git.oblomov.eu Git - wine/blob - dlls/user32/defwnd.c

   1 /*
   2  * Default window procedure
   3  *
   4  * Copyright 1993, 1996 Alexandre Julliard
   5  *           1995 Alex Korobka
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <string.h>
  26 #include <stdarg.h>
  27
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "wingdi.h"
  31 #include "winnls.h"
  32 #include "win.h"
  33 #include "user_private.h"
  34 #include "controls.h"
  35 #include "wine/unicode.h"
  36 #include "wine/winuser16.h"
  37 #include "wine/server.h"
  38 #include "wine/exception.h"
  39 #include "wine/debug.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(win);
  42
  43   /* bits in the dwKeyData */
  44 #define KEYDATA_ALT             0x2000
  45 #define KEYDATA_PREVSTATE       0x4000
  46
  47 static short iF10Key = 0;
  48 static short iMenuSysKey = 0;
  49 static const WCHAR imm32W[] = { 'i','m','m','3','2','\0' };
  50
  51 /***********************************************************************
  52  *           DEFWND_HandleWindowPosChanged
  53  *
  54  * Handle the WM_WINDOWPOSCHANGED message.
  55  */
  56 static void DEFWND_HandleWindowPosChanged( HWND hwnd, const WINDOWPOS *winpos )
  57 {
  58     RECT rect;
  59     WND *wndPtr = WIN_GetPtr( hwnd );
  60
  61     rect = wndPtr->rectClient;
  62     WIN_ReleasePtr( wndPtr );
  63
  64     if (!(winpos->flags & SWP_NOCLIENTMOVE))
  65         SendMessageW( hwnd, WM_MOVE, 0, MAKELONG(rect.left, rect.top));
  66
  67     if (!(winpos->flags & SWP_NOCLIENTSIZE) || (winpos->flags & SWP_STATECHANGED))
  68     {
  69         WPARAM wp = SIZE_RESTORED;
  70         if (IsZoomed(hwnd)) wp = SIZE_MAXIMIZED;
  71         else if (IsIconic(hwnd)) wp = SIZE_MINIMIZED;
  72
  73         SendMessageW( hwnd, WM_SIZE, wp, MAKELONG(rect.right-rect.left, rect.bottom-rect.top) );
  74     }
  75 }
  76
  77
  78 /***********************************************************************
  79  *           DEFWND_SetTextA
  80  *
  81  * Set the window text.
  82  */
  83 static void DEFWND_SetTextA( HWND hwnd, LPCSTR text )
  84 {
  85     int count;
  86     WCHAR *textW;
  87     WND *wndPtr;
  88
  89     if (!text) text = "";
  90     count = MultiByteToWideChar( CP_ACP, 0, text, -1, NULL, 0 );
  91
  92     if (!(wndPtr = WIN_GetPtr( hwnd ))) return;
  93     if ((textW = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR))))
  94     {
  95         HeapFree(GetProcessHeap(), 0, wndPtr->text);
  96         wndPtr->text = textW;
  97         MultiByteToWideChar( CP_ACP, 0, text, -1, textW, count );
  98         SERVER_START_REQ( set_window_text )
  99         {
 100             req->handle = wine_server_user_handle( hwnd );
 101             wine_server_add_data( req, textW, (count-1) * sizeof(WCHAR) );
 102             wine_server_call( req );
 103         }
 104         SERVER_END_REQ;
 105     }
 106     else
 107         ERR("Not enough memory for window text\n");
 108     WIN_ReleasePtr( wndPtr );
 109
 110     USER_Driver->pSetWindowText( hwnd, textW );
 111 }
 112
 113 /***********************************************************************
 114  *           DEFWND_SetTextW
 115  *
 116  * Set the window text.
 117  */
 118 static void DEFWND_SetTextW( HWND hwnd, LPCWSTR text )
 119 {
 120     static const WCHAR empty_string[] = {0};
 121     WND *wndPtr;
 122     int count;
 123
 124     if (!text) text = empty_string;
 125     count = strlenW(text) + 1;
 126
 127     if (!(wndPtr = WIN_GetPtr( hwnd ))) return;
 128     HeapFree(GetProcessHeap(), 0, wndPtr->text);
 129     if ((wndPtr->text = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR))))
 130     {
 131         strcpyW( wndPtr->text, text );
 132         SERVER_START_REQ( set_window_text )
 133         {
 134             req->handle = wine_server_user_handle( hwnd );
 135             wine_server_add_data( req, wndPtr->text, (count-1) * sizeof(WCHAR) );
 136             wine_server_call( req );
 137         }
 138         SERVER_END_REQ;
 139     }
 140     else
 141         ERR("Not enough memory for window text\n");
 142     text = wndPtr->text;
 143     WIN_ReleasePtr( wndPtr );
 144
 145     USER_Driver->pSetWindowText( hwnd, text );
 146 }
 147
 148 /***********************************************************************
 149  *           DEFWND_ControlColor
 150  *
 151  * Default colors for control painting.
