On Sun, Jun 08, 2003 at 08:37:42PM +0200, Andrej Prsa wrote: > > I must issue a system call from my program, something like > > system ("prog"); > > This operation takes at least a minute, but the time of computation > actually depends on many parameters. > > 1) How do I keep refreshing the GUI? Use g_spawn_async* family of functions instead, and use pipes to communicate with and track the child process if you need to. Havoc