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 using System;
  29 using System.ComponentModel;
  30 using System.Diagnostics;
  31 using System.Linq;
  32 using System.Net;
  33 using System.Runtime.InteropServices;
  34 using System.Threading;
  35 using System.Windows.Forms;
  36 using System.Text;
  37 using OpenTween.Connection;
  38
  39 namespace OpenTween
  40 {
  41     internal static class NativeMethods
  42     {
  43         // 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
  44         [DllImport("user32.dll")]
  45         private extern static IntPtr SendMessage(
  46             IntPtr hwnd,
  47             SendMessageType wMsg,
  48             IntPtr wParam,
  49             IntPtr lParam);
  50
  51         [DllImport("user32.dll")]
  52         private extern static IntPtr SendMessage(
  53             IntPtr hwnd,
  54             SendMessageType wMsg,
  55             IntPtr wParam,
  56             ref LVITEM lParam);
  57
  58         // SendMessageで送信するメッセージ
  59         private enum SendMessageType : uint
  60         {
  61             WM_SETREDRAW = 0x000B,               //再描画を許可するかを設定
  62             WM_USER = 0x400,                     //ユーザー定義メッセージ
  63
  64             TCM_FIRST = 0x1300,                  //タブコントロールメッセージ
  65             TCM_SETMINTABWIDTH = TCM_FIRST + 49, //タブアイテムの最小幅を設定
  66
  67             LVM_FIRST = 0x1000,                    //リストビューメッセージ
  68             LVM_SETITEMSTATE = LVM_FIRST + 43,     //アイテムの状態を設定
  69             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
  70             LVM_SETSELECTIONMARK = LVM_FIRST + 67, //複数選択時の起点になるアイテムを設定
  71         }
  72
  73         /// <summary>
  74         /// コントロールの再描画を許可するかを設定します
  75         /// </summary>
  76         /// <param name="control">対象となるコントロール</param>
  77         /// <param name="redraw">再描画を許可する場合は true、抑制する場合は false</param>
  78         /// <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>
  79         public static int SetRedrawState(Control control, bool redraw)
  80         {
  81             var state = redraw ? new IntPtr(1) : IntPtr.Zero;
  82             return (int)SendMessage(control.Handle, SendMessageType.WM_SETREDRAW, state, IntPtr.Zero);
  83         }
  84
  85         /// <summary>
  86         /// タブコントロールのアイテムの最小幅を設定します
  87         /// </summary>
  88         /// <param name="tabControl">対象となるタブコントロール</param>
  89         /// <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>
  90         /// <returns>設定前の最小幅</returns>
  91         public static int SetMinTabWidth(TabControl tabControl, int width)
  92         {
  93             return (int)SendMessage(tabControl.Handle, SendMessageType.TCM_SETMINTABWIDTH, IntPtr.Zero, (IntPtr)width);
  94         }
  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         {
 153             return SelectItem(listView, -1 /* all items */);
 154         }
 155
 156         #region "画面ブリンク用"
 157         public static bool FlashMyWindow(IntPtr hwnd,
 158             FlashSpecification flashType,
 159             int flashCount)
 160         {
 161             var fInfo = new FLASHWINFO();
 162             fInfo.cbSize = Convert.ToInt32(Marshal.SizeOf(fInfo));
 163             fInfo.hwnd = hwnd;
 164             fInfo.dwFlags = (int)FlashSpecification.FlashAll;
 165             fInfo.uCount = flashCount;
 166             fInfo.dwTimeout = 0;
 167
 168             return FlashWindowEx(ref fInfo);
 169         }
 170
 171         public enum FlashSpecification : uint
 172         {
 173             FlashStop = FLASHW_STOP,
 174             FlashCaption = FLASHW_CAPTION,
 175             FlashTray = FLASHW_TRAY,
 176             FlashAll = FLASHW_ALL,
 177             FlashTimer = FLASHW_TIMER,
 178             FlashTimerNoForeground = FLASHW_TIMERNOFG,
 179         }
 180         /// http://www.atmarkit.co.jp/fdotnet/dotnettips/723flashwindow/flashwindow.html
 181         [DllImport("user32.dll")]
 182         [return: MarshalAs(UnmanagedType.Bool)]
 183         private static extern bool FlashWindowEx(
 184             ref FLASHWINFO FWInfo);
 185
 186
 187         private struct FLASHWINFO
 188         {
 189             public Int32 cbSize;    // FLASHWINFO構造体のサイズ
 190             public IntPtr hwnd;     // 点滅対象のウィンドウ・ハンドル
 191             public Int32 dwFlags;   // 以下の「FLASHW_XXX」のいずれか
 192             public Int32 uCount;    // 点滅する回数
