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     case WM_NCLBUTTONDBLCLK:
 329         return NC_HandleNCLButtonDblClk( hwnd, wParam, lParam );
 330
 331     case WM_NCRBUTTONDOWN:
 332         /* in Windows, capture is taken when right-clicking on the caption bar */
 333         if (wParam==HTCAPTION)
 334         {
 335             SetCapture(hwnd);
 336         }
 337         break;
 338
 339     case WM_RBUTTONUP:
 340         {
 341             POINT pt;
 342
 343             if (hwnd == GetCapture())
 344                 /* release capture if we took it on WM_NCRBUTTONDOWN */
 345                 ReleaseCapture();
 346
 347             pt.x = (short)LOWORD(lParam);
 348             pt.y = (short)HIWORD(lParam);
 349             ClientToScreen(hwnd, &pt);
 350             SendMessageW( hwnd, WM_CONTEXTMENU, (WPARAM)hwnd, MAKELPARAM(pt.x, pt.y) );
 351         }
 352         break;
 353
 354     case WM_NCRBUTTONUP:
 355         /*
 356          * FIXME : we must NOT send WM_CONTEXTMENU on a WM_NCRBUTTONUP (checked
 357          * in Windows), but what _should_ we do? According to MSDN :
 358          * "If it is appropriate to do so, the system sends the WM_SYSCOMMAND
 359          * message to the window". When is it appropriate?
 360          */
 361         break;
 362
 363     case WM_CONTEXTMENU:
 364         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 365             SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 366         else
 367         {
 368             LONG hitcode;
 369             POINT pt;
 370             WND *wndPtr = WIN_GetPtr( hwnd );
 371             HMENU hMenu = wndPtr->hSysMenu;
 372             WIN_ReleasePtr( wndPtr );
 373             if (!hMenu) return 0;
 374             pt.x = (short)LOWORD(lParam);
 375             pt.y = (short)HIWORD(lParam);
 376             hitcode = NC_HandleNCHitTest(hwnd, pt);
 377
 378             /* Track system popup if click was in the caption area. */
 379             if (hitcode==HTCAPTION || hitcode==HTSYSMENU)
 380                TrackPopupMenu(GetSystemMenu(hwnd, FALSE),
 381                                TPM_LEFTBUTTON | TPM_RIGHTBUTTON,
 382                                pt.x, pt.y, 0, hwnd, NULL);
 383         }
 384         break;
 385
 386     case WM_NCACTIVATE:
 387         return NC_HandleNCActivate( hwnd, wParam );
 388
 389     case WM_NCDESTROY:
 390         {
 391             WND *wndPtr = WIN_GetPtr( hwnd );
 392             if (!wndPtr) return 0;
 393             HeapFree( GetProcessHeap(), 0, wndPtr->text );
 394             wndPtr->text = NULL;
 395             HeapFree( GetProcessHeap(), 0, wndPtr->pVScroll );
 396             HeapFree( GetProcessHeap(), 0, wndPtr->pHScroll );
 397             wndPtr->pVScroll = wndPtr->pHScroll = NULL;
 398             WIN_ReleasePtr( wndPtr );
 399             return 0;
 400         }
 401
 402     case WM_PRINT:
 403         DEFWND_Print(hwnd, (HDC)wParam, lParam);
 404         return 0;
 405
 406     case WM_PAINTICON:
 407     case WM_PAINT:
 408         {
 409             PAINTSTRUCT ps;
 410             HDC hdc = BeginPaint( hwnd, &ps );
 411             if( hdc )
 412             {
 413               HICON hIcon;
 414               if (IsIconic(hwnd) && ((hIcon = (HICON)GetClassLongPtrW( hwnd, GCLP_HICON))) )
 415               {
 416                   RECT rc;
 417                   int x, y;
 418
 419                   GetClientRect( hwnd, &rc );
 420                   x = (rc.right - rc.left - GetSystemMetrics(SM_CXICON))/2;
 421                   y = (rc.bottom - rc.top - GetSystemMetrics(SM_CYICON))/2;
 422                   TRACE("Painting class icon: vis rect=(%d,%d - %d,%d)\n",
 423                         ps.rcPaint.left, ps.rcPaint.top, ps.rcPaint.right, ps.rcPaint.bottom );
 424                   DrawIcon( hdc, x, y, hIcon );
