Add supported OS platform annotations

ElectronNET.API/App.cs

@@ -7,6 +7,11 @@ using System.Runtime.InteropServices;
 using System.Threading;
 using System.Threading.Tasks;
 using ElectronNET.API.Extensions;
+using System.Runtime.Versioning;
+
+//TODO: Implement app.showEmojiPanel and app.isEmojiPanelSupported:  https://www.electronjs.org/docs/api/app#appshowemojipanel-macos-windows
+//TODO: Implement app.moveToApplicationsFolder: https://www.electronjs.org/docs/api/app#appmovetoapplicationsfolderoptions-macos
+//TODO: Implement apprunningUnderRosettaTranslation: https://www.electronjs.org/docs/api/app#apprunningunderrosettatranslation-macos-readonly
 
 namespace ElectronNET.API
 {
@@ -337,6 +342,8 @@ namespace ElectronNET.API
         /// screen readers, are enabled or disabled. See https://www.chromium.org/developers/design-documents/accessibility for more details.
         /// </summary>
         /// <returns><see langword="true"/> when Chrome's accessibility support is enabled, <see langword="false"/> otherwise.</returns>
+        [SupportedOSPlatform("macos")]
+        [SupportedOSPlatform("windows")]
         public event Action<bool> AccessibilitySupportChanged
         {
             add
@@ -411,6 +418,7 @@ namespace ElectronNET.API
         /// <para/>
         /// On Windows, you have to parse the arguments using App.CommandLine to get the filepath.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public event Action<string> OpenFile
         {
             add
@@ -442,6 +450,7 @@ namespace ElectronNET.API
         /// Emitted when a MacOS user wants to open a URL with the application. Your application's Info.plist file must
         /// define the URL scheme within the CFBundleURLTypes key, and set NSPrincipalClass to AtomApplication.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public event Action<string> OpenUrl
         {
             add
@@ -599,6 +608,7 @@ namespace ElectronNET.API
         /// <para/>
         /// You should seek to use the <see cref="FocusOptions.Steal"/> option as sparingly as possible.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public void Focus(FocusOptions focusOptions)
         {
             BridgeConnector.Emit("appFocus", JObject.FromObject(focusOptions, _jsonSerializer));
@@ -607,6 +617,7 @@ namespace ElectronNET.API
         /// <summary>
         /// Hides all application windows without minimizing them.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public void Hide()
         {
             BridgeConnector.Emit("appHide");
@@ -615,6 +626,7 @@ namespace ElectronNET.API
         /// <summary>
         /// Shows application windows after they were hidden. Does not automatically focus them.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public void Show()
         {
             BridgeConnector.Emit("appShow");
@@ -688,6 +700,8 @@ namespace ElectronNET.API
         /// list from the task bar, and on macOS you can visit it from dock menu.
         /// </summary>
         /// <param name="path">Path to add.</param>
+        [SupportedOSPlatform("macos")]
+        [SupportedOSPlatform("windows")]
         public void AddRecentDocument(string path)
         {
             BridgeConnector.Emit("appAddRecentDocument", path);
@@ -696,6 +710,8 @@ namespace ElectronNET.API
         /// <summary>
         /// Clears the recent documents list.
         /// </summary>
+        [SupportedOSPlatform("macos")]
+        [SupportedOSPlatform("windows")]
         public void ClearRecentDocuments()
         {
             BridgeConnector.Emit("appClearRecentDocuments");
@@ -726,6 +742,8 @@ namespace ElectronNET.API
         /// call this method with electron as the parameter.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Whether the call succeeded.</returns>
+        [SupportedOSPlatform("macos")]
+        [SupportedOSPlatform("windows")]
         public async Task<bool> SetAsDefaultProtocolClientAsync(string protocol, CancellationToken cancellationToken = default)
         {
             return await SetAsDefaultProtocolClientAsync(protocol, null, null, cancellationToken);
@@ -757,6 +775,8 @@ namespace ElectronNET.API
         /// <param name="path">The path to the Electron executable. Defaults to process.execPath</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Whether the call succeeded.</returns>
+        [SupportedOSPlatform("macos")]
+        [SupportedOSPlatform("windows")]
         public async Task<bool> SetAsDefaultProtocolClientAsync(string protocol, string path, CancellationToken cancellationToken = default)
         {
             return await SetAsDefaultProtocolClientAsync(protocol, path, null, cancellationToken);
@@ -789,6 +809,8 @@ namespace ElectronNET.API
         /// <param name="args">Arguments passed to the executable. Defaults to an empty array.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Whether the call succeeded.</returns>
+        [SupportedOSPlatform("macos")]
+        [SupportedOSPlatform("windows")]
         public Task<bool> SetAsDefaultProtocolClientAsync(string protocol, string path, string[] args, CancellationToken cancellationToken = default) => BridgeConnector.OnResult<bool>("appSetAsDefaultProtocolClient", "appSetAsDefaultProtocolClientCompleted", cancellationToken, protocol, path, args);
 
         /// <summary>
@@ -798,6 +820,8 @@ namespace ElectronNET.API
         /// <param name="protocol">The name of your protocol, without ://.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Whether the call succeeded.</returns>
+        [SupportedOSPlatform("macos")]
+        [SupportedOSPlatform("windows")]
         public async Task<bool> RemoveAsDefaultProtocolClientAsync(string protocol, CancellationToken cancellationToken = default)
         {
             return await RemoveAsDefaultProtocolClientAsync(protocol, null, null, cancellationToken);
@@ -811,6 +835,8 @@ namespace ElectronNET.API
         /// <param name="path">Defaults to process.execPath.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Whether the call succeeded.</returns>
+        [SupportedOSPlatform("macos")]
+        [SupportedOSPlatform("windows")]
         public async Task<bool> RemoveAsDefaultProtocolClientAsync(string protocol, string path, CancellationToken cancellationToken = default)
         {
             return await RemoveAsDefaultProtocolClientAsync(protocol, path, null, cancellationToken);
@@ -825,6 +851,8 @@ namespace ElectronNET.API
         /// <param name="args">Defaults to an empty array.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Whether the call succeeded.</returns>
+        [SupportedOSPlatform("macos")]
+        [SupportedOSPlatform("windows")]
         public Task<bool> RemoveAsDefaultProtocolClientAsync(string protocol, string path, string[] args, CancellationToken cancellationToken = default) => BridgeConnector.OnResult<bool>("appRemoveAsDefaultProtocolClient", "appRemoveAsDefaultProtocolClientCompleted", cancellationToken, protocol, path, args);
 