 152  */
 153 HBRUSH DEFWND_ControlColor( HDC hDC, UINT ctlType )
 154 {
 155     if( ctlType == CTLCOLOR_SCROLLBAR)
 156     {
 157         HBRUSH hb = GetSysColorBrush(COLOR_SCROLLBAR);
 158         COLORREF bk = GetSysColor(COLOR_3DHILIGHT);
 159         SetTextColor( hDC, GetSysColor(COLOR_3DFACE));
 160         SetBkColor( hDC, bk);
 161
 162         /* if COLOR_WINDOW happens to be the same as COLOR_3DHILIGHT
 163          * we better use 0x55aa bitmap brush to make scrollbar's background
 164          * look different from the window background.
 165          */
 166         if (bk == GetSysColor(COLOR_WINDOW))
 167             return SYSCOLOR_55AABrush;
 168
 169         UnrealizeObject( hb );
 170         return hb;
 171     }
 172
 173     SetTextColor( hDC, GetSysColor(COLOR_WINDOWTEXT));
 174
 175     if ((ctlType == CTLCOLOR_EDIT) || (ctlType == CTLCOLOR_LISTBOX))
 176         SetBkColor( hDC, GetSysColor(COLOR_WINDOW) );
 177     else {
 178         SetBkColor( hDC, GetSysColor(COLOR_3DFACE) );
 179         return GetSysColorBrush(COLOR_3DFACE);
 180     }
 181     return GetSysColorBrush(COLOR_WINDOW);
 182 }
 183
 184
 185 /***********************************************************************
 186  *           DEFWND_Print
 187  *
 188  * This method handles the default behavior for the WM_PRINT message.
 189  */
 190 static void DEFWND_Print( HWND hwnd, HDC hdc, ULONG uFlags)
 191 {
 192   /*
 193    * Visibility flag.
 194    */
 195   if ( (uFlags & PRF_CHECKVISIBLE) &&
 196        !IsWindowVisible(hwnd) )
 197       return;
 198
 199   /*
 200    * Unimplemented flags.
 201    */
 202   if ( (uFlags & PRF_CHILDREN) ||
 203        (uFlags & PRF_OWNED)    ||
 204        (uFlags & PRF_NONCLIENT) )
 205   {
 206     WARN("WM_PRINT message with unsupported flags\n");
 207   }
 208
 209   /*
 210    * Background
 211    */
 212   if ( uFlags & PRF_ERASEBKGND)
 213     SendMessageW(hwnd, WM_ERASEBKGND, (WPARAM)hdc, 0);
 214
 215   /*
 216    * Client area
 217    */
 218   if ( uFlags & PRF_CLIENT)
 219     SendMessageW(hwnd, WM_PRINTCLIENT, (WPARAM)hdc, PRF_CLIENT);
 220 }
 221
 222
 223 /*
 224  * helpers for calling IMM32
 225  *
 226  * WM_IME_* messages are generated only by IMM32,
 227  * so I assume imm32 is already LoadLibrary-ed.
 228  */
 229 static HWND DEFWND_ImmGetDefaultIMEWnd( HWND hwnd )
 230 {
 231     HINSTANCE hInstIMM = GetModuleHandleW( imm32W );
 232     HWND (WINAPI *pFunc)(HWND);
 233     HWND hwndRet = 0;
 234
 235     if (!hInstIMM)
 236     {
 237         ERR( "cannot get IMM32 handle\n" );
 238         return 0;
 239     }
 240
 241     pFunc = (void*)GetProcAddress(hInstIMM,"ImmGetDefaultIMEWnd");
 242     if ( pFunc != NULL )
 243         hwndRet = (*pFunc)( hwnd );
 244
 245     return hwndRet;
 246 }
 247
 248 static BOOL DEFWND_ImmIsUIMessageA( HWND hwndIME, UINT msg, WPARAM wParam, LPARAM lParam )
 249 {
 250     HINSTANCE hInstIMM = GetModuleHandleW( imm32W );
 251     BOOL (WINAPI *pFunc)(HWND,UINT,WPARAM,LPARAM);
 252     BOOL fRet = FALSE;
 253
 254     if (!hInstIMM)
 255     {
 256         ERR( "cannot get IMM32 handle\n" );
 257         return FALSE;
 258     }
 259
 260     pFunc = (void*)GetProcAddress(hInstIMM,"ImmIsUIMessageA");
 261     if ( pFunc != NULL )
 262         fRet = (*pFunc)( hwndIME, msg, wParam, lParam );
 263
 264     return fRet;
 265 }
 266
 267 static BOOL DEFWND_ImmIsUIMessageW( HWND hwndIME, UINT msg, WPARAM wParam, LPARAM lParam )
 268 {
 269     HINSTANCE hInstIMM = GetModuleHandleW( imm32W );
 270     BOOL (WINAPI *pFunc)(HWND,UINT,WPARAM,LPARAM);
 271     BOOL fRet = FALSE;
 272
 273     if (!hInstIMM)
 274     {
 275         ERR( "cannot get IMM32 handle\n" );
 276         return FALSE;
 277     }
 278
 279     pFunc = (void*)GetProcAddress(hInstIMM,"ImmIsUIMessageW");
 280     if ( pFunc != NULL )
 281         fRet = (*pFunc)( hwndIME, msg, wParam, lParam );
 282
 283     return fRet;
 284 }
 285
 286
 287
 288 /***********************************************************************
 289  *           DEFWND_DefWinProc
 290  *
 291  * Default window procedure for messages that are the same in Ansi and Unicode.
