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.global.deviceGrabAdd.
a #GdkDevice
true if there is an ongoing grab on device by another #GtkWidget than widget.
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.global.deviceGrabAdd.