git.oblomov.eu Git - wine/blob - windows/defwnd.c

   1 /*
   2  * Default window procedure
   3  *
   4  * Copyright 1993, 1996 Alexandre Julliard
   5  *           1995 Alex Korobka
   6  */
   7
   8 #include <string.h>
   9
  10 #include "class.h"
  11 #include "win.h"
  12 #include "user.h"
  13 #include "heap.h"
  14 #include "nonclient.h"
  15 #include "winpos.h"
  16 #include "dce.h"
  17 #include "debugtools.h"
  18 #include "spy.h"
  19 #include "tweak.h"
  20 #include "cache.h"
  21 #include "windef.h"
  22 #include "wingdi.h"
  23 #include "winnls.h"
  24 #include "wine/unicode.h"
  25 #include "wine/winuser16.h"
  26
  27 DEFAULT_DEBUG_CHANNEL(win);
  28
  29   /* bits in the dwKeyData */
  30 #define KEYDATA_ALT             0x2000
  31 #define KEYDATA_PREVSTATE       0x4000
  32
  33 static short iF10Key = 0;
  34 static short iMenuSysKey = 0;
  35
  36 /***********************************************************************
  37  *           DEFWND_HandleWindowPosChanged
  38  *
  39  * Handle the WM_WINDOWPOSCHANGED message.
  40  */
  41 static void DEFWND_HandleWindowPosChanged( WND *wndPtr, UINT flags )
  42 {
  43     WPARAM16 wp = SIZE_RESTORED;
  44
  45     if (!(flags & SWP_NOCLIENTMOVE))
  46         SendMessage16( wndPtr->hwndSelf, WM_MOVE, 0,
  47                     MAKELONG(wndPtr->rectClient.left, wndPtr->rectClient.top));
  48     if (!(flags & SWP_NOCLIENTSIZE))
  49     {
  50         if (wndPtr->dwStyle & WS_MAXIMIZE) wp = SIZE_MAXIMIZED;
  51         else if (wndPtr->dwStyle & WS_MINIMIZE) wp = SIZE_MINIMIZED;
  52
  53         SendMessage16( wndPtr->hwndSelf, WM_SIZE, wp,
  54                      MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left,
  55                             wndPtr->rectClient.bottom-wndPtr->rectClient.top));
  56     }
  57 }
  58
  59
  60 /***********************************************************************
  61  *           DEFWND_SetTextA
  62  *
  63  * Set the window text.
  64  */
  65 void DEFWND_SetTextA( WND *wndPtr, LPCSTR text )
  66 {
  67     int count;
  68
  69     if (!text) text = "";
  70     count = MultiByteToWideChar( CP_ACP, 0, text, -1, NULL, 0 );
  71
  72     if (wndPtr->text) HeapFree(SystemHeap, 0, wndPtr->text);
  73     if ((wndPtr->text = HeapAlloc(SystemHeap, 0, count * sizeof(WCHAR))))
  74         MultiByteToWideChar( CP_ACP, 0, text, -1, wndPtr->text, count );
  75     else
  76         ERR("Not enough memory for window text");
  77
  78     wndPtr->pDriver->pSetText(wndPtr, wndPtr->text);
  79 }
  80
  81 /***********************************************************************
  82  *           DEFWND_SetTextW
  83  *
  84  * Set the window text.
  85  */
  86 void DEFWND_SetTextW( WND *wndPtr, LPCWSTR text )
  87 {
  88     static const WCHAR empty_string[] = {0};
  89     int count;
  90
  91     if (!text) text = empty_string;
  92     count = strlenW(text) + 1;
  93
  94     if (wndPtr->text) HeapFree(SystemHeap, 0, wndPtr->text);
  95     if ((wndPtr->text = HeapAlloc(SystemHeap, 0, count * sizeof(WCHAR))))
  96         strcpyW( wndPtr->text, text );
  97     else
  98         ERR("Not enough memory for window text");
  99
 100     wndPtr->pDriver->pSetText(wndPtr, wndPtr->text);
 101 }
 102
 103 /***********************************************************************
 104  *           DEFWND_ControlColor
 105  *
 106  * Default colors for control painting.
