From f31e390adbc0ac361c8f3848ba17ec3e4b7e9625 Mon Sep 17 00:00:00 2001
From: Jeremy Pritts <jrpritts7@gmail.com>
Date: Sat, 10 Sep 2022 13:28:21 -0400
Subject: [PATCH] Mark DirectSoundOut as Windows only and add a .NET 6 target

---
 NAudio.Core/NAudio.Core.csproj                 | 2 +-
 NAudio.Core/Wave/WaveOutputs/DirectSoundOut.cs | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/NAudio.Core/NAudio.Core.csproj b/NAudio.Core/NAudio.Core.csproj
index e122e9e9..c395552f 100644
--- a/NAudio.Core/NAudio.Core.csproj
+++ b/NAudio.Core/NAudio.Core.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFrameworks>netstandard2.0;net6.0</TargetFrameworks>
     <Authors>Mark Heath</Authors>
     <Version>2.1.0</Version>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
diff --git a/NAudio.Core/Wave/WaveOutputs/DirectSoundOut.cs b/NAudio.Core/Wave/WaveOutputs/DirectSoundOut.cs
index 0c14e3fa..0eec5000 100644
--- a/NAudio.Core/Wave/WaveOutputs/DirectSoundOut.cs
+++ b/NAudio.Core/Wave/WaveOutputs/DirectSoundOut.cs
@@ -12,6 +12,9 @@ namespace NAudio.Wave
     /// Contact author: Alexandre Mutel - alexandre_mutel at yahoo.fr
     /// Modified by: Graham "Gee" Plumb
     /// </summary>
+#if NET5_0_OR_GREATER
+    [System.Runtime.Versioning.SupportedOSPlatform("windows")]
+#endif
     public class DirectSoundOut : IWavePlayer
     {
         /// <summary>
@@ -69,7 +72,7 @@ private static bool EnumCallback(IntPtr lpGuid, IntPtr lpcstrDescription, IntPtr
                 device.Guid = new Guid(guidBytes);
             }
             device.Description =  Marshal.PtrToStringAnsi(lpcstrDescription);
-            if (lpcstrModule != null)
+            if (lpcstrModule != IntPtr.Zero)
             {
                 device.ModuleName = Marshal.PtrToStringAnsi(lpcstrModule);
             }