Harden Color Picker against leaks

[dcog989]

Harden Color Picker

Further to #38122 and in addition to #38147, this PR intends to harden the Color Picker against resource leaks. Also adds try-catch to handle potential failure.

The code has not been tested, but has been carefully checked and AI reviewed.

PR Checklist

• [ ] Closes: #38122

[github-actions[bot]]

@check-spelling-bot Report

:red_circle: Please review

See the :open_file_folder: files view, the :scroll:action log, or :memo: job summary for details.

Unrecognized words (1)

unsubscription

These words are not needed and should be removed

iextn localappdata pswd SHELLEXTENSION SHELLNEWVALUE SHGFIICON SHGFILARGEICON

To accept these unrecognized words as correct and remove the previously acknowledged and now absent words, you could run the following commands

... in a clone of the [email protected]:dcog989/PowerToys.git repository on the Color-Picker-Harden branch (:information_source: how do I use this?):

curl -s -S -L 'https://raw.githubusercontent.com/check-spelling/check-spelling/67debf50669c7fc76fc8f5d7f996384535a72b77/apply.pl' |
perl - 'https://github.com/microsoft/PowerToys/actions/runs/14866907314/attempts/1'

Errors (2)

See the :open_file_folder: files view, the :scroll:action log, or :memo: job summary for details.

:x: Errors	Count
:x: ignored-expect-variant	2
:warning: no-newline-at-eof	1

See :x: Event descriptions for more information.

If the flagged items are :exploding_head: false positives

If items relate to a ...

• binary file (or some other file you wouldn't want to check at all).

  Please add a file path to the excludes.txt file matching the containing file.

  File paths are Perl 5 Regular Expressions - you can test yours before committing to verify it will match your files.

  ^ refers to the file's path from the root of the repository, so ^README\.md$ would exclude README.md (on whichever branch you're using).

• well-formed pattern.

  If you can write a pattern that would match it, try adding it to the patterns.txt file.

  Patterns are Perl 5 Regular Expressions - you can test yours before committing to verify it will match your lines.

  Note that patterns can't match multiline strings.