 425               }
 426               EndPaint( hwnd, &ps );
 427             }
 428             return 0;
 429         }
 430
 431     case WM_SYNCPAINT:
 432         RedrawWindow ( hwnd, NULL, 0, RDW_ERASENOW | RDW_ERASE | RDW_ALLCHILDREN );
 433         return 0;
 434
 435     case WM_SETREDRAW:
 436         if (wParam) WIN_SetStyle( hwnd, WS_VISIBLE, 0 );
 437         else
 438         {
 439             RedrawWindow( hwnd, NULL, 0, RDW_ALLCHILDREN | RDW_VALIDATE );
 440             WIN_SetStyle( hwnd, 0, WS_VISIBLE );
 441         }
 442         return 0;
 443
 444     case WM_CLOSE:
 445         DestroyWindow( hwnd );
 446         return 0;
 447
 448     case WM_MOUSEACTIVATE:
 449         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 450         {
 451             LONG ret = SendMessageW( GetParent(hwnd), WM_MOUSEACTIVATE, wParam, lParam );
 452             if (ret) return ret;
 453         }
 454
 455         /* Caption clicks are handled by NC_HandleNCLButtonDown() */
 456         return MA_ACTIVATE;
 457
 458     case WM_ACTIVATE:
 459         /* The default action in Windows is to set the keyboard focus to
 460          * the window, if it's being activated and not minimized */
 461         if (LOWORD(wParam) != WA_INACTIVE) {
 462             if (!IsIconic(hwnd)) SetFocus(hwnd);
 463         }
 464         break;
 465
 466     case WM_MOUSEWHEEL:
 467         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 468             return SendMessageW( GetParent(hwnd), WM_MOUSEWHEEL, wParam, lParam );
 469         break;
 470
 471     case WM_ERASEBKGND:
 472     case WM_ICONERASEBKGND:
 473         {
 474             RECT rect;
 475             HDC hdc = (HDC)wParam;
 476             HBRUSH hbr = (HBRUSH)GetClassLongPtrW( hwnd, GCLP_HBRBACKGROUND );
 477             if (!hbr) return 0;
 478
 479             if (GetClassLongW( hwnd, GCL_STYLE ) & CS_PARENTDC)
 480             {
 481                 /* can't use GetClipBox with a parent DC or we fill the whole parent */
 482                 GetClientRect( hwnd, &rect );
 483                 DPtoLP( hdc, (LPPOINT)&rect, 2 );
 484             }
 485             else GetClipBox( hdc, &rect );
 486             FillRect( hdc, &rect, hbr );
 487             return 1;
 488         }
 489
 490     case WM_GETDLGCODE:
 491         return 0;
 492
 493     case WM_CTLCOLORMSGBOX:
 494     case WM_CTLCOLOREDIT:
 495     case WM_CTLCOLORLISTBOX:
 496     case WM_CTLCOLORBTN:
 497     case WM_CTLCOLORDLG:
 498     case WM_CTLCOLORSTATIC:
 499     case WM_CTLCOLORSCROLLBAR:
 500         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, msg - WM_CTLCOLORMSGBOX );
 501
 502     case WM_CTLCOLOR:
 503         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, HIWORD(lParam) );
 504
 505     case WM_SETCURSOR:
 506         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 507         {
 508             /* with the exception of the border around a resizable wnd,
 509              * give the parent first chance to set the cursor */
 510             if ((LOWORD(lParam) < HTSIZEFIRST) || (LOWORD(lParam) > HTSIZELAST))
 511             {
 512                 if (SendMessageW(GetParent(hwnd), WM_SETCURSOR, wParam, lParam)) return TRUE;
 513             }
 514         }
 515         NC_HandleSetCursor( hwnd, wParam, lParam );
 516         break;
 517
 518     case WM_SYSCOMMAND:
 519         return NC_HandleSysCommand( hwnd, wParam, lParam );
 520
 521     case WM_KEYDOWN:
 522         if(wParam == VK_F10) iF10Key = VK_F10;
 523         break;
 524
 525     case WM_SYSKEYDOWN:
 526         if( HIWORD(lParam) & KEYDATA_ALT )
 527         {
 528             /* if( HIWORD(lParam) & ~KEYDATA_PREVSTATE ) */
 529               if ( (wParam == VK_MENU || wParam == VK_LMENU
 530                     || wParam == VK_RMENU) && !iMenuSysKey )
