void gtk_init ( void )
Call this function before using any other GTK functions in your GUI applications. It will initialize everything needed to operate the toolkit.
If you are using
GtkApplication, you don’t have to call
or gtk_init_check(); the
does it for you.
This function will terminate your program if it was unable to
initialize the windowing system for some reason. If you want
your program to fall back to a textual interface you want to
signal (SIGPIPE, SIG_IGN)
during initialization, to ignore SIGPIPE signals, since these are
almost never wanted in graphical applications. If you do need to
handle SIGPIPE for some reason, reset the handler after gtk_init(),
but notice that other libraries (e.g. libdbus or gvfs) might do