dll/win32/comctl32/ipaddress.c

   1 /*
   2  * IP Address control
   3  *
   4  * Copyright 2002 Dimitrie O. Paun
   5  * Copyright 1999 Chris Morgan<cmorgan@wpi.edu>
   6  * Copyright 1999 James Abbatiello<abbeyj@wpi.edu>
   7  * Copyright 1998, 1999 Eric Kohl
   8  * Copyright 1998 Alex Priem <alexp@sci.kun.nl>
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  *
  24  * NOTE
  25  *
  26  * This code was audited for completeness against the documented features
  27  * of Comctl32.dll version 6.0 on Sep. 9, 2002, by Dimitrie O. Paun.
  28  *
  29  * Unless otherwise noted, we believe this code to be complete, as per
  30  * the specification mentioned above.
  31  * If you discover missing features, or bugs, please note them below.
  32  *
  33  */
  34
  35 #include "comctl32.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(ipaddress);
  38
  39 typedef struct
  40 {
  41     HWND     EditHwnd;
  42     INT      LowerLimit;
  43     INT      UpperLimit;
  44     WNDPROC  OrigProc;
  45 } IPPART_INFO;
  46
  47 typedef struct
  48 {
  49     HWND        Self;
  50     HWND        Notify;
  51     BOOL        Enabled;
  52     IPPART_INFO Part[4];
  53 } IPADDRESS_INFO;
  54
  55 static const WCHAR IP_SUBCLASS_PROP[] =
  56     { 'C', 'C', 'I', 'P', '3', '2', 'S', 'u', 'b', 'c', 'l', 'a', 's', 's', 'I', 'n', 'f', 'o', 0 };
  57
  58 #define POS_DEFAULT     0
  59 #define POS_LEFT        1
  60 #define POS_RIGHT       2
  61 #define POS_SELALL      3
  62
  63 static LRESULT CALLBACK
  64 IPADDRESS_SubclassProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
  65
  66 static void IPADDRESS_UpdateText (const IPADDRESS_INFO *infoPtr)
  67 {
  68     static const WCHAR zero[] = {'0', 0};
  69     static const WCHAR dot[]  = {'.', 0};
  70     WCHAR field[4];
  71     WCHAR ip[16];
  72     INT i;
  73
  74     ip[0] = 0;
  75
  76     for (i = 0; i < 4; i++) {
  77         if (GetWindowTextW (infoPtr->Part[i].EditHwnd, field, 4))
  78             strcatW(ip, field);
  79         else
  80             /* empty edit treated as zero */
  81             strcatW(ip, zero);
  82         if (i != 3)
  83             strcatW(ip, dot);
  84     }
  85
  86     SetWindowTextW(infoPtr->Self, ip);
  87 }
  88
  89 static LRESULT IPADDRESS_Notify (const IPADDRESS_INFO *infoPtr, UINT command)
  90 {
  91     HWND hwnd = infoPtr->Self;
  92
  93     TRACE("(command=%x)\n", command);
  94
  95     return SendMessageW (infoPtr->Notify, WM_COMMAND,
  96              MAKEWPARAM (GetWindowLongPtrW (hwnd, GWLP_ID), command), (LPARAM)hwnd);
  97 }
  98
  99 static INT IPADDRESS_IPNotify (const IPADDRESS_INFO *infoPtr, INT field, INT value)
 100 {
 101     NMIPADDRESS nmip;
 102
 103     TRACE("(field=%x, value=%d)\n", field, value);
 104
 105     nmip.hdr.hwndFrom = infoPtr->Self;
 106     nmip.hdr.idFrom   = GetWindowLongPtrW (infoPtr->Self, GWLP_ID);
 107     nmip.hdr.code     = IPN_FIELDCHANGED;
 108
 109     nmip.iField = field;
 110     nmip.iValue = value;
 111
 112     SendMessageW (infoPtr->Notify, WM_NOTIFY, nmip.hdr.idFrom, (LPARAM)&nmip);
 113
 114     TRACE("<-- %d\n", nmip.iValue);
 115
 116     return nmip.iValue;
 117 }
 118
 119
 120 static int IPADDRESS_GetPartIndex(const IPADDRESS_INFO *infoPtr, HWND hwnd)
