those toolkits were better than HTML/CSS, just said that it is doable.

Sure you will. Not a free lunch to be had when writing portable code. BTW, I never said those toolkits were better than HTML/CSS, just said that it is doable. In general, the more you depend on the native rendering engine for your widgets (be it the browser's or heavy-weight controls in your native toolkit) the harder it is to get consistency. If you use something like FLTK (which looks kinda gross, but renders every control) then you get consistency at between platforms, but not with the platform. In other words: meh.