From 73600eea94bfb695c52f7746c3523b5ce332d567 Mon Sep 17 00:00:00 2001
From: Andrew Murray <radarhere@users.noreply.github.com>
Date: Tue, 29 Oct 2024 00:34:24 +1100
Subject: [PATCH 1/3] Detach PyQt6 QPixmap instance before returning

---
 .github/workflows/test-windows.yml | 6 ++++++
 src/PIL/ImageQt.py                 | 5 ++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/test-windows.yml b/.github/workflows/test-windows.yml
index c8842e37b..f6d0aeb1d 100644
--- a/.github/workflows/test-windows.yml
+++ b/.github/workflows/test-windows.yml
@@ -80,6 +80,12 @@ jobs:
         pytest-cov
         pytest-timeout
 
+    - name: Install CPython dependencies
+      if: "!contains(matrix.python-version, 'pypy')"
+      run: >
+        python3 -m pip install
+        PyQt6
+
     - name: Install dependencies
       id: install
       run: |
diff --git a/src/PIL/ImageQt.py b/src/PIL/ImageQt.py
index a3d647138..2cc40f855 100644
--- a/src/PIL/ImageQt.py
+++ b/src/PIL/ImageQt.py
@@ -213,4 +213,7 @@ def toqimage(im: Image.Image | str | QByteArray) -> ImageQt:
 
 def toqpixmap(im: Image.Image | str | QByteArray) -> QPixmap:
     qimage = toqimage(im)
-    return getattr(QPixmap, "fromImage")(qimage)
+    pixmap = getattr(QPixmap, "fromImage")(qimage)
+    if qt_version == "6":
+        pixmap.detach()
+    return pixmap

From e5706a590b16fcfc2b826de19addc2e33d3c3508 Mon Sep 17 00:00:00 2001
From: Andrew Murray <radarhere@users.noreply.github.com>
Date: Tue, 29 Oct 2024 09:04:06 +1100
Subject: [PATCH 2/3] Upgraded multibuild to remove openjpeg lib64 copy

---
 .github/workflows/wheels-dependencies.sh | 3 ---
 wheels/multibuild                        | 2 +-
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/.github/workflows/wheels-dependencies.sh b/.github/workflows/wheels-dependencies.sh
index 7970d4d15..3a80a7e74 100755
--- a/.github/workflows/wheels-dependencies.sh
+++ b/.github/workflows/wheels-dependencies.sh
@@ -91,9 +91,6 @@ function build {
     build_libpng
     build_lcms2
     build_openjpeg
-    if [ -f /usr/local/lib64/libopenjp2.so ]; then
-        cp /usr/local/lib64/libopenjp2.so /usr/local/lib
-    fi
 
     ORIGINAL_CFLAGS=$CFLAGS
     CFLAGS="$CFLAGS -O3 -DNDEBUG"
diff --git a/wheels/multibuild b/wheels/multibuild
index 452dd2d17..9a9d1275f 160000
--- a/wheels/multibuild
+++ b/wheels/multibuild
@@ -1 +1 @@
-Subproject commit 452dd2d1705f6b2375369a6570c415beb3163f70
+Subproject commit 9a9d1275f025f737cdaa3c451ba07129dd95f361

From 2d1d801ec032bfb760bede88da6dcaab5ff3c75e Mon Sep 17 00:00:00 2001
From: Andrew Murray <radarhere@users.noreply.github.com>
Date: Tue, 29 Oct 2024 22:15:56 +1100
Subject: [PATCH 3/3] Update CHANGES.rst [ci skip]

---
 CHANGES.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/CHANGES.rst b/CHANGES.rst
index 87945bc84..9d45e2214 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -5,6 +5,9 @@ Changelog (Pillow)
 11.1.0 (unreleased)
 -------------------
 
+- Detach PyQt6 QPixmap instance before returning #8509
+  [radarhere]
+
 - Corrected EMF DPI #8485
   [radarhere]