 531                 iMenuSysKey = 1;
 532               else
 533                 iMenuSysKey = 0;
 534
 535             iF10Key = 0;
 536
 537             if( wParam == VK_F4 )       /* try to close the window */
 538             {
 539                 HWND top = GetAncestor( hwnd, GA_ROOT );
 540                 if (!(GetClassLongW( top, GCL_STYLE ) & CS_NOCLOSE))
 541                     PostMessageW( top, WM_SYSCOMMAND, SC_CLOSE, 0 );
 542             }
 543         }
 544         else if( wParam == VK_F10 )
 545             iF10Key = 1;
 546         else if( wParam == VK_ESCAPE && (GetKeyState(VK_SHIFT) & 0x8000))
 547             SendMessageW( hwnd, WM_SYSCOMMAND, SC_KEYMENU, ' ' );
 548         break;
 549
 550     case WM_KEYUP:
 551     case WM_SYSKEYUP:
 552         /* Press and release F10 or ALT */
 553         if (((wParam == VK_MENU || wParam == VK_LMENU || wParam == VK_RMENU)
 554              && iMenuSysKey) || ((wParam == VK_F10) && iF10Key))
 555               SendMessageW( GetAncestor( hwnd, GA_ROOT ), WM_SYSCOMMAND, SC_KEYMENU, 0L );
 556         iMenuSysKey = iF10Key = 0;
 557         break;
 558
 559     case WM_SYSCHAR:
 560     {
 561         iMenuSysKey = 0;
 562         if (wParam == '\r' && IsIconic(hwnd))
 563         {
 564             PostMessageW( hwnd, WM_SYSCOMMAND, SC_RESTORE, 0L );
 565             break;
 566         }
 567         if ((HIWORD(lParam) & KEYDATA_ALT) && wParam)
 568         {
 569             if (wParam == '\t' || wParam == '\x1b') break;
 570             if (wParam == ' ' && (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD))
 571                 SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 572             else
 573                 SendMessageW( hwnd, WM_SYSCOMMAND, SC_KEYMENU, wParam );
 574         }
 575         else /* check for Ctrl-Esc */
 576             if (wParam != '\x1b') MessageBeep(0);
 577         break;
 578     }
 579
 580     case WM_SHOWWINDOW:
 581         {
 582             LONG style = GetWindowLongW( hwnd, GWL_STYLE );
 583             WND *pWnd;
 584             if (!lParam) return 0; /* sent from ShowWindow */
 585             if ((style & WS_VISIBLE) && wParam) return 0;
 586             if (!(style & WS_VISIBLE) && !wParam) return 0;
 587             if (!GetWindow( hwnd, GW_OWNER )) return 0;
 588             if (!(pWnd = WIN_GetPtr( hwnd ))) return 0;
 589             if (pWnd == WND_OTHER_PROCESS) return 0;
 590             if (wParam)
 591             {
 592                 if (!(pWnd->flags & WIN_NEEDS_SHOW_OWNEDPOPUP))
 593                 {
 594                     WIN_ReleasePtr( pWnd );
 595                     return 0;
 596                 }
 597                 pWnd->flags &= ~WIN_NEEDS_SHOW_OWNEDPOPUP;
 598             }
 599             else pWnd->flags |= WIN_NEEDS_SHOW_OWNEDPOPUP;
 600             WIN_ReleasePtr( pWnd );
 601             ShowWindow( hwnd, wParam ? SW_SHOWNOACTIVATE : SW_HIDE );
 602             break;
 603         }
 604
 605     case WM_CANCELMODE:
 606         iMenuSysKey = 0;
 607         if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) EndMenu();
 608         if (GetCapture() == hwnd) ReleaseCapture();
 609         break;
 610
 611     case WM_VKEYTOITEM:
 612     case WM_CHARTOITEM:
 613         return -1;
 614
 615     case WM_DROPOBJECT:
 616         return DRAG_FILE;
 617
 618     case WM_QUERYDROPOBJECT:
 619         return (GetWindowLongA( hwnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES) != 0;
 620
 621     case WM_QUERYDRAGICON:
 622         {
 623             UINT len;
 624
 625             HICON hIcon = (HICON)GetClassLongPtrW( hwnd, GCLP_HICON );
 626             HINSTANCE instance = (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE );
 627             if (hIcon) return (LRESULT)hIcon;
 628             for(len=1; len<64; len++)
