gint gdk_error_trap_pop ( void )
Removes an error trap pushed with gdk_error_trap_push().
May block until an error has been definitively received
or not received from the X server.
is preferred if you don’t need to know whether an error
occurred, because it never has to block. If you don’t
need the return value of gdk_error_trap_pop(), use gdk_error_trap_pop_ignored().
Prior to GDK 3.0, this function would not automatically
sync for you, so you had to
gdk_flush() if your last
call to Xlib was not a blocking round trip.