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 = 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 = 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_NCACTIVATE:
 389         return NC_HandleNCActivate( hwnd, wParam );
 390
 391     case WM_NCDESTROY:
 392         {
 393             WND *wndPtr = WIN_GetPtr( hwnd );
 394             if (!wndPtr) return 0;
 395             HeapFree( GetProcessHeap(), 0, wndPtr->text );
 396             wndPtr->text = NULL;
 397             HeapFree( GetProcessHeap(), 0, wndPtr->pVScroll );
 398             HeapFree( GetProcessHeap(), 0, wndPtr->pHScroll );
 399             wndPtr->pVScroll = wndPtr->pHScroll = NULL;
 400             WIN_ReleasePtr( wndPtr );
 401             return 0;
 402         }
 403
 404     case WM_PRINT:
 405         DEFWND_Print(hwnd, (HDC)wParam, lParam);
 406         return 0;
 407
 408     case WM_PAINTICON:
 409     case WM_PAINT:
 410         {
 411             PAINTSTRUCT ps;
 412             HDC hdc = BeginPaint( hwnd, &ps );
 413             if( hdc )
 414             {
 415               HICON hIcon;
 416               if (IsIconic(hwnd) && ((hIcon = (HICON)GetClassLongPtrW( hwnd, GCLP_HICON))) )
 417               {
 418                   RECT rc;
 419                   int x, y;
 420
 421                   GetClientRect( hwnd, &rc );
 422                   x = (rc.right - rc.left - GetSystemMetrics(SM_CXICON))/2;
 423                   y = (rc.bottom - rc.top - GetSystemMetrics(SM_CYICON))/2;
 424                   TRACE("Painting class icon: vis rect=(%d,%d - %d,%d)\n",
 425                         ps.rcPaint.left, ps.rcPaint.top, ps.rcPaint.right, ps.rcPaint.bottom );
 426                   DrawIcon( hdc, x, y, hIcon );
 427               }
 428               EndPaint( hwnd, &ps );
 429             }
 430             return 0;
 431         }
 432
 433     case WM_SYNCPAINT:
 434         RedrawWindow ( hwnd, NULL, 0, RDW_ERASENOW | RDW_ERASE | RDW_ALLCHILDREN );
 435         return 0;
 436
 437     case WM_SETREDRAW:
 438         if (wParam) WIN_SetStyle( hwnd, WS_VISIBLE, 0 );
 439         else
 440         {
 441             RedrawWindow( hwnd, NULL, 0, RDW_ALLCHILDREN | RDW_VALIDATE );
 442             WIN_SetStyle( hwnd, 0, WS_VISIBLE );
 443         }
 444         return 0;
 445
 446     case WM_CLOSE:
 447         DestroyWindow( hwnd );
 448         return 0;
 449
 450     case WM_MOUSEACTIVATE:
 451         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 452         {
 453             LONG ret = SendMessageW( GetParent(hwnd), WM_MOUSEACTIVATE, wParam, lParam );
 454             if (ret) return ret;
 455         }
 456
 457         /* Caption clicks are handled by NC_HandleNCLButtonDown() */
 458         return MA_ACTIVATE;
 459
 460     case WM_ACTIVATE:
 461         /* The default action in Windows is to set the keyboard focus to
 462          * the window, if it's being activated and not minimized */
 463         if (LOWORD(wParam) != WA_INACTIVE) {
 464             if (!IsIconic(hwnd)) SetFocus(hwnd);
 465         }
 466         break;
 467
 468     case WM_MOUSEWHEEL:
 469         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 470             return SendMessageW( GetParent(hwnd), WM_MOUSEWHEEL, wParam, lParam );
 471         break;
 472
 473     case WM_ERASEBKGND:
