dlls/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 <ctype.h>
  36 #include <stdlib.h>
  37 #include <stdarg.h>
  38 #include <stdio.h>
  39 #include <string.h>
  40
  41 #include "windef.h"
  42 #include "winbase.h"
  43 #include "wingdi.h"
  44 #include "winuser.h"
  45 #include "winnls.h"
  46 #include "commctrl.h"
  47 #include "comctl32.h"
  48 #include "wine/unicode.h"
  49 #include "wine/debug.h"
  50
  51 WINE_DEFAULT_DEBUG_CHANNEL(ipaddress);
  52
  53 typedef struct
  54 {
  55     HWND     EditHwnd;
  56     INT      LowerLimit;
  57     INT      UpperLimit;
  58     WNDPROC  OrigProc;
  59 } IPPART_INFO;
  60
  61 typedef struct
  62 {
  63     HWND        Self;
  64     HWND        Notify;
  65     BOOL        Enabled;
  66     IPPART_INFO Part[4];
  67 } IPADDRESS_INFO;
  68
  69 static const WCHAR IP_SUBCLASS_PROP[] =
  70     { 'C', 'C', 'I', 'P', '3', '2', 'S', 'u', 'b', 'c', 'l', 'a', 's', 's', 'I', 'n', 'f', 'o', 0 };
  71
  72 #define POS_DEFAULT     0
  73 #define POS_LEFT        1
  74 #define POS_RIGHT       2
  75 #define POS_SELALL      3
  76
  77 static LRESULT CALLBACK
  78 IPADDRESS_SubclassProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
  79
  80 static void IPADDRESS_UpdateText (const IPADDRESS_INFO *infoPtr)
  81 {
  82     static const WCHAR zero[2] = {'0', 0};
  83     static const WCHAR dot[2]  = {'.', 0};
  84     WCHAR field[4];
  85     WCHAR ip[16];
  86     INT i;
  87
  88     ip[0] = 0;
  89
  90     for (i = 0; i < 4; i++) {
  91         if (GetWindowTextW (infoPtr->Part[i].EditHwnd, field, 4))
  92             strcatW(ip, field);
  93         else
  94             /* empty edit treated as zero */
  95             strcatW(ip, zero);
  96         if (i != 3)
  97             strcatW(ip, dot);
  98     }
  99
 100     SetWindowTextW(infoPtr->Self, ip);
 101 }
 102
 103 static LRESULT IPADDRESS_Notify (const IPADDRESS_INFO *infoPtr, UINT command)
 104 {
 105     HWND hwnd = infoPtr->Self;
 106
 107     TRACE("(command=%x)\n", command);
 108
 109     return SendMessageW (infoPtr->Notify, WM_COMMAND,
 110              MAKEWPARAM (GetWindowLongPtrW (hwnd, GWLP_ID), command), (LPARAM)hwnd);
 111 }
 112
 113 static INT IPADDRESS_IPNotify (const IPADDRESS_INFO *infoPtr, INT field, INT value)
 114 {
 115     NMIPADDRESS nmip;
 116
 117     TRACE("(field=%x, value=%d)\n", field, value);
 118
 119     nmip.hdr.hwndFrom = infoPtr->Self;
 120     nmip.hdr.idFrom   = GetWindowLongPtrW (infoPtr->Self, GWLP_ID);
 121     nmip.hdr.code     = IPN_FIELDCHANGED;
 122
 123     nmip.iField = field;
 124     nmip.iValue = value;
 125
 126     SendMessageW (infoPtr->Notify, WM_NOTIFY, nmip.hdr.idFrom, (LPARAM)&nmip);
 127
 128     TRACE("<-- %d\n", nmip.iValue);
 129
 130     return nmip.iValue;
 131 }
 132
 133
 134 static int IPADDRESS_GetPartIndex(const IPADDRESS_INFO *infoPtr, HWND hwnd)
 135 {
 136     int i;
 137
 138     TRACE("(hwnd=%p)\n", hwnd);
 139
 140     for (i = 0; i < 4; i++)
 141         if (infoPtr->Part[i].EditHwnd == hwnd) return i;
 142
 143     ERR("We subclassed the wrong window! (hwnd=%p)\n", hwnd);
 144     return -1;
 145 }