 107  */
 108 HBRUSH DEFWND_ControlColor( HDC hDC, UINT16 ctlType )
 109 {
 110     if( ctlType == CTLCOLOR_SCROLLBAR)
 111     {
 112         HBRUSH hb = GetSysColorBrush(COLOR_SCROLLBAR);
 113         if (TWEAK_WineLook == WIN31_LOOK) {
 114            SetTextColor( hDC, RGB(0, 0, 0) );
 115            SetBkColor( hDC, RGB(255, 255, 255) );
 116         } else {
 117            COLORREF bk = GetSysColor(COLOR_3DHILIGHT);
 118            SetTextColor( hDC, GetSysColor(COLOR_3DFACE));
 119            SetBkColor( hDC, bk);
 120
 121            /* if COLOR_WINDOW happens to be the same as COLOR_3DHILIGHT
 122             * we better use 0x55aa bitmap brush to make scrollbar's background
 123             * look different from the window background.
 124             */
 125            if (bk == GetSysColor(COLOR_WINDOW)) {
 126                return CACHE_GetPattern55AABrush();
 127            }
 128         }
 129         UnrealizeObject( hb );
 130         return hb;
 131     }
 132
 133     SetTextColor( hDC, GetSysColor(COLOR_WINDOWTEXT));
 134
 135     if (TWEAK_WineLook > WIN31_LOOK) {
 136         if ((ctlType == CTLCOLOR_EDIT) || (ctlType == CTLCOLOR_LISTBOX))
 137             SetBkColor( hDC, GetSysColor(COLOR_WINDOW) );
 138         else {
 139             SetBkColor( hDC, GetSysColor(COLOR_3DFACE) );
 140             return GetSysColorBrush(COLOR_3DFACE);
 141         }
 142     }
 143     else
 144         SetBkColor( hDC, GetSysColor(COLOR_WINDOW) );
 145     return GetSysColorBrush(COLOR_WINDOW);
 146 }
 147
 148
 149 /***********************************************************************
 150  *           DEFWND_SetRedraw
 151  */
 152 static void DEFWND_SetRedraw( WND* wndPtr, WPARAM wParam )
 153 {
 154     BOOL bVisible = wndPtr->dwStyle & WS_VISIBLE;
 155
 156     TRACE("%04x %i\n", wndPtr->hwndSelf, (wParam!=0) );
 157
 158     if( wParam )
 159     {
 160         if( !bVisible )
 161         {
 162             wndPtr->dwStyle |= WS_VISIBLE;
 163             DCE_InvalidateDCE( wndPtr, &wndPtr->rectWindow );
 164         }
 165     }
 166     else if( bVisible )
 167     {
 168         if( wndPtr->dwStyle & WS_MINIMIZE ) wParam = RDW_VALIDATE;
 169         else wParam = RDW_ALLCHILDREN | RDW_VALIDATE;
 170
 171         PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, 0, wParam, 0 );
 172         DCE_InvalidateDCE( wndPtr, &wndPtr->rectWindow );
 173         wndPtr->dwStyle &= ~WS_VISIBLE;
 174     }
 175 }
 176
 177 /***********************************************************************
 178  *           DEFWND_Print
 179  *
 180  * This method handles the default behavior for the WM_PRINT message.
 181  */
 182 static void DEFWND_Print(
 183   WND*  wndPtr,
 184   HDC   hdc,
 185   ULONG uFlags)
 186 {
 187   /*
 188    * Visibility flag.
 189    */
 190   if ( (uFlags & PRF_CHECKVISIBLE) &&
 191        !IsWindowVisible(wndPtr->hwndSelf) )
 192       return;
 193
 194   /*
 195    * Unimplemented flags.