 629                 if((hIcon = LoadIconW(instance, MAKEINTRESOURCEW(len))))
 630                     return (LRESULT)hIcon;
 631             return (LRESULT)LoadIconW(0, (LPWSTR)IDI_APPLICATION);
 632         }
 633         break;
 634
 635     case WM_ISACTIVEICON:
 636         {
 637             WND *wndPtr = WIN_GetPtr( hwnd );
 638             BOOL ret = (wndPtr->flags & WIN_NCACTIVATED) != 0;
 639             WIN_ReleasePtr( wndPtr );
 640             return ret;
 641         }
 642
 643     case WM_NOTIFYFORMAT:
 644       if (IsWindowUnicode(hwnd)) return NFR_UNICODE;
 645       else return NFR_ANSI;
 646
 647     case WM_QUERYOPEN:
 648     case WM_QUERYENDSESSION:
 649         return 1;
 650
 651     case WM_ENDSESSION:
 652         if (wParam)
 653             PostQuitMessage(0);
 654         return 0;
 655
 656     case WM_SETICON:
 657         {
 658             HICON ret;
 659             WND *wndPtr = WIN_GetPtr( hwnd );
 660
 661             switch(wParam)
 662             {
 663             case ICON_SMALL:
 664                 ret = wndPtr->hIconSmall;
 665                 wndPtr->hIconSmall = (HICON)lParam;
 666                 break;
 667             case ICON_BIG:
 668                 ret = wndPtr->hIcon;
 669                 wndPtr->hIcon = (HICON)lParam;
 670                 break;
 671             default:
 672                 ret = 0;
 673                 break;
 674             }
 675             WIN_ReleasePtr( wndPtr );
 676
 677             USER_Driver->pSetWindowIcon( hwnd, wParam, (HICON)lParam );
 678
 679             if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
 680                 NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 681
 682             return (LRESULT)ret;
 683         }
 684
 685     case WM_GETICON:
 686         {
 687             HICON ret;
 688             WND *wndPtr = WIN_GetPtr( hwnd );
 689
 690             switch(wParam)
 691             {
 692             case ICON_SMALL:
 693                 ret = wndPtr->hIconSmall;
 694                 break;
 695             case ICON_BIG:
 696                 ret = wndPtr->hIcon;
 697                 break;
 698             case ICON_SMALL2:
 699                 ret = wndPtr->hIconSmall;
 700                 if (!ret) ret = (HICON)GetClassLongPtrW( hwnd, GCLP_HICONSM );
 701                 /* FIXME: should have a default here if class icon is null */
 702                 break;
 703             default:
 704                 ret = 0;
 705                 break;
 706             }
 707             WIN_ReleasePtr( wndPtr );
 708             return (LRESULT)ret;
 709         }
 710
 711     case WM_HELP:
 712         SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 713         break;
 714
 715     case WM_APPCOMMAND:
 716         {
 717             HWND parent = GetParent(hwnd);
 718             if(!parent)
 719                 HOOK_CallHooks(WH_SHELL, HSHELL_APPCOMMAND, wParam, lParam, TRUE);
 720             else
 721                 SendMessageW( parent, msg, wParam, lParam );
 722             break;
 723         }
 724     }
 725
 726     return 0;
 727 }
 728
 729 static LPARAM DEFWND_GetTextA( WND *wndPtr, LPSTR dest, WPARAM wParam )
 730 {
 731     LPARAM result = 0;
 732
 733     __TRY
 734     {
 735         if (wndPtr->text)
 736         {
 737             if (!WideCharToMultiByte( CP_ACP, 0, wndPtr->text, -1,
 738                                       dest, wParam, NULL, NULL )) dest[wParam-1] = 0;
 739             result = strlen( dest );
 740         }
 741         else dest[0] = '\0';
 742     }
 743     __EXCEPT_PAGE_FAULT
 744     {
 745         return 0;
 746     }
 747     __ENDTRY
 748     return result;
 749 }
 750
 751 /***********************************************************************
 752  *              DefWindowProcA (USER32.@)
 753  *
 754  * See DefWindowProcW.