 121 {
 122     int i;
 123
 124     TRACE("(hwnd=%p)\n", hwnd);
 125
 126     for (i = 0; i < 4; i++)
 127         if (infoPtr->Part[i].EditHwnd == hwnd) return i;
 128
 129     ERR("We subclassed the wrong window! (hwnd=%p)\n", hwnd);
 130     return -1;
 131 }
 132
 133
 134 static LRESULT IPADDRESS_Draw (const IPADDRESS_INFO *infoPtr, HDC hdc)
 135 {
 136     static const WCHAR dotW[] = { '.', 0 };
 137     RECT rect, rcPart;
 138     COLORREF bgCol, fgCol;
 139     int i;
 140
 141     TRACE("\n");
 142
 143     GetClientRect (infoPtr->Self, &rect);
 144
 145     if (infoPtr->Enabled) {
 146         bgCol = comctl32_color.clrWindow;
 147         fgCol = comctl32_color.clrWindowText;
 148     } else {
 149         bgCol = comctl32_color.clr3dFace;
 150         fgCol = comctl32_color.clrGrayText;
 151     }
 152
 153     FillRect (hdc, &rect, (HBRUSH)(DWORD_PTR)(bgCol+1));
 154     DrawEdge (hdc, &rect, EDGE_SUNKEN, BF_RECT | BF_ADJUST);
 155
 156     SetBkColor  (hdc, bgCol);
 157     SetTextColor(hdc, fgCol);
 158
 159     for (i = 0; i < 3; i++) {
 160         GetWindowRect (infoPtr->Part[i].EditHwnd, &rcPart);
 161         MapWindowPoints( 0, infoPtr->Self, (POINT *)&rcPart, 2 );
 162         rect.left = rcPart.right;
 163         GetWindowRect (infoPtr->Part[i+1].EditHwnd, &rcPart);
 164         MapWindowPoints( 0, infoPtr->Self, (POINT *)&rcPart, 2 );
 165         rect.right = rcPart.left;
 166         DrawTextW(hdc, dotW, 1, &rect, DT_SINGLELINE | DT_CENTER | DT_BOTTOM);
 167     }
 168
 169     return 0;
 170 }
 171
 172
 173 static LRESULT IPADDRESS_Create (HWND hwnd, const CREATESTRUCTA *lpCreate)
 174 {
 175     IPADDRESS_INFO *infoPtr;
 176     RECT rcClient, edit;
 177     int i, fieldsize;
 178     HFONT hFont, hSysFont;
 179     LOGFONTW logFont, logSysFont;
 180
 181     TRACE("\n");
 182
 183     SetWindowLongW (hwnd, GWL_STYLE,
 184                     GetWindowLongW(hwnd, GWL_STYLE) & ~WS_BORDER);
 185
 186     infoPtr = Alloc (sizeof(IPADDRESS_INFO));
 187     if (!infoPtr) return -1;
 188     SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);
 189
 190     GetClientRect (hwnd, &rcClient);
 191
 192     fieldsize = (rcClient.right - rcClient.left) / 4;
 193
 194     edit.top    = rcClient.top + 2;
 195     edit.bottom = rcClient.bottom - 2;
 196
 197     infoPtr->Self = hwnd;
 198     infoPtr->Enabled = TRUE;
 199     infoPtr->Notify = lpCreate->hwndParent;
 200
 201     hSysFont = GetStockObject(ANSI_VAR_FONT);
 202     GetObjectW(hSysFont, sizeof(LOGFONTW), &logSysFont);
 203     SystemParametersInfoW(SPI_GETICONTITLELOGFONT, 0, &logFont, 0);
 204     strcpyW(logFont.lfFaceName, logSysFont.lfFaceName);
 205     hFont = CreateFontIndirectW(&logFont);
 206
 207     for (i = 0; i < 4; i++) {
 208         IPPART_INFO* part = &infoPtr->Part[i];
 209
 210         part->LowerLimit = 0;
 211         part->UpperLimit = 255;
 212         edit.left = rcClient.left + i*fieldsize + 6;
 213         edit.right = rcClient.left + (i+1)*fieldsize - 2;
 214         part->EditHwnd =
 215                 CreateWindowW (WC_EDITW, NULL, WS_CHILD | WS_VISIBLE | ES_CENTER,
 216                                edit.left, edit.top, edit.right - edit.left,