 146
 147
 148 static LRESULT IPADDRESS_Draw (const IPADDRESS_INFO *infoPtr, HDC hdc)
 149 {
 150     static const WCHAR dotW[] = { '.', 0 };
 151     RECT rect, rcPart;
 152     COLORREF bgCol, fgCol;
 153     int i;
 154
 155     TRACE("\n");
 156
 157     GetClientRect (infoPtr->Self, &rect);
 158
 159     if (infoPtr->Enabled) {
 160         bgCol = comctl32_color.clrWindow;
 161         fgCol = comctl32_color.clrWindowText;
 162     } else {
 163         bgCol = comctl32_color.clr3dFace;
 164         fgCol = comctl32_color.clrGrayText;
 165     }
 166
 167     FillRect (hdc, &rect, (HBRUSH)(DWORD_PTR)(bgCol+1));
 168     DrawEdge (hdc, &rect, EDGE_SUNKEN, BF_RECT | BF_ADJUST);
 169
 170     SetBkColor  (hdc, bgCol);
 171     SetTextColor(hdc, fgCol);
 172
 173     for (i = 0; i < 3; i++) {
 174         GetWindowRect (infoPtr->Part[i].EditHwnd, &rcPart);
 175         MapWindowPoints( 0, infoPtr->Self, (POINT *)&rcPart, 2 );
 176         rect.left = rcPart.right;
 177         GetWindowRect (infoPtr->Part[i+1].EditHwnd, &rcPart);
 178         MapWindowPoints( 0, infoPtr->Self, (POINT *)&rcPart, 2 );
 179         rect.right = rcPart.left;
 180         DrawTextW(hdc, dotW, 1, &rect, DT_SINGLELINE | DT_CENTER | DT_BOTTOM);
 181     }
 182
 183     return 0;
 184 }
 185
 186
 187 static LRESULT IPADDRESS_Create (HWND hwnd, const CREATESTRUCTA *lpCreate)
 188 {
 189     IPADDRESS_INFO *infoPtr;
 190     RECT rcClient, edit;
 191     int i, fieldsize;
 192     HFONT hFont, hSysFont;
 193     LOGFONTW logFont, logSysFont;
 194
 195     TRACE("\n");
 196
 197     SetWindowLongW (hwnd, GWL_STYLE,
 198                     GetWindowLongW(hwnd, GWL_STYLE) & ~WS_BORDER);
 199
 200     infoPtr = Alloc (sizeof(IPADDRESS_INFO));
 201     if (!infoPtr) return -1;
 202     SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);
 203
 204     GetClientRect (hwnd, &rcClient);
 205
 206     fieldsize = (rcClient.right - rcClient.left) / 4;
 207
 208     edit.top    = rcClient.top + 2;
 209     edit.bottom = rcClient.bottom - 2;
 210
 211     infoPtr->Self = hwnd;
 212     infoPtr->Enabled = TRUE;
 213     infoPtr->Notify = lpCreate->hwndParent;
 214
 215     hSysFont = GetStockObject(ANSI_VAR_FONT);
 216     GetObjectW(hSysFont, sizeof(LOGFONTW), &logSysFont);
 217     SystemParametersInfoW(SPI_GETICONTITLELOGFONT, 0, &logFont, 0);
 218     strcpyW(logFont.lfFaceName, logSysFont.lfFaceName);
 219     hFont = CreateFontIndirectW(&logFont);
 220
 221     for (i = 0; i < 4; i++) {
 222         IPPART_INFO* part = &infoPtr->Part[i];
 223
 224         part->LowerLimit = 0;
 225         part->UpperLimit = 255;
 226         edit.left = rcClient.left + i*fieldsize + 6;
 227         edit.right = rcClient.left + (i+1)*fieldsize - 2;
 228         part->EditHwnd =
 229                 CreateWindowW (WC_EDITW, NULL, WS_CHILD | WS_VISIBLE | ES_CENTER,
 230                                edit.left, edit.top, edit.right - edit.left,
 231                                edit.bottom - edit.top, hwnd, (HMENU) 1,
 232                                (HINSTANCE)GetWindowLongPtrW(hwnd, GWLP_HINSTANCE), NULL);