 474     case WM_ICONERASEBKGND:
 475         {
 476             RECT rect;
 477             HDC hdc = (HDC)wParam;
 478             HBRUSH hbr = (HBRUSH)GetClassLongPtrW( hwnd, GCLP_HBRBACKGROUND );
 479             if (!hbr) return 0;
 480
 481             if (GetClassLongW( hwnd, GCL_STYLE ) & CS_PARENTDC)
 482             {
 483                 /* can't use GetClipBox with a parent DC or we fill the whole parent */
 484                 GetClientRect( hwnd, &rect );
 485                 DPtoLP( hdc, (LPPOINT)&rect, 2 );
 486             }
 487             else GetClipBox( hdc, &rect );
 488             FillRect( hdc, &rect, hbr );
 489             return 1;
 490         }
 491
 492     case WM_GETDLGCODE:
 493         return 0;
 494
 495     case WM_CTLCOLORMSGBOX:
 496     case WM_CTLCOLOREDIT:
 497     case WM_CTLCOLORLISTBOX:
 498     case WM_CTLCOLORBTN:
 499     case WM_CTLCOLORDLG:
 500     case WM_CTLCOLORSTATIC:
 501     case WM_CTLCOLORSCROLLBAR:
 502         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, msg - WM_CTLCOLORMSGBOX );
 503
 504     case WM_CTLCOLOR:
 505         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, HIWORD(lParam) );
 506
 507     case WM_SETCURSOR:
 508         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 509         {
 510             /* with the exception of the border around a resizable wnd,
 511              * give the parent first chance to set the cursor */
 512             if ((LOWORD(lParam) < HTSIZEFIRST) || (LOWORD(lParam) > HTSIZELAST))
 513             {
 514                 if (SendMessageW(GetParent(hwnd), WM_SETCURSOR, wParam, lParam)) return TRUE;
 515             }
 516         }
 517         NC_HandleSetCursor( hwnd, wParam, lParam );
 518         break;
 519
 520     case WM_SYSCOMMAND:
 521         return NC_HandleSysCommand( hwnd, wParam, lParam );
 522
 523     case WM_KEYDOWN:
 524         if(wParam == VK_F10) iF10Key = VK_F10;
 525         break;
 526
 527     case WM_SYSKEYDOWN:
 528         if( HIWORD(lParam) & KEYDATA_ALT )
 529         {
 530             /* if( HIWORD(lParam) & ~KEYDATA_PREVSTATE ) */
 531               if ( (wParam == VK_MENU || wParam == VK_LMENU
 532                     || wParam == VK_RMENU) && !iMenuSysKey )
 533                 iMenuSysKey = 1;
 534               else
 535                 iMenuSysKey = 0;
 536
 537             iF10Key = 0;
 538
 539             if( wParam == VK_F4 )       /* try to close the window */
 540             {
 541                 HWND top = GetAncestor( hwnd, GA_ROOT );
 542                 if (!(GetClassLongW( top, GCL_STYLE ) & CS_NOCLOSE))
 543                     PostMessageW( top, WM_SYSCOMMAND, SC_CLOSE, 0 );
 544             }
 545         }
 546         else if( wParam == VK_F10 )
 547             iF10Key = 1;
 548         else if( wParam == VK_ESCAPE && (GetKeyState(VK_SHIFT) & 0x8000))
 549             SendMessageW( hwnd, WM_SYSCOMMAND, SC_KEYMENU, ' ' );
 550         break;
 551
 552     case WM_KEYUP:
 553     case WM_SYSKEYUP:
 554         /* Press and release F10 or ALT */
 555         if (((wParam == VK_MENU || wParam == VK_LMENU || wParam == VK_RMENU)
 556              && iMenuSysKey) || ((wParam == VK_F10) && iF10Key))
 557               SendMessageW( GetAncestor( hwnd, GA_ROOT ), WM_SYSCOMMAND, SC_KEYMENU, 0L );