 217                                edit.bottom - edit.top, hwnd, (HMENU) 1,
 218                                (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE), NULL);
 219         SendMessageW(part->EditHwnd, WM_SETFONT, (WPARAM) hFont, FALSE);
 220         SetPropW(part->EditHwnd, IP_SUBCLASS_PROP, hwnd);
 221         part->OrigProc = (WNDPROC)
 222                 SetWindowLongPtrW (part->EditHwnd, GWLP_WNDPROC,
 223                                 (DWORD_PTR)IPADDRESS_SubclassProc);
 224         EnableWindow(part->EditHwnd, infoPtr->Enabled);
 225     }
 226
 227     IPADDRESS_UpdateText (infoPtr);
 228
 229     return 0;
 230 }
 231
 232
 233 static LRESULT IPADDRESS_Destroy (IPADDRESS_INFO *infoPtr)
 234 {
 235     int i;
 236
 237     TRACE("\n");
 238
 239     for (i = 0; i < 4; i++) {
 240         IPPART_INFO* part = &infoPtr->Part[i];
 241         SetWindowLongPtrW (part->EditHwnd, GWLP_WNDPROC, (DWORD_PTR)part->OrigProc);
 242     }
 243
 244     SetWindowLongPtrW (infoPtr->Self, 0, 0);
 245     Free (infoPtr);
 246     return 0;
 247 }
 248
 249
 250 static LRESULT IPADDRESS_Enable (IPADDRESS_INFO *infoPtr, BOOL enabled)
 251 {
 252     int i;
 253
 254     infoPtr->Enabled = enabled;
 255
 256     for (i = 0; i < 4; i++)
 257         EnableWindow(infoPtr->Part[i].EditHwnd, enabled);
 258
 259     InvalidateRgn(infoPtr->Self, NULL, FALSE);
 260     return 0;
 261 }
 262
 263
 264 static LRESULT IPADDRESS_Paint (const IPADDRESS_INFO *infoPtr, HDC hdc)
 265 {
 266     PAINTSTRUCT ps;
 267
 268     TRACE("\n");
 269
 270     if (hdc) return IPADDRESS_Draw (infoPtr, hdc);
 271
 272     hdc = BeginPaint (infoPtr->Self, &ps);
 273     IPADDRESS_Draw (infoPtr, hdc);
 274     EndPaint (infoPtr->Self, &ps);
 275     return 0;
 276 }
 277
 278
 279 static BOOL IPADDRESS_IsBlank (const IPADDRESS_INFO *infoPtr)
 280 {
 281     int i;
 282
 283     TRACE("\n");
 284
 285     for (i = 0; i < 4; i++)
 286         if (GetWindowTextLengthW (infoPtr->Part[i].EditHwnd)) return FALSE;
 287
 288     return TRUE;
 289 }
 290
 291
 292 static int IPADDRESS_GetAddress (const IPADDRESS_INFO *infoPtr, LPDWORD ip_address)
 293 {
 294     WCHAR field[5];
 295     int i, invalid = 0;
 296     DWORD ip_addr = 0;
 297
 298     TRACE("\n");
 299
 300     for (i = 0; i < 4; i++) {
 301         ip_addr *= 256;
 302         if (GetWindowTextW (infoPtr->Part[i].EditHwnd, field, 4))
 303             ip_addr += atolW(field);
 304         else
 305             invalid++;
 306     }
 307     *ip_address = ip_addr;
 308
 309     return 4 - invalid;
 310 }
 311
 312
 313 static BOOL IPADDRESS_SetRange (IPADDRESS_INFO *infoPtr, int index, WORD range)
 314 {
 315     TRACE("\n");
 316
 317     if ( (index < 0) || (index > 3) ) return FALSE;
 318
 319     infoPtr->Part[index].LowerLimit = range & 0xFF;
 320     infoPtr->Part[index].UpperLimit = (range >> 8)  & 0xFF;
 321
 322     return TRUE;
 323 }
 324
 325
 326 static void IPADDRESS_ClearAddress (const IPADDRESS_INFO *infoPtr)
 327 {
 328     static const WCHAR nil[] = { 0 };
 329     int i;
 330
 331     TRACE("\n");
 332
 333     for (i = 0; i < 4; i++)
 334         SetWindowTextW (infoPtr->Part[i].EditHwnd, nil);
 335 }
 336
 337