 233         SendMessageW(part->EditHwnd, WM_SETFONT, (WPARAM) hFont, FALSE);
 234         SetPropW(part->EditHwnd, IP_SUBCLASS_PROP, hwnd);
 235         part->OrigProc = (WNDPROC)
 236                 SetWindowLongPtrW (part->EditHwnd, GWLP_WNDPROC,
 237                                 (DWORD_PTR)IPADDRESS_SubclassProc);
 238         EnableWindow(part->EditHwnd, infoPtr->Enabled);
 239     }
 240
 241     IPADDRESS_UpdateText (infoPtr);
 242
 243     return 0;
 244 }
 245
 246
 247 static LRESULT IPADDRESS_Destroy (IPADDRESS_INFO *infoPtr)
 248 {
 249     int i;
 250
 251     TRACE("\n");
 252
 253     for (i = 0; i < 4; i++) {
 254         IPPART_INFO* part = &infoPtr->Part[i];
 255         SetWindowLongPtrW (part->EditHwnd, GWLP_WNDPROC, (DWORD_PTR)part->OrigProc);
 256     }
 257
 258     SetWindowLongPtrW (infoPtr->Self, 0, 0);
 259     Free (infoPtr);
 260     return 0;
 261 }
 262
 263
 264 static LRESULT IPADDRESS_Enable (IPADDRESS_INFO *infoPtr, BOOL enabled)
 265 {
 266     int i;
 267
 268     infoPtr->Enabled = enabled;
 269
 270     for (i = 0; i < 4; i++)
 271         EnableWindow(infoPtr->Part[i].EditHwnd, enabled);
 272
 273     InvalidateRgn(infoPtr->Self, NULL, FALSE);
 274     return 0;
 275 }
 276
 277
 278 static LRESULT IPADDRESS_Paint (const IPADDRESS_INFO *infoPtr, HDC hdc)
 279 {
 280     PAINTSTRUCT ps;
 281
 282     TRACE("\n");
 283
 284     if (hdc) return IPADDRESS_Draw (infoPtr, hdc);
 285
 286     hdc = BeginPaint (infoPtr->Self, &ps);
 287     IPADDRESS_Draw (infoPtr, hdc);
 288     EndPaint (infoPtr->Self, &ps);
 289     return 0;
 290 }
 291
 292
 293 static BOOL IPADDRESS_IsBlank (const IPADDRESS_INFO *infoPtr)
 294 {
 295     int i;
 296
 297     TRACE("\n");
 298
 299     for (i = 0; i < 4; i++)
 300         if (GetWindowTextLengthW (infoPtr->Part[i].EditHwnd)) return FALSE;
 301
 302     return TRUE;
 303 }
 304
 305
 306 static int IPADDRESS_GetAddress (const IPADDRESS_INFO *infoPtr, LPDWORD ip_address)
 307 {
 308     WCHAR field[5];
 309     int i, invalid = 0;
 310     DWORD ip_addr = 0;
 311
 312     TRACE("\n");
 313
 314     for (i = 0; i < 4; i++) {
 315         ip_addr *= 256;
 316         if (GetWindowTextW (infoPtr->Part[i].EditHwnd, field, 4))
 317             ip_addr += atolW(field);
 318         else
 319             invalid++;
 320     }
 321     *ip_address = ip_addr;
 322
 323     return 4 - invalid;
 324 }
 325
 326
 327 static BOOL IPADDRESS_SetRange (IPADDRESS_INFO *infoPtr, int index, WORD range)
 328 {
 329     TRACE("\n");
 330
 331     if ( (index < 0) || (index > 3) ) return FALSE;
 332
 333     infoPtr->Part[index].LowerLimit = range & 0xFF;
 334     infoPtr->Part[index].UpperLimit = (range >> 8)  & 0xFF;
 335
 336     return TRUE;
 337 }
 338
 339
 340 static void IPADDRESS_ClearAddress (const IPADDRESS_INFO *infoPtr)
 341 {
 342     WCHAR nil[1] = { 0 };
 343     int i;
 344
 345     TRACE("\n");
 346
 347     for (i = 0; i < 4; i++)
 348         SetWindowTextW (infoPtr->Part[i].EditHwnd, nil);
 349 }
 350
 351
 352 static LRESULT IPADDRESS_SetAddress (const IPADDRESS_INFO *infoPtr, DWORD ip_address)
 353 {
 354     WCHAR buf[20];