 755  */
 756 LRESULT WINAPI DefWindowProcA( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
 757 {
 758     LRESULT result = 0;
 759     HWND full_handle;
 760
 761     if (!(full_handle = WIN_IsCurrentProcess( hwnd )))
 762     {
 763         if (!IsWindow( hwnd )) return 0;
 764         ERR( "called for other process window %p\n", hwnd );
 765         return 0;
 766     }
 767     hwnd = full_handle;
 768
 769     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
 770
 771     switch(msg)
 772     {
 773     case WM_NCCREATE:
 774         if (lParam)
 775         {
 776             CREATESTRUCTA *cs = (CREATESTRUCTA *)lParam;
 777             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 778              * may have child window IDs instead of window name */
 779             if (HIWORD(cs->lpszName))
 780                 DEFWND_SetTextA( hwnd, cs->lpszName );
 781             result = 1;
 782         }
 783         break;
 784
 785     case WM_GETTEXTLENGTH:
 786         {
 787             WND *wndPtr = WIN_GetPtr( hwnd );
 788             if (wndPtr && wndPtr->text)
 789                 result = WideCharToMultiByte( CP_ACP, 0, wndPtr->text, strlenW(wndPtr->text),
 790                                               NULL, 0, NULL, NULL );
 791             WIN_ReleasePtr( wndPtr );
 792         }
 793         break;
 794
 795     case WM_GETTEXT:
 796         if (wParam)
 797         {
 798             LPSTR dest = (LPSTR)lParam;
 799             WND *wndPtr = WIN_GetPtr( hwnd );
 800
 801             if (!wndPtr) break;
 802             result = DEFWND_GetTextA( wndPtr, dest, wParam );
 803
 804             WIN_ReleasePtr( wndPtr );
 805         }
 806         break;
 807
 808     case WM_SETTEXT:
 809         DEFWND_SetTextA( hwnd, (LPCSTR)lParam );
 810         if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
 811             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 812         result = 1; /* success. FIXME: check text length */
 813         break;
 814
 815     case WM_IME_CHAR:
 816         if (HIBYTE(wParam)) PostMessageA( hwnd, WM_CHAR, HIBYTE(wParam), lParam );
 817         PostMessageA( hwnd, WM_CHAR, LOBYTE(wParam), lParam );
 818         break;
 819
 820     case WM_IME_KEYDOWN:
 821         result = SendMessageA( hwnd, WM_KEYDOWN, wParam, lParam );
 822         break;
 823
 824     case WM_IME_KEYUP:
 825         result = SendMessageA( hwnd, WM_KEYUP, wParam, lParam );
 826         break;
 827
 828     case WM_IME_STARTCOMPOSITION:
 829     case WM_IME_COMPOSITION:
 830     case WM_IME_ENDCOMPOSITION:
 831     case WM_IME_SELECT:
 832         {
 833             HWND hwndIME;
 834
 835             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 836             if (hwndIME)
 837                 result = SendMessageA( hwndIME, msg, wParam, lParam );
 838         }
 839         break;
 840     case WM_IME_SETCONTEXT:
 841         {
 842             HWND hwndIME;
 843
 844             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 845             if (hwndIME)
 846                 result = DEFWND_ImmIsUIMessageA( hwndIME, msg, wParam, lParam );
 847         }
 848         break;
 849
 850     case WM_INPUTLANGCHANGEREQUEST:
 851         /* notify about the switch only if it's really our current layout */
 852         if ((HKL)lParam == GetKeyboardLayout(0))
 853             result = SendMessageA( hwnd, WM_INPUTLANGCHANGE, wParam, lParam );
 854         else
 855             result = 0;
 856         break;
 857
 858     case WM_SYSCHAR:
 859     {
 860         CHAR ch = LOWORD(wParam);
 861         WCHAR wch;
 862         MultiByteToWideChar(CP_ACP, 0, &ch, 1, &wch, 1);
 863         wParam = MAKEWPARAM( wch, HIWORD(wParam) );
 864     }
 865     /* fall through */
 866     default:
 867         result = DEFWND_DefWinProc( hwnd, msg, wParam, lParam );
 868         break;
 869     }
 870
 871     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
 872     return result;
 873 }
 874
 875
 876 static LPARAM DEFWND_GetTextW( WND *wndPtr, LPWSTR dest, WPARAM wParam )
 877 {
 878     LPARAM result = 0;
 879
 880     __TRY
 881     {
 882         if (wndPtr->text)
 883         {
 884             lstrcpynW( dest, wndPtr->text, wParam );
 885             result = strlenW( dest );
 886         }
 887         else dest[0] = '\0';
 888     }
 889     __EXCEPT_PAGE_FAULT
 890     {
 891         return 0;
 892     }
 893     __ENDTRY
 894
 895     return result;
 896 }
 897
 898 /***********************************************************************
 899  *              DefWindowProcW (USER32.@) Calls default window message handler
 900  *
 901  * Calls default window procedure for messages not processed
 902  *  by application.
