Re: [MACTCL] Tk in thread on MacOS

[Programmingkid <pro...@gm...>]

> On Dec 1, 2017, at 1:30 AM, Steve Landers <st...@di...> wrote:
> 
> 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

It is common for GUI frameworks to only want to use the main thread for all their GUI work.

When I tried out your code in wish I saw the label, so it works for me. Only when I tried quitting the application an exception occurred.

My info:
TK 8.5.9
Mac OS 10.12.6