 558         iMenuSysKey = iF10Key = 0;
 559         break;
 560
 561     case WM_SYSCHAR:
 562     {
 563         iMenuSysKey = 0;
 564         if (wParam == '\r' && IsIconic(hwnd))
 565         {
 566             PostMessageW( hwnd, WM_SYSCOMMAND, SC_RESTORE, 0L );
 567             break;
 568         }
 569         if ((HIWORD(lParam) & KEYDATA_ALT) && wParam)
 570         {
 571             if (wParam == '\t' || wParam == '\x1b') break;
 572             if (wParam == ' ' && (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD))
 573                 SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 574             else
 575                 SendMessageW( hwnd, WM_SYSCOMMAND, SC_KEYMENU, wParam );
 576         }
 577         else /* check for Ctrl-Esc */
 578             if (wParam != '\x1b') MessageBeep(0);
 579         break;
 580     }
 581
 582     case WM_SHOWWINDOW:
 583         {
 584             LONG style = GetWindowLongW( hwnd, GWL_STYLE );
 585             WND *pWnd;
 586             if (!lParam) return 0; /* sent from ShowWindow */
 587             if ((style & WS_VISIBLE) && wParam) return 0;
 588             if (!(style & WS_VISIBLE) && !wParam) return 0;
 589             if (!GetWindow( hwnd, GW_OWNER )) return 0;
 590             if (!(pWnd = WIN_GetPtr( hwnd ))) return 0;
 591             if (pWnd == WND_OTHER_PROCESS) return 0;
 592             if (wParam)
 593             {
 594                 if (!(pWnd->flags & WIN_NEEDS_SHOW_OWNEDPOPUP))
 595                 {
 596                     WIN_ReleasePtr( pWnd );
 597                     return 0;
 598                 }
 599                 pWnd->flags &= ~WIN_NEEDS_SHOW_OWNEDPOPUP;
 600             }
 601             else pWnd->flags |= WIN_NEEDS_SHOW_OWNEDPOPUP;
 602             WIN_ReleasePtr( pWnd );
 603             ShowWindow( hwnd, wParam ? SW_SHOWNOACTIVATE : SW_HIDE );
 604             break;
 605         }
 606
 607     case WM_CANCELMODE:
 608         iMenuSysKey = 0;
 609         if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) EndMenu();
 610         if (GetCapture() == hwnd) ReleaseCapture();
 611         break;
 612
 613     case WM_VKEYTOITEM:
 614     case WM_CHARTOITEM:
 615         return -1;
 616
 617     case WM_DROPOBJECT:
 618         return DRAG_FILE;
 619
 620     case WM_QUERYDROPOBJECT:
 621         return (GetWindowLongA( hwnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES) != 0;
 622
 623     case WM_QUERYDRAGICON:
 624         {
 625             UINT len;
 626
 627             HICON hIcon = (HICON)GetClassLongPtrW( hwnd, GCLP_HICON );
 628             HINSTANCE instance = (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE );
 629             if (hIcon) return (LRESULT)hIcon;
 630             for(len=1; len<64; len++)
 631                 if((hIcon = LoadIconW(instance, MAKEINTRESOURCEW(len))))
 632                     return (LRESULT)hIcon;
 633             return (LRESULT)LoadIconW(0, (LPWSTR)IDI_APPLICATION);
 634         }
 635         break;
 636
 637     case WM_ISACTIVEICON:
 638         {
 639             WND *wndPtr = WIN_GetPtr( hwnd );
 640             BOOL ret = (wndPtr->flags & WIN_NCACTIVATED) != 0;
 641             WIN_ReleasePtr( wndPtr );
 642             return ret;
 643         }
 644
 645     case WM_NOTIFYFORMAT:
