boolean setFocus() {
if (!OS.gtk_widget_get_child_visible(handle)) return false;
OS.GTK_WIDGET_SET_FLAGS(handle, OS.GTK_CAN_FOCUS);
OS.gtk_widget_grab_focus(handle);
// widget could be disposed at this point
if (isDisposed()) return false;
boolean result = OS.gtk_widget_is_focus(handle);
if (!result) OS.GTK_WIDGET_UNSET_FLAGS(handle, OS.GTK_CAN_FOCUS);
return result;
}
long /*int*/ gtk_focus_out_event(long /*int*/ widget, long /*int*/ event) {
OS.GTK_WIDGET_UNSET_FLAGS(handle, OS.GTK_CAN_FOCUS);
parent.lastFocus = this;
return 0;
}