 
@@ -841,6 +869,8 @@ namespace ElectronNET.API
         /// <param name="protocol">The name of your protocol, without ://.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Whether the current executable is the default handler for a protocol (aka URI scheme).</returns>
+        [SupportedOSPlatform("macos")]
+        [SupportedOSPlatform("windows")]
         public async Task<bool> IsDefaultProtocolClientAsync(string protocol, CancellationToken cancellationToken = default)
         {
             return await IsDefaultProtocolClientAsync(protocol, null, null, cancellationToken);
@@ -860,6 +890,8 @@ namespace ElectronNET.API
         /// <param name="path">Defaults to process.execPath.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Whether the current executable is the default handler for a protocol (aka URI scheme).</returns>
+        [SupportedOSPlatform("macos")]
+        [SupportedOSPlatform("windows")]
         public async Task<bool> IsDefaultProtocolClientAsync(string protocol, string path, CancellationToken cancellationToken = default)
         {
             return await IsDefaultProtocolClientAsync(protocol, path, null, cancellationToken);
@@ -880,6 +912,8 @@ namespace ElectronNET.API
         /// <param name="args">Defaults to an empty array.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Whether the current executable is the default handler for a protocol (aka URI scheme).</returns>
+        [SupportedOSPlatform("macos")]
+        [SupportedOSPlatform("windows")]
         public Task<bool> IsDefaultProtocolClientAsync(string protocol, string path, string[] args, CancellationToken cancellationToken = default) => BridgeConnector.OnResult<bool>("appIsDefaultProtocolClient", "appIsDefaultProtocolClientCompleted", cancellationToken, protocol, path, args);
 
 
@@ -891,6 +925,7 @@ namespace ElectronNET.API
         /// <param name="userTasks">Array of <see cref="UserTask"/> objects.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Whether the call succeeded.</returns>
+        [SupportedOSPlatform("windows")]
         public Task<bool> SetUserTasksAsync(UserTask[] userTasks, CancellationToken cancellationToken = default) => BridgeConnector.OnResult<bool>("appSetUserTasks", "appSetUserTasksCompleted", cancellationToken, JArray.FromObject(userTasks, _jsonSerializer));
 
         /// <summary>
@@ -898,6 +933,7 @@ namespace ElectronNET.API
         /// </summary>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Jump List settings.</returns>
+        [SupportedOSPlatform("windows")]
         public Task<JumpListSettings> GetJumpListSettingsAsync(CancellationToken cancellationToken = default) => BridgeConnector.OnResult<JumpListSettings>("appGetJumpListSettings", "appGetJumpListSettingsCompleted", cancellationToken);
 
         /// <summary>
@@ -916,6 +952,7 @@ namespace ElectronNET.API
         /// omitted from the Jump List. The list of removed items can be obtained using <see cref="GetJumpListSettingsAsync"/>.
         /// </summary>
         /// <param name="categories">Array of <see cref="JumpListCategory"/> objects.</param>
+        [SupportedOSPlatform("windows")]
         public void SetJumpList(JumpListCategory[] categories)
         {
             BridgeConnector.Emit("appSetJumpList", JArray.FromObject(categories, _jsonSerializer));
@@ -991,6 +1028,7 @@ namespace ElectronNET.API
         /// </summary>
         /// <param name="type">Uniquely identifies the activity. Maps to <see href="https://developer.apple.com/library/ios/documentation/Foundation/Reference/NSUserActivity_Class/index.html#//apple_ref/occ/instp/NSUserActivity/activityType">NSUserActivity.activityType</see>.</param>
         /// <param name="userInfo">App-specific state to store for use by another device.</param>
+        [SupportedOSPlatform("macos")]
         public void SetUserActivity(string type, object userInfo)
         {
             SetUserActivity(type, userInfo, null);
@@ -1008,6 +1046,7 @@ namespace ElectronNET.API
         /// <param name="webpageUrl">
         /// The webpage to load in a browser if no suitable app is installed on the resuming device. The scheme must be http or https.
         /// </param>
+        [SupportedOSPlatform("macos")]
         public void SetUserActivity(string type, object userInfo, string webpageUrl)
         {
             BridgeConnector.Emit("appSetUserActivity", type, userInfo, webpageUrl);
@@ -1017,12 +1056,14 @@ namespace ElectronNET.API
         /// The type of the currently running activity.
         /// </summary>
         /// <param name="cancellationToken">The cancellation token.</param>
+        [SupportedOSPlatform("macos")] 
         public Task<string> GetCurrentActivityTypeAsync(CancellationToken cancellationToken = default) => BridgeConnector.OnResult<string>("appGetCurrentActivityType", "appGetCurrentActivityTypeCompleted", cancellationToken);
 
 
         /// <summary>
         /// Invalidates the current <see href="https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/Handoff/HandoffFundamentals/HandoffFundamentals.html">Handoff</see> user activity.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public void InvalidateCurrentActivity()
         {
             BridgeConnector.Emit("appInvalidateCurrentActivity");
@@ -1031,6 +1072,7 @@ namespace ElectronNET.API
         /// <summary>
         /// Marks the current <see href="https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/Handoff/HandoffFundamentals/HandoffFundamentals.html">Handoff</see> user activity as inactive without invalidating it.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public void ResignCurrentActivity()
         {
             BridgeConnector.Emit("appResignCurrentActivity");
@@ -1040,6 +1082,7 @@ namespace ElectronNET.API
         /// Changes the <see href="https://msdn.microsoft.com/en-us/library/windows/desktop/dd378459(v=vs.85).aspx">Application User Model ID</see> to id.
         /// </summary>
         /// <param name="id">Model Id.</param>
+        [SupportedOSPlatform("windows")]
         public void SetAppUserModelId(string id)
         {
             BridgeConnector.Emit("appSetAppUserModelId", id);
@@ -1054,6 +1097,7 @@ namespace ElectronNET.API
         /// <param name="options"></param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Result of import. Value of 0 indicates success.</returns>
+        [SupportedOSPlatform("linux")]
         public Task<int> ImportCertificateAsync(ImportCertificateOptions options, CancellationToken cancellationToken = default) => BridgeConnector.OnResult<int>("appImportCertificate", "appImportCertificateCompleted", cancellationToken, JObject.FromObject(options, _jsonSerializer));
 
         /// <summary>
@@ -1084,12 +1128,16 @@ namespace ElectronNET.API
         /// <param name="count">Counter badge.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>Whether the call succeeded.</returns>
+        [SupportedOSPlatform("linux")]
+        [SupportedOSPlatform("macos")]
         public Task<bool> SetBadgeCountAsync(int count, CancellationToken cancellationToken = default) => BridgeConnector.OnResult<bool>("appSetBadgeCount", "appSetBadgeCountCompleted", cancellationToken, count);
 
         /// <summary>
         /// The current value displayed in the counter badge.
         /// </summary>
         /// <param name="cancellationToken">The cancellation token.</param>
+        [SupportedOSPlatform("linux")]
+        [SupportedOSPlatform("macos")]
         public Task<int> GetBadgeCountAsync(CancellationToken cancellationToken = default) => BridgeConnector.OnResult<int>("appGetBadgeCount", "appGetBadgeCountCompleted", cancellationToken);
 
         /// <summary>
@@ -1101,12 +1149,15 @@ namespace ElectronNET.API
         /// Whether the current desktop environment is Unity launcher.
         /// </summary>
         /// <param name="cancellationToken">The cancellation token.</param>
+        [SupportedOSPlatform("linux")]
         public Task<bool> IsUnityRunningAsync(CancellationToken cancellationToken = default) => BridgeConnector.OnResult<bool>("appIsUnityRunning", "appIsUnityRunningCompleted", cancellationToken);
 
