Removed Steamworks.NET dependency

ShareX.Steam/Launcher.cs

@@ -23,7 +23,6 @@
 
 #endregion License Information (GPL v3)
 
-using Steamworks;
 using System;
 using System.Diagnostics;
 using System.IO;

ShareX.Steam/ShareX.Steam.csproj

@@ -68,10 +68,6 @@
     <ErrorReport>prompt</ErrorReport>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="Steamworks.NET, Version=7.0.0.0, Culture=neutral, processorArchitecture=x86">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>.\Steamworks.NET.dll</HintPath>
-    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Drawing" />
@@ -86,6 +82,7 @@
     <Compile Include="Launcher.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="SteamAPI.cs" />
   </ItemGroup>
   <ItemGroup>
     <None Include="app.config" />

ShareX.Steam/SteamAPI.cs

@@ -0,0 +1,54 @@
+#region License Information (GPL v3)
+
+/*
+    ShareX - A program that allows you to take screenshots and share any file type
+    Copyright (c) 2007-2023 ShareX Team
+
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License
+    as published by the Free Software Foundation; either version 2
+    of the License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+    Optionally you can also view the license at <http://www.gnu.org/licenses/>.
+*/
+
+#endregion License Information (GPL v3)
+
+using System.Runtime.InteropServices;
+
+namespace ShareX.Steam
+{
+    internal static class SteamAPI
+    {
+        private const string LibraryName = "steam_api";
+
+        /// <summary>
+        /// Initialize the Steamworks SDK.
+        /// </summary>
+        [DllImport(LibraryName, EntryPoint = "SteamAPI_Init", CallingConvention = CallingConvention.Cdecl)]
+        [return: MarshalAs(UnmanagedType.I1)]
+        public static extern bool Init();
+
+        /// <summary>
+        /// SteamAPI_Shutdown should be called during process shutdown if possible.
+        /// </summary>
+        [DllImport(LibraryName, EntryPoint = "SteamAPI_Shutdown", CallingConvention = CallingConvention.Cdecl)]
+        public static extern void Shutdown();
+
+        /// <summary>
+        /// SteamAPI_IsSteamRunning() returns true if Steam is currently running.
+        /// </summary>
+        [DllImport(LibraryName, EntryPoint = "SteamAPI_IsSteamRunning", CallingConvention = CallingConvention.Cdecl)]
+        [return: MarshalAs(UnmanagedType.I1)]
+        public static extern bool IsSteamRunning();
+    }
+}

ShareX/Forms/AboutForm.cs

@@ -108,7 +108,6 @@ ImageListView: https://github.com/oozcitak/imagelistview
 FFmpeg: https://www.ffmpeg.org
 Recorder devices: https://github.com/rdp/screen-capture-recorder-to-video-windows-free
 FluentFTP: https://github.com/robinrodricks/FluentFTP
-Steamworks.NET: https://github.com/rlabrecque/Steamworks.NET
 ZXing.Net: https://github.com/micjahn/ZXing.Net
 MegaApiClient: https://github.com/gpailler/MegaApiClient
 Inno Setup Dependency Installer: https://github.com/DomGries/InnoDependencyInstaller