 193             public Int32 dwTimeout; // 点滅する間隔（ミリ秒単位）
 194         }
 195
 196         // 点滅を止める
 197         private const Int32 FLASHW_STOP = 0;
 198         // タイトルバーを点滅させる
 199         private const Int32 FLASHW_CAPTION = 0x1;
 200         // タスクバー・ボタンを点滅させる
 201         private const Int32 FLASHW_TRAY = 0x2;
 202         // タスクバー・ボタンとタイトルバーを点滅させる
 203         private const Int32 FLASHW_ALL = 0x3;
 204         // FLASHW_STOPが指定されるまでずっと点滅させる
 205         private const Int32 FLASHW_TIMER = 0x4;
 206         // ウィンドウが最前面に来るまでずっと点滅させる
 207         private const Int32 FLASHW_TIMERNOFG = 0xC;
 208         #endregion
 209
 210         [DllImport("user32.dll")]
 211         [return: MarshalAs(UnmanagedType.Bool)]
 212         public static extern bool ValidateRect(
 213             IntPtr hwnd,
 214             IntPtr rect);
 215
 216         #region "selection mark"
 217         // 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
 218         public static int ListView_GetSelectionMark(IntPtr hwndLV)
 219         {
 220             return SendMessage(hwndLV, SendMessageType.LVM_GETSELECTIONMARK, IntPtr.Zero, IntPtr.Zero).ToInt32();
 221         }
 222
 223         // 複数選択時の起点になるアイテム (selection mark) を設定する
 224         public static void ListView_SetSelectionMark(IntPtr hwndLV, int itemIndex)
 225         {
 226             SendMessage(hwndLV, SendMessageType.LVM_SETSELECTIONMARK, IntPtr.Zero, (IntPtr)itemIndex);
 227         }
 228         #endregion
 229
 230         #region "スクリーンセーバー起動中か判定"
 231         [DllImport("user32", CharSet = CharSet.Auto)]
 232         [return: MarshalAs(UnmanagedType.Bool)]
 233         private static extern bool SystemParametersInfo(
 234                     int intAction,
 235                     int intParam,
 236                     [MarshalAs(UnmanagedType.Bool)] ref bool bParam,
 237                     int intWinIniFlag);
 238         // returns non-zero value if function succeeds
 239
 240         //スクリーンセーバーが起動中かを取得する定数
 241         private const int SPI_GETSCREENSAVERRUNNING = 0x0072;
 242
 243         public static bool IsScreenSaverRunning()
 244         {
 245             var isRunning = false;
 246             SystemParametersInfo(SPI_GETSCREENSAVERRUNNING, 0, ref isRunning, 0);
 247             return isRunning;
 248         }
 249         #endregion
 250
 251         #region "グローバルフック"
 252         [DllImport("user32")]
 253         private static extern int RegisterHotKey(IntPtr hwnd, int id,
 254             int fsModifiers, int vk);
 255         [DllImport("user32")]
 256         private static extern int UnregisterHotKey(IntPtr hwnd, int id);
 257         [DllImport("kernel32", CharSet = CharSet.Auto, BestFitMapping = false, ThrowOnUnmappableChar = true)]
 258         private static extern ushort GlobalAddAtom([MarshalAs(UnmanagedType.LPTStr)] string lpString);
 259         [DllImport("kernel32")]
 260         private static extern ushort GlobalDeleteAtom(ushort nAtom);
 261
 262         private static int registerCount = 0;
 263         // register a global hot key
 264         public static int RegisterGlobalHotKey(int hotkeyValue, int modifiers, Form targetForm)
 265         {
 266             ushort hotkeyID = 0;
 267             try
 268             {
 269                 // use the GlobalAddAtom API to get a unique ID (as suggested by MSDN docs)
 270                 registerCount++;
 271                 var atomName = Thread.CurrentThread.ManagedThreadId.ToString("X8") + targetForm.Name + registerCount;
 272                 hotkeyID = GlobalAddAtom(atomName);
 273                 if (hotkeyID == 0)
 274                 {
 275                     throw new Win32Exception();
 276                 }
 277
 278                 // register the hotkey, throw if any error
 279                 if (RegisterHotKey(targetForm.Handle, hotkeyID, modifiers, hotkeyValue) == 0)
 280                 {
 281                     throw new Win32Exception();
 282                 }
 283                 return hotkeyID;
 284             }
 285             catch (Exception)
 286             {
 287                 // clean up if hotkey registration failed
 288                 UnregisterGlobalHotKey(hotkeyID, targetForm);
 289                 return 0;
 290             }
 291         }
 292
 293         // unregister a global hotkey
 294         public static void UnregisterGlobalHotKey(ushort hotkeyID, Form targetForm)
 295         {
