1  // Copyright (c) Microsoft Corporation
 2  // The Microsoft Corporation licenses this file to you under the MIT license.
 3  // See the LICENSE file in the project root for more information.
 4  
 5  using System;
 6  using System.Runtime.InteropServices;
 7  using System.Text;
 8  
 9  namespace Microsoft.PowerToys.Settings.UI.Helpers
10  {
11      public static class NativeMethods
12      {
13          private const int WS_POPUP = 1 << 31; // 0x80000000
14          internal const int GWL_STYLE = -16;
15          internal const int WS_CAPTION = 0x00C00000;
16          internal const int SPI_GETDESKWALLPAPER = 0x0073;
17          internal const int SW_SHOWNORMAL = 1;
18          internal const int SW_SHOWMAXIMIZED = 3;
19          internal const int SW_HIDE = 0;
20          internal const int WM_COMMAND = 0x0111; // https://learn.microsoft.com/en-us/windows/win32/menurc/wm-command
21  
22          [DllImport("user32.dll")]
23          internal static extern IntPtr GetActiveWindow();
24  
25          [DllImport("user32.dll")]
26          internal static extern bool SetWindowPlacement(IntPtr hWnd, ref WINDOWPLACEMENT lpwndpl);
27  
28          [DllImport("user32.dll")]
29          internal static extern bool GetWindowPlacement(IntPtr hWnd, out WINDOWPLACEMENT lpwndpl);
30  
31          [DllImport("user32.dll")]
32          internal static extern uint SendInput(uint nInputs, NativeKeyboardHelper.INPUT[] pInputs, int cbSize);
33  
34          [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall, SetLastError = true)]
35          internal static extern short GetAsyncKeyState(int vKey);
36  
37          [DllImport("user32.dll", SetLastError = true)]
38          internal static extern int GetWindowLong(IntPtr hWnd, int nIndex);
39  
40          [DllImport("user32.dll")]
41          internal static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);
42  
43          [DllImport("shell32.dll")]
44          internal static extern IntPtr SHBrowseForFolderW(ref ShellGetFolder.BrowseInformation browseInfo);
45  
46          [DllImport("shell32.dll")]
47          internal static extern int SHGetPathFromIDListW(IntPtr pidl, IntPtr pszPath);
48  
49          [DllImport("Comdlg32.dll", CharSet = CharSet.Unicode)]
50          internal static extern bool GetOpenFileName([In, Out] OpenFileName openFileName);
51  
52          [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
53          internal static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
54  
55          [DllImport("user32.dll")]
56          internal static extern IntPtr SendMessage(IntPtr hWnd, IntPtr msg, UIntPtr wParam, UIntPtr lParam);
57  
58          [DllImport("comdlg32.dll", CharSet = CharSet.Auto, EntryPoint = "ChooseFont", SetLastError = true)]
59          internal static extern bool ChooseFont(IntPtr lpChooseFont);
60  
61          [DllImport("comdlg32.dll", SetLastError = true)]
62          internal static extern int CommDlgExtendedError();
63  
64  #pragma warning disable CA1401 // P/Invokes should not be visible
65          [DllImport("user32.dll")]
66          public static extern bool ShowWindow(System.IntPtr hWnd, int nCmdShow);
67  
68          [DllImport("user32.dll")]
69          public static extern int GetDpiForWindow(System.IntPtr hWnd);
70  
71          [DllImport("user32.dll")]
72          public static extern bool IsWindowVisible(IntPtr hWnd);
73  
74          [DllImport("user32.dll")]
75          public static extern bool AllowSetForegroundWindow(int dwProcessId);
76  
77          [System.Runtime.InteropServices.DllImport("User32.dll")]
78          public static extern bool SetForegroundWindow(IntPtr handle);
79  
80          [DllImport("kernel32.dll", CharSet = CharSet.Unicode)]
81          public static extern IntPtr LoadLibrary(string dllToLoad);
82  
83          [DllImport("kernel32.dll", CharSet = CharSet.Unicode)]
84          public static extern bool FreeLibrary(IntPtr hModule);
85  
86  #pragma warning restore CA1401 // P/Invokes should not be visible
87  
88          [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
89          [return: MarshalAs(UnmanagedType.Bool)]
90  
91          internal static extern bool SystemParametersInfo(int uiAction, int uiParam, StringBuilder pvParam, int fWinIni);
92  
93          public static void SetPopupStyle(IntPtr hwnd)
94          {
95              _ = SetWindowLong(hwnd, GWL_STYLE, GetWindowLong(hwnd, GWL_STYLE) | WS_POPUP);
96          }
97      }
98  }