 196    */
 197   if ( (uFlags & PRF_CHILDREN) ||
 198        (uFlags & PRF_OWNED)    ||
 199        (uFlags & PRF_NONCLIENT) )
 200   {
 201     WARN("WM_PRINT message with unsupported flags\n");
 202   }
 203
 204   /*
 205    * Background
 206    */
 207   if ( uFlags & PRF_ERASEBKGND)
 208     SendMessageA(wndPtr->hwndSelf, WM_ERASEBKGND, (WPARAM)hdc, 0);
 209
 210   /*
 211    * Client area
 212    */
 213   if ( uFlags & PRF_CLIENT)
 214     SendMessageA(wndPtr->hwndSelf, WM_PRINTCLIENT, (WPARAM)hdc, PRF_CLIENT);
 215 }
 216
 217 /***********************************************************************
 218  *           DEFWND_DefWinProc
 219  *
 220  * Default window procedure for messages that are the same in Win16 and Win32.
 221  */
 222 static LRESULT DEFWND_DefWinProc( WND *wndPtr, UINT msg, WPARAM wParam,
 223                                   LPARAM lParam )
 224 {
 225     switch(msg)
 226     {
 227     case WM_NCPAINT:
 228         return NC_HandleNCPaint( wndPtr->hwndSelf, (HRGN)wParam );
 229
 230     case WM_NCHITTEST:
 231         {
 232             POINT pt;
 233             pt.x = SLOWORD(lParam);
 234             pt.y = SHIWORD(lParam);
 235             return NC_HandleNCHitTest( wndPtr->hwndSelf, pt );
 236         }
 237
 238     case WM_NCLBUTTONDOWN:
 239         return NC_HandleNCLButtonDown( wndPtr, wParam, lParam );
 240
 241     case WM_LBUTTONDBLCLK:
 242     case WM_NCLBUTTONDBLCLK:
 243         return NC_HandleNCLButtonDblClk( wndPtr, wParam, lParam );
 244
 245     case WM_NCRBUTTONDOWN:
 246         /* in Windows, capture is taken when right-clicking on the caption bar */
 247         if (wParam==HTCAPTION)
 248         {
 249             SetCapture(wndPtr->hwndSelf);
 250         }
 251         break;
 252
 253     case WM_RBUTTONUP:
 254         if (wndPtr->hwndSelf == GetCapture())
 255         {
 256             /* release capture if we took it on WM_NCRBUTTONDOWN */
 257             ReleaseCapture();
 258         }
 259         if ((wndPtr->flags & WIN_ISWIN32) || (TWEAK_WineLook > WIN31_LOOK))
 260         {
 261             ClientToScreen16(wndPtr->hwndSelf, (LPPOINT16)&lParam);
 262             SendMessageA( wndPtr->hwndSelf, WM_CONTEXTMENU,
 263                           wndPtr->hwndSelf, lParam);
 264         }
 265         break;
 266
 267     case WM_NCRBUTTONUP:
 268         /*
 269          * FIXME : we must NOT send WM_CONTEXTMENU on a WM_NCRBUTTONUP (checked
 270          * in Windows), but what _should_ we do? According to MSDN :
 271          * "If it is appropriate to do so, the system sends the WM_SYSCOMMAND
 272          * message to the window". When is it appropriate?
