Editing GDK (section)

===GdkFrameClock===
GdkFrameClock was added in GTK 3.8<ref>{{cite web |url=https://developer.gnome.org/gdk3/stable/GdkFrameClock.html |title=GdkFrameClock}}</ref>

While GTK applications remain mainloop driven (cf. [[Event_loop#Glib_event_loop|Glib event loop]]), meaning the application is idle inside this main loop most of the time waiting for an event and then calls the appropriate subroutine when one occurs, GdkFrameClock adds an additional mechanism, which tells the application when to update and repaint a window.<ref>{{cite web |url=https://blogs.gnome.org/alexl/2013/11/04/the-modern-gtk-drawing-model/ |title=The modern Gtk drawing model |date=2013-11-04 |last=Larsson |first=Alexander}}</ref> The update rate can be synchronized with the monitor refresh rate.