Code Quality: Merge P/Invoke into single partial class (#15075)

Author: 0x5bfa

src/Files.App/Data/Contracts/IDataTransferManagerInterop.cs

@@ -0,0 +1,17 @@
+// Copyright (c) 2024 Files Community
+// Licensed under the MIT License. See the LICENSE.
+
+using System.Runtime.InteropServices;
+
+namespace Files.App.Data.Contracts
+{
+	[ComImport]
+	[Guid("3A3DCD6C-3EAB-43DC-BCDE-45671CE800C8")]
+	[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+	interface IDataTransferManagerInterop
+	{
+		IntPtr GetForWindow([In] IntPtr appWindow, [In] ref Guid riid);
+
+		void ShowShareUIForWindow(IntPtr appWindow);
+	}
+}

src/Files.App/Data/Models/AppModel.cs

@@ -121,7 +121,7 @@ public string PCloudDrivePath
 		/// Gets or sets a value indicating the AppWindow DPI.
 		/// TODO update value if the DPI changes
 		/// </summary>
-		private float _AppWindowDPI = InteropHelpers.GetDpiForWindow(MainWindow.Instance.WindowHandle) / 96f;
+		private float _AppWindowDPI = Win32PInvoke.GetDpiForWindow(MainWindow.Instance.WindowHandle) / 96f;
 		public float AppWindowDPI
 		{
 			get => _AppWindowDPI;

src/Files.App/Data/Models/ItemViewModel.cs

@@ -18,7 +18,7 @@
 using Windows.Storage;
 using Windows.Storage.FileProperties;
 using Windows.Storage.Search;
-using static Files.App.Helpers.NativeDirectoryChangesHelper;
+using static Files.App.Helpers.Win32PInvoke;
 using static Files.Core.Helpers.NativeFindStorageItemHelper;
 using DispatcherQueue = Microsoft.UI.Dispatching.DispatcherQueue;
 using FileAttributes = System.IO.FileAttributes;

src/Files.App/Data/Models/RemovableDevice.cs

@@ -4,7 +4,7 @@
 using System;
 using System.Diagnostics;
 using System.Threading.Tasks;
-using static Files.App.Helpers.NativeIoDeviceControlHelper;
+using static Files.App.Helpers.Win32PInvoke;
 
 namespace Files.App.Data.Models
 {