 273          */
 274         break;
 275
 276     case WM_CONTEXTMENU:
 277         if( wndPtr->dwStyle & WS_CHILD )
 278             SendMessageA( wndPtr->parent->hwndSelf, msg, wParam, lParam );
 279         else if (wndPtr->hSysMenu)
 280         {
 281             LONG hitcode;
 282             POINT pt;
 283             pt.x = SLOWORD(lParam);
 284             pt.y = SHIWORD(lParam);
 285
 286             /*
 287              * WM_CONTEXTMENU coordinates are relative to screen, but
 288              * NC_HandleNCHitTest expects coordinates relative to the parent's
 289              * client area (to compare with the rectangle returned by
 290              * GetWindowRect)
 291              */
 292             if (wndPtr->parent)
 293                 ScreenToClient(wndPtr->parent->hwndSelf, &pt);
 294
 295             hitcode = NC_HandleNCHitTest(wndPtr->hwndSelf, pt);
 296
 297             /* Track system popup if click was in the caption area. */
 298             if (hitcode==HTCAPTION || hitcode==HTSYSMENU)
 299                TrackPopupMenu(GetSystemMenu(wndPtr->hwndSelf, FALSE),
 300                                TPM_LEFTBUTTON | TPM_RIGHTBUTTON,
 301                                pt.x, pt.y, 0, wndPtr->hwndSelf, NULL);
 302         }
 303         break;
 304
 305     case WM_NCACTIVATE:
 306         return NC_HandleNCActivate( wndPtr, wParam );
 307
 308     case WM_NCDESTROY:
 309         if (wndPtr->text) HeapFree( SystemHeap, 0, wndPtr->text );
 310         wndPtr->text = NULL;
 311         if (wndPtr->pVScroll) HeapFree( SystemHeap, 0, wndPtr->pVScroll );
 312         if (wndPtr->pHScroll) HeapFree( SystemHeap, 0, wndPtr->pHScroll );
 313         wndPtr->pVScroll = wndPtr->pHScroll = NULL;
 314         return 0;
 315
 316     case WM_PRINT:
 317         DEFWND_Print(wndPtr, (HDC)wParam, lParam);
 318         return 0;
 319
 320     case WM_PAINTICON:
 321     case WM_PAINT:
 322         {
 323             PAINTSTRUCT16 ps;
 324             HDC16 hdc = BeginPaint16( wndPtr->hwndSelf, &ps );
 325             if( hdc )
 326             {
 327               if( (wndPtr->dwStyle & WS_MINIMIZE) && wndPtr->class->hIcon )
 328               {
 329                 int x = (wndPtr->rectWindow.right - wndPtr->rectWindow.left -
 330                         GetSystemMetrics(SM_CXICON))/2;
 331                 int y = (wndPtr->rectWindow.bottom - wndPtr->rectWindow.top -
 332                         GetSystemMetrics(SM_CYICON))/2;
 333                 TRACE("Painting class icon: vis rect=(%i,%i - %i,%i)\n",
 334                 ps.rcPaint.left, ps.rcPaint.top, ps.rcPaint.right, ps.rcPaint.bottom );
 335                 DrawIcon( hdc, x, y, wndPtr->class->hIcon );
 336               }
 337               EndPaint16( wndPtr->hwndSelf, &ps );
 338             }
 339             return 0;
 340         }
 341
 342     case WM_SYNCPAINT:
 343         if (wndPtr->hrgnUpdate)
 344         {
 345            RedrawWindow ( wndPtr->hwndSelf, 0, wndPtr->hrgnUpdate,
 346                     RDW_ERASENOW | RDW_ERASE | RDW_FRAME | RDW_ALLCHILDREN );
 347         }
 348         return 0;
 349
 350     case WM_SETREDRAW:
 351         DEFWND_SetRedraw( wndPtr, wParam );
 352         return 0;
 353
 354     case WM_CLOSE:
 355         DestroyWindow( wndPtr->hwndSelf );
 356         return 0;
 357
 358     case WM_MOUSEACTIVATE:
 359         if (wndPtr->dwStyle & WS_CHILD)
 360         {
 361             LONG ret = SendMessage16( wndPtr->parent->hwndSelf,
 362                                       WM_MOUSEACTIVATE, wParam, lParam );
 363             if (ret) return ret;
 364         }
 365
 366         /* Caption clicks are handled by the NC_HandleNCLButtonDown() */
 367         return (LOWORD(lParam) >= HTCLIENT) ? MA_ACTIVATE : MA_NOACTIVATE;
 368
 369     case WM_ACTIVATE:
 370         /* The default action in Windows is to set the keyboard focus to
 371          * the window, if it's being activated and not minimized */
 372         if (LOWORD(wParam) != WA_INACTIVE) {
 373                 if (!(wndPtr->dwStyle & WS_MINIMIZE))
 374                         SetFocus(wndPtr->hwndSelf);
 375         }
 376         break;
 377
 378      case WM_MOUSEWHEEL:
 379         if (wndPtr->dwStyle & WS_CHILD)
 380         {
 381             return SendMessageA( wndPtr->parent->hwndSelf,
 382                                  WM_MOUSEWHEEL, wParam, lParam );
 383         }
 384         break;
 385
 386     case WM_ERASEBKGND:
 387     case WM_ICONERASEBKGND:
 388         {
 389             RECT rect;
 390
 391             if (!wndPtr->class->hbrBackground) return 0;
 392
 393             /*  Since WM_ERASEBKGND may receive either a window dc or a    */
 394             /*  client dc, the area to be erased has to be retrieved from  */
 395             /*  the device context.                                        */
 396             GetClipBox( (HDC)wParam, &rect );
 397
 398             /* Always call the Win32 variant of FillRect even on Win16,
 399              * since despite the fact that Win16, as well as Win32,
 400              * supports special background brushes for a window class,
 401              * the Win16 variant of FillRect does not.