 292  */
 293 static LRESULT DEFWND_DefWinProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
 294 {
 295     switch(msg)
 296     {
 297     case WM_NCPAINT:
 298         return NC_HandleNCPaint( hwnd, (HRGN)wParam );
 299
 300     case WM_NCHITTEST:
 301         {
 302             POINT pt;
 303             pt.x = (short)LOWORD(lParam);
 304             pt.y = (short)HIWORD(lParam);
 305             return NC_HandleNCHitTest( hwnd, pt );
 306         }
 307
 308     case WM_NCCALCSIZE:
 309         return NC_HandleNCCalcSize( hwnd, (RECT *)lParam );
 310
 311     case WM_WINDOWPOSCHANGING:
 312         return WINPOS_HandleWindowPosChanging( hwnd, (WINDOWPOS *)lParam );
 313
 314     case WM_WINDOWPOSCHANGED:
 315         DEFWND_HandleWindowPosChanged( hwnd, (const WINDOWPOS *)lParam );
 316         break;
 317
 318     case WM_LBUTTONDOWN:
 319     case WM_RBUTTONDOWN:
 320     case WM_MBUTTONDOWN:
 321         iF10Key = iMenuSysKey = 0;
 322         break;
 323
 324     case WM_NCLBUTTONDOWN:
 325         return NC_HandleNCLButtonDown( hwnd, wParam, lParam );
 326
 327     case WM_LBUTTONDBLCLK:
 328         return NC_HandleNCLButtonDblClk( hwnd, HTCLIENT, lParam );
 329
 330     case WM_NCLBUTTONDBLCLK:
 331         return NC_HandleNCLButtonDblClk( hwnd, wParam, lParam );
 332
 333     case WM_NCRBUTTONDOWN:
 334         /* in Windows, capture is taken when right-clicking on the caption bar */
 335         if (wParam==HTCAPTION)
 336         {
 337             SetCapture(hwnd);
 338         }
 339         break;
 340
 341     case WM_RBUTTONUP:
 342         {
 343             POINT pt;
 344
 345             if (hwnd == GetCapture())
 346                 /* release capture if we took it on WM_NCRBUTTONDOWN */
 347                 ReleaseCapture();
 348
 349             pt.x = (short)LOWORD(lParam);
 350             pt.y = (short)HIWORD(lParam);
 351             ClientToScreen(hwnd, &pt);
 352             SendMessageW( hwnd, WM_CONTEXTMENU, (WPARAM)hwnd, MAKELPARAM(pt.x, pt.y) );
 353         }
 354         break;
 355
 356     case WM_NCRBUTTONUP:
 357         /*
 358          * FIXME : we must NOT send WM_CONTEXTMENU on a WM_NCRBUTTONUP (checked
 359          * in Windows), but what _should_ we do? According to MSDN :
 360          * "If it is appropriate to do so, the system sends the WM_SYSCOMMAND
 361          * message to the window". When is it appropriate?
