It seems that the idea of adding a medium-complexity GUI library to boost is popular, but that there are widely varying opinions on how it should be done.
I think this is a great idea - my interest would probably be atypical in that I would love to have a cross-platform system on which to hang a 2D/3D scientific visualization library.
7. It should not use device-specific units like pixels, wherever this is practical.
I'm not so sure about this requirement - from an efficiency standpoint in applications such as image processing it is best to be able to discriminate between integral and continuous screen scaling. As far as the demo program : int main(int argc, char* argv[]) { window w = create_window(); w->title("Example window"); w->contain(create_button(w, "Hello, world!")); wait_for_signal(w->delete_signal); } why not : int main(int argc, char* argv[]) { window w("Example window"); // more consistent with button syntax below w.add(button("Hello, world!")); // no need to have w be a pointer? w.wait_for(delete_signal()); } or something like that. Matthias ------------------------------------------------------------------------ --------------------------- Matthias Schabel, Ph.D. Utah Center for Advanced Imaging Research 729 Arapeen Drive Salt Lake City, UT 84108 801-587-9413 (work) 801-585-3592 (fax) 801-706-5760 (cell) 801-484-0811 (home) mschabel at ucair med utah edu