 402              */
 403             FillRect( (HDC) wParam, &rect, wndPtr->class->hbrBackground);
 404             return 1;
 405         }
 406
 407     case WM_GETDLGCODE:
 408         return 0;
 409
 410     case WM_CTLCOLORMSGBOX:
 411     case WM_CTLCOLOREDIT:
 412     case WM_CTLCOLORLISTBOX:
 413     case WM_CTLCOLORBTN:
 414     case WM_CTLCOLORDLG:
 415     case WM_CTLCOLORSTATIC:
 416     case WM_CTLCOLORSCROLLBAR:
 417         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, msg - WM_CTLCOLORMSGBOX );
 418
 419     case WM_CTLCOLOR:
 420         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, HIWORD(lParam) );
 421
 422     case WM_GETTEXTLENGTH:
 423         if (wndPtr->text) return (LRESULT)strlenW(wndPtr->text);
 424         return 0;
 425
 426     case WM_SETCURSOR:
 427         if (wndPtr->dwStyle & WS_CHILD)
 428             if (SendMessage16(wndPtr->parent->hwndSelf, WM_SETCURSOR,
 429                             wParam, lParam))
 430                 return TRUE;
 431         return NC_HandleSetCursor( wndPtr->hwndSelf, wParam, lParam );
 432
 433     case WM_SYSCOMMAND:
 434         {
 435             POINT pt;
 436             pt.x = SLOWORD(lParam);
 437             pt.y = SHIWORD(lParam);
 438             return NC_HandleSysCommand( wndPtr->hwndSelf, wParam, pt );
 439         }
 440
 441     case WM_KEYDOWN:
 442         if(wParam == VK_F10) iF10Key = VK_F10;
 443         break;
 444
 445     case WM_SYSKEYDOWN:
 446         if( HIWORD(lParam) & KEYDATA_ALT )
 447         {
 448             /* if( HIWORD(lParam) & ~KEYDATA_PREVSTATE ) */
 449               if( wParam == VK_MENU && !iMenuSysKey )
 450                 iMenuSysKey = 1;
 451               else
 452                 iMenuSysKey = 0;
 453
 454             iF10Key = 0;
 455
 456             if( wParam == VK_F4 )       /* try to close the window */
 457             {
 458                 HWND hWnd = WIN_GetTopParent( wndPtr->hwndSelf );
 459                 wndPtr = WIN_FindWndPtr( hWnd );
 460                 if( wndPtr && !(wndPtr->class->style & CS_NOCLOSE) )
 461                     PostMessage16( hWnd, WM_SYSCOMMAND, SC_CLOSE, 0 );
 462                 WIN_ReleaseWndPtr(wndPtr);
 463             }
 464         }
 465         else if( wParam == VK_F10 )
 466                 iF10Key = 1;
 467              else
 468                 if( wParam == VK_ESCAPE && (GetKeyState(VK_SHIFT) & 0x8000))
 469                     SendMessage16( wndPtr->hwndSelf, WM_SYSCOMMAND,
 470                                   (WPARAM16)SC_KEYMENU, (LPARAM)VK_SPACE);
 471         break;
 472
 473     case WM_KEYUP:
 474     case WM_SYSKEYUP:
 475         /* Press and release F10 or ALT */
 476         if (((wParam == VK_MENU) && iMenuSysKey) ||
 477             ((wParam == VK_F10) && iF10Key))
 478               SendMessage16( WIN_GetTopParent(wndPtr->hwndSelf),
 479                              WM_SYSCOMMAND, SC_KEYMENU, 0L );
 480         iMenuSysKey = iF10Key = 0;
 481         break;
 482
 483     case WM_SYSCHAR:
 484         iMenuSysKey = 0;
 485         if (wParam == VK_RETURN && (wndPtr->dwStyle & WS_MINIMIZE))
 486         {
 487             PostMessage16( wndPtr->hwndSelf, WM_SYSCOMMAND,
 488                            (WPARAM16)SC_RESTORE, 0L );
 489             break;
 490         }
