gtk:widget-child-focus (widget direction)

widget -- a gtk:widget object
direction -- a gtk:direction-type value for the direction of focus movement

True if the focus ended up inside widget.

Called by widgets as the user moves around the window using keyboard shortcuts. The direction argument indicates what kind of motion is taking place (up, down, left, right, tab forward, tab backward).

This function calls the Gtk.WidgetClass.focus() virtual function. Widgets can override the virtual function in order to implement appropriate focus behavior.

The default Gtk.WidgetClass.focus() virtual function for a widget should return true if moving in direction left the focus on a focusable location inside that widget, and false if moving in direction moved the focus outside the widget. When returning true, widgets normally call the gtk:widget-grab-focus function to place the focus accordingly. When returning false, they do not modify the current focus location.

This function is used by custom widget implementations. If you are writing an application, you would use the gtk:widget-grab-focus function to move the focus to a particular widget.