 362          */
 363         break;
 364
 365     case WM_CONTEXTMENU:
 366         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 367             SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 368         else
 369         {
 370             LONG hitcode;
 371             POINT pt;
 372             WND *wndPtr = WIN_GetPtr( hwnd );
 373             HMENU hMenu = wndPtr->hSysMenu;
 374             WIN_ReleasePtr( wndPtr );
 375             if (!hMenu) return 0;
 376             pt.x = (short)LOWORD(lParam);
 377             pt.y = (short)HIWORD(lParam);
 378             hitcode = NC_HandleNCHitTest(hwnd, pt);
 379
 380             /* Track system popup if click was in the caption area. */
 381             if (hitcode==HTCAPTION || hitcode==HTSYSMENU)
 382                TrackPopupMenu(GetSystemMenu(hwnd, FALSE),
 383                                TPM_LEFTBUTTON | TPM_RIGHTBUTTON,
 384                                pt.x, pt.y, 0, hwnd, NULL);
 385         }
 386         break;
 387
 388     case WM_POPUPSYSTEMMENU:
 389         {
 390             /* This is an undocumented message used by the windows taskbar to
 391                display the system menu of windows that belong to other processes. */
 392             HMENU menu = GetSystemMenu(hwnd, FALSE);
 393
 394             if (menu)
 395                 TrackPopupMenu(menu, TPM_LEFTBUTTON|TPM_RIGHTBUTTON,
 396                                LOWORD(lParam), HIWORD(lParam), 0, hwnd, NULL);
 397             return 0;
 398         }
 399
 400     case WM_NCACTIVATE:
 401         return NC_HandleNCActivate( hwnd, wParam, lParam );
 402
 403     case WM_NCDESTROY:
 404         {
 405             WND *wndPtr = WIN_GetPtr( hwnd );
 406             if (!wndPtr) return 0;
 407             HeapFree( GetProcessHeap(), 0, wndPtr->text );
 408             wndPtr->text = NULL;
 409             HeapFree( GetProcessHeap(), 0, wndPtr->pScroll );
 410             wndPtr->pScroll = NULL;
 411             WIN_ReleasePtr( wndPtr );
 412             return 0;
 413         }
 414
 415     case WM_PRINT:
 416         DEFWND_Print(hwnd, (HDC)wParam, lParam);
 417         return 0;
 418
 419     case WM_PAINTICON:
 420     case WM_PAINT:
 421         {
 422             PAINTSTRUCT ps;
 423             HDC hdc = BeginPaint( hwnd, &ps );
 424             if( hdc )
 425             {
 426               HICON hIcon;
 427               if (IsIconic(hwnd) && ((hIcon = (HICON)GetClassLongPtrW( hwnd, GCLP_HICON))) )
 428               {
 429                   RECT rc;
 430                   int x, y;
 431
 432                   GetClientRect( hwnd, &rc );
 433                   x = (rc.right - rc.left - GetSystemMetrics(SM_CXICON))/2;
 434                   y = (rc.bottom - rc.top - GetSystemMetrics(SM_CYICON))/2;
 435                   TRACE("Painting class icon: vis rect=(%s)\n",
 436                         wine_dbgstr_rect(&ps.rcPaint));
 437                   DrawIcon( hdc, x, y, hIcon );
 438               }
 439               EndPaint( hwnd, &ps );
 440             }
 441             return 0;
 442         }
 443
 444     case WM_SYNCPAINT:
 445         RedrawWindow ( hwnd, NULL, 0, RDW_ERASENOW | RDW_ERASE | RDW_ALLCHILDREN );
 446         return 0;
 447
 448     case WM_SETREDRAW:
 449         if (wParam) WIN_SetStyle( hwnd, WS_VISIBLE, 0 );
 450         else
 451         {
 452             RedrawWindow( hwnd, NULL, 0, RDW_ALLCHILDREN | RDW_VALIDATE );
 453             WIN_SetStyle( hwnd, 0, WS_VISIBLE );
 454         }
 455         return 0;
 456
 457     case WM_CLOSE:
 458         DestroyWindow( hwnd );
 459         return 0;
 460
 461     case WM_MOUSEACTIVATE:
 462         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 463         {
 464             LONG ret = SendMessageW( GetParent(hwnd), WM_MOUSEACTIVATE, wParam, lParam );
 465             if (ret) return ret;
 466         }
 467
 468         /* Caption clicks are handled by NC_HandleNCLButtonDown() */
 469         return MA_ACTIVATE;
 470
 471     case WM_ACTIVATE:
 472         /* The default action in Windows is to set the keyboard focus to
 473          * the window, if it's being activated and not minimized */
 474         if (LOWORD(wParam) != WA_INACTIVE) {
 475             if (!IsIconic(hwnd)) SetFocus(hwnd);
 476         }
 477         break;
 478
 479     case WM_MOUSEWHEEL:
 480         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 481             return SendMessageW( GetParent(hwnd), WM_MOUSEWHEEL, wParam, lParam );
 482         break;
 483
 484     case WM_ERASEBKGND:
 485     case WM_ICONERASEBKGND:
 486         {
 487             RECT rect;
 488             HDC hdc = (HDC)wParam;
 489             HBRUSH hbr = (HBRUSH)GetClassLongPtrW( hwnd, GCLP_HBRBACKGROUND );
 490             if (!hbr) return 0;
 491
 492             if (GetClassLongW( hwnd, GCL_STYLE ) & CS_PARENTDC)
 493             {
 494                 /* can't use GetClipBox with a parent DC or we fill the whole parent */
 495                 GetClientRect( hwnd, &rect );
 496                 DPtoLP( hdc, (LPPOINT)&rect, 2 );