 491         if ((HIWORD(lParam) & KEYDATA_ALT) && wParam)
 492         {
 493             if (wParam == VK_TAB || wParam == VK_ESCAPE) break;
 494             if (wParam == VK_SPACE && (wndPtr->dwStyle & WS_CHILD))
 495                 SendMessage16( wndPtr->parent->hwndSelf, msg, wParam, lParam );
 496             else
 497                 SendMessage16( wndPtr->hwndSelf, WM_SYSCOMMAND,
 498                                (WPARAM16)SC_KEYMENU, (LPARAM)(DWORD)wParam );
 499         }
 500         else /* check for Ctrl-Esc */
 501             if (wParam != VK_ESCAPE) MessageBeep(0);
 502         break;
 503
 504     case WM_SHOWWINDOW:
 505         if (!lParam) return 0; /* sent from ShowWindow */
 506         if (!(wndPtr->dwStyle & WS_POPUP) || !wndPtr->owner) return 0;
 507         if ((wndPtr->dwStyle & WS_VISIBLE) && wParam) return 0;
 508         else if (!(wndPtr->dwStyle & WS_VISIBLE) && !wParam) return 0;
 509         ShowWindow( wndPtr->hwndSelf, wParam ? SW_SHOWNOACTIVATE : SW_HIDE );
 510         break;
 511
 512     case WM_CANCELMODE:
 513         if (wndPtr->parent == WIN_GetDesktop()) EndMenu();
 514         if (GetCapture() == wndPtr->hwndSelf) ReleaseCapture();
 515         WIN_ReleaseDesktop();
 516         break;
 517
 518     case WM_VKEYTOITEM:
 519     case WM_CHARTOITEM:
 520         return -1;
 521
 522     case WM_DROPOBJECT:
 523         return DRAG_FILE;
 524
 525     case WM_QUERYDROPOBJECT:
 526         if (wndPtr->dwExStyle & WS_EX_ACCEPTFILES) return 1;
 527         break;
 528
 529     case WM_QUERYDRAGICON:
 530         {
 531             HICON16 hIcon=0;
 532             UINT16 len;
 533
 534             if( (hIcon=wndPtr->class->hCursor) ) return (LRESULT)hIcon;
 535             for(len=1; len<64; len++)
 536                 if((hIcon=LoadIconA(wndPtr->hInstance,MAKEINTRESOURCEA(len))))
 537                     return (LRESULT)hIcon;
 538             return (LRESULT)LoadIconA(0,IDI_APPLICATIONA);
 539         }
 540         break;
 541
 542     case WM_ISACTIVEICON:
 543         return ((wndPtr->flags & WIN_NCACTIVATED) != 0);
 544
 545     case WM_NOTIFYFORMAT:
 546       if (IsWindowUnicode(wndPtr->hwndSelf)) return NFR_UNICODE;
 547       else return NFR_ANSI;
 548
 549     case WM_QUERYOPEN:
 550     case WM_QUERYENDSESSION:
 551         return 1;
 552
 553     case WM_SETICON:
 554         {
 555                 int index = (wParam != ICON_SMALL) ? GCL_HICON : GCL_HICONSM;
 556                 HICON16 hOldIcon = GetClassLongA(wndPtr->hwndSelf, index);
 557                 SetClassLongA(wndPtr->hwndSelf, index, lParam);
 558
 559                 SetWindowPos(wndPtr->hwndSelf, 0, 0, 0, 0, 0, SWP_FRAMECHANGED
 560                          | SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE
 561                          | SWP_NOZORDER);
 562
 563                 if( wndPtr->flags & WIN_NATIVE )
 564                     wndPtr->pDriver->pSetHostAttr(wndPtr, HAK_ICONS, 0);
 565
 566                 return hOldIcon;
 567         }
 568
 569     case WM_GETICON:
 570         {
 571                 int index = (wParam != ICON_SMALL) ? GCL_HICON : GCL_HICONSM;
 572                 return GetClassLongA(wndPtr->hwndSelf, index);
 573         }
 574
 575     case WM_HELP:
 576         SendMessageA( wndPtr->parent->hwndSelf, msg, wParam, lParam );
 577         break;
 578     }
 579