 296             if (hotkeyID != 0)
 297             {
 298                 UnregisterHotKey(targetForm.Handle, hotkeyID);
 299                 // clean up the atom list
 300                 GlobalDeleteAtom(hotkeyID);
 301                 hotkeyID = 0;
 302             }
 303         }
 304         #endregion
 305
 306         #region "プロセスのProxy設定"
 307
 308         [DllImport("wininet.dll", SetLastError = true)]
 309         [return: MarshalAs(UnmanagedType.Bool)]
 310         private static extern bool InternetSetOption(IntPtr hInternet,
 311             InternetOption dwOption,
 312             [In] ref InternetProxyInfo lpBuffer,
 313             int lpdwBufferLength);
 314
 315         private enum InternetOption
 316         {
 317             PROXY = 38,
 318             PROXY_USERNAME = 43,
 319             PROXY_PASSWORD = 44,
 320         }
 321
 322         [StructLayout(LayoutKind.Sequential)]
 323         [BestFitMapping(false, ThrowOnUnmappableChar = true)]
 324         private struct InternetProxyInfo
 325         {
 326             public InternetOpenType dwAccessType;
 327             public string proxy;
 328             public string proxyBypass;
 329         }
 330
 331         private enum InternetOpenType
 332         {
 333             //PRECONFIG = 0, // IE setting
 334             DIRECT = 1, // Direct
 335             PROXY = 3, // Custom
 336         }
 337
 338         private static void RefreshProxySettings(string strProxy)
 339         {
 340             InternetProxyInfo ipi;
 341
 342             // Filling in structure
 343             if (!string.IsNullOrEmpty(strProxy))
 344             {
 345                 ipi = new InternetProxyInfo
 346                 {
 347                     dwAccessType = InternetOpenType.PROXY,
 348                     proxy = strProxy,
 349                     proxyBypass = "local",
 350                 };
 351             }
 352             else if (strProxy == null)
 353             {
 354                 //IE Default
 355                 var p = WebRequest.GetSystemWebProxy();
 356                 if (p.IsBypassed(new Uri("http://www.google.com/")))
 357                 {
 358                     ipi = new InternetProxyInfo
 359                     {
 360                         dwAccessType = InternetOpenType.DIRECT,
 361                         proxy = null,
 362                         proxyBypass = null,
 363                     };
 364                 }
 365                 else
 366                 {
 367                     ipi = new InternetProxyInfo
 368                     {
 369                         dwAccessType = InternetOpenType.PROXY,
 370                         proxy = p.GetProxy(new Uri("http://www.google.com/")).Authority,
 371                         proxyBypass = "local",
 372                     };
 373                 }
 374             }
 375             else
 376             {
 377                 ipi = new InternetProxyInfo
 378                 {
 379                     dwAccessType = InternetOpenType.DIRECT,
 380                     proxy = null,
 381                     proxyBypass = null,
 382                 };
 383             }
 384
 385             if (!InternetSetOption(IntPtr.Zero, InternetOption.PROXY, ref ipi, Marshal.SizeOf(ipi)))
 386                 throw new Win32Exception();
 387         }
 388
 389         public static void SetProxy(ProxyType pType, string host, int port, string username, string password)
 390         {
 391             string proxy = null;
 392             switch (pType)
 393             {
 394             case ProxyType.IE:
 395                 proxy = null;
 396                 break;
 397             case ProxyType.None:
 398                 proxy = "";
 399                 break;
 400             case ProxyType.Specified:
 401                 proxy = host + (port > 0 ? ":" + port : "");
 402                 break;
 403             }
 404             RefreshProxySettings(proxy);
 405         }
 406 #endregion
 407
 408         [StructLayout(LayoutKind.Sequential)]
 409         private struct SCROLLINFO
 410         {
 411             public int cbSize;
 412             public ScrollInfoMask fMask;
 413             public int nMin;
 414             public int nMax;
 415             public int nPage;
 416             public int nPos;
 417             public int nTrackPos;
 418         }
 419
 420         public enum ScrollBarDirection
