Returns %TRUE if @device has been shadowed by a GTK+ device grab on another widget, so it would stop sending events to @widget. This may be used in the #GtkWidget::grab-notify signal to check for specific devices. See gtk_device_grab_add().
a #GdkDevice
%TRUE if there is an ongoing grab on @device by another #GtkWidget than @widget.
3.0
See Implementation
Returns %TRUE if @device has been shadowed by a GTK+ device grab on another widget, so it would stop sending events to @widget. This may be used in the #GtkWidget::grab-notify signal to check for specific devices. See gtk_device_grab_add().