 580     return 0;
 581 }
 582
 583
 584
 585 /***********************************************************************
 586  *           DefWindowProc16   (USER.107)
 587  */
 588 LRESULT WINAPI DefWindowProc16( HWND16 hwnd, UINT16 msg, WPARAM16 wParam,
 589                                 LPARAM lParam )
 590 {
 591     WND * wndPtr = WIN_FindWndPtr( hwnd );
 592     LRESULT result = 0;
 593
 594     if (!wndPtr) return 0;
 595     SPY_EnterMessage( SPY_DEFWNDPROC16, hwnd, msg, wParam, lParam );
 596
 597     switch(msg)
 598     {
 599     case WM_NCCREATE:
 600         {
 601             CREATESTRUCT16 *cs = (CREATESTRUCT16 *)PTR_SEG_TO_LIN(lParam);
 602             if (cs->lpszName)
 603                 DEFWND_SetTextA( wndPtr, (LPCSTR)PTR_SEG_TO_LIN(cs->lpszName) );
 604             result = 1;
 605         }
 606         break;
 607
 608     case WM_NCCALCSIZE:
 609         {
 610             RECT rect32;
 611             CONV_RECT16TO32( (RECT16 *)PTR_SEG_TO_LIN(lParam), &rect32 );
 612             result = NC_HandleNCCalcSize( wndPtr, &rect32 );
 613             CONV_RECT32TO16( &rect32, (RECT16 *)PTR_SEG_TO_LIN(lParam) );
 614         }
 615         break;
 616
 617     case WM_WINDOWPOSCHANGING:
 618         result = WINPOS_HandleWindowPosChanging16( wndPtr,
 619                                        (WINDOWPOS16 *)PTR_SEG_TO_LIN(lParam) );
 620         break;
 621
 622     case WM_WINDOWPOSCHANGED:
 623         {
 624             WINDOWPOS16 * winPos = (WINDOWPOS16 *)PTR_SEG_TO_LIN(lParam);
 625             DEFWND_HandleWindowPosChanged( wndPtr, winPos->flags );
 626         }
 627         break;
 628
 629     case WM_GETTEXT:
 630         if (wParam && wndPtr->text)
 631         {
 632             LPSTR dest = PTR_SEG_TO_LIN(lParam);
 633             if (!WideCharToMultiByte( CP_ACP, 0, wndPtr->text, -1, dest, wParam, NULL, NULL ))
 634                 dest[wParam-1] = 0;
 635             result = strlen(dest);
 636         }
 637         break;
 638
 639     case WM_SETTEXT:
 640         DEFWND_SetTextA( wndPtr, (LPCSTR)PTR_SEG_TO_LIN(lParam) );
 641         if( (wndPtr->dwStyle & WS_CAPTION) == WS_CAPTION )
 642             NC_HandleNCPaint( hwnd , (HRGN)1 );
 643         result = 1; /* success. FIXME: check text length */
 644         break;
 645
 646     default:
 647         result = DEFWND_DefWinProc( wndPtr, msg, wParam, lParam );
 648         break;
 649     }
 650
 651     WIN_ReleaseWndPtr(wndPtr);
 652     SPY_ExitMessage( SPY_RESULT_DEFWND16, hwnd, msg, result, wParam, lParam );
 653     return result;
 654 }
 655
 656
 657 /***********************************************************************
 658  *  DefWindowProcA [USER32.126]
 659  *
 660  */
 661 LRESULT WINAPI DefWindowProcA( HWND hwnd, UINT msg, WPARAM wParam,
 662                                  LPARAM lParam )
 663 {
 664     WND * wndPtr = WIN_FindWndPtr( hwnd );
 665     LRESULT result = 0;
 666
 667     if (!wndPtr) return 0;
 668     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
 669
 670     switch(msg)
 671     {
 672     case WM_NCCREATE:
 673         {
 674             CREATESTRUCTA *cs = (CREATESTRUCTA *)lParam;
 675             if (cs->lpszName) DEFWND_SetTextA( wndPtr, cs->lpszName );
 676             result = 1;
 677         }
 678         break;
 679
 680     case WM_NCCALCSIZE:
