From 91d0f53d07425910bf70f7803e14480bb0e3e54c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alberto=20Rodr=C3=ADguez?= <rodriguezo.alberto@gmail.com>
Date: Sat, 19 Jul 2025 15:00:03 -0600
Subject: [PATCH 1/2] Update OpenTK

This update makes it easier to clear memory leaks.
---
 .../SkiaSharp.Views.WPF/SkiaSharp.Views.WPF.csproj            | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/source/SkiaSharp.Views/SkiaSharp.Views.WPF/SkiaSharp.Views.WPF.csproj b/source/SkiaSharp.Views/SkiaSharp.Views.WPF/SkiaSharp.Views.WPF.csproj
index abbe34d934..b0bc7e9479 100644
--- a/source/SkiaSharp.Views/SkiaSharp.Views.WPF/SkiaSharp.Views.WPF.csproj
+++ b/source/SkiaSharp.Views/SkiaSharp.Views.WPF/SkiaSharp.Views.WPF.csproj
@@ -15,8 +15,8 @@
     <PackageReference Include="OpenTK.GLWpfControl" Version="3.3.0" NoWarn="NU1701" />
   </ItemGroup>
   <ItemGroup Condition="!$(TargetFramework.StartsWith('net4'))">
-    <PackageReference Include="OpenTK" Version="4.3.0" NoWarn="NU1701" />
-    <PackageReference Include="OpenTK.GLWpfControl" Version="4.2.3" />
+    <PackageReference Include="OpenTK" Version="4.9.4" NoWarn="NU1701" />
+    <PackageReference Include="OpenTK.GLWpfControl" Version="4.3.3" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\..\binding\SkiaSharp\SkiaSharp.csproj" />

From cc7256b242f85eac9802669dc49bcddbbb7e31e9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alberto=20Rodr=C3=ADguez?= <rodriguezo.alberto@gmail.com>
Date: Sat, 19 Jul 2025 15:00:16 -0600
Subject: [PATCH 2/2] Dispose GLWpfControl when SKGLElement is disposed

---
 .../SkiaSharp.Views/SkiaSharp.Views.WPF/SKGLElement.cs   | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/source/SkiaSharp.Views/SkiaSharp.Views.WPF/SKGLElement.cs b/source/SkiaSharp.Views/SkiaSharp.Views.WPF/SKGLElement.cs
index 00993eab5d..cc461301b8 100644
--- a/source/SkiaSharp.Views/SkiaSharp.Views.WPF/SKGLElement.cs
+++ b/source/SkiaSharp.Views/SkiaSharp.Views.WPF/SKGLElement.cs
@@ -215,6 +215,15 @@ private void Release()
 		public void Dispose()
         {
             Dispose(true);
+
+#if NET6_0_OR_GREATER
+			base.Dispose();
+#else
+			// Older version of OpenTK do not implement IDisposable
+			// And there is also a possible memory leak in the base class
+			// https://github.com/opentk/GLWpfControl/issues/126
+			// ToDo: Update OpenTK? manually dispose the base class?
+#endif
 		}
 	}