https://github.com/waycrate/xdg-desktop-portal-luminous/blob/master/src/pipewirethread.rs#L159-L170

relate logic is here.

First try

I always found that the the cursor cannot be shown when using the ext-image-copy. I though maybe I cast the i32 to u32, and then I always get 0. but after I print the value of options, it always be PaintCursors!!

Second try

Then I think maybe the PaintCursors is a fake one, or maybe something wrong with from_bits, then I try to fixed the options to Options::from_bits(1), and the cursor shown!

Final try

Then I cannot believe my mind. I try something that impossible. I create another i32 value

let cursor_overlay: i32 = 1;

and just print the origin cursor_overlay, and even add a assert_eq, to check if the input one is the same as the new one.

They are the same

but with the new value, cursor_overlay(1), the cursor shown. Then I deleted the line of the new value, the cursor gone, with the input param of cursor_overlay(1) and Options::PaintCursors

This is a magic of these days.. I do not know who to blame

Etc

I also tried

 let session = if cursor_overlay == 1 {
       manager.create_session(&source, Options::PaintCursors, &qh, ());
  } else {
        manager.create_session(&source, Options::empty(), &qh, ());
 };

It also did not work