1 files changed, 18 insertions, 0 deletions
diff --git a/src/mscorlib/corefx/Interop/Windows/mincore/Interop.GetLongPathNameW.cs b/src/mscorlib/corefx/Interop/Windows/mincore/Interop.GetLongPathNameW.cs
new file mode 100644
index 0000000000..d50db6650b
--- /dev/null
+++ b/src/mscorlib/corefx/Interop/Windows/mincore/Interop.GetLongPathNameW.cs
@@ -0,0 +1,18 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System;
+using System.Runtime.InteropServices;
+
+partial class Interop
+{
+    partial class mincore
+    {
+        /// <summary>
+        /// WARNING: This method does not implicitly handle long paths. Use GetFullPath/PathHelper.
+        /// </summary>
+        [DllImport(Libraries.CoreFile_L1, SetLastError = true, CharSet = CharSet.Unicode, BestFitMapping = false, ExactSpelling = true)]
+        internal static extern uint GetLongPathNameW(SafeHandle lpszShortPath, SafeHandle lpszLongPath, uint cchBuffer);
+    }
+}