 497             }
 498             else GetClipBox( hdc, &rect );
 499             FillRect( hdc, &rect, hbr );
 500             return 1;
 501         }
 502
 503     case WM_GETDLGCODE:
 504         return 0;
 505
 506     case WM_CTLCOLORMSGBOX:
 507     case WM_CTLCOLOREDIT:
 508     case WM_CTLCOLORLISTBOX:
 509     case WM_CTLCOLORBTN:
 510     case WM_CTLCOLORDLG:
 511     case WM_CTLCOLORSTATIC:
 512     case WM_CTLCOLORSCROLLBAR:
 513         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, msg - WM_CTLCOLORMSGBOX );
 514
 515     case WM_CTLCOLOR:
 516         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, HIWORD(lParam) );
 517
 518     case WM_SETCURSOR:
 519         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 520         {
 521             /* with the exception of the border around a resizable wnd,
 522              * give the parent first chance to set the cursor */
 523             if ((LOWORD(lParam) < HTSIZEFIRST) || (LOWORD(lParam) > HTSIZELAST))
 524             {
 525                 if (SendMessageW(GetParent(hwnd), WM_SETCURSOR, wParam, lParam)) return TRUE;
 526             }
 527         }
 528         NC_HandleSetCursor( hwnd, wParam, lParam );
 529         break;
 530
 531     case WM_SYSCOMMAND:
 532         return NC_HandleSysCommand( hwnd, wParam, lParam );
 533
 534     case WM_KEYDOWN:
 535         if(wParam == VK_F10) iF10Key = VK_F10;
 536         break;
 537
 538     case WM_SYSKEYDOWN:
 539         if( HIWORD(lParam) & KEYDATA_ALT )
 540         {
 541             /* if( HIWORD(lParam) & ~KEYDATA_PREVSTATE ) */
 542               if ( (wParam == VK_MENU || wParam == VK_LMENU
 543                     || wParam == VK_RMENU) && !iMenuSysKey )
 544                 iMenuSysKey = 1;
 545               else
 546                 iMenuSysKey = 0;
 547
 548             iF10Key = 0;
 549
 550             if( wParam == VK_F4 )       /* try to close the window */
 551             {
 552                 HWND top = GetAncestor( hwnd, GA_ROOT );
 553                 if (!(GetClassLongW( top, GCL_STYLE ) & CS_NOCLOSE))
 554                     PostMessageW( top, WM_SYSCOMMAND, SC_CLOSE, 0 );
 555             }
 556         }
 557         else if( wParam == VK_F10 )
 558             iF10Key = 1;
 559         else if( wParam == VK_ESCAPE && (GetKeyState(VK_SHIFT) & 0x8000))
 560             SendMessageW( hwnd, WM_SYSCOMMAND, SC_KEYMENU, ' ' );
 561         break;
 562
 563     case WM_KEYUP:
 564     case WM_SYSKEYUP:
 565         /* Press and release F10 or ALT */
 566         if (((wParam == VK_MENU || wParam == VK_LMENU || wParam == VK_RMENU)
 567              && iMenuSysKey) || ((wParam == VK_F10) && iF10Key))
 568               SendMessageW( GetAncestor( hwnd, GA_ROOT ), WM_SYSCOMMAND, SC_KEYMENU, 0L );
 569         iMenuSysKey = iF10Key = 0;
 570         break;
 571
 572     case WM_SYSCHAR:
 573     {
 574         iMenuSysKey = 0;
 575         if (wParam == '\r' && IsIconic(hwnd))
 576         {
 577             PostMessageW( hwnd, WM_SYSCOMMAND, SC_RESTORE, 0L );
 578             break;
 579         }
 580         if ((HIWORD(lParam) & KEYDATA_ALT) && wParam)
 581         {
 582             if (wParam == '\t' || wParam == '\x1b') break;
 583             if (wParam == ' ' && (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD))
 584                 SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 585             else
 586                 SendMessageW( hwnd, WM_SYSCOMMAND, SC_KEYMENU, wParam );
 587         }
 588         else /* check for Ctrl-Esc */
 589             if (wParam != '\x1b') MessageBeep(0);
 590         break;
 591     }
 592
 593     case WM_SHOWWINDOW:
 594         {
 595             LONG style = GetWindowLongW( hwnd, GWL_STYLE );
 596             WND *pWnd;
 597             if (!lParam) return 0; /* sent from ShowWindow */
 598             if ((style & WS_VISIBLE) && wParam) return 0;
 599             if (!(style & WS_VISIBLE) && !wParam) return 0;
 600             if (!GetWindow( hwnd, GW_OWNER )) return 0;
 601             if (!(pWnd = WIN_GetPtr( hwnd ))) return 0;
 602             if (pWnd == WND_OTHER_PROCESS) return 0;
 603             if (wParam)
 604             {
 605                 if (!(pWnd->flags & WIN_NEEDS_SHOW_OWNEDPOPUP))
 606                 {
 607                     WIN_ReleasePtr( pWnd );
 608                     return 0;
 609                 }
 610                 pWnd->flags &= ~WIN_NEEDS_SHOW_OWNEDPOPUP;
 611             }
 612             else pWnd->flags |= WIN_NEEDS_SHOW_OWNEDPOPUP;
 613             WIN_ReleasePtr( pWnd );
 614             ShowWindow( hwnd, wParam ? SW_SHOWNOACTIVATE : SW_HIDE );
 615             break;
 616         }
 617
 618     case WM_CANCELMODE:
 619         iMenuSysKey = 0;
 620         MENU_EndMenu( hwnd );
 621         if (GetCapture() == hwnd) ReleaseCapture();
 622         break;
 623
 624     case WM_VKEYTOITEM:
 625     case WM_CHARTOITEM:
 626         return -1;
 627
 628     case WM_DROPOBJECT:
 629         return DRAG_FILE;
 630
 631     case WM_QUERYDROPOBJECT:
