Widget.getFrameClock

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.FrameClock.getFrameTime], 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.FrameClock.getFrameTime], and then update the animation by calling [gdk.frame_clock.FrameClock.getFrameTime] again during each repaint.

[gdk.frame_clock.FrameClock.requestPhase] 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.Widget.queueDraw] which invalidates the widget (thus scheduling it to receive a draw on the next frame). [gtk.widget.Widget.queueDraw] 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.