System messes with Contextual Menu

Targets macOS
1

I want a DesktopTextField to have a contextual menu so that some values can be insertet via menu.
I added the appropriate event handlers and have the following code in the ConstructContextualMenu handler:

base.AddMenu(new DesktopMenuItem("Line1"))
base.AddMenu(new DesktopMenuItem("Line2"))
base.AddMenu(new DesktopMenuItem("Line3"))

When I run the app I get my 3 lines when I do a contextual click in that field, but macOS adds a separator and another line “Autofill” where I can select “Contact…” and “Password…”.

What do I have to do so that I just get the menuitems that I add myself and that the OS is not messing with my menu?
(macOS 15.5)

2

After digging through the forum I found a solution:
Dont use the ContextualMenu handlers, use MouseDown instead:

if IsContextualClick then
  var popMenu As new DesktopMenuItem
  popMenu.AddMenu(new DesktopMenuItem("Line1"))
  popMenu.AddMenu(new DesktopMenuItem("Line2"))
  popMenu.AddMenu(new DesktopMenuItem("Line3"))
  Var selectedMenu As DesktopMenuItem
  selectedMenu = popMenu.Popup
end if
return true
3

You could have just added return true at the end of the ConstructContextualMenu event.

4

Tried that, didnt work.