[ NoAccessorMethod ]
[ Version ( since = "3.22" ) ]
public int rect_anchor_dx { get; set construct; }
Horizontal offset to apply to the menu, i.
e. the rectangle or widget anchor.
See gtk_menu_popup_at_rect (), gtk_menu_popup_at_widget (), gtk_menu_popup_at_pointer (), anchor_hints, rect_anchor_dy, menu_type_hint, and popped_up.