This is a very simple example of how to write a popup input method.It provids a set of buttons to produce hex diget key events, alongwith return and backspace.  It can be thought of as a very simplevirtual keyboard.The input method is defined in popupim.h and popupim.cppThe plugin code for a InputMethodInterface is in popupimpl.h andpopupimpl.cppThe plugin code for a ExtInputMethodInterface is in popupextimpl.h andpopupextimpl.cppmain.cpp is a stub that allows testing of the input method in isoloationfrom the qpe server.See inputmethods.html for a detailed explanation of creating a PopupInput Method.