 632         return (GetWindowLongA( hwnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES) != 0;
 633
 634     case WM_QUERYDRAGICON:
 635         {
 636             UINT len;
 637
 638             HICON hIcon = (HICON)GetClassLongPtrW( hwnd, GCLP_HICON );
 639             HINSTANCE instance = (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE );
 640             if (hIcon) return (LRESULT)hIcon;
 641             for(len=1; len<64; len++)
 642                 if((hIcon = LoadIconW(instance, MAKEINTRESOURCEW(len))))
 643                     return (LRESULT)hIcon;
 644             return (LRESULT)LoadIconW(0, (LPWSTR)IDI_APPLICATION);
 645         }
 646         break;
 647
 648     case WM_ISACTIVEICON:
 649         {
 650             WND *wndPtr = WIN_GetPtr( hwnd );
 651             BOOL ret = (wndPtr->flags & WIN_NCACTIVATED) != 0;
 652             WIN_ReleasePtr( wndPtr );
 653             return ret;
 654         }
 655
 656     case WM_NOTIFYFORMAT:
 657       if (IsWindowUnicode(hwnd)) return NFR_UNICODE;
 658       else return NFR_ANSI;
 659
 660     case WM_QUERYOPEN:
 661     case WM_QUERYENDSESSION:
 662         return 1;
 663
 664     case WM_SETICON:
 665         {
 666             HICON ret;
 667             WND *wndPtr = WIN_GetPtr( hwnd );
 668
 669             switch(wParam)
 670             {
 671             case ICON_SMALL:
 672                 ret = wndPtr->hIconSmall;
 673                 wndPtr->hIconSmall = (HICON)lParam;
 674                 break;
 675             case ICON_BIG:
 676                 ret = wndPtr->hIcon;
 677                 wndPtr->hIcon = (HICON)lParam;
 678                 break;
 679             default:
 680                 ret = 0;
 681                 break;
 682             }
 683             WIN_ReleasePtr( wndPtr );
 684
 685             USER_Driver->pSetWindowIcon( hwnd, wParam, (HICON)lParam );
 686
 687             if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
 688                 NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 689
 690             return (LRESULT)ret;
 691         }
 692
 693     case WM_GETICON:
 694         {
 695             HICON ret;
 696             WND *wndPtr = WIN_GetPtr( hwnd );
 697
 698             switch(wParam)
 699             {
 700             case ICON_SMALL:
 701                 ret = wndPtr->hIconSmall;
 702                 break;
 703             case ICON_BIG:
 704                 ret = wndPtr->hIcon;
 705                 break;
 706             case ICON_SMALL2:
 707                 ret = wndPtr->hIconSmall;
 708                 if (!ret) ret = (HICON)GetClassLongPtrW( hwnd, GCLP_HICONSM );
 709                 /* FIXME: should have a default here if class icon is null */
 710                 break;
 711             default:
 712                 ret = 0;
 713                 break;
 714             }
 715             WIN_ReleasePtr( wndPtr );
 716             return (LRESULT)ret;
 717         }
 718
 719     case WM_HELP:
 720         SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 721         break;
 722
 723     case WM_APPCOMMAND:
 724         {
 725             HWND parent = GetParent(hwnd);
 726             if(!parent)
 727                 HOOK_CallHooks(WH_SHELL, HSHELL_APPCOMMAND, wParam, lParam, TRUE);
 728             else
 729                 SendMessageW( parent, msg, wParam, lParam );
 730             break;
 731         }
 732     case WM_KEYF1:
 733         {
 734             HELPINFO hi;
 735
 736             hi.cbSize = sizeof(HELPINFO);
 737             GetCursorPos( &hi.MousePos );
 738             if (MENU_IsMenuActive())
 739             {
 740                 hi.iContextType = HELPINFO_MENUITEM;
 741                 hi.hItemHandle = MENU_IsMenuActive();
 742                 hi.iCtrlId = MenuItemFromPoint( hwnd, hi.hItemHandle, hi.MousePos );
 743                 hi.dwContextId = GetMenuContextHelpId( hi.hItemHandle );
 744             }
 745             else
 746             {
 747                 hi.iContextType = HELPINFO_WINDOW;
 748                 hi.hItemHandle = hwnd;
 749                 hi.iCtrlId = GetWindowLongPtrA( hwnd, GWLP_ID );
 750                 hi.dwContextId = GetWindowContextHelpId( hwnd );
 751             }
 752             SendMessageW( hwnd, WM_HELP, 0, (LPARAM)&hi );
 753             break;
 754         }
 755
 756     case WM_INPUTLANGCHANGEREQUEST:
 757         ActivateKeyboardLayout( (HKL)lParam, 0 );
 758         break;
 759
 760     case WM_INPUTLANGCHANGE:
 761         {
 762             int count = 0;
 763             HWND *win_array = WIN_ListChildren( hwnd );
 764
 765             if (!win_array)
 766                 break;
 767             while (win_array[count])
 768                 SendMessageW( win_array[count++], WM_INPUTLANGCHANGE, wParam, lParam);
 769             HeapFree(GetProcessHeap(),0,win_array);
 770             break;
 771         }
 772
 773     }
 774
 775     return 0;
 776 }
 777
 778 static LPARAM DEFWND_GetTextA( WND *wndPtr, LPSTR dest, WPARAM wParam )
 779 {
 780     LPARAM result = 0;
