NET5 support (#312)

Thanks to @Pomianowski

LibreHardwareMonitorLib/Hardware/KernelDriver.cs

@@ -78,7 +78,7 @@ namespace LibreHardwareMonitor.Hardware
             AdvApi32.CloseServiceHandle(service);
             AdvApi32.CloseServiceHandle(manager);
 
-#if !NETSTANDARD2_0
+#if NETFRAMEWORK
             try
             {
                 // restrict the driver access to system (SY) and builtin admins (BA)

LibreHardwareMonitorLib/Hardware/Ring0.cs

@@ -1,7 +1,7 @@
 // This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
 // If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
 // Copyright (C) LibreHardwareMonitor and Contributors.
-// Partial Copyright (C) Michael Möller <mmoeller@openhardwaremonitor.org> and Contributors.
+// Partial Copyright (C) Michael Möller <mmoeller@openhardwaremonitor.org> and Contributors.
 // All Rights Reserved.
 
 using System;
@@ -220,25 +220,25 @@ namespace LibreHardwareMonitor.Hardware
 
             try
             {
-#if NETSTANDARD2_0
-                _isaBusMutex = new Mutex(false, isaMutexName);
-#else
+#if NETFRAMEWORK
                 //mutex permissions set to everyone to allow other software to access the hardware
                 //otherwise other monitoring software cant access
                 var allowEveryoneRule = new MutexAccessRule(new SecurityIdentifier(WellKnownSidType.WorldSid, null), MutexRights.FullControl, AccessControlType.Allow);
                 var securitySettings = new MutexSecurity();
                 securitySettings.AddAccessRule(allowEveryoneRule);
                 _isaBusMutex = new Mutex(false, isaMutexName, out _, securitySettings);
+#else
+                _isaBusMutex = new Mutex(false, isaMutexName);
 #endif
             }
             catch (UnauthorizedAccessException)
             {
                 try
                 {
-#if NETSTANDARD2_0
-                    _isaBusMutex = Mutex.OpenExisting(isaMutexName);
-#else
+#if NETFRAMEWORK
                     _isaBusMutex = Mutex.OpenExisting(isaMutexName, MutexRights.Synchronize);
+#else
+                    _isaBusMutex = Mutex.OpenExisting(isaMutexName);
 #endif
                 }
                 catch
@@ -255,10 +255,10 @@ namespace LibreHardwareMonitor.Hardware
             {
                 try
                 {
-#if NETSTANDARD2_0
-                    _pciBusMutex = Mutex.OpenExisting(pciMutexName);
-#else
+#if NETFRAMEWORK
                     _pciBusMutex = Mutex.OpenExisting(pciMutexName, MutexRights.Synchronize);
+#else
+                    _pciBusMutex = Mutex.OpenExisting(pciMutexName);
 #endif
                 }
                 catch

LibreHardwareMonitorLib/LibreHardwareMonitorLib.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net452;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net452;netstandard2.0;net5.0</TargetFrameworks>
     <AssemblyName>LibreHardwareMonitorLib</AssemblyName>
     <RootNamespace>LibreHardwareMonitor</RootNamespace>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
@@ -26,12 +26,13 @@
     <EmbeddedResource Include="Hardware\WinRing0x64.sys" />
   </ItemGroup>
   <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
-    <PackageReference Include="Microsoft.Win32.Registry">
-      <Version>4.7.0</Version>
-    </PackageReference>
-    <PackageReference Include="System.IO.Ports">
-      <Version>4.7.0</Version>
-    </PackageReference>
+    <PackageReference Include="Microsoft.Win32.Registry" Version="4.7.0" />
+    <PackageReference Include="System.IO.Ports" Version="4.7.0" />
+  </ItemGroup>
+  <ItemGroup Condition="'$(TargetFramework)' == 'net5.0'">
+    <PackageReference Include="Microsoft.Win32.Registry" Version="5.0.0" />
+    <PackageReference Include="System.IO.Ports" Version="5.0.0" />
+    <PackageReference Include="System.Management" Version="5.0.0" />
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="HidSharp" Version="2.1.0" />