         /// <summary>
         /// If you provided path and args options to <see cref="SetLoginItemSettings"/> then you need to pass the same
         /// arguments here for <see cref="LoginItemSettings.OpenAtLogin"/> to be set correctly.
         /// </summary>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public async Task<LoginItemSettings> GetLoginItemSettingsAsync(CancellationToken cancellationToken = default)
         {
             return await GetLoginItemSettingsAsync(null, cancellationToken);
@@ -1118,6 +1169,8 @@ namespace ElectronNET.API
         /// </summary>
         /// <param name="options"></param>
         /// <param name="cancellationToken">The cancellation token.</param>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public Task<LoginItemSettings> GetLoginItemSettingsAsync(LoginItemSettingsOptions options, CancellationToken cancellationToken = default) =>
             options is null ? BridgeConnector.OnResult<LoginItemSettings>("appGetLoginItemSettings", "appGetLoginItemSettingsCompleted", cancellationToken)
                             : BridgeConnector.OnResult<LoginItemSettings>("appGetLoginItemSettings", "appGetLoginItemSettingsCompleted", cancellationToken, JObject.FromObject(options, _jsonSerializer));
@@ -1128,6 +1181,8 @@ namespace ElectronNET.API
         /// you'll want to set the launch path to Update.exe, and pass arguments that specify your application name.
         /// </summary>
         /// <param name="loginSettings"></param>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public void SetLoginItemSettings(LoginSettings loginSettings)
         {
             BridgeConnector.Emit("appSetLoginItemSettings", JObject.FromObject(loginSettings, _jsonSerializer));
@@ -1139,6 +1194,8 @@ namespace ElectronNET.API
         /// See <see href="chromium.org/developers/design-documents/accessibility">Chromium's accessibility docs</see> for more details.
         /// </summary>
         /// <returns><see langword="true"/> if Chrome’s accessibility support is enabled, <see langword="false"/> otherwise.</returns>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public Task<bool> IsAccessibilitySupportEnabledAsync(CancellationToken cancellationToken = default) => BridgeConnector.OnResult<bool>("appIsAccessibilitySupportEnabled", "appIsAccessibilitySupportEnabledCompleted", cancellationToken);
 
 
@@ -1152,6 +1209,8 @@ namespace ElectronNET.API
         /// Note: Rendering accessibility tree can significantly affect the performance of your app. It should not be enabled by default.
         /// </summary>
         /// <param name="enabled">Enable or disable <see href="https://developers.google.com/web/fundamentals/accessibility/semantics-builtin/the-accessibility-tree">accessibility tree</see> rendering.</param>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public void SetAccessibilitySupportEnabled(bool enabled)
         {
             BridgeConnector.Emit("appSetAboutPanelOptions", enabled);

ElectronNET.API/BrowserWindow.cs

@@ -7,8 +7,11 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Runtime.InteropServices;
+using System.Runtime.Versioning;
 using System.Threading.Tasks;
 
+//TODO: Add setTrafficLightPosition and getTrafficLightPosition: https://www.electronjs.org/docs/api/browser-window#winsettrafficlightpositionposition-macos
+
 namespace ElectronNET.API
 {
     /// <summary>
@@ -146,6 +149,7 @@ namespace ElectronNET.API
         /// <summary>
         /// Emitted when window session is going to end due to force shutdown or machine restart or session log off.
         /// </summary>
+        [SupportedOSPlatform("windows")]
         public event Action OnSessionEnd
         {
             add
@@ -465,6 +469,8 @@ namespace ElectronNET.API
         /// <summary>
         /// Emitted when the window is being resized.
         /// </summary>
+        [SupportedOSPlatform("macos")]
+        [SupportedOSPlatform("windows")]
         public event Action OnResize
         {
             add
@@ -496,6 +502,8 @@ namespace ElectronNET.API
         /// 
         /// Note: On macOS this event is just an alias of moved.
         /// </summary>
+        [SupportedOSPlatform("macos")]
+        [SupportedOSPlatform("windows")]
         public event Action OnMove
         {
             add
@@ -523,8 +531,10 @@ namespace ElectronNET.API
         private event Action _move;
 
         /// <summary>
-        /// macOS: Emitted once when the window is moved to a new position.
+        /// Emitted once when the window is moved to a new position.
         /// </summary>
+        [SupportedOSPlatform("macos")]
+        [SupportedOSPlatform("windows")]
         public event Action OnMoved
         {
             add
@@ -676,6 +686,8 @@ namespace ElectronNET.API
         /// and the APPCOMMAND_ prefix is stripped off.e.g.APPCOMMAND_BROWSER_BACKWARD 
         /// is emitted as browser-backward.
         /// </summary>
+        [SupportedOSPlatform("macos")]
+        [SupportedOSPlatform("windows")]
         public event Action<string> OnAppCommand
         {
             add
@@ -705,6 +717,7 @@ namespace ElectronNET.API
         /// <summary>
         /// Emitted when scroll wheel event phase has begun.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public event Action OnScrollTouchBegin
         {
             add
@@ -734,6 +747,7 @@ namespace ElectronNET.API
         /// <summary>
         /// Emitted when scroll wheel event phase has ended.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public event Action OnScrollTouchEnd
         {
             add
@@ -763,6 +777,7 @@ namespace ElectronNET.API
         /// <summary>
         /// Emitted when scroll wheel event phase filed upon reaching the edge of element.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public event Action OnScrollTouchEdge
         {
             add
@@ -792,6 +807,7 @@ namespace ElectronNET.API
         /// <summary>
         /// Emitted on 3-finger swipe. Possible directions are up, right, down, left.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public event Action<string> OnSwipe
         {
             add
@@ -821,6 +837,7 @@ namespace ElectronNET.API
         /// <summary>
         /// Emitted when the window opens a sheet.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public event Action OnSheetBegin
         {
             add
@@ -850,6 +867,7 @@ namespace ElectronNET.API
         /// <summary>
         /// Emitted when the window has closed a sheet.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public event Action OnSheetEnd
         {
             add
@@ -879,6 +897,7 @@ namespace ElectronNET.API
         /// <summary>
         /// Emitted when the native new tab button is clicked.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public event Action OnNewWindowForTab
         {
             add
@@ -1080,17 +1099,41 @@ namespace ElectronNET.API
         /// </summary>
         /// <param name="aspectRatio">The aspect ratio to maintain for some portion of the content view.</param>
         /// <param name="extraSize">The extra size not to be included while maintaining the aspect ratio.</param>
+        public void SetAspectRatio(int aspectRatio)
+        {
+            BridgeConnector.Emit("browserWindowSetAspectRatio", Id, aspectRatio, new Size() { Height = 0, Width = 0 });
+        }
+
+        /// <summary>
+        /// This will make a window maintain an aspect ratio. The extra size allows a developer to have space, 
+        /// specified in pixels, not included within the aspect ratio calculations. This API already takes into
+        /// account the difference between a window’s size and its content size.
+        ///
+        /// Consider a normal window with an HD video player and associated controls.Perhaps there are 15 pixels
+        /// of controls on the left edge, 25 pixels of controls on the right edge and 50 pixels of controls below
+        /// the player. In order to maintain a 16:9 aspect ratio (standard aspect ratio for HD @1920x1080) within
+        /// the player itself we would call this function with arguments of 16/9 and[40, 50]. The second argument
+        /// doesn’t care where the extra width and height are within the content view–only that they exist. Just 
+        /// sum any extra width and height areas you have within the overall content view.
+        /// </summary>
+        /// <param name="aspectRatio">The aspect ratio to maintain for some portion of the content view.</param>
+        /// <param name="extraSize">The extra size not to be included while maintaining the aspect ratio.</param>
+        [SupportedOSPlatform("macos")]
         public void SetAspectRatio(int aspectRatio, Size extraSize)
         {
             BridgeConnector.Emit("browserWindowSetAspectRatio", Id, aspectRatio, extraSize);
         }
 