 338 static LRESULT IPADDRESS_SetAddress (const IPADDRESS_INFO *infoPtr, DWORD ip_address)
 339 {
 340     WCHAR buf[20];
 341     static const WCHAR fmt[] = { '%', 'd', 0 };
 342     int i;
 343
 344     TRACE("\n");
 345
 346     for (i = 3; i >= 0; i--) {
 347         const IPPART_INFO* part = &infoPtr->Part[i];
 348         int value = ip_address & 0xff;
 349         if ( (value >= part->LowerLimit) && (value <= part->UpperLimit) ) {
 350             wsprintfW (buf, fmt, value);
 351             SetWindowTextW (part->EditHwnd, buf);
 352             IPADDRESS_Notify (infoPtr, EN_CHANGE);
 353         }
 354         ip_address >>= 8;
 355     }
 356
 357     return TRUE;
 358 }
 359
 360
 361 static void IPADDRESS_SetFocusToField (const IPADDRESS_INFO *infoPtr, INT index)
 362 {
 363     TRACE("(index=%d)\n", index);
 364
 365     if (index > 3 || index < 0) index=0;
 366
 367     SetFocus (infoPtr->Part[index].EditHwnd);
 368 }
 369
 370
 371 static BOOL IPADDRESS_ConstrainField (const IPADDRESS_INFO *infoPtr, int currentfield)
 372 {
 373     static const WCHAR fmt[] = { '%', 'd', 0 };
 374     const IPPART_INFO *part;
 375     int curValue, newValue;
 376     WCHAR field[10];
 377
 378     TRACE("(currentfield=%d)\n", currentfield);
 379
 380     if (currentfield < 0 || currentfield > 3) return FALSE;
 381
 382     part = &infoPtr->Part[currentfield];
 383     if (!GetWindowTextW (part->EditHwnd, field, 4)) return FALSE;
 384
 385     curValue = atoiW(field);
 386     TRACE("  curValue=%d\n", curValue);
 387
 388     newValue = IPADDRESS_IPNotify(infoPtr, currentfield, curValue);
 389     TRACE("  newValue=%d\n", newValue);
 390
 391     if (newValue < part->LowerLimit) newValue = part->LowerLimit;
 392     if (newValue > part->UpperLimit) newValue = part->UpperLimit;
 393
 394     if (newValue == curValue) return FALSE;
 395
 396     wsprintfW (field, fmt, newValue);
 397     TRACE("  field=%s\n", debugstr_w(field));
 398     return SetWindowTextW (part->EditHwnd, field);
 399 }
 400
 401
 402 static BOOL IPADDRESS_GotoNextField (const IPADDRESS_INFO *infoPtr, int cur, int sel)
 403 {
 404     TRACE("\n");
 405
 406     if(cur >= -1 && cur < 4) {
 407         IPADDRESS_ConstrainField(infoPtr, cur);
 408
 409         if(cur < 3) {
 410             const IPPART_INFO *next = &infoPtr->Part[cur + 1];
 411             int start = 0, end = 0;
 412             SetFocus (next->EditHwnd);
 413             if (sel != POS_DEFAULT) {
 414                 if (sel == POS_RIGHT)
 415                     start = end = GetWindowTextLengthW(next->EditHwnd);
 416                 else if (sel == POS_SELALL)
 417                     end = -1;
 418                 SendMessageW(next->EditHwnd, EM_SETSEL, start, end);
 419             }
 420             return TRUE;
 421         }
 422
 423     }
 424     return FALSE;
 425 }
 426
 427
 428 /*
 429  * period: move and select the text in the next field to the right if
 430  *         the current field is not empty(l!=0), we are not in the
 431  *         left most position, and nothing is selected(startsel==endsel)
 432  *
 433  * spacebar: same behavior as period
 434  *
 435  * alpha characters: completely ignored
 436  *
 437  * digits: accepted when field text length < 2 ignored otherwise.