 646       if (IsWindowUnicode(hwnd)) return NFR_UNICODE;
 647       else return NFR_ANSI;
 648
 649     case WM_QUERYOPEN:
 650     case WM_QUERYENDSESSION:
 651         return 1;
 652
 653     case WM_ENDSESSION:
 654         if (wParam)
 655             PostQuitMessage(0);
 656         return 0;
 657
 658     case WM_SETICON:
 659         {
 660             HICON ret;
 661             WND *wndPtr = WIN_GetPtr( hwnd );
 662
 663             switch(wParam)
 664             {
 665             case ICON_SMALL:
 666                 ret = wndPtr->hIconSmall;
 667                 wndPtr->hIconSmall = (HICON)lParam;
 668                 break;
 669             case ICON_BIG:
 670                 ret = wndPtr->hIcon;
 671                 wndPtr->hIcon = (HICON)lParam;
 672                 break;
 673             default:
 674                 ret = 0;
 675                 break;
 676             }
 677             WIN_ReleasePtr( wndPtr );
 678
 679             USER_Driver->pSetWindowIcon( hwnd, wParam, (HICON)lParam );
 680
 681             if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
 682                 NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 683
 684             return (LRESULT)ret;
 685         }
 686
 687     case WM_GETICON:
 688         {
 689             HICON ret;
 690             WND *wndPtr = WIN_GetPtr( hwnd );
 691
 692             switch(wParam)
 693             {
 694             case ICON_SMALL:
 695                 ret = wndPtr->hIconSmall;
 696                 break;
 697             case ICON_BIG:
 698                 ret = wndPtr->hIcon;
 699                 break;
 700             case ICON_SMALL2:
 701                 ret = wndPtr->hIconSmall;
 702                 if (!ret) ret = (HICON)GetClassLongPtrW( hwnd, GCLP_HICONSM );
 703                 /* FIXME: should have a default here if class icon is null */
 704                 break;
 705             default:
 706                 ret = 0;
 707                 break;
 708             }
 709             WIN_ReleasePtr( wndPtr );
 710             return (LRESULT)ret;
 711         }
 712
 713     case WM_HELP:
 714         SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 715         break;
 716
 717     case WM_APPCOMMAND:
 718         {
 719             HWND parent = GetParent(hwnd);
 720             if(!parent)
 721                 HOOK_CallHooks(WH_SHELL, HSHELL_APPCOMMAND, wParam, lParam, TRUE);
 722             else
 723                 SendMessageW( parent, msg, wParam, lParam );
 724             break;
 725         }
 726     }
 727
 728     return 0;
 729 }
 730
 731 static LPARAM DEFWND_GetTextA( WND *wndPtr, LPSTR dest, WPARAM wParam )
 732 {
 733     LPARAM result = 0;
 734
 735     __TRY
 736     {
 737         if (wndPtr->text)
 738         {
 739             if (!WideCharToMultiByte( CP_ACP, 0, wndPtr->text, -1,
 740                                       dest, wParam, NULL, NULL )) dest[wParam-1] = 0;
 741             result = strlen( dest );
 742         }
 743         else dest[0] = '\0';
 744     }
 745     __EXCEPT_PAGE_FAULT
 746     {
 747         return 0;
 748     }
 749     __ENDTRY
 750     return result;
 751 }
 752
 753 /***********************************************************************
 754  *              DefWindowProcA (USER32.@)
 755  *
 756  * See DefWindowProcW.
