1 files changed, 49 insertions, 0 deletions

diff --git a/src/api/burn/WixToolset.BootstrapperApplicationApi/NativeMethods.cs b/src/api/burn/WixToolset.BootstrapperApplicationApi/NativeMethods.cs
new file mode 100644
index 00000000..4ef9f35e
--- /dev/null
+++ b/src/api/burn/WixToolset.BootstrapperApplicationApi/NativeMethods.cs
@@ -0,0 +1,49 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolset.BootstrapperApplicationApi
+{
+    using System;
+    using System.Runtime.InteropServices;
+
+    /// <summary>
+    /// Contains native constants, functions, and structures for this assembly.
+    /// </summary>
+    internal static class NativeMethods
+    {
+        #region Error Constants
+        internal const int S_OK = 0;
+        internal const int E_MOREDATA = unchecked((int)0x800700ea);
+        internal const int E_INSUFFICIENT_BUFFER = unchecked((int)0x8007007a);
+        internal const int E_CANCELLED = unchecked((int)0x800704c7);
+        internal const int E_ALREADYINITIALIZED = unchecked((int)0x800704df);
+        internal const int E_NOTFOUND = unchecked((int)0x80070490);
+        internal const int E_NOTIMPL = unchecked((int)0x80004001);
+        internal const int E_UNEXPECTED = unchecked((int)0x8000ffff);
+        #endregion
+
+        #region Functions
+        [DllImport("shell32.dll", ExactSpelling = true, SetLastError = true)]
+        internal static extern IntPtr CommandLineToArgvW(
+            [MarshalAs(UnmanagedType.LPWStr)] string lpCmdLine,
+            out int pNumArgs
+            );
+
+        [DllImport("kernel32.dll", ExactSpelling = true, SetLastError = true)]
+        internal static extern IntPtr LocalFree(
+            IntPtr hMem
+            );
+        #endregion
+    }
+
+    #region SafeHandles
+    internal abstract class SafeHandleZeroIsDefaultAndInvalid : SafeHandle
+    {
+        public SafeHandleZeroIsDefaultAndInvalid() : base(IntPtr.Zero, true) { }
+
+        public override bool IsInvalid
+        {
+            get { return this.handle == IntPtr.Zero; }
+        }
+    }
+    #endregion
+}