 438  *         when 3 numbers have been entered into the field the value
 439  *         of the field is checked, if the field value exceeds the
 440  *         maximum value and is changed the field remains the current
 441  *         field, otherwise focus moves to the field to the right
 442  *
 443  * tab: change focus from the current ipaddress control to the next
 444  *      control in the tab order
 445  *
 446  * right arrow: move to the field on the right to the left most
 447  *              position in that field if no text is selected,
 448  *              we are in the right most position in the field,
 449  *              we are not in the right most field
 450  *
 451  * left arrow: move to the field on the left to the right most
 452  *             position in that field if no text is selected,
 453  *             we are in the left most position in the current field
 454  *             and we are not in the left most field
 455  *
 456  * backspace: delete the character to the left of the cursor position,
 457  *            if none are present move to the field on the left if
 458  *            we are not in the left most field and delete the right
 459  *            most digit in that field while keeping the cursor
 460  *            on the right side of the field
 461  */
 462 LRESULT CALLBACK
 463 IPADDRESS_SubclassProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 464 {
 465     HWND Self = GetPropW (hwnd, IP_SUBCLASS_PROP);
 466     IPADDRESS_INFO *infoPtr = (IPADDRESS_INFO *)GetWindowLongPtrW (Self, 0);
 467     CHAR c = (CHAR)wParam;
 468     INT index, len = 0, startsel, endsel;
 469     IPPART_INFO *part;
 470
 471     TRACE("(hwnd=%p msg=0x%x wparam=0x%lx lparam=0x%lx)\n", hwnd, uMsg, wParam, lParam);
 472
 473     if ( (index = IPADDRESS_GetPartIndex(infoPtr, hwnd)) < 0) return 0;
 474     part = &infoPtr->Part[index];
 475
 476     if (uMsg == WM_CHAR || uMsg == WM_KEYDOWN) {
 477         len = GetWindowTextLengthW (hwnd);
 478         SendMessageW(hwnd, EM_GETSEL, (WPARAM)&startsel, (LPARAM)&endsel);
 479     }
 480     switch (uMsg) {
 481         case WM_CHAR:
 482             if(isdigit(c)) {
 483                 if(len == 2 && startsel==endsel && endsel==len) {
 484                     /* process the digit press before we check the field */
 485                     int return_val = CallWindowProcW (part->OrigProc, hwnd, uMsg, wParam, lParam);
 486
 487                     /* if the field value was changed stay at the current field */
 488                     if(!IPADDRESS_ConstrainField(infoPtr, index))
 489                         IPADDRESS_GotoNextField (infoPtr, index, POS_DEFAULT);
 490
 491                     return return_val;
 492                 } else if (len == 3 && startsel==endsel && endsel==len)
 493                     IPADDRESS_GotoNextField (infoPtr, index, POS_SELALL);
 494                 else if (len < 3 || startsel != endsel) break;
 495             } else if(c == '.' || c == ' ') {
 496                 if(len && startsel==endsel && startsel != 0) {
 497                     IPADDRESS_GotoNextField(infoPtr, index, POS_SELALL);
 498                 }
 499             } else if (c == VK_BACK) break;
 500             return 0;
 501
 502         case WM_KEYDOWN:
 503             switch(c) {
 504                 case VK_RIGHT:
 505                     if(startsel==endsel && startsel==len) {
 506                         IPADDRESS_GotoNextField(infoPtr, index, POS_LEFT);
 507                         return 0;
 508                     }
 509                     break;
 510                 case VK_LEFT:
 511                     if(startsel==0 && startsel==endsel && index > 0) {
 512                         IPADDRESS_GotoNextField(infoPtr, index - 2, POS_RIGHT);
 513                         return 0;
 514                     }
 515                     break;
 516                 case VK_BACK:
 517                     if(startsel==endsel && startsel==0 && index > 0) {
 518                         IPPART_INFO *prev = &infoPtr->Part[index-1];
 519                         WCHAR val[10];