 757  */
 758 LRESULT WINAPI DefWindowProcA( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
 759 {
 760     LRESULT result = 0;
 761     HWND full_handle;
 762
 763     if (!(full_handle = WIN_IsCurrentProcess( hwnd )))
 764     {
 765         if (!IsWindow( hwnd )) return 0;
 766         ERR( "called for other process window %p\n", hwnd );
 767         return 0;
 768     }
 769     hwnd = full_handle;
 770
 771     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
 772
 773     switch(msg)
 774     {
 775     case WM_NCCREATE:
 776         if (lParam)
 777         {
 778             CREATESTRUCTA *cs = (CREATESTRUCTA *)lParam;
 779             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 780              * may have child window IDs instead of window name */
 781             if (HIWORD(cs->lpszName))
 782                 DEFWND_SetTextA( hwnd, cs->lpszName );
 783             result = 1;
 784         }
 785         break;
 786
 787     case WM_GETTEXTLENGTH:
 788         {
 789             WND *wndPtr = WIN_GetPtr( hwnd );
 790             if (wndPtr && wndPtr->text)
 791                 result = WideCharToMultiByte( CP_ACP, 0, wndPtr->text, strlenW(wndPtr->text),
 792                                               NULL, 0, NULL, NULL );
 793             WIN_ReleasePtr( wndPtr );
 794         }
 795         break;
 796
 797     case WM_GETTEXT:
 798         if (wParam)
 799         {
 800             LPSTR dest = (LPSTR)lParam;
 801             WND *wndPtr = WIN_GetPtr( hwnd );
 802
 803             if (!wndPtr) break;
 804             result = DEFWND_GetTextA( wndPtr, dest, wParam );
 805
 806             WIN_ReleasePtr( wndPtr );
 807         }
 808         break;
 809
 810     case WM_SETTEXT:
 811         DEFWND_SetTextA( hwnd, (LPCSTR)lParam );
 812         if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
 813             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 814         result = 1; /* success. FIXME: check text length */
 815         break;
 816
 817     case WM_IME_CHAR:
 818         if (HIBYTE(wParam)) PostMessageA( hwnd, WM_CHAR, HIBYTE(wParam), lParam );
 819         PostMessageA( hwnd, WM_CHAR, LOBYTE(wParam), lParam );
 820         break;
 821
 822     case WM_IME_KEYDOWN:
 823         result = SendMessageA( hwnd, WM_KEYDOWN, wParam, lParam );
 824         break;
 825
 826     case WM_IME_KEYUP:
 827         result = SendMessageA( hwnd, WM_KEYUP, wParam, lParam );
 828         break;
 829
 830     case WM_IME_STARTCOMPOSITION:
 831     case WM_IME_COMPOSITION:
 832     case WM_IME_ENDCOMPOSITION:
 833     case WM_IME_SELECT:
 834         {
 835             HWND hwndIME;
 836
 837             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 838             if (hwndIME)
 839                 result = SendMessageA( hwndIME, msg, wParam, lParam );
 840         }
 841         break;
 842     case WM_IME_SETCONTEXT:
 843         {
 844             HWND hwndIME;
 845
 846             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 847             if (hwndIME)
 848                 result = DEFWND_ImmIsUIMessageA( hwndIME, msg, wParam, lParam );
 849         }
 850         break;
 851
 852     case WM_INPUTLANGCHANGEREQUEST:
 853         /* notify about the switch only if it's really our current layout */
 854         if ((HKL)lParam == GetKeyboardLayout(0))
 855             result = SendMessageA( hwnd, WM_INPUTLANGCHANGE, wParam, lParam );
 856         else
 857             result = 0;
 858         break;
 859
 860     case WM_SYSCHAR:
 861     {
 862         CHAR ch = LOWORD(wParam);
 863         WCHAR wch;
 864         MultiByteToWideChar(CP_ACP, 0, &ch, 1, &wch, 1);
 865         wParam = MAKEWPARAM( wch, HIWORD(wParam) );
 866     }
 867     /* fall through */
 868     default:
 869         result = DEFWND_DefWinProc( hwnd, msg, wParam, lParam );
 870         break;
 871     }
 872
 873     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
 874     return result;
 875 }
 876
 877
 878 static LPARAM DEFWND_GetTextW( WND *wndPtr, LPWSTR dest, WPARAM wParam )
 879 {
 880     LPARAM result = 0;
 881
 882     __TRY
 883     {
 884         if (wndPtr->text)
 885         {
 886             lstrcpynW( dest, wndPtr->text, wParam );
 887             result = strlenW( dest );
 888         }
 889         else dest[0] = '\0';
 890     }
 891     __EXCEPT_PAGE_FAULT
 892     {
 893         return 0;
 894     }
 895     __ENDTRY
 896
 897     return result;
 898 }
 899
 900 /***********************************************************************
 901  *              DefWindowProcW (USER32.@) Calls default window message handler
 902  *
 903  * Calls default window procedure for messages not processed
 904  *  by application.
