Gtk.Widget.get_frame_clock

### Method

# Gtk Widgetget_frame_clock

#### Declaration [src]

    GdkFrameClock*
    gtk_widget_get_frame_clock (
      GtkWidget* widget
    )

#### Description [src]

Obtains the frame clock for a widget.

The frame clock is a global “ticker” that can be used to drive animations and repaints. The most common reason to get the frame clock is to call `gdk_frame_clock_get_frame_time()`, in order to get a time to use for animating. For example you might record the start of the animation with an initial value from `gdk_frame_clock_get_frame_time()`, and then update the animation by calling `gdk_frame_clock_get_frame_time()` again during each repaint.

`gdk_frame_clock_request_phase()` will result in a new frame on the clock, but won’t necessarily repaint any widgets. To repaint a widget, you have to use `gtk_widget_queue_draw()` which invalidates the widget (thus scheduling it to receive a draw on the next frame). `gtk_widget_queue_draw()` will also end up requesting a frame on the appropriate frame clock.

A widget’s frame clock will not change while the widget is mapped. Reparenting a widget (which implies a temporary unmap) can change the widget’s frame clock.

Unrealized widgets do not have a frame clock.

#### Return value

Returns: | `GdkFrameClock`
| A `GdkFrameClock`
| The data is owned by the instance.
| The return value can be `NULL`.