From 76305b7829aee79a4b31381c6f706329dc197b21 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 21 Jul 2026 20:04:18 +0000
Subject: [PATCH 1/3] Initial plan


From 9695953ae3ac0c0f4fe71742d5bd3c6df767abae Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 21 Jul 2026 20:06:21 +0000
Subject: [PATCH 2/3] Add CreateTestClass and DeleteTestClass P/Invoke
 declarations

---
 .../csharp/PInvokeLibManaged/NativeMethods.cs             | 6 ++++++
 .../vb/PInvokeLibManaged/NativeMethods.vb                 | 8 ++++++++
 2 files changed, 14 insertions(+)

diff --git a/docs/standard/native-interop/snippets/marshalling-data-with-platform-invoke/csharp/PInvokeLibManaged/NativeMethods.cs b/docs/standard/native-interop/snippets/marshalling-data-with-platform-invoke/csharp/PInvokeLibManaged/NativeMethods.cs
index 95ad89611b78d..62856b31866d4 100644
--- a/docs/standard/native-interop/snippets/marshalling-data-with-platform-invoke/csharp/PInvokeLibManaged/NativeMethods.cs
+++ b/docs/standard/native-interop/snippets/marshalling-data-with-platform-invoke/csharp/PInvokeLibManaged/NativeMethods.cs
@@ -86,5 +86,11 @@ internal static extern int TestArrayOfStructs2(
 
     [DllImport("PinvokeLib.dll", CallingConvention = CallingConvention.Cdecl)]
     internal static extern void TestArrayInStruct(ref MyArrayStruct myStruct);
+
+    [DllImport("PinvokeLib.dll", CallingConvention = CallingConvention.Cdecl)]
+    internal static extern unsafe void* CreateTestClass();
+
+    [DllImport("PinvokeLib.dll", CallingConvention = CallingConvention.Cdecl)]
+    internal static extern unsafe void DeleteTestClass(void* instance);
 }
 // </NativeMethods>
diff --git a/docs/standard/native-interop/snippets/marshalling-data-with-platform-invoke/vb/PInvokeLibManaged/NativeMethods.vb b/docs/standard/native-interop/snippets/marshalling-data-with-platform-invoke/vb/PInvokeLibManaged/NativeMethods.vb
index bbccef564a151..3234efc5ef2be 100644
--- a/docs/standard/native-interop/snippets/marshalling-data-with-platform-invoke/vb/PInvokeLibManaged/NativeMethods.vb
+++ b/docs/standard/native-interop/snippets/marshalling-data-with-platform-invoke/vb/PInvokeLibManaged/NativeMethods.vb
@@ -90,5 +90,13 @@ Friend Class NativeMethods
     <DllImport("PinvokeLib.dll", CallingConvention:=CallingConvention.Cdecl)>
     Friend Shared Sub TestArrayInStruct(ByRef myStruct As MyArrayStruct)
     End Sub
+
+    <DllImport("PinvokeLib.dll", CallingConvention:=CallingConvention.Cdecl)>
+    Friend Shared Function CreateTestClass() As IntPtr
+    End Function
+
+    <DllImport("PinvokeLib.dll", CallingConvention:=CallingConvention.Cdecl)>
+    Friend Shared Sub DeleteTestClass(ByVal instance As IntPtr)
+    End Sub
 End Class
 ' </NativeMethods>

From b3626d9cd1a76b906a7a5dc8430d475f35c35230 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Tue, 21 Jul 2026 21:02:09 +0000
Subject: [PATCH 3/3] Add AllowUnsafeBlocks=true to PInvokeLibManaged.csproj

---
 .../csharp/PInvokeLibManaged/PInvokeLibManaged.csproj            | 1 +
 1 file changed, 1 insertion(+)

diff --git a/docs/standard/native-interop/snippets/marshalling-data-with-platform-invoke/csharp/PInvokeLibManaged/PInvokeLibManaged.csproj b/docs/standard/native-interop/snippets/marshalling-data-with-platform-invoke/csharp/PInvokeLibManaged/PInvokeLibManaged.csproj
index ed9781c223ab9..598db52879f65 100644
--- a/docs/standard/native-interop/snippets/marshalling-data-with-platform-invoke/csharp/PInvokeLibManaged/PInvokeLibManaged.csproj
+++ b/docs/standard/native-interop/snippets/marshalling-data-with-platform-invoke/csharp/PInvokeLibManaged/PInvokeLibManaged.csproj
@@ -5,6 +5,7 @@
     <TargetFramework>net10.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
 
 </Project>