 905  *
 906  *  RETURNS
 907  *     Return value is dependent upon the message.
 908 */
 909 LRESULT WINAPI DefWindowProcW(
 910     HWND hwnd,      /* [in] window procedure receiving message */
 911     UINT msg,       /* [in] message identifier */
 912     WPARAM wParam,  /* [in] first message parameter */
 913     LPARAM lParam )   /* [in] second message parameter */
 914 {
 915     LRESULT result = 0;
 916     HWND full_handle;
 917
 918     if (!(full_handle = WIN_IsCurrentProcess( hwnd )))
 919     {
 920         if (!IsWindow( hwnd )) return 0;
 921         ERR( "called for other process window %p\n", hwnd );
 922         return 0;
 923     }
 924     hwnd = full_handle;
 925     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
 926
 927     switch(msg)
 928     {
 929     case WM_NCCREATE:
 930         if (lParam)
 931         {
 932             CREATESTRUCTW *cs = (CREATESTRUCTW *)lParam;
 933             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 934              * may have child window IDs instead of window name */
 935             if (HIWORD(cs->lpszName))
 936                 DEFWND_SetTextW( hwnd, cs->lpszName );
 937             result = 1;
 938         }
 939         break;
 940
 941     case WM_GETTEXTLENGTH:
 942         {
 943             WND *wndPtr = WIN_GetPtr( hwnd );
 944             if (wndPtr && wndPtr->text) result = (LRESULT)strlenW(wndPtr->text);
 945             WIN_ReleasePtr( wndPtr );
 946         }
 947         break;
 948
 949     case WM_GETTEXT:
 950         if (wParam)
 951         {
 952             LPWSTR dest = (LPWSTR)lParam;
 953             WND *wndPtr = WIN_GetPtr( hwnd );
 954
 955             if (!wndPtr) break;
 956             result = DEFWND_GetTextW( wndPtr, dest, wParam );
 957             WIN_ReleasePtr( wndPtr );
 958         }
 959         break;
 960
 961     case WM_SETTEXT:
 962         DEFWND_SetTextW( hwnd, (LPCWSTR)lParam );
 963         if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
 964             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 965         result = 1; /* success. FIXME: check text length */
 966         break;
 967
 968     case WM_IME_CHAR:
 969         PostMessageW( hwnd, WM_CHAR, wParam, lParam );
 970         break;
 971
 972     case WM_IME_SETCONTEXT:
 973         {
 974             HWND hwndIME;
 975
 976             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 977             if (hwndIME)
 978                 result = DEFWND_ImmIsUIMessageW( hwndIME, msg, wParam, lParam );
 979         }
 980         break;
 981
 982     case WM_IME_STARTCOMPOSITION:
 983     case WM_IME_COMPOSITION:
 984     case WM_IME_ENDCOMPOSITION:
 985     case WM_IME_SELECT:
 986         {
 987             HWND hwndIME;
 988
 989             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 990             if (hwndIME)
 991                 result = SendMessageW( hwndIME, msg, wParam, lParam );
 992         }
 993         break;
 994
 995     case WM_INPUTLANGCHANGEREQUEST:
 996         /* notify about the switch only if it's really our current layout */
 997         if ((HKL)lParam == GetKeyboardLayout(0))
 998             result = SendMessageW( hwnd, WM_INPUTLANGCHANGE, wParam, lParam );
 999         else
1000             result = 0;
1001         break;
1002
1003     default:
1004         result = DEFWND_DefWinProc( hwnd, msg, wParam, lParam );
1005         break;
1006     }
1007     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
1008     return result;
1009 }