[MACTCL] Tk in thread on MacOS

[Steve L. <st...@di...>]

Should Tk work in a thread on MacOS ?

The following script works on Linux and Windows, but not MacOS the toplevel window resizes but the label doesn’t appear.

I can’t find any documentation that says it shouldn’t work.
package require Thread
set id [thread::create]
thread::send $id {
package require Tk
label .l1 -text "This is a label"
grid configure .l1
}

It seems the grid is the problem, because I can see the label widget exists.  Replacing grid with a pack doesn’t fix it.

Can anyone shed some light?

—Steve