libsigc++: Libsigc++ (Callback system for standard C++)
libsigc++:
libsigc++: Libsigc++ implements a typesafe  callback  system  for  standard C++
libsigc++: It allows you to define  signals and to connect those signals to any
libsigc++: callback function, either global or a member function, regardless of
libsigc++: whether it is static or virtual.
libsigc++:
libsigc++:
libsigc++:
libsigc++:
libsigc++: