OpenTween/NativeMethods.cs

   1 // OpenTween - Client of Twitter
   2 // Copyright (c) 2007-2011 kiri_feather (@kiri_feather) <kiri.feather@gmail.com>
   3 //           (c) 2008-2011 Moz (@syo68k)
   4 //           (c) 2008-2011 takeshik (@takeshik) <http://www.takeshik.org/>
   5 //           (c) 2010-2011 anis774 (@anis774) <http://d.hatena.ne.jp/anis774/>
   6 //           (c) 2010-2011 fantasticswallow (@f_swallow) <http://twitter.com/f_swallow>
   7 //           (c) 2011      Egtra (@egtra) <http://dev.activebasic.com/egtra/>
   8 //           (c) 2014      kim_upsilon (@kim_upsilon) <https://upsilo.net/~upsilon/>
   9 // All rights reserved.
  10 //
  11 // This file is part of OpenTween.
  12 //
  13 // This program is free software; you can redistribute it and/or modify it
  14 // under the terms of the GNU General public License as published by the Free
  15 // Software Foundation; either version 3 of the License, or (at your option)
  16 // any later version.
  17 //
  18 // This program is distributed in the hope that it will be useful, but
  19 // WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  20 // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General public License
  21 // for more details.
  22 //
  23 // You should have received a copy of the GNU General public License along
  24 // with this program. if not, see <http://www.gnu.org/licenses/>, or write to
  25 // the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
  26 // Boston, MA 02110-1301, USA.
  27
  28 #nullable enable
  29
  30 using System;
  31 using System.ComponentModel;
  32 using System.Diagnostics;
  33 using System.Linq;
  34 using System.Net;
  35 using System.Runtime.InteropServices;
  36 using System.Threading;
  37 using System.Windows.Forms;
  38 using System.Text;
  39 using OpenTween.Connection;
  40
  41 namespace OpenTween
  42 {
  43     internal static class NativeMethods
  44     {
  45         // 指定されたウィンドウへ、指定されたメッセージを送信します
  46         [DllImport("user32.dll")]
  47         private extern static IntPtr SendMessage(
  48             IntPtr hwnd,
  49             SendMessageType wMsg,
  50             IntPtr wParam,
  51             IntPtr lParam);
  52
  53         [DllImport("user32.dll")]
  54         private extern static IntPtr SendMessage(
  55             IntPtr hwnd,
  56             SendMessageType wMsg,
  57             IntPtr wParam,
  58             ref LVITEM lParam);
  59
  60         // SendMessageで送信するメッセージ
  61         private enum SendMessageType : uint
  62         {
  63             WM_SETREDRAW = 0x000B,               //再描画を許可するかを設定
  64             WM_USER = 0x400,                     //ユーザー定義メッセージ
  65
  66             TCM_FIRST = 0x1300,                  //タブコントロールメッセージ
  67             TCM_SETMINTABWIDTH = TCM_FIRST + 49, //タブアイテムの最小幅を設定
  68
  69             LVM_FIRST = 0x1000,                    //リストビューメッセージ
  70             LVM_SETITEMSTATE = LVM_FIRST + 43,     //アイテムの状態を設定
  71             LVM_GETSELECTIONMARK = LVM_FIRST + 66, //複数選択時の起点になるアイテムの位置を取得
  72             LVM_SETSELECTIONMARK = LVM_FIRST + 67, //複数選択時の起点になるアイテムを設定
  73         }
  74
  75         /// <summary>
  76         /// コントロールの再描画を許可するかを設定します
  77         /// </summary>
  78         /// <param name="control">対象となるコントロール</param>
  79         /// <param name="redraw">再描画を許可する場合は true、抑制する場合は false</param>
  80         /// <returns>このメッセージを処理する場合、アプリケーションは 0 を返します</returns>
  81         public static int SetRedrawState(Control control, bool redraw)
  82         {
  83             var state = redraw ? new IntPtr(1) : IntPtr.Zero;
  84             return (int)SendMessage(control.Handle, SendMessageType.WM_SETREDRAW, state, IntPtr.Zero);
  85         }
  86
  87         /// <summary>
  88         /// タブコントロールのアイテムの最小幅を設定します
  89         /// </summary>
  90         /// <param name="tabControl">対象となるタブコントロール</param>
  91         /// <param name="width">アイテムの最小幅。-1 を指定するとデフォルトの幅が使用されます</param>
  92         /// <returns>設定前の最小幅</returns>
  93         public static int SetMinTabWidth(TabControl tabControl, int width)
  94             => (int)SendMessage(tabControl.Handle, SendMessageType.TCM_SETMINTABWIDTH, IntPtr.Zero, (IntPtr)width);
  95
  96         // 参照: LVITEM structure (Windows)
  97         // http://msdn.microsoft.com/en-us/library/windows/desktop/bb774760%28v=vs.85%29.aspx
  98         [StructLayout(LayoutKind.Sequential)]
  99         [BestFitMapping(false, ThrowOnUnmappableChar = true)]
 100         private struct LVITEM
 101         {
 102             public uint mask;
 103             public int iItem;
 104             public int iSubItem;
 105             public LVIS state;
 106             public LVIS stateMask;
 107             public string pszText;
 108             public int cchTextMax;
 109             public int iImage;
 110             public IntPtr lParam;
 111             public int iIndent;
 112             public int iGroupId;
 113             public uint cColumns;
 114             public uint puColumns;
 115             public int piColFmt;
 116             public int iGroup;
 117         }
 118
 119         // 参照: List-View Item States (Windows)
 120         // http://msdn.microsoft.com/en-us/library/windows/desktop/bb774733%28v=vs.85%29.aspx
 121         [Flags]
 122         private enum LVIS : uint
 123         {
 124             SELECTED = 0x02,
 125         }
 126
 127         /// <summary>
 128         /// ListView のアイテムを選択された状態にします
 129         /// </summary>
 130         /// <param name="listView">対象となる ListView</param>
 131         /// <param name="index">選択するアイテムのインデックス</param>
 132         /// <returns>成功した場合は true、それ以外の場合は false</returns>
 133         public static bool SelectItem(ListView listView, int index)
 134         {
 135             // LVM_SETITEMSTATE では stateMask, state 以外のメンバーは無視される
 136             var lvitem = new LVITEM
 137             {
 138                 stateMask = LVIS.SELECTED,
 139                 state = LVIS.SELECTED,
 140             };
 141
 142             var ret = (int)SendMessage(listView.Handle, SendMessageType.LVM_SETITEMSTATE, (IntPtr)index, ref lvitem);
 143             return ret != 0;
 144         }
 145
 146         /// <summary>
 147         /// ListView の全アイテムを選択された状態にします
 148         /// </summary>
 149         /// <param name="listView">対象となる ListView</param>
 150         /// <returns>成功した場合は true、それ以外の場合は false</returns>
 151         public static bool SelectAllItems(ListView listView)
 152             => SelectItem(listView, -1 /* all items */);
 153
 154         #region "画面ブリンク用"
 155         public static bool FlashMyWindow(IntPtr hwnd, int flashCount)
 156         {
 157             var fInfo = new FLASHWINFO();
 158             fInfo.cbSize = Convert.ToInt32(Marshal.SizeOf(fInfo));
 159             fInfo.hwnd = hwnd;
 160             fInfo.dwFlags = (int)FlashSpecification.FlashAll;
 161             fInfo.uCount = flashCount;
 162             fInfo.dwTimeout = 0;
 163
 164             return FlashWindowEx(ref fInfo);
 165         }
 166
 167         public enum FlashSpecification : uint
 168         {
 169             FlashStop = FLASHW_STOP,
 170             FlashCaption = FLASHW_CAPTION,
 171             FlashTray = FLASHW_TRAY,
 172             FlashAll = FLASHW_ALL,
 173             FlashTimer = FLASHW_TIMER,
 174             FlashTimerNoForeground = FLASHW_TIMERNOFG,
 175         }
 176         /// http://www.atmarkit.co.jp/fdotnet/dotnettips/723flashwindow/flashwindow.html
 177         [DllImport("user32.dll")]
 178         [return: MarshalAs(UnmanagedType.Bool)]
 179         private static extern bool FlashWindowEx(
 180             ref FLASHWINFO FWInfo);
 181
 182
 183         private struct FLASHWINFO
 184         {
 185             public int cbSize;    // FLASHWINFO構造体のサイズ
 186             public IntPtr hwnd;     // 点滅対象のウィンドウ・ハンドル
 187             public int dwFlags;   // 以下の「FLASHW_XXX」のいずれか
 188             public int uCount;    // 点滅する回数
 189             public int dwTimeout; // 点滅する間隔（ミリ秒単位）
 190         }
 191
 192         // 点滅を止める
 193         private const int FLASHW_STOP = 0;
 194         // タイトルバーを点滅させる
 195         private const int FLASHW_CAPTION = 0x1;
 196         // タスクバー・ボタンを点滅させる
 197         private const int FLASHW_TRAY = 0x2;
 198         // タスクバー・ボタンとタイトルバーを点滅させる
 199         private const int FLASHW_ALL = 0x3;
 200         // FLASHW_STOPが指定されるまでずっと点滅させる
 201         private const int FLASHW_TIMER = 0x4;
 202         // ウィンドウが最前面に来るまでずっと点滅させる
 203         private const int FLASHW_TIMERNOFG = 0xC;
 204         #endregion
 205
 206         [DllImport("user32.dll")]
 207         [return: MarshalAs(UnmanagedType.Bool)]
 208         public static extern bool ValidateRect(
 209             IntPtr hwnd,
 210             IntPtr rect);
 211
 212         #region "selection mark"
 213         // 複数選択時の起点になるアイテム (selection mark) の位置を取得する
 214         public static int ListView_GetSelectionMark(IntPtr hwndLV)
 215             => SendMessage(hwndLV, SendMessageType.LVM_GETSELECTIONMARK, IntPtr.Zero, IntPtr.Zero).ToInt32();
 216
 217         // 複数選択時の起点になるアイテム (selection mark) を設定する
 218         public static void ListView_SetSelectionMark(IntPtr hwndLV, int itemIndex)
 219             => SendMessage(hwndLV, SendMessageType.LVM_SETSELECTIONMARK, IntPtr.Zero, (IntPtr)itemIndex);
 220         #endregion
 221
 222         #region "スクリーンセーバー起動中か判定"
 223         [DllImport("user32", CharSet = CharSet.Auto)]
 224         [return: MarshalAs(UnmanagedType.Bool)]
 225         private static extern bool SystemParametersInfo(
 226                     int intAction,
 227                     int intParam,
 228                     [MarshalAs(UnmanagedType.Bool)] ref bool bParam,
 229                     int intWinIniFlag);
 230         // returns non-zero value if function succeeds
 231
 232         //スクリーンセーバーが起動中かを取得する定数
 233         private const int SPI_GETSCREENSAVERRUNNING = 0x0072;
 234
 235         public static bool IsScreenSaverRunning()
 236         {
 237             var isRunning = false;
 238             SystemParametersInfo(SPI_GETSCREENSAVERRUNNING, 0, ref isRunning, 0);
 239             return isRunning;
 240         }
 241         #endregion
 242
 243         #region "グローバルフック"
 244         [DllImport("user32")]
 245         private static extern int RegisterHotKey(IntPtr hwnd, int id,
 246             int fsModifiers, int vk);
 247         [DllImport("user32")]
 248         private static extern int UnregisterHotKey(IntPtr hwnd, int id);
 249         [DllImport("kernel32", CharSet = CharSet.Auto, BestFitMapping = false, ThrowOnUnmappableChar = true)]
 250         private static extern ushort GlobalAddAtom([MarshalAs(UnmanagedType.LPTStr)] string lpString);
 251         [DllImport("kernel32")]
 252         private static extern ushort GlobalDeleteAtom(ushort nAtom);
 253
 254         private static int registerCount = 0;
 255         // register a global hot key
 256         public static int RegisterGlobalHotKey(int hotkeyValue, int modifiers, Form targetForm)
 257         {
 258             ushort hotkeyID = 0;
 259             try
 260             {
 261                 // use the GlobalAddAtom API to get a unique ID (as suggested by MSDN docs)
 262                 registerCount++;
 263                 var atomName = Thread.CurrentThread.ManagedThreadId.ToString("X8") + targetForm.Name + registerCount;
 264                 hotkeyID = GlobalAddAtom(atomName);
 265                 if (hotkeyID == 0)
 266                 {
 267                     throw new Win32Exception();
 268                 }
 269
 270                 // register the hotkey, throw if any error
 271                 if (RegisterHotKey(targetForm.Handle, hotkeyID, modifiers, hotkeyValue) == 0)
 272                 {
 273                     throw new Win32Exception();
 274                 }
 275                 return hotkeyID;
 276             }
 277             catch (Exception)
 278             {
 279                 // clean up if hotkey registration failed
 280                 UnregisterGlobalHotKey(hotkeyID, targetForm);
 281                 return 0;
 282             }
 283         }
 284
 285         // unregister a global hotkey
 286         public static void UnregisterGlobalHotKey(ushort hotkeyID, Form targetForm)
 287         {
 288             if (hotkeyID != 0)
 289             {
 290                 UnregisterHotKey(targetForm.Handle, hotkeyID);
 291                 // clean up the atom list
 292                 GlobalDeleteAtom(hotkeyID);
 293             }
 294         }
 295         #endregion
 296
 297         #region "プロセスのProxy設定"
 298
 299         [DllImport("wininet.dll", SetLastError = true)]
 300         [return: MarshalAs(UnmanagedType.Bool)]
 301         private static extern bool InternetSetOption(IntPtr hInternet,
 302             InternetOption dwOption,
 303             [In] ref InternetProxyInfo lpBuffer,
 304             int lpdwBufferLength);
 305
 306         private enum InternetOption
 307         {
 308             PROXY = 38,
 309             PROXY_USERNAME = 43,
 310             PROXY_PASSWORD = 44,
 311         }
 312
 313         [StructLayout(LayoutKind.Sequential)]
 314         [BestFitMapping(false, ThrowOnUnmappableChar = true)]
 315         private struct InternetProxyInfo
 316         {
 317             public InternetOpenType dwAccessType;
 318             public string? proxy;
 319             public string? proxyBypass;
 320         }
 321
 322         private enum InternetOpenType
 323         {
 324             DIRECT = 1, // Direct
 325             PROXY = 3, // Custom
 326         }
 327
 328         private static void RefreshProxySettings(string? strProxy)
 329         {
 330             InternetProxyInfo ipi;
 331
 332             // Filling in structure
 333             if (!string.IsNullOrEmpty(strProxy))
 334             {
 335                 ipi = new InternetProxyInfo
 336                 {
 337                     dwAccessType = InternetOpenType.PROXY,
 338                     proxy = strProxy,
 339                     proxyBypass = "local",
 340                 };
 341             }
 342             else if (strProxy == null)
 343             {
 344                 //IE Default
 345                 var p = WebRequest.GetSystemWebProxy();
 346                 if (p.IsBypassed(new Uri("http://www.google.com/")))
 347                 {
 348                     ipi = new InternetProxyInfo
 349                     {
 350                         dwAccessType = InternetOpenType.DIRECT,
 351                         proxy = null,
 352                         proxyBypass = null,
 353                     };
 354                 }
 355                 else
 356                 {
 357                     ipi = new InternetProxyInfo
 358                     {
 359                         dwAccessType = InternetOpenType.PROXY,
 360                         proxy = p.GetProxy(new Uri("http://www.google.com/")).Authority,
 361                         proxyBypass = "local",
 362                     };
 363                 }
 364             }
 365             else
 366             {
 367                 ipi = new InternetProxyInfo
 368                 {
 369                     dwAccessType = InternetOpenType.DIRECT,
 370                     proxy = null,
 371                     proxyBypass = null,
 372                 };
 373             }
 374
 375             if (!InternetSetOption(IntPtr.Zero, InternetOption.PROXY, ref ipi, Marshal.SizeOf(ipi)))
 376                 throw new Win32Exception();
 377         }
 378
 379         public static void SetProxy(ProxyType pType, string host, int port)
 380         {
 381             var proxy = pType switch
 382             {
 383                 ProxyType.IE => null,
 384                 ProxyType.None => "",
 385                 ProxyType.Specified => host + (port > 0 ? ":" + port : ""),
 386                 _ => null,
 387             };
 388             RefreshProxySettings(proxy);
 389         }
 390 #endregion
 391
 392         [StructLayout(LayoutKind.Sequential)]
 393         private struct SCROLLINFO
 394         {
 395             public int cbSize;
 396             public ScrollInfoMask fMask;
 397             public int nMin;
 398             public int nMax;
 399             public int nPage;
 400             public int nPos;
 401             public int nTrackPos;
 402         }
 403
 404         public enum ScrollBarDirection
 405         {
 406             SB_HORZ = 0,
 407             SB_VERT = 1,
 408             SB_CTL = 2,
 409             SB_BOTH = 3,
 410         }
 411
 412         private enum ScrollInfoMask
 413         {
