Re: [TCLCORE] Tcl 9.0.4 Release Candidates

[Marc C. <cul...@gm...>]

On Mon, Jun 1, 2026, 2:05 PM Paul Obermeier <pa...@po...> wrote:

> Well, macOS may return whatever color it means is useful.
> It should just be the same when using Tk 8.6.18, 9.0.3 or 9.0.4.
>

I am not so sure about that. There were changes in Tk 9 to make it more
consistent in how colorspaces are used.  Tk 9 is allowed to make changes
that are not compatible with Tk 8.

- Marc



> Paul
>
> Am 31.05.2026 um 15:02 schrieb Marc Culler:
>
> I can confirm that the script prints 0 0 245 on an m3 macbook air running
> macOS 26.
>
> However, that result is not exactly wrong, or not in the way you might
> guess.  The Apple ColorPicker.app also reports the color as (0, 0, 245).
> So Tk is reporting the actual color showing on the screen.  Perhaps this
> has something to do with which colorspace is being used when doing the
> rendering.
>
> - Marc
>
> On Sat, May 30, 2026 at 11:03 AM Paul Obermeier <pa...@po...> wrote:
>
>> Builds fine and Tcl/Tk test suites running successfully (with the usual 3
>> Windows exceptions) on the following platforms:
>> MacOS 15.7.1       M2      clang 17.0.0
>> Suse 15.6          x86_64  gcc 7.5.0
>> Debian ARM         arm64   gcc 12.2.0
>> Windows 11         x86     gcc 14.2.0
>> Windows 11         x86_64  gcc 14.2.0
>> Windows 11         x86_64  VS2022
>>
>> I noticed a strange behaviour using Tk 9.0.4 and the Img extension on
>> macOS:
>> The attached script draws a blue rectangle into a canvas and grabs the
>> canvas content into a photo image using the "window" format of Img.
>> With Tk 8.6.18 and 9.0.3 this returns the correct color value (0,0,255).
>> Using 9.0.4 it returns (0,0,245). Happens only on macOS.
>> Can anybody please confirm this behaviour?
>>
>> Regards,
>> Paul
>>
>> Am 29.05.2026 um 19:59 schrieb Donald G Porter via Tcl-Core:
>> >
>> > Now available at
>> >
>> > https://sourceforge.net/projects/tcl/files/Tcl/9.0.4
>> >
>> > are RC0 candidate source code distribution pre-releases of Tcl 9.0.4.
>> > These are the first candidate releases leading to the release of Tcl
>> 9.0.4
>> >
>> > The Tcl pre-release includes a pre-release of the package Thread 3.0.5.
>> > The released packages Itcl 4.3.7, TDBC* 1.1.13, and sqlite3 3.53.0 are
>> also included.
>> >
>> > Please test these candidates on your platforms and report any blocking
>> issues
>> > you discover.
>> >
>> > Thank you for your contributions and assistance.
>> >
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