+
+
+
         /// <summary>
         /// Uses Quick Look to preview a file at a given path.
         /// </summary>
         /// <param name="path">The absolute path to the file to preview with QuickLook. This is important as 
         /// Quick Look uses the file name and file extension on the path to determine the content type of the 
         /// file to open.</param>
+        [SupportedOSPlatform("macos")]
         public void PreviewFile(string path)
         {
             BridgeConnector.Emit("browserWindowPreviewFile", Id, path);
@@ -1104,6 +1147,7 @@ namespace ElectronNET.API
         /// file to open.</param>
         /// <param name="displayname">The name of the file to display on the Quick Look modal view. This is 
         /// purely visual and does not affect the content type of the file. Defaults to path.</param>
+        [SupportedOSPlatform("macos")]
         public void PreviewFile(string path, string displayname)
         {
             BridgeConnector.Emit("browserWindowPreviewFile", Id, path, displayname);
@@ -1112,6 +1156,7 @@ namespace ElectronNET.API
         /// <summary>
         /// Closes the currently open Quick Look panel.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public void CloseFilePreview()
         {
             BridgeConnector.Emit("browserWindowCloseFilePreview", Id);
@@ -1131,6 +1176,7 @@ namespace ElectronNET.API
         /// </summary>
         /// <param name="bounds"></param>
         /// <param name="animate"></param>
+        [SupportedOSPlatform("macos")]
         public void SetBounds(Rectangle bounds, bool animate)
         {
             BridgeConnector.Emit("browserWindowSetBounds", Id, bounds, animate);
@@ -1159,6 +1205,7 @@ namespace ElectronNET.API
         /// </summary>
         /// <param name="bounds"></param>
         /// <param name="animate"></param>
+        [SupportedOSPlatform("macos")]
         public void SetContentBounds(Rectangle bounds, bool animate)
         {
             BridgeConnector.Emit("browserWindowSetContentBounds", Id, bounds, animate);
@@ -1189,6 +1236,7 @@ namespace ElectronNET.API
         /// <param name="width"></param>
         /// <param name="height"></param>
         /// <param name="animate"></param>
+        [SupportedOSPlatform("macos")]
         public void SetSize(int width, int height, bool animate)
         {
             BridgeConnector.Emit("browserWindowSetSize", Id, width, height, animate);
@@ -1219,6 +1267,7 @@ namespace ElectronNET.API
         /// <param name="width"></param>
         /// <param name="height"></param>
         /// <param name="animate"></param>
+        [SupportedOSPlatform("macos")]
         public void SetContentSize(int width, int height, bool animate)
         {
             BridgeConnector.Emit("browserWindowSetContentSize", Id, width, height, animate);
@@ -1293,6 +1342,8 @@ namespace ElectronNET.API
         /// Sets whether the window can be moved by user. On Linux does nothing.
         /// </summary>
         /// <param name="movable"></param>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public void SetMovable(bool movable)
         {
             BridgeConnector.Emit("browserWindowSetMovable", Id, movable);
@@ -1300,10 +1351,10 @@ namespace ElectronNET.API
 
         /// <summary>
         /// Whether the window can be moved by user.
-        /// 
-        /// On Linux always returns true.
         /// </summary>
         /// <returns>On Linux always returns true.</returns>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public Task<bool> IsMovableAsync()
         {
             return BridgeConnector.OnResult<bool>("browserWindowIsMovable", "browserWindow-isMovable-completed" + Id, Id);
@@ -1313,6 +1364,8 @@ namespace ElectronNET.API
         /// Sets whether the window can be manually minimized by user. On Linux does nothing.
         /// </summary>
         /// <param name="minimizable"></param>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public void SetMinimizable(bool minimizable)
         {
             BridgeConnector.Emit("browserWindowSetMinimizable", Id, minimizable);
@@ -1320,10 +1373,10 @@ namespace ElectronNET.API
 
         /// <summary>
         /// Whether the window can be manually minimized by user.
-        /// 
-        /// On Linux always returns true.
         /// </summary>
         /// <returns>On Linux always returns true.</returns>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public Task<bool> IsMinimizableAsync()
         {
             return BridgeConnector.OnResult<bool>("browserWindowIsMinimizable", "browserWindow-isMinimizable-completed" + Id, Id);
@@ -1333,6 +1386,8 @@ namespace ElectronNET.API
         /// Sets whether the window can be manually maximized by user. On Linux does nothing.
         /// </summary>
         /// <param name="maximizable"></param>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public void SetMaximizable(bool maximizable)
         {
             BridgeConnector.Emit("browserWindowSetMaximizable", Id, maximizable);
@@ -1340,10 +1395,10 @@ namespace ElectronNET.API
 
         /// <summary>
         /// Whether the window can be manually maximized by user.
-        /// 
-        /// On Linux always returns true.
         /// </summary>
         /// <returns>On Linux always returns true.</returns>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public Task<bool> IsMaximizableAsync()
         {
             return BridgeConnector.OnResult<bool>("browserWindowIsMaximizable", "browserWindow-isMaximizable-completed" + Id, Id);
@@ -1371,6 +1426,8 @@ namespace ElectronNET.API
         /// Sets whether the window can be manually closed by user. On Linux does nothing.
         /// </summary>
         /// <param name="closable"></param>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public void SetClosable(bool closable)
         {
             BridgeConnector.Emit("browserWindowSetClosable", Id, closable);
@@ -1378,10 +1435,10 @@ namespace ElectronNET.API
 