 414             SIF_RANGE = 0x1,
 415             SIF_PAGE = 0x2,
 416             SIF_POS = 0x4,
 417             SIF_DISABLENOSCROLL = 0x8,
 418             SIF_TRACKPOS = 0x10,
 419             SIF_ALL = (SIF_RANGE | SIF_PAGE | SIF_POS | SIF_TRACKPOS),
 420         }
 421
 422         [DllImport("user32.dll")]
 423         private static extern int GetScrollInfo(IntPtr hWnd, ScrollBarDirection fnBar, ref SCROLLINFO lpsi);
 424
 425         public static int GetScrollPosition(Control control, ScrollBarDirection direction)
 426         {
 427             var si = new SCROLLINFO
 428             {
 429                 cbSize = Marshal.SizeOf<SCROLLINFO>(),
 430                 fMask = ScrollInfoMask.SIF_POS,
 431             };
 432
 433             if (NativeMethods.GetScrollInfo(control.Handle, direction, ref si) == 0)
 434                 throw new Win32Exception();
 435
 436             return si.nPos;
 437         }
 438
 439         #region "ウィンドウの検索"
 440
 441         [DllImport("user32.dll")]
 442         private static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint procId);
 443
 444         [return: MarshalAs(UnmanagedType.Bool)]
 445         private delegate bool EnumWindowCallback(IntPtr hWnd, int lParam);
 446
 447         [DllImport("user32")]
 448         [return: MarshalAs(UnmanagedType.Bool)]
 449         private static extern bool EnumWindows(EnumWindowCallback lpEnumFunc, IntPtr lParam);
 450
 451         [DllImport("user32.dll", CharSet = CharSet.Unicode)]
 452         private static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);
 453
 454         [DllImport("user32.dll", CharSet = CharSet.Unicode)]
 455         private static extern int GetWindowTextLength(IntPtr hWnd);
 456
 457         /// <summary>
 458         /// 指定したPIDとタイトルを持つウィンドウのウィンドウハンドルを取得します
 459         /// </summary>
 460         /// <param name="pid">対象ウィンドウのPID</param>
 461         /// <param name="searchWindowTitle">対象ウィンドウのタイトル</param>
 462         /// <returns>ウィンドウハンドル。検索に失敗した場合は<see cref="IntPtr.Zero"/></returns>
 463         public static IntPtr GetWindowHandle(uint pid, string searchWindowTitle)
 464         {
 465             var foundHwnd = IntPtr.Zero;
 466
 467             EnumWindows((hWnd, lParam) =>
 468             {
 469                 GetWindowThreadProcessId(hWnd, out var procId);
 470
 471                 if (procId == pid)
 472                 {
 473                     var windowTitleLen = GetWindowTextLength(hWnd);
 474
 475                     if (windowTitleLen > 0)
 476                     {
 477                         var windowTitle = new StringBuilder(windowTitleLen + 1);
 478                         GetWindowText(hWnd, windowTitle, windowTitle.Capacity);
 479
 480                         if (windowTitle.ToString().Contains(searchWindowTitle))
 481                         {
 482                             foundHwnd = hWnd;
 483                             return false;
 484                         }
 485                     }
 486                 }
 487
 488                 return true;
 489             }, IntPtr.Zero);
 490
 491             return foundHwnd;
 492         }
 493
 494         #endregion
 495
 496         #region "ウィンドウのアクティブ化"
 497
 498         private enum ShowWindowCommands : int
 499         {
 500             /// <summary>最小化・最大化されたウィンドウを元に戻して表示</summary>
 501             SW_RESTORE = 9,
 502         }
 503
 504         [DllImport("user32.dll")]
 505         [return: MarshalAs(UnmanagedType.Bool)]
 506         private static extern bool ShowWindow(IntPtr hWnd, ShowWindowCommands nCmdShow);
 507
 508         [DllImport("user32.dll")]
 509         [return: MarshalAs(UnmanagedType.Bool)]
 510         private static extern bool SetForegroundWindow(IntPtr hWnd);
 511
 512         /// <summary>
 513         /// 指定したウィンドウをアクティブにします
 514         /// </summary>
 515         /// <param name="hWnd">アクティブにするウィンドウのウィンドウハンドル</param>
 516         public static void SetActiveWindow(IntPtr hWnd)
 517         {
 518             ShowWindow(hWnd, ShowWindowCommands.SW_RESTORE);
 519             SetForegroundWindow(hWnd);
 520         }
 521
 522         #endregion
 523     }
 524 }