 421         {
 422             SB_HORZ = 0,
 423             SB_VERT = 1,
 424             SB_CTL = 2,
 425             SB_BOTH = 3,
 426         }
 427
 428         private enum ScrollInfoMask
 429         {
 430             SIF_RANGE = 0x1,
 431             SIF_PAGE = 0x2,
 432             SIF_POS = 0x4,
 433             SIF_DISABLENOSCROLL = 0x8,
 434             SIF_TRACKPOS = 0x10,
 435             SIF_ALL = (SIF_RANGE | SIF_PAGE | SIF_POS | SIF_TRACKPOS),
 436         }
 437
 438         [DllImport("user32.dll")]
 439         private static extern int GetScrollInfo(IntPtr hWnd, ScrollBarDirection fnBar, ref SCROLLINFO lpsi);
 440
 441         public static int GetScrollPosition(Control control, ScrollBarDirection direction)
 442         {
 443             var si = new SCROLLINFO
 444             {
 445                 cbSize = Marshal.SizeOf<SCROLLINFO>(),
 446                 fMask = ScrollInfoMask.SIF_POS,
 447             };
 448
 449             if (NativeMethods.GetScrollInfo(control.Handle, direction, ref si) == 0)
 450                 throw new Win32Exception();
 451
 452             return si.nPos;
 453         }
 454
 455         #region "ウィンドウの検索"
 456
 457         [DllImport("user32.dll")]
 458         private static extern uint GetWindowThreadProcessId(IntPtr hWnd, out uint procId);
 459
 460         [return: MarshalAs(UnmanagedType.Bool)]
 461         private delegate bool EnumWindowCallback(IntPtr hWnd, int lParam);
 462
 463         [DllImport("user32")]
 464         [return: MarshalAs(UnmanagedType.Bool)]
 465         private static extern bool EnumWindows(EnumWindowCallback lpEnumFunc, IntPtr lParam);
 466
 467         [DllImport("user32.dll", CharSet = CharSet.Unicode)]
 468         private static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);
 469
 470         [DllImport("user32.dll", CharSet = CharSet.Unicode)]
 471         private static extern int GetWindowTextLength(IntPtr hWnd);
 472
 473         /// <summary>
 474         /// 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
 475         /// </summary>
 476         /// <param name="pid">対象ウィンドウのPID</param>
 477         /// <param name="searchWindowTitle">対象ウィンドウのタイトル</param>
 478         /// <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>
 479         public static IntPtr GetWindowHandle(uint pid, string searchWindowTitle)
 480         {
 481             var foundHwnd = IntPtr.Zero;
 482
 483             EnumWindows((hWnd, lParam) =>
 484             {
 485                 GetWindowThreadProcessId(hWnd, out var procId);
 486
 487                 if (procId == pid)
 488                 {
 489                     int windowTitleLen = GetWindowTextLength(hWnd);
 490
 491                     if (windowTitleLen > 0)
 492                     {
 493                         StringBuilder windowTitle = new StringBuilder(windowTitleLen + 1);
 494                         GetWindowText(hWnd, windowTitle, windowTitle.Capacity);
 495
 496                         if (windowTitle.ToString().Contains(searchWindowTitle))
 497                         {
 498                             foundHwnd = hWnd;
 499                             return false;
 500                         }
 501                     }
 502                 }
 503
 504                 return true;
 505             }, IntPtr.Zero);
 506
 507             return foundHwnd;
 508         }
 509
 510         #endregion
 511
 512         #region "ウィンドウのアクティブ化"
 513
 514         private enum ShowWindowCommands : int
 515         {
 516             /// <summary>最小化・最大化されたウィンドウを元に戻して表示</summary>
 517             SW_RESTORE = 9,
 518         }
 519
 520         [DllImport("user32.dll")]
 521         [return: MarshalAs(UnmanagedType.Bool)]
 522         private static extern bool ShowWindow(IntPtr hWnd, ShowWindowCommands nCmdShow);
 523
 524         [DllImport("user32.dll")]
 525         [return: MarshalAs(UnmanagedType.Bool)]
 526         private static extern bool SetForegroundWindow(IntPtr hWnd);
 527
 528         /// <summary>
 529         /// 指定したウィンドウをアクティブにします
 530         /// </summary>
 531         /// <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>
 532         public static void SetActiveWindow(IntPtr hWnd)
 533         {
 534             ShowWindow(hWnd, ShowWindowCommands.SW_RESTORE);
 535             SetForegroundWindow(hWnd);
 536         }
 537
 538         #endregion
 539     }
 540 }