         /// <summary>
         /// Whether the window can be manually closed by user.
-        /// 
-        /// On Linux always returns true.
         /// </summary>
         /// <returns>On Linux always returns true.</returns>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public Task<bool> IsClosableAsync()
         {
             return BridgeConnector.OnResult<bool>("browserWindowIsClosable", "browserWindow-isClosable-completed" + Id, Id);
@@ -1407,6 +1464,8 @@ namespace ElectronNET.API
         /// <param name="level">Values include normal, floating, torn-off-menu, modal-panel, main-menu, 
         /// status, pop-up-menu and screen-saver. The default is floating. 
         /// See the macOS docs</param>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public void SetAlwaysOnTop(bool flag, OnTopLevel level)
         {
             BridgeConnector.Emit("browserWindowSetAlwaysOnTop", Id, flag, level.GetDescription());
@@ -1423,6 +1482,7 @@ namespace ElectronNET.API
         /// See the macOS docs</param>
         /// <param name="relativeLevel">The number of layers higher to set this window relative to the given level. 
         /// The default is 0. Note that Apple discourages setting levels higher than 1 above screen-saver.</param>
+        [SupportedOSPlatform("macos")]
         public void SetAlwaysOnTop(bool flag, OnTopLevel level, int relativeLevel)
         {
             BridgeConnector.Emit("browserWindowSetAlwaysOnTop", Id, flag, level.GetDescription(), relativeLevel);
@@ -1468,6 +1528,7 @@ namespace ElectronNET.API
         /// <param name="x"></param>
         /// <param name="y"></param>
         /// <param name="animate"></param>
+        [SupportedOSPlatform("macos")]
         public void SetPosition(int x, int y, bool animate)
         {
             // Workaround Windows 10 / Electron Bug
@@ -1482,7 +1543,7 @@ namespace ElectronNET.API
 
         private bool isWindows10()
         {
-            return RuntimeInformation.OSDescription.Contains("Windows 10");
+            return OperatingSystem.IsWindowsVersionAtLeast(10);
         }
 
         /// <summary>
@@ -1520,6 +1581,7 @@ namespace ElectronNET.API
         /// but you may want to display them beneath a HTML-rendered toolbar.
         /// </summary>
         /// <param name="offsetY"></param>
+        [SupportedOSPlatform("macos")]
         public void SetSheetOffset(float offsetY)
         {
             BridgeConnector.Emit("browserWindowSetSheetOffset", Id, offsetY);
@@ -1532,6 +1594,7 @@ namespace ElectronNET.API
         /// </summary>
         /// <param name="offsetY"></param>
         /// <param name="offsetX"></param>
+        [SupportedOSPlatform("macos")]
         public void SetSheetOffset(float offsetY, float offsetX)
         {
             BridgeConnector.Emit("browserWindowSetSheetOffset", Id, offsetY, offsetX);
@@ -1587,6 +1650,7 @@ namespace ElectronNET.API
         /// and the icon of the file will show in window’s title bar.
         /// </summary>
         /// <param name="filename"></param>
+        [SupportedOSPlatform("macos")]
         public void SetRepresentedFilename(string filename)
         {
             BridgeConnector.Emit("browserWindowSetRepresentedFilename", Id, filename);
@@ -1596,6 +1660,7 @@ namespace ElectronNET.API
         /// The pathname of the file the window represents.
         /// </summary>
         /// <returns></returns>
+        [SupportedOSPlatform("macos")]
         public Task<string> GetRepresentedFilenameAsync()
         {
             return BridgeConnector.OnResult<string>("browserWindowGetRepresentedFilename", "browserWindow-getRepresentedFilename-completed" + Id, Id);
@@ -1606,6 +1671,7 @@ namespace ElectronNET.API
         /// and the icon in title bar will become gray when set to true.
         /// </summary>
         /// <param name="edited"></param>
+        [SupportedOSPlatform("macos")]
         public void SetDocumentEdited(bool edited)
         {
             BridgeConnector.Emit("browserWindowSetDocumentEdited", Id, edited);
@@ -1615,6 +1681,7 @@ namespace ElectronNET.API
         /// Whether the window’s document has been edited.
         /// </summary>
         /// <returns></returns>
+        [SupportedOSPlatform("macos")]
         public Task<bool> IsDocumentEditedAsync()
         {
             return BridgeConnector.OnResult<bool>("browserWindowIsDocumentEdited", "browserWindow-isDocumentEdited-completed" + Id, Id);
@@ -1679,6 +1746,8 @@ namespace ElectronNET.API
         /// setting it to null will remove the menu bar.
         /// </summary>
         /// <param name="menuItems"></param>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("linux")]
         public void SetMenu(MenuItem[] menuItems)
         {
             menuItems.AddMenuItemsId();
@@ -1696,6 +1765,8 @@ namespace ElectronNET.API
         /// <summary>
         /// Remove the window's menu bar.
         /// </summary>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("linux")]
         public void RemoveMenu()
         {
             BridgeConnector.Emit("browserWindowRemoveMenu", Id);
@@ -1729,6 +1800,7 @@ namespace ElectronNET.API
         /// </summary>
         /// <param name="progress"></param>
         /// <param name="progressBarOptions"></param>
+        [SupportedOSPlatform("windows")]
         public void SetProgressBar(double progress, ProgressBarOptions progressBarOptions)
         {
             BridgeConnector.Emit("browserWindowSetProgressBar", Id, progress, progressBarOptions);
@@ -1776,6 +1848,7 @@ namespace ElectronNET.API
         /// </summary>
         /// <param name="thumbarButtons"></param>
         /// <returns>Whether the buttons were added successfully.</returns>
+        [SupportedOSPlatform("windows")]
         public Task<bool> SetThumbarButtonsAsync(ThumbarButton[] thumbarButtons)
         {
             var taskCompletionSource = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);
@@ -1808,6 +1881,7 @@ namespace ElectronNET.API
         /// an empty region: {x: 0, y: 0, width: 0, height: 0}.
         /// </summary>
         /// <param name="rectangle"></param>
+        [SupportedOSPlatform("windows")]
         public void SetThumbnailClip(Rectangle rectangle)
         {
             BridgeConnector.Emit("browserWindowSetThumbnailClip", Id, rectangle);
@@ -1817,6 +1891,7 @@ namespace ElectronNET.API
         /// Sets the toolTip that is displayed when hovering over the window thumbnail in the taskbar.
         /// </summary>
         /// <param name="tooltip"></param>
+        [SupportedOSPlatform("windows")]
         public void SetThumbnailToolTip(string tooltip)
         {
             BridgeConnector.Emit("browserWindowSetThumbnailToolTip", Id, tooltip);
@@ -1829,6 +1904,7 @@ namespace ElectronNET.API
         /// If one of those properties is not set, then neither will be used.
         /// </summary>
         /// <param name="options"></param>
+        [SupportedOSPlatform("windows")]
         public void SetAppDetails(AppDetailsOptions options)
         {
             BridgeConnector.Emit("browserWindowSetAppDetails", Id, options);
@@ -1837,6 +1913,7 @@ namespace ElectronNET.API
         /// <summary>
         /// Same as webContents.showDefinitionForSelection().
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public void ShowDefinitionForSelection()
         {
             BridgeConnector.Emit("browserWindowShowDefinitionForSelection", Id);
@@ -1868,6 +1945,8 @@ namespace ElectronNET.API
         /// users can still bring up the menu bar by pressing the single Alt key.
         /// </summary>
         /// <param name="visible"></param>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("linux")]
         public void SetMenuBarVisibility(bool visible)
         {
             BridgeConnector.Emit("browserWindowSetMenuBarVisibility", Id, visible);
@@ -1877,6 +1956,8 @@ namespace ElectronNET.API
         /// Whether the menu bar is visible.
         /// </summary>
         /// <returns></returns>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("linux")]
         public Task<bool> IsMenuBarVisibleAsync()
         {
             return BridgeConnector.OnResult<bool>("browserWindowIsMenuBarVisible", "browserWindow-isMenuBarVisible-completed" + Id, Id);
@@ -1923,6 +2004,8 @@ namespace ElectronNET.API
         /// On Windows it calls SetWindowDisplayAffinity with WDA_MONITOR.
         /// </summary>
         /// <param name="enable"></param>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public void SetContentProtection(bool enable)
         {
             BridgeConnector.Emit("browserWindowSetContentProtection", Id, enable);
@@ -1932,6 +2015,8 @@ namespace ElectronNET.API
         /// Changes whether the window can be focused.
         /// </summary>
         /// <param name="focusable"></param>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public void SetFocusable(bool focusable)
         {
             BridgeConnector.Emit("browserWindowSetFocusable", Id, focusable);
@@ -1971,6 +2056,7 @@ namespace ElectronNET.API
         /// Controls whether to hide cursor when typing.
         /// </summary>
         /// <param name="autoHide"></param>
+        [SupportedOSPlatform("macos")]
         public void SetAutoHideCursor(bool autoHide)
         {
             BridgeConnector.Emit("browserWindowSetAutoHideCursor", Id, autoHide);
@@ -1983,6 +2069,7 @@ namespace ElectronNET.API
         /// <param name="type">Can be appearance-based, light, dark, titlebar, selection, 
         /// menu, popover, sidebar, medium-light or ultra-dark. 
         /// See the macOS documentation for more details.</param>
+        [SupportedOSPlatform("macos")]
         public void SetVibrancy(Vibrancy type)
         {
             BridgeConnector.Emit("browserWindowSetVibrancy", Id, type.GetDescription());

