Alpar had the key, focus can be set in the window class. But it is not enough, the focused widget has to be activated, as well! Was a hard task to find out... By the way, two compilation warnings are removed.
4 Maintainer: LEMON Development Team <etik-ol@cs.elte.hu>
5 Build-Depends: debhelper (>= 4.0.0)
6 Standards-Version: 3.6.1
10 Depends: ${shlibs:Depends}, ${misc:Depends}, glpk
11 Description: A C++ template library aimed at combinatorial optimization tasks.
12 LEMON stands for Library of Efficient Models and
13 Optimization in Networks. It is a C++ template
14 library aimed at combinatorial optimization tasks,
15 especially those working with graphs and networks.