 355     static const WCHAR fmt[] = { '%', 'd', 0 };
 356     int i;
 357
 358     TRACE("\n");
 359
 360     for (i = 3; i >= 0; i--) {
 361         const IPPART_INFO* part = &infoPtr->Part[i];
 362         int value = ip_address & 0xff;
 363         if ( (value >= part->LowerLimit) && (value <= part->UpperLimit) ) {
 364             wsprintfW (buf, fmt, value);
 365             SetWindowTextW (part->EditHwnd, buf);
 366             IPADDRESS_Notify (infoPtr, EN_CHANGE);
 367         }
 368         ip_address >>= 8;
 369     }
 370
 371     return TRUE;
 372 }
 373
 374
 375 static void IPADDRESS_SetFocusToField (const IPADDRESS_INFO *infoPtr, INT index)
 376 {
 377     TRACE("(index=%d)\n", index);
 378
 379     if (index > 3 || index < 0) index=0;
 380
 381     SetFocus (infoPtr->Part[index].EditHwnd);
 382 }
 383
 384
 385 static BOOL IPADDRESS_ConstrainField (const IPADDRESS_INFO *infoPtr, int currentfield)
 386 {
 387     const IPPART_INFO *part = &infoPtr->Part[currentfield];
 388     WCHAR field[10];
 389     static const WCHAR fmt[] = { '%', 'd', 0 };
 390     int curValue, newValue;
 391
 392     TRACE("(currentfield=%d)\n", currentfield);
 393
 394     if (currentfield < 0 || currentfield > 3) return FALSE;
 395
 396     if (!GetWindowTextW (part->EditHwnd, field, 4)) return FALSE;
 397
 398     curValue = atoiW(field);
 399     TRACE("  curValue=%d\n", curValue);
 400
 401     newValue = IPADDRESS_IPNotify(infoPtr, currentfield, curValue);
 402     TRACE("  newValue=%d\n", newValue);
 403
 404     if (newValue < part->LowerLimit) newValue = part->LowerLimit;
 405     if (newValue > part->UpperLimit) newValue = part->UpperLimit;
 406
 407     if (newValue == curValue) return FALSE;
 408
 409     wsprintfW (field, fmt, newValue);
 410     TRACE("  field=%s\n", debugstr_w(field));
 411     return SetWindowTextW (part->EditHwnd, field);
 412 }
 413
 414
 415 static BOOL IPADDRESS_GotoNextField (const IPADDRESS_INFO *infoPtr, int cur, int sel)
 416 {
 417     TRACE("\n");
 418
 419     if(cur >= -1 && cur < 4) {
 420         IPADDRESS_ConstrainField(infoPtr, cur);
 421
 422         if(cur < 3) {
 423             const IPPART_INFO *next = &infoPtr->Part[cur + 1];
 424             int start = 0, end = 0;
 425             SetFocus (next->EditHwnd);
 426             if (sel != POS_DEFAULT) {
 427                 if (sel == POS_RIGHT)
 428                     start = end = GetWindowTextLengthW(next->EditHwnd);
 429                 else if (sel == POS_SELALL)
 430                     end = -1;
 431                 SendMessageW(next->EditHwnd, EM_SETSEL, start, end);
 432             }
 433             return TRUE;
 434         }
 435
 436     }
 437     return FALSE;
 438 }
 439
 440
 441 /*
 442  * period: move and select the text in the next field to the right if
 443  *         the current field is not empty(l!=0), we are not in the
 444  *         left most position, and nothing is selected(startsel==endsel)
 445  *
 446  * spacebar: same behavior as period
 447  *
 448  * alpha characters: completely ignored
 449  *
 450  * digits: accepted when field text length < 2 ignored otherwise.