 681         result = NC_HandleNCCalcSize( wndPtr, (RECT *)lParam );
 682         break;
 683
 684     case WM_WINDOWPOSCHANGING:
 685         result = WINPOS_HandleWindowPosChanging( wndPtr,
 686                                                    (WINDOWPOS *)lParam );
 687         break;
 688
 689     case WM_WINDOWPOSCHANGED:
 690         {
 691             WINDOWPOS * winPos = (WINDOWPOS *)lParam;
 692             DEFWND_HandleWindowPosChanged( wndPtr, winPos->flags );
 693         }
 694         break;
 695
 696     case WM_GETTEXT:
 697         if (wParam && wndPtr->text)
 698         {
 699             if (!WideCharToMultiByte( CP_ACP, 0, wndPtr->text, -1,
 700                                       (LPSTR)lParam, wParam, NULL, NULL ))
 701                 ((LPSTR)lParam)[wParam-1] = 0;
 702             result = (LRESULT)strlen( (LPSTR)lParam );
 703         }
 704         break;
 705
 706     case WM_SETTEXT:
 707         DEFWND_SetTextA( wndPtr, (LPCSTR)lParam );
 708         if( (wndPtr->dwStyle & WS_CAPTION) == WS_CAPTION )
 709             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 710         result = 1; /* success. FIXME: check text length */
 711         break;
 712
 713     default:
 714         result = DEFWND_DefWinProc( wndPtr, msg, wParam, lParam );
 715         break;
 716     }
 717
 718     WIN_ReleaseWndPtr(wndPtr);
 719     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
 720     return result;
 721 }
 722
 723
 724 /***********************************************************************
 725  * DefWindowProcW [USER32.127] Calls default window message handler
 726  *
 727  * Calls default window procedure for messages not processed
 728  *  by application.
 729  *
 730  *  RETURNS
 731  *     Return value is dependent upon the message.
 732 */
 733 LRESULT WINAPI DefWindowProcW(
 734     HWND hwnd,      /* [in] window procedure recieving message */
 735     UINT msg,       /* [in] message identifier */
 736     WPARAM wParam,  /* [in] first message parameter */
 737     LPARAM lParam )   /* [in] second message parameter */
 738 {
 739     WND * wndPtr = WIN_FindWndPtr( hwnd );
 740     LRESULT result = 0;
 741
 742     if (!wndPtr) return 0;
 743     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
 744
 745     switch(msg)
 746     {
 747     case WM_NCCREATE:
 748         {
 749             CREATESTRUCTW *cs = (CREATESTRUCTW *)lParam;
 750             if (cs->lpszName) DEFWND_SetTextW( wndPtr, cs->lpszName );
 751             result = 1;
 752         }
 753         break;
 754
 755     case WM_GETTEXT:
 756         if (wParam && wndPtr->text)
 757         {
 758             lstrcpynW( (LPWSTR)lParam, wndPtr->text, wParam );
 759             result = strlenW( (LPWSTR)lParam );
 760         }
 761         break;
 762
 763     case WM_SETTEXT:
 764         DEFWND_SetTextW( wndPtr, (LPCWSTR)lParam );
 765         if( (wndPtr->dwStyle & WS_CAPTION) == WS_CAPTION )
 766             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 767         result = 1; /* success. FIXME: check text length */
 768         break;
 769
 770     default:
 771         result = DefWindowProcA( hwnd, msg, wParam, lParam );
 772         break;
 773     }
 774     WIN_ReleaseWndPtr(wndPtr);
 775     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
 776     return result;
 777 }