 903  *
 904  *  RETURNS
 905  *     Return value is dependent upon the message.
 906 */
 907 LRESULT WINAPI DefWindowProcW(
 908     HWND hwnd,      /* [in] window procedure receiving message */
 909     UINT msg,       /* [in] message identifier */
 910     WPARAM wParam,  /* [in] first message parameter */
 911     LPARAM lParam )   /* [in] second message parameter */
 912 {
 913     LRESULT result = 0;
 914     HWND full_handle;
 915
 916     if (!(full_handle = WIN_IsCurrentProcess( hwnd )))
 917     {
 918         if (!IsWindow( hwnd )) return 0;
 919         ERR( "called for other process window %p\n", hwnd );
 920         return 0;
 921     }
 922     hwnd = full_handle;
 923     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
 924
 925     switch(msg)
 926     {
 927     case WM_NCCREATE:
 928         if (lParam)
 929         {
 930             CREATESTRUCTW *cs = (CREATESTRUCTW *)lParam;
 931             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 932              * may have child window IDs instead of window name */
 933             if (HIWORD(cs->lpszName))
 934                 DEFWND_SetTextW( hwnd, cs->lpszName );
 935             result = 1;
 936         }
 937         break;
 938
 939     case WM_GETTEXTLENGTH:
 940         {
 941             WND *wndPtr = WIN_GetPtr( hwnd );
 942             if (wndPtr && wndPtr->text) result = (LRESULT)strlenW(wndPtr->text);
 943             WIN_ReleasePtr( wndPtr );
 944         }
 945         break;
 946
 947     case WM_GETTEXT:
 948         if (wParam)
 949         {
 950             LPWSTR dest = (LPWSTR)lParam;
 951             WND *wndPtr = WIN_GetPtr( hwnd );
 952
 953             if (!wndPtr) break;
 954             result = DEFWND_GetTextW( wndPtr, dest, wParam );
 955             WIN_ReleasePtr( wndPtr );
 956         }
 957         break;
 958
 959     case WM_SETTEXT:
 960         DEFWND_SetTextW( hwnd, (LPCWSTR)lParam );
 961         if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
 962             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 963         result = 1; /* success. FIXME: check text length */
 964         break;
 965
 966     case WM_IME_CHAR:
 967         PostMessageW( hwnd, WM_CHAR, wParam, lParam );
 968         break;
 969
 970     case WM_IME_SETCONTEXT:
 971         {
 972             HWND hwndIME;
 973
 974             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 975             if (hwndIME)
 976                 result = DEFWND_ImmIsUIMessageW( hwndIME, msg, wParam, lParam );
 977         }
 978         break;
 979
 980     case WM_IME_STARTCOMPOSITION:
 981     case WM_IME_COMPOSITION:
 982     case WM_IME_ENDCOMPOSITION:
 983     case WM_IME_SELECT:
 984         {
 985             HWND hwndIME;
 986
 987             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 988             if (hwndIME)
 989                 result = SendMessageW( hwndIME, msg, wParam, lParam );
 990         }
 991         break;
 992
 993     case WM_INPUTLANGCHANGEREQUEST:
 994         /* notify about the switch only if it's really our current layout */
 995         if ((HKL)lParam == GetKeyboardLayout(0))
 996             result = SendMessageW( hwnd, WM_INPUTLANGCHANGE, wParam, lParam );
 997         else
 998             result = 0;
 999         break;
1000
1001     default:
1002         result = DEFWND_DefWinProc( hwnd, msg, wParam, lParam );
1003         break;
1004     }
1005     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
1006     return result;
1007 }