 781
 782     __TRY
 783     {
 784         if (wndPtr->text)
 785         {
 786             if (!WideCharToMultiByte( CP_ACP, 0, wndPtr->text, -1,
 787                                       dest, wParam, NULL, NULL )) dest[wParam-1] = 0;
 788             result = strlen( dest );
 789         }
 790         else dest[0] = '\0';
 791     }
 792     __EXCEPT_PAGE_FAULT
 793     {
 794         return 0;
 795     }
 796     __ENDTRY
 797     return result;
 798 }
 799
 800 /***********************************************************************
 801  *              DefWindowProcA (USER32.@)
 802  *
 803  * See DefWindowProcW.
 804  */
 805 LRESULT WINAPI DefWindowProcA( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
 806 {
 807     LRESULT result = 0;
 808     HWND full_handle;
 809
 810     if (!(full_handle = WIN_IsCurrentProcess( hwnd )))
 811     {
 812         if (!IsWindow( hwnd )) return 0;
 813         ERR( "called for other process window %p\n", hwnd );
 814         return 0;
 815     }
 816     hwnd = full_handle;
 817
 818     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
 819
 820     switch(msg)
 821     {
 822     case WM_NCCREATE:
 823         if (lParam)
 824         {
 825             CREATESTRUCTA *cs = (CREATESTRUCTA *)lParam;
 826             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 827              * may have child window IDs instead of window name */
 828             if (HIWORD(cs->lpszName))
 829                 DEFWND_SetTextA( hwnd, cs->lpszName );
 830             result = 1;
 831         }
 832         break;
 833
 834     case WM_GETTEXTLENGTH:
 835         {
 836             WND *wndPtr = WIN_GetPtr( hwnd );
 837             if (wndPtr && wndPtr->text)
 838                 result = WideCharToMultiByte( CP_ACP, 0, wndPtr->text, strlenW(wndPtr->text),
 839                                               NULL, 0, NULL, NULL );
 840             WIN_ReleasePtr( wndPtr );
 841         }
 842         break;
 843
 844     case WM_GETTEXT:
 845         if (wParam)
 846         {
 847             LPSTR dest = (LPSTR)lParam;
 848             WND *wndPtr = WIN_GetPtr( hwnd );
 849
 850             if (!wndPtr) break;
 851             result = DEFWND_GetTextA( wndPtr, dest, wParam );
 852
 853             WIN_ReleasePtr( wndPtr );
 854         }
 855         break;
 856
 857     case WM_SETTEXT:
 858         DEFWND_SetTextA( hwnd, (LPCSTR)lParam );
 859         if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
 860             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 861         result = 1; /* success. FIXME: check text length */
 862         break;
 863
 864     case WM_IME_CHAR:
 865         if (HIBYTE(wParam)) PostMessageA( hwnd, WM_CHAR, HIBYTE(wParam), lParam );
 866         PostMessageA( hwnd, WM_CHAR, LOBYTE(wParam), lParam );
 867         break;
 868
 869     case WM_IME_KEYDOWN:
 870         result = PostMessageA( hwnd, WM_KEYDOWN, wParam, lParam );
 871         break;
 872
 873     case WM_IME_KEYUP:
 874         result = PostMessageA( hwnd, WM_KEYUP, wParam, lParam );
 875         break;
 876
 877     case WM_IME_STARTCOMPOSITION:
 878     case WM_IME_COMPOSITION:
 879     case WM_IME_ENDCOMPOSITION:
 880     case WM_IME_SELECT:
 881     case WM_IME_NOTIFY:
 882         {
 883             HWND hwndIME;
 884
 885             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 886             if (hwndIME)
 887                 result = SendMessageA( hwndIME, msg, wParam, lParam );
 888         }
 889         break;
 890     case WM_IME_SETCONTEXT:
 891         {
 892             HWND hwndIME;
 893
 894             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 895             if (hwndIME)
 896                 result = DEFWND_ImmIsUIMessageA( hwndIME, msg, wParam, lParam );
 897         }
 898         break;
 899
 900     case WM_SYSCHAR:
 901     {
 902         CHAR ch = LOWORD(wParam);
 903         WCHAR wch;
 904         MultiByteToWideChar(CP_ACP, 0, &ch, 1, &wch, 1);
 905         wParam = MAKEWPARAM( wch, HIWORD(wParam) );
 906     }
 907     /* fall through */
 908     default:
 909         result = DEFWND_DefWinProc( hwnd, msg, wParam, lParam );
 910         break;
 911     }
 912
 913     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
 914     return result;
 915 }
 916
 917
 918 static LPARAM DEFWND_GetTextW( WND *wndPtr, LPWSTR dest, WPARAM wParam )
 919 {
 920     LPARAM result = 0;
 921
 922     __TRY
 923     {
 924         if (wndPtr->text)
 925         {
 926             lstrcpynW( dest, wndPtr->text, wParam );
 927             result = strlenW( dest );
 928         }
 929         else dest[0] = '\0';
 930     }
 931     __EXCEPT_PAGE_FAULT
 932     {
 933         return 0;
 934     }
 935     __ENDTRY
 936
 937     return result;
 938 }
 939
 940 /***********************************************************************
 941  *              DefWindowProcW (USER32.@) Calls default window message handler
 942  *
 943  * Calls default window procedure for messages not processed
 944  *  by application.
