Am 10.06.2025 um 10:10 schrieb Mark Summerfield:

I have been porting a small GUI game ~1400LOC from Tcl/Tk 8.6 → 9.

**Changes for 8.6 → 9**

I used ~ for $HOME a few times in one function, so had to change that.

When drawing canvas polygons I found I was getting a 1 pixel black outline that is _not_ present in the 8.6 version. So it appears that the default for outline has changed. I easily fixed this by adding `-outline ""` but didn't spot this in the Tk 9 release notes.

The biggest amount of work was with the namespace change. So I had to change a lot of `board::...` to `::board::...` and similar. This was tedious but
not difficult.

**Changes since I was changing things**

I switched from sourcing Tcl files to using `.tm` modules; much nicer.

I switched from PNG images to SVG; again, much nicer.

**Scaling**

For scaling I use this line:

`if {[info exists env(TK_SCALING)]} {tk scaling $env(TK_SCALING)}`

and have an environment variable `TK_SCALING` which I set to different
values on my desktop and laptop.

However this doesn't work when I put a Tcl/Tk app in a taskbar launcher so I'm going to add scaling as a config option too.

See Tcl/Tk 8.6: https://github.com/mark-summerfield/gravitate-tcl
and Tcl/Tk 9: https://github.com/mark-summerfield/gravitate-tcl9

PS My ISP has now stopped supporting newsgroup access.
And a few years ago Google stopped supporting them.
I really wish there was a general Tcl/Tk mailing list that could
be used.

Mark,
thanks for you effort.
The porting wiki pages are:

https://core.tcl-lang.org/tcl/wiki?name=Migrating+scripts+to+Tcl+9&p https://core.tcl-lang.org/tk/wiki?name=Migrating+scripts+to+Tk+9&p

The -outline is not mentioned there. I suppose, this is a bug.
May you file a report?
If it is not a bug, it would be great to add it to the wiki page.

Thanks for all,
Harald

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

Marc,
great that you want to add this on the wiki.
Are you sure, this is intended and not a bug?
I would prefer to open a ticket.

Fossil does not save any E-Mail addresses, except for alerts (tickets
and modifications).
The E-Mail for those may be set.

Harald

Am 10.06.2025 um 11:18 schrieb Mark Summerfield:

I tried adding this to the wiki page:

```
## Canvas outline default has changed

When creating a canvas polygon in Tk 8.6 no outline is drawn by default.
For Tk 9 the default is to draw a 1 pixel black line. To get the old behavior, create with the option `-outline ""`.
```

Incidentally, is it possible to change email address on core.tcl-lang.org? When I click my username it offers options to change site skin, manage cookies and change password, but not to change email.

On Tue, 10 Jun 2025 10:37:56 +0200, Harald Oehlmann wrote:

Am 10.06.2025 um 10:10 schrieb Mark Summerfield:

I have been porting a small GUI game ~1400LOC from Tcl/Tk 8.6 → 9.

[snip]

PS My ISP has now stopped supporting newsgroup access.
And a few years ago Google stopped supporting them.
I really wish there was a general Tcl/Tk mailing list that could be
used.

Mark,
thanks for you effort.
The porting wiki pages are:

https://core.tcl-lang.org/tcl/wiki?name=Migrating+scripts+to+Tcl+9&p
https://core.tcl-lang.org/tk/wiki?name=Migrating+scripts+to+Tk+9&p

The -outline is not mentioned there. I suppose, this is a bug.
May you file a report?
If it is not a bug, it would be great to add it to the wiki page.

Thanks for all,
Harald

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

Thanks for the action.
Neverhteless, the change looks strange.
For doublecheck, I have opened a ticket.

Thanks for all,
Harald

Am 10.06.2025 um 11:18 schrieb Mark Summerfield:

I tried adding this to the wiki page:

```
## Canvas outline default has changed

When creating a canvas polygon in Tk 8.6 no outline is drawn by default.
For Tk 9 the default is to draw a 1 pixel black line. To get the old behavior, create with the option `-outline ""`.
```

Incidentally, is it possible to change email address on core.tcl-lang.org? When I click my username it offers options to change site skin, manage cookies and change password, but not to change email.

On Tue, 10 Jun 2025 10:37:56 +0200, Harald Oehlmann wrote:

Am 10.06.2025 um 10:10 schrieb Mark Summerfield:

I have been porting a small GUI game ~1400LOC from Tcl/Tk 8.6 → 9.

[snip]

PS My ISP has now stopped supporting newsgroup access.
And a few years ago Google stopped supporting them.
I really wish there was a general Tcl/Tk mailing list that could be
used.

Mark,
thanks for you effort.
The porting wiki pages are:

https://core.tcl-lang.org/tcl/wiki?name=Migrating+scripts+to+Tcl+9&p
https://core.tcl-lang.org/tk/wiki?name=Migrating+scripts+to+Tk+9&p

The -outline is not mentioned there. I suppose, this is a bug.
May you file a report?
If it is not a bug, it would be great to add it to the wiki page.

Thanks for all,
Harald

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)