ElectronNET.API/Clipboard.cs

@@ -2,6 +2,7 @@
 using Newtonsoft.Json;
 using Newtonsoft.Json.Linq;
 using Newtonsoft.Json.Serialization;
+using System.Runtime.Versioning;
 using System.Threading.Tasks;
 
 namespace ElectronNET.API
@@ -93,6 +94,8 @@ namespace ElectronNET.API
         /// be empty strings when the bookmark is unavailable.
         /// </summary>
         /// <returns></returns>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")] 
         public Task<ReadBookmark> ReadBookmarkAsync() => BridgeConnector.OnResult<ReadBookmark>("clipboard-readBookmark", "clipboard-readBookmark-Completed");
 
         /// <summary>
@@ -105,6 +108,8 @@ namespace ElectronNET.API
         /// <param name="title"></param>
         /// <param name="url"></param>
         /// <param name="type"></param>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public void WriteBookmark(string title, string url, string type = "")
         {
             BridgeConnector.Emit("clipboard-writeBookmark", title, url, type);
@@ -116,6 +121,7 @@ namespace ElectronNET.API
         /// find pasteboard whenever the application is activated.
         /// </summary>
         /// <returns></returns>
+        [SupportedOSPlatform("macos")] 
         public Task<string> ReadFindTextAsync() => BridgeConnector.OnResult<string>("clipboard-readFindText", "clipboard-readFindText-Completed");
 
         /// <summary>
@@ -123,6 +129,7 @@ namespace ElectronNET.API
         /// synchronous IPC when called from the renderer process.
         /// </summary>
         /// <param name="text"></param>
+        [SupportedOSPlatform("macos")]
         public void WriteFindText(string text)
         {
             BridgeConnector.Emit("clipboard-writeFindText", text);

ElectronNET.API/Dialog.cs

@@ -4,6 +4,7 @@ using Newtonsoft.Json.Linq;
 using Newtonsoft.Json.Serialization;
 using System;
 using System.Collections.Generic;
+using System.Runtime.Versioning;
 using System.Threading.Tasks;
 using System.Web;
 
@@ -191,6 +192,8 @@ namespace ElectronNET.API
         /// </summary>
         /// <param name="options"></param>
         /// <returns></returns>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public Task ShowCertificateTrustDialogAsync(CertificateTrustDialogOptions options)
         {
             return ShowCertificateTrustDialogAsync(null, options);
@@ -204,6 +207,8 @@ namespace ElectronNET.API
         /// <param name="browserWindow"></param>
         /// <param name="options"></param>
         /// <returns></returns>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public Task ShowCertificateTrustDialogAsync(BrowserWindow browserWindow, CertificateTrustDialogOptions options)
         {
             var taskCompletionSource = new TaskCompletionSource<object>(TaskCreationOptions.RunContinuationsAsynchronously);

ElectronNET.API/Dock.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Runtime.Versioning;
 using System.Threading;
 using System.Threading.Tasks;
 using ElectronNET.API.Entities;
@@ -12,6 +13,7 @@ namespace ElectronNET.API
     /// <summary>
     /// Control your app in the macOS dock.
     /// </summary>
+    [SupportedOSPlatform("macos")]
     public sealed class Dock
     {
         private static Dock _dock;

ElectronNET.API/Electron.cs

@@ -1,4 +1,5 @@
 using Microsoft.Extensions.Logging;
+using System.Runtime.Versioning;
 
 namespace ElectronNET.API
 {
@@ -102,6 +103,7 @@ namespace ElectronNET.API
         /// <summary>
         /// Control your app in the macOS dock.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public static Dock Dock { get { return Dock.Instance; } }
     }
 }

ElectronNET.API/Entities/NotificationAction.cs

@@ -3,6 +3,7 @@
     /// <summary>
     /// 
     /// </summary>
+    [SupportedOSPlatform("macos")]
     public class NotificationAction
     {
         /// <summary>

ElectronNET.API/Entities/NotificationOptions.cs

@@ -1,5 +1,6 @@
 using Newtonsoft.Json;
 using System;
+using System.Runtime.Versioning;
 
 namespace ElectronNET.API.Entities
 {
@@ -17,6 +18,8 @@ namespace ElectronNET.API.Entities
         /// <summary>
         /// A subtitle for the notification, which will be displayed below the title.
         /// </summary>
+        [SupportedOSPlatform("macos")]
+
         public string SubTitle { get; set; }
 
         /// <summary>
@@ -38,38 +41,46 @@ namespace ElectronNET.API.Entities
         /// <summary>
         /// Whether or not to add an inline reply option to the notification.
         /// </summary>
+        [SupportedOSPlatform("macos")] 
         public bool HasReply { get; set; }
 
         /// <summary>
         /// The timeout duration of the notification. Can be 'default' or 'never'.
         /// </summary>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("linux")] 
         public string TimeoutType { get; set; }
 
