graphical GDB front-end for Geany

 Scope is a graphical GDB front-end with the normal functions you would
 expect (stepping, breakpoints, etc.), and a few notable features:
  * The comminication between Scope and gdb is asynchronous.
  * You can enter any gdb command, at any time.
  * All gdb I/O (along with some other messages) is displayed in a
    terminal-like "Debug Console". Whenever you find the GUI lacking,
    simply switch to that console and work directly with gdb.
  * 7-bit/Locale/UTF-8 support for values.
 .
 Geany is a small and lightweight integrated development environment using the
 GTK+ toolkit.