 451  *         when 3 numbers have been entered into the field the value
 452  *         of the field is checked, if the field value exceeds the
 453  *         maximum value and is changed the field remains the current
 454  *         field, otherwise focus moves to the field to the right
 455  *
 456  * tab: change focus from the current ipaddress control to the next
 457  *      control in the tab order
 458  *
 459  * right arrow: move to the field on the right to the left most
 460  *              position in that field if no text is selected,
 461  *              we are in the right most position in the field,
 462  *              we are not in the right most field
 463  *
 464  * left arrow: move to the field on the left to the right most
 465  *             position in that field if no text is selected,
 466  *             we are in the left most position in the current field
 467  *             and we are not in the left most field
 468  *
 469  * backspace: delete the character to the left of the cursor position,
 470  *            if none are present move to the field on the left if
 471  *            we are not in the left most field and delete the right
 472  *            most digit in that field while keeping the cursor
 473  *            on the right side of the field
 474  */
 475 LRESULT CALLBACK
 476 IPADDRESS_SubclassProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 477 {
 478     HWND Self = GetPropW (hwnd, IP_SUBCLASS_PROP);
 479     IPADDRESS_INFO *infoPtr = (IPADDRESS_INFO *)GetWindowLongPtrW (Self, 0);
 480     CHAR c = (CHAR)wParam;
 481     INT index, len = 0, startsel, endsel;
 482     IPPART_INFO *part;
 483
 484     TRACE("(hwnd=%p msg=0x%x wparam=0x%lx lparam=0x%lx)\n", hwnd, uMsg, wParam, lParam);
 485
 486     if ( (index = IPADDRESS_GetPartIndex(infoPtr, hwnd)) < 0) return 0;
 487     part = &infoPtr->Part[index];
 488
 489     if (uMsg == WM_CHAR || uMsg == WM_KEYDOWN) {
 490         len = GetWindowTextLengthW (hwnd);
 491         SendMessageW(hwnd, EM_GETSEL, (WPARAM)&startsel, (LPARAM)&endsel);
 492     }
 493     switch (uMsg) {
 494         case WM_CHAR:
 495             if(isdigit(c)) {
 496                 if(len == 2 && startsel==endsel && endsel==len) {
 497                     /* process the digit press before we check the field */
 498                     int return_val = CallWindowProcW (part->OrigProc, hwnd, uMsg, wParam, lParam);
 499
 500                     /* if the field value was changed stay at the current field */
 501                     if(!IPADDRESS_ConstrainField(infoPtr, index))
 502                         IPADDRESS_GotoNextField (infoPtr, index, POS_DEFAULT);
 503
 504                     return return_val;
 505                 } else if (len == 3 && startsel==endsel && endsel==len)
 506                     IPADDRESS_GotoNextField (infoPtr, index, POS_SELALL);
 507                 else if (len < 3 || startsel != endsel) break;
 508             } else if(c == '.' || c == ' ') {
 509                 if(len && startsel==endsel && startsel != 0) {
 510                     IPADDRESS_GotoNextField(infoPtr, index, POS_SELALL);
 511                 }
 512             } else if (c == VK_BACK) break;
 513             return 0;
 514
 515         case WM_KEYDOWN:
 516             switch(c) {
 517                 case VK_RIGHT:
 518                     if(startsel==endsel && startsel==len) {
 519                         IPADDRESS_GotoNextField(infoPtr, index, POS_LEFT);
 520                         return 0;
 521                     }
 522                     break;
 523                 case VK_LEFT:
 524                     if(startsel==0 && startsel==endsel && index > 0) {
 525                         IPADDRESS_GotoNextField(infoPtr, index - 2, POS_RIGHT);
 526                         return 0;
 527                     }
 528                     break;
 529                 case VK_BACK:
 530                     if(startsel==endsel && startsel==0 && index > 0) {
 531                         IPPART_INFO *prev = &infoPtr->Part[index-1];
 532                         WCHAR val[10];