         /// <summary>
         /// The placeholder to write in the inline reply input field.
         /// </summary>
+        [SupportedOSPlatform("macos")] 
         public string ReplyPlaceholder { get; set; }
 
         /// <summary>
         /// The name of the sound file to play when the notification is shown.
         /// </summary>
+        [SupportedOSPlatform("macos")] 
         public string Sound { get; set; }
 
         /// <summary>
         /// The urgency level of the notification. Can be 'normal', 'critical', or 'low'.
         /// </summary>
+        [SupportedOSPlatform("linux")] 
         public string Urgency { get; set; }
 
         /// <summary>
         /// Actions to add to the notification. Please read the available actions and
         /// limitations in the NotificationAction documentation.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public NotificationAction Actions { get; set; }
 
         /// <summary>
         /// A custom title for the close button of an alert. An empty string will cause the
         /// default localized text to be used.
         /// </summary>
+        [SupportedOSPlatform("macos")] 
         public string CloseButtonText { get; set; }
 
         /// <summary>
@@ -127,6 +138,7 @@ namespace ElectronNET.API.Entities
         /// The string the user entered into the inline reply field
         /// </summary>
         [JsonIgnore]
+        [SupportedOSPlatform("macos")]
         public Action<string> OnReply { get; set; }
 
         /// <summary>
@@ -142,6 +154,7 @@ namespace ElectronNET.API.Entities
         /// macOS only - The index of the action that was activated
         /// </summary>
         [JsonIgnore]
+        [SupportedOSPlatform("macos")]
         public Action<string> OnAction { get; set; }
 
         /// <summary>

ElectronNET.API/Entities/OpenDialogOptions.cs

@@ -1,5 +1,6 @@
 using Newtonsoft.Json;
 using Newtonsoft.Json.Converters;
+using System.Runtime.Versioning;
 
 namespace ElectronNET.API.Entities
 {
@@ -39,6 +40,7 @@ namespace ElectronNET.API.Entities
         /// <summary>
         /// Message to display above input boxes.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public string Message { get; set; }
 
         /// <summary>

ElectronNET.API/Entities/OpenDialogProperty.cs

@@ -1,4 +1,6 @@
-namespace ElectronNET.API.Entities
+using System.Runtime.Versioning;
+
+namespace ElectronNET.API.Entities
 {
     /// <summary>
     /// 
@@ -28,21 +30,66 @@
         /// <summary>
         /// The create directory
         /// </summary>
+        [SupportedOSPlatform("macos")]
         createDirectory,
 
         /// <summary>
         /// The prompt to create
         /// </summary>
+        [SupportedOSPlatform("windows")]
         promptToCreate,
 
         /// <summary>
         /// The no resolve aliases
         /// </summary>
+        [SupportedOSPlatform("macos")]
         noResolveAliases,
 
         /// <summary>
-        /// The treat package as directory
+        /// Treat packages, such as .app folders, as a directory instead of a file.
         /// </summary>
-        treatPackageAsDirectory
+        [SupportedOSPlatform("macos")]
+        treatPackageAsDirectory,
+
+        /// <summary>
+        /// Don't add the item being opened to recent documents list
+        /// </summary>
+        [SupportedOSPlatform("windows")]
+        dontAddToRecent
+    }
+
+    /// <summary>
+    /// 
+    /// </summary>
+    public enum SaveDialogProperty
+    {
+        /// <summary>
+        /// The show hidden files
+        /// </summary>
+        showHiddenFiles,
+
+        /// <summary>
+        /// The create directory
+        /// </summary>
+        [SupportedOSPlatform("macos")]
+        createDirectory,
+
+        /// <summary>
+        /// Treat packages, such as .app folders, as a directory instead of a file.
+        /// </summary>
+        [SupportedOSPlatform("macos")]
+        treatPackageAsDirectory,
+
+        /// <summary>
+        /// Sets whether the user will be presented a confirmation dialog if the user types a file name that already exists.
+        /// </summary>
+        [SupportedOSPlatform("linux")]
+        showOverwriteConfirmation,
+
+        /// <summary>
+        /// Don't add the item being opened to recent documents list
+        /// </summary>
+        [SupportedOSPlatform("windows")]
+        dontAddToRecent
     }
 }

ElectronNET.API/Entities/OpenExternalOptions.cs

@@ -1,5 +1,6 @@
 using System;
 using System.ComponentModel;
+using System.Runtime.Versioning;
 
 namespace ElectronNET.API.Entities
 {
@@ -12,11 +13,13 @@ namespace ElectronNET.API.Entities
         /// <see langword="true"/> to bring the opened application to the foreground. The default is <see langword="true"/>.
         /// </summary>
         [DefaultValue(true)]
+        [SupportedOSPlatform("macos")]
         public bool Activate { get; set; } = true;
 
         /// <summary>
         /// The working directory.
         /// </summary>
+        [SupportedOSPlatform("windows")]
         public string WorkingDirectory { get; set; }
     }
 }

ElectronNET.API/Entities/SaveDialogOptions.cs

@@ -1,4 +1,7 @@
 using ElectronNET.API.Entities;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using System.Runtime.Versioning;
 
 namespace ElectronNET.API
 {
@@ -46,16 +49,26 @@ namespace ElectronNET.API
         /// <summary>
         /// Message to display above text fields.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public string Message { get; set; }
 
         /// <summary>
         /// Custom label for the text displayed in front of the filename text field.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public string NameFieldLabel { get; set; }
 
         /// <summary>
         /// Show the tags input box, defaults to true.
         /// </summary>
+        [SupportedOSPlatform("macos")]
         public bool ShowsTagField { get; set; }
+
+        /// <summary>
+        /// Contains which features the dialog should use. The following values are supported:
+        /// 'openFile' | 'openDirectory' | 'multiSelections' | 'showHiddenFiles' | 'createDirectory' | 'promptToCreate' | 'noResolveAliases' | 'treatPackageAsDirectory'
+        /// </summary>
+        [JsonProperty("properties", ItemConverterType = typeof(StringEnumConverter))]
+        public SaveDialogProperty[] Properties { get; set; }
     }
 }

ElectronNET.API/NativeTheme.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Runtime.Versioning;
 using System.Threading.Tasks;
 using ElectronNET.API.Entities;
 using ElectronNET.API.Extensions;
@@ -114,12 +115,16 @@ namespace ElectronNET.API
         /// A <see cref="bool"/> for if the OS / Chromium currently has high-contrast mode enabled or is
         /// being instructed to show a high-contrast UI.
         /// </summary>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public Task<bool> ShouldUseHighContrastColorsAsync() => BridgeConnector.OnResult<bool>("nativeTheme-shouldUseHighContrastColors", "nativeTheme-shouldUseHighContrastColors-completed");
 
         /// <summary>
         /// A <see cref="bool"/> for if the OS / Chromium currently has an inverted color scheme or is
         /// being instructed to use an inverted color scheme.
         /// </summary>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public Task<bool> ShouldUseInvertedColorSchemeAsync() => BridgeConnector.OnResult<bool>("nativeTheme-shouldUseInvertedColorScheme", "nativeTheme-shouldUseInvertedColorScheme-completed");
 