 945  *
 946  *  RETURNS
 947  *     Return value is dependent upon the message.
 948 */
 949 LRESULT WINAPI DefWindowProcW(
 950     HWND hwnd,      /* [in] window procedure receiving message */
 951     UINT msg,       /* [in] message identifier */
 952     WPARAM wParam,  /* [in] first message parameter */
 953     LPARAM lParam )   /* [in] second message parameter */
 954 {
 955     LRESULT result = 0;
 956     HWND full_handle;
 957
 958     if (!(full_handle = WIN_IsCurrentProcess( hwnd )))
 959     {
 960         if (!IsWindow( hwnd )) return 0;
 961         ERR( "called for other process window %p\n", hwnd );
 962         return 0;
 963     }
 964     hwnd = full_handle;
 965     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
 966
 967     switch(msg)
 968     {
 969     case WM_NCCREATE:
 970         if (lParam)
 971         {
 972             CREATESTRUCTW *cs = (CREATESTRUCTW *)lParam;
 973             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 974              * may have child window IDs instead of window name */
 975             if (HIWORD(cs->lpszName))
 976                 DEFWND_SetTextW( hwnd, cs->lpszName );
 977             result = 1;
 978         }
 979         break;
 980
 981     case WM_GETTEXTLENGTH:
 982         {
 983             WND *wndPtr = WIN_GetPtr( hwnd );
 984             if (wndPtr && wndPtr->text) result = (LRESULT)strlenW(wndPtr->text);
 985             WIN_ReleasePtr( wndPtr );
 986         }
 987         break;
 988
 989     case WM_GETTEXT:
 990         if (wParam)
 991         {
 992             LPWSTR dest = (LPWSTR)lParam;
 993             WND *wndPtr = WIN_GetPtr( hwnd );
 994
 995             if (!wndPtr) break;
 996             result = DEFWND_GetTextW( wndPtr, dest, wParam );
 997             WIN_ReleasePtr( wndPtr );
 998         }
 999         break;
1000
1001     case WM_SETTEXT:
1002         DEFWND_SetTextW( hwnd, (LPCWSTR)lParam );
1003         if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
1004             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
1005         result = 1; /* success. FIXME: check text length */
1006         break;
1007
1008     case WM_IME_CHAR:
1009         PostMessageW( hwnd, WM_CHAR, wParam, lParam );
1010         break;
1011
1012     case WM_IME_KEYDOWN:
1013         result = PostMessageW( hwnd, WM_KEYDOWN, wParam, lParam );
1014         break;
1015
1016     case WM_IME_KEYUP:
1017         result = PostMessageW( hwnd, WM_KEYUP, wParam, lParam );
1018         break;
1019
1020     case WM_IME_SETCONTEXT:
1021         {
1022             HWND hwndIME;
1023
1024             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
1025             if (hwndIME)
1026                 result = DEFWND_ImmIsUIMessageW( hwndIME, msg, wParam, lParam );
1027         }
1028         break;
1029
1030     case WM_IME_STARTCOMPOSITION:
1031     case WM_IME_COMPOSITION:
1032     case WM_IME_ENDCOMPOSITION:
1033     case WM_IME_SELECT:
1034     case WM_IME_NOTIFY:
1035         {
1036             HWND hwndIME;
1037
1038             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
1039             if (hwndIME)
1040                 result = SendMessageW( hwndIME, msg, wParam, lParam );
1041         }
1042         break;
1043
1044     default:
1045         result = DEFWND_DefWinProc( hwnd, msg, wParam, lParam );
1046         break;
1047     }
1048     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
1049     return result;
1050 }