 533
 534                         if(GetWindowTextW(prev->EditHwnd, val, 5)) {
 535                             val[lstrlenW(val) - 1] = 0;
 536                             SetWindowTextW(prev->EditHwnd, val);
 537                         }
 538
 539                         IPADDRESS_GotoNextField(infoPtr, index - 2, POS_RIGHT);
 540                         return 0;
 541                     }
 542                     break;
 543             }
 544             break;
 545         case WM_KILLFOCUS:
 546             if (IPADDRESS_GetPartIndex(infoPtr, (HWND)wParam) < 0)
 547                 IPADDRESS_Notify(infoPtr, EN_KILLFOCUS);
 548             break;
 549         case WM_SETFOCUS:
 550             if (IPADDRESS_GetPartIndex(infoPtr, (HWND)wParam) < 0)
 551                 IPADDRESS_Notify(infoPtr, EN_SETFOCUS);
 552             break;
 553     }
 554     return CallWindowProcW (part->OrigProc, hwnd, uMsg, wParam, lParam);
 555 }
 556
 557
 558 static LRESULT WINAPI
 559 IPADDRESS_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 560 {
 561     IPADDRESS_INFO *infoPtr = (IPADDRESS_INFO *)GetWindowLongPtrW (hwnd, 0);
 562
 563     TRACE("(hwnd=%p msg=0x%x wparam=0x%lx lparam=0x%lx)\n", hwnd, uMsg, wParam, lParam);
 564
 565     if (!infoPtr && (uMsg != WM_CREATE))
 566         return DefWindowProcW (hwnd, uMsg, wParam, lParam);
 567
 568     switch (uMsg)
 569     {
 570         case WM_CREATE:
 571             return IPADDRESS_Create (hwnd, (LPCREATESTRUCTA)lParam);
 572
 573         case WM_DESTROY:
 574             return IPADDRESS_Destroy (infoPtr);
 575
 576         case WM_ENABLE:
 577             return IPADDRESS_Enable (infoPtr, (BOOL)wParam);
 578
 579         case WM_PAINT:
 580             return IPADDRESS_Paint (infoPtr, (HDC)wParam);
 581
 582         case WM_COMMAND:
 583             switch(wParam >> 16) {
 584                 case EN_CHANGE:
 585                     IPADDRESS_UpdateText(infoPtr);
 586                     IPADDRESS_Notify(infoPtr, EN_CHANGE);
 587                     break;
 588                 case EN_KILLFOCUS:
 589                     IPADDRESS_ConstrainField(infoPtr, IPADDRESS_GetPartIndex(infoPtr, (HWND)lParam));
 590                     break;
 591             }
 592             break;
 593
 594         case WM_SYSCOLORCHANGE:
 595             COMCTL32_RefreshSysColors();
 596             return 0;
 597
 598         case IPM_CLEARADDRESS:
 599             IPADDRESS_ClearAddress (infoPtr);
 600             break;
 601
 602         case IPM_SETADDRESS:
 603             return IPADDRESS_SetAddress (infoPtr, (DWORD)lParam);
 604
 605         case IPM_GETADDRESS:
 606             return IPADDRESS_GetAddress (infoPtr, (LPDWORD)lParam);
 607
 608         case IPM_SETRANGE:
 609             return IPADDRESS_SetRange (infoPtr, (int)wParam, (WORD)lParam);
 610
 611         case IPM_SETFOCUS:
 612             IPADDRESS_SetFocusToField (infoPtr, (int)wParam);
 613             break;
 614
 615         case IPM_ISBLANK:
 616             return IPADDRESS_IsBlank (infoPtr);
 617
 618         default:
 619             if ((uMsg >= WM_USER) && (uMsg < WM_APP) && !COMCTL32_IsReflectedMessage(uMsg))
 620                 ERR("unknown msg %04x wp=%08lx lp=%08lx\n", uMsg, wParam, lParam);
 621             return DefWindowProcW (hwnd, uMsg, wParam, lParam);
 622     }
 623     return 0;
 624 }
 625
 626
 627 void IPADDRESS_Register (void)
 628 {
 629     WNDCLASSW wndClass;
 630
 631     ZeroMemory (&wndClass, sizeof(WNDCLASSW));
 632     wndClass.style         = CS_GLOBALCLASS | CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW;
 633     wndClass.lpfnWndProc   = IPADDRESS_WindowProc;
 634     wndClass.cbClsExtra    = 0;
 635     wndClass.cbWndExtra    = sizeof(IPADDRESS_INFO *);
 636     wndClass.hCursor       = LoadCursorW (0, (LPWSTR)IDC_IBEAM);
 637     wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
 638     wndClass.lpszClassName = WC_IPADDRESSW;
 639
 640     RegisterClassW (&wndClass);
 641 }
 642
 643
 644 void IPADDRESS_Unregister (void)
 645 {
 646     UnregisterClassW (WC_IPADDRESSW, NULL);
 647 }