SmartWinDraw

SmartWinDraw is a simple drawing application. It does the same as the one from the windows totorial, but uses the SmartWin GUI lib, and as such requere MinGW/DevCpp or Microsoft Visual C++ 7.1 or later to compile. You need to install a SmartWin from there homepage.

wxCalc

This sample shows how to work with dialog boxes with wxWidgets/wxWindows.
Tree text/edit boxes and a button are created. You need wxWidgets to build and run it.