 520
 521                         if(GetWindowTextW(prev->EditHwnd, val, 5)) {
 522                             val[lstrlenW(val) - 1] = 0;
 523                             SetWindowTextW(prev->EditHwnd, val);
 524                         }
 525
 526                         IPADDRESS_GotoNextField(infoPtr, index - 2, POS_RIGHT);
 527                         return 0;
 528                     }
 529                     break;
 530             }
 531             break;
 532         case WM_KILLFOCUS:
 533             if (IPADDRESS_GetPartIndex(infoPtr, (HWND)wParam) < 0)
 534                 IPADDRESS_Notify(infoPtr, EN_KILLFOCUS);
 535             break;
 536         case WM_SETFOCUS:
 537             if (IPADDRESS_GetPartIndex(infoPtr, (HWND)wParam) < 0)
 538                 IPADDRESS_Notify(infoPtr, EN_SETFOCUS);
 539             break;
 540     }
 541     return CallWindowProcW (part->OrigProc, hwnd, uMsg, wParam, lParam);
 542 }
 543
 544
 545 static LRESULT WINAPI
 546 IPADDRESS_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 547 {
 548     IPADDRESS_INFO *infoPtr = (IPADDRESS_INFO *)GetWindowLongPtrW (hwnd, 0);
 549
 550     TRACE("(hwnd=%p msg=0x%x wparam=0x%lx lparam=0x%lx)\n", hwnd, uMsg, wParam, lParam);
 551
 552     if (!infoPtr && (uMsg != WM_CREATE))
 553         return DefWindowProcW (hwnd, uMsg, wParam, lParam);
 554
 555     switch (uMsg)
 556     {
 557         case WM_CREATE:
 558             return IPADDRESS_Create (hwnd, (LPCREATESTRUCTA)lParam);
 559
 560         case WM_DESTROY:
 561             return IPADDRESS_Destroy (infoPtr);
 562
 563         case WM_ENABLE:
 564             return IPADDRESS_Enable (infoPtr, (BOOL)wParam);
 565
 566         case WM_PAINT:
 567             return IPADDRESS_Paint (infoPtr, (HDC)wParam);
 568
 569         case WM_COMMAND:
 570             switch(wParam >> 16) {
 571                 case EN_CHANGE:
 572                     IPADDRESS_UpdateText(infoPtr);
 573                     IPADDRESS_Notify(infoPtr, EN_CHANGE);
 574                     break;
 575                 case EN_KILLFOCUS:
 576                     IPADDRESS_ConstrainField(infoPtr, IPADDRESS_GetPartIndex(infoPtr, (HWND)lParam));
 577                     break;
 578             }
 579             break;
 580
 581         case WM_SYSCOLORCHANGE:
 582             COMCTL32_RefreshSysColors();
 583             return 0;
 584
 585         case IPM_CLEARADDRESS:
 586             IPADDRESS_ClearAddress (infoPtr);
 587             break;
 588
 589         case IPM_SETADDRESS:
 590             return IPADDRESS_SetAddress (infoPtr, (DWORD)lParam);
 591
 592         case IPM_GETADDRESS:
 593             return IPADDRESS_GetAddress (infoPtr, (LPDWORD)lParam);
 594
 595         case IPM_SETRANGE:
 596             return IPADDRESS_SetRange (infoPtr, (int)wParam, (WORD)lParam);
 597
 598         case IPM_SETFOCUS:
 599             IPADDRESS_SetFocusToField (infoPtr, (int)wParam);
 600             break;
 601
 602         case IPM_ISBLANK:
 603             return IPADDRESS_IsBlank (infoPtr);
 604
 605         default:
 606             if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
 607                 ERR("unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
 608             return DefWindowProcW (hwnd, uMsg, wParam, lParam);
 609     }
 610     return 0;
 611 }
 612
 613
 614 void IPADDRESS_Register (void)
 615 {
 616     WNDCLASSW wndClass;
 617
 618     ZeroMemory (&wndClass, sizeof(WNDCLASSW));
 619     wndClass.style         = CS_GLOBALCLASS | CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW;
 620     wndClass.lpfnWndProc   = IPADDRESS_WindowProc;
 621     wndClass.cbClsExtra    = 0;
 622     wndClass.cbWndExtra    = sizeof(IPADDRESS_INFO *);
 623     wndClass.hCursor       = LoadCursorW (0, (LPWSTR)IDC_IBEAM);
 624     wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
 625     wndClass.lpszClassName = WC_IPADDRESSW;
 626
 627     RegisterClassW (&wndClass);
 628 }
 629
 630
 631 void IPADDRESS_Unregister (void)
 632 {
 633     UnregisterClassW (WC_IPADDRESSW, NULL);
 634 }