         /// <summary>

ElectronNET.API/PowerMonitor.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Runtime.Versioning;
 using System.Threading.Tasks;
 
 namespace ElectronNET.API
@@ -11,6 +12,8 @@ namespace ElectronNET.API
         /// <summary>
         /// Emitted when the system is about to lock the screen. 
         /// </summary>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public event Action OnLockScreen
         {
             add
@@ -40,6 +43,8 @@ namespace ElectronNET.API
         /// <summary>
         /// Emitted when the system is about to unlock the screen. 
         /// </summary>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public event Action OnUnLockScreen
         {
             add
@@ -69,6 +74,8 @@ namespace ElectronNET.API
         /// <summary>
         /// Emitted when the system is suspending.
         /// </summary>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public event Action OnSuspend
         {
             add
@@ -98,6 +105,8 @@ namespace ElectronNET.API
         /// <summary>
         /// Emitted when system is resuming.
         /// </summary>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public event Action OnResume
         {
             add
@@ -127,6 +136,8 @@ namespace ElectronNET.API
         /// <summary>
         /// Emitted when the system changes to AC power.
         /// </summary>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public event Action OnAC
         {
             add
@@ -156,6 +167,8 @@ namespace ElectronNET.API
         /// <summary>
         /// Emitted when system changes to battery power.
         /// </summary>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public event Action OnBattery
         {
             add
@@ -189,6 +202,9 @@ namespace ElectronNET.API
         /// order for the app to exit cleanly.If `e.preventDefault()` is called, the app
         /// should exit as soon as possible by calling something like `app.quit()`.
         /// </summary>
+        [SupportedOSPlatform("linux")]
+        [SupportedOSPlatform("macos")]
+
         public event Action OnShutdown
         {
             add

ElectronNET.API/Shell.cs

@@ -4,6 +4,7 @@ using Newtonsoft.Json.Linq;
 using Newtonsoft.Json.Serialization;
 using System.Threading.Tasks;
 using ElectronNET.API.Extensions;
+using System.Runtime.Versioning;
 
 namespace ElectronNET.API
 {
@@ -93,6 +94,7 @@ namespace ElectronNET.API
         /// <param name="url">Max 2081 characters on windows.</param>
         /// <param name="options">Controls the behavior of OpenExternal.</param>
         /// <returns>The error message corresponding to the failure if a failure occurred, otherwise <see cref="string.Empty"/>.</returns>
+
         public Task<string> OpenExternalAsync(string url, OpenExternalOptions options)
         {
             var taskCompletionSource = new TaskCompletionSource<string>(TaskCreationOptions.RunContinuationsAsynchronously);
@@ -141,6 +143,7 @@ namespace ElectronNET.API
         /// <param name="operation">Default is <see cref="ShortcutLinkOperation.Create"/></param>
         /// <param name="options">Structure of a shortcut.</param>
         /// <returns>Whether the shortcut was created successfully.</returns>
+        [SupportedOSPlatform("windows")]
         public Task<bool> WriteShortcutLinkAsync(string shortcutPath, ShortcutLinkOperation operation, ShortcutDetails options)
         {
             return BridgeConnector.OnResult<bool>("shell-writeShortcutLink", "shell-writeShortcutLinkCompleted", shortcutPath, operation.GetDescription(), options);
@@ -152,6 +155,7 @@ namespace ElectronNET.API
         /// </summary>
         /// <param name="shortcutPath">The path tot the shortcut.</param>
         /// <returns><see cref="ShortcutDetails"/> of the shortcut.</returns>
+        [SupportedOSPlatform("windows")]
         public Task<ShortcutDetails> ReadShortcutLinkAsync(string shortcutPath)
         {
             return BridgeConnector.OnResult<ShortcutDetails>("shell-readShortcutLink", "shell-readShortcutLinkCompleted", shortcutPath);

ElectronNET.API/Tray.cs

@@ -5,6 +5,7 @@ using Newtonsoft.Json.Linq;
 using Newtonsoft.Json.Serialization;
 using System;
 using System.Collections.Generic;
+using System.Runtime.Versioning;
 using System.Threading.Tasks;
 
 namespace ElectronNET.API
@@ -12,6 +13,9 @@ namespace ElectronNET.API
     /// <summary>
     /// Add icons and context menus to the system's notification area.
     /// </summary>
+    
+    [SupportedOSPlatform("macos")]
+    [SupportedOSPlatform("windows")]
     public sealed class Tray
     {
         /// <summary>
@@ -46,6 +50,8 @@ namespace ElectronNET.API
         /// <summary>
         /// macOS, Windows: Emitted when the tray icon is right clicked.
         /// </summary>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public event Action<TrayClickEventArgs, Rectangle> OnRightClick
         {
             add
@@ -75,6 +81,8 @@ namespace ElectronNET.API
         /// <summary>
         /// macOS, Windows: Emitted when the tray icon is double clicked.
         /// </summary>
+        [SupportedOSPlatform("windows")]
+        [SupportedOSPlatform("macos")]
         public event Action<TrayClickEventArgs, Rectangle> OnDoubleClick
         {
             add
@@ -104,6 +112,7 @@ namespace ElectronNET.API
         /// <summary>
         /// Windows: Emitted when the tray balloon shows.
         /// </summary>
+        [SupportedOSPlatform("windows")]
         public event Action OnBalloonShow
         {
             add
@@ -133,6 +142,7 @@ namespace ElectronNET.API
         /// <summary>
         /// Windows: Emitted when the tray balloon is clicked.
         /// </summary>
+        [SupportedOSPlatform("windows")]
         public event Action OnBalloonClick
         {
             add
@@ -163,6 +173,8 @@ namespace ElectronNET.API
         /// Windows: Emitted when the tray balloon is closed 
         /// because of timeout or user manually closes it.
         /// </summary>
+
+        [SupportedOSPlatform("windows")]
         public event Action OnBalloonClosed
         {
             add
@@ -285,6 +297,7 @@ namespace ElectronNET.API
         /// Sets the image associated with this tray icon when pressed on macOS.
         /// </summary>
         /// <param name="image"></param>
+        [SupportedOSPlatform("macos")]
         public void SetPressedImage(string image)
         {
             BridgeConnector.Emit("tray-setPressedImage", image);
@@ -303,6 +316,7 @@ namespace ElectronNET.API
         /// macOS: Sets the title displayed aside of the tray icon in the status bar.
         /// </summary>
         /// <param name="title"></param>
+        [SupportedOSPlatform("macos")]
         public void SetTitle(string title)
         {
             BridgeConnector.Emit("tray-setTitle", title);
@@ -312,6 +326,7 @@ namespace ElectronNET.API
         /// Windows: Displays a tray balloon.
         /// </summary>
         /// <param name="options"></param>
+        [SupportedOSPlatform("windows")]
         public void DisplayBalloon(DisplayBalloonOptions options)
         {
             BridgeConnector.Emit("tray-displayBalloon", options);