windows/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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include <string.h>
  23
  24 #include "win.h"
  25 #include "user.h"
  26 #include "nonclient.h"
  27 #include "winpos.h"
  28 #include "dce.h"
  29 #include "windef.h"
  30 #include "wingdi.h"
  31 #include "winnls.h"
  32 #include "imm.h"
  33 #include "message.h"
  34 #include "wine/unicode.h"
  35 #include "wine/winuser16.h"
  36 #include "wine/server.h"
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(win);
  40
  41   /* bits in the dwKeyData */
  42 #define KEYDATA_ALT             0x2000
  43 #define KEYDATA_PREVSTATE       0x4000
  44
  45 static short iF10Key = 0;
  46 static short iMenuSysKey = 0;
  47
  48 /***********************************************************************
  49  *           DEFWND_HandleWindowPosChanged
  50  *
  51  * Handle the WM_WINDOWPOSCHANGED message.
  52  */
  53 static void DEFWND_HandleWindowPosChanged( HWND hwnd, UINT flags )
  54 {
  55     RECT rect;
  56     WND *wndPtr = WIN_GetPtr( hwnd );
  57
  58     rect = wndPtr->rectClient;
  59     WIN_ReleasePtr( wndPtr );
  60
  61     if (!(flags & SWP_NOCLIENTMOVE))
  62         SendMessageW( hwnd, WM_MOVE, 0, MAKELONG(rect.left, rect.top));
  63
  64     if (!(flags & SWP_NOCLIENTSIZE))
  65     {
  66         WPARAM wp = SIZE_RESTORED;
  67         if (IsZoomed(hwnd)) wp = SIZE_MAXIMIZED;
  68         else if (IsIconic(hwnd)) wp = SIZE_MINIMIZED;
  69
  70         SendMessageW( hwnd, WM_SIZE, wp, MAKELONG(rect.right-rect.left, rect.bottom-rect.top) );
  71     }
  72 }
  73
  74
  75 /***********************************************************************
  76  *           DEFWND_SetTextA
  77  *
  78  * Set the window text.
  79  */
  80 static void DEFWND_SetTextA( HWND hwnd, LPCSTR text )
  81 {
  82     int count;
  83     WCHAR *textW;
  84     WND *wndPtr;
  85
  86     if (!text) text = "";
  87     count = MultiByteToWideChar( CP_ACP, 0, text, -1, NULL, 0 );
  88
  89     if (!(wndPtr = WIN_GetPtr( hwnd ))) return;
  90     if ((textW = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR))))
  91     {
  92         if (wndPtr->text) HeapFree(GetProcessHeap(), 0, wndPtr->text);
  93         wndPtr->text = textW;
  94         MultiByteToWideChar( CP_ACP, 0, text, -1, textW, count );
  95         SERVER_START_REQ( set_window_text )
  96         {
  97             req->handle = hwnd;
  98             wine_server_add_data( req, textW, (count-1) * sizeof(WCHAR) );
  99             wine_server_call( req );
 100         }
 101         SERVER_END_REQ;
 102     }
 103     else
 104         ERR("Not enough memory for window text\n");
 105     WIN_ReleasePtr( wndPtr );
 106
 107     if (USER_Driver.pSetWindowText) USER_Driver.pSetWindowText( hwnd, textW );
 108 }
 109
 110 /***********************************************************************
 111  *           DEFWND_SetTextW
 112  *
 113  * Set the window text.
 114  */
 115 static void DEFWND_SetTextW( HWND hwnd, LPCWSTR text )
 116 {
 117     static const WCHAR empty_string[] = {0};
 118     WND *wndPtr;
 119     int count;
 120
 121     if (!text) text = empty_string;
 122     count = strlenW(text) + 1;
 123
 124     if (!(wndPtr = WIN_GetPtr( hwnd ))) return;
 125     if (wndPtr->text) HeapFree(GetProcessHeap(), 0, wndPtr->text);
 126     if ((wndPtr->text = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR))))
 127     {
 128         strcpyW( wndPtr->text, text );
 129         SERVER_START_REQ( set_window_text )
 130         {
 131             req->handle = hwnd;
 132             wine_server_add_data( req, wndPtr->text, (count-1) * sizeof(WCHAR) );
 133             wine_server_call( req );
 134         }
 135         SERVER_END_REQ;
 136     }
 137     else
 138         ERR("Not enough memory for window text\n");
 139     text = wndPtr->text;
 140     WIN_ReleasePtr( wndPtr );
 141
 142     if (USER_Driver.pSetWindowText) USER_Driver.pSetWindowText( hwnd, text );
 143 }
 144
 145 /***********************************************************************
 146  *           DEFWND_ControlColor
 147  *
 148  * Default colors for control painting.
 149  */
 150 HBRUSH DEFWND_ControlColor( HDC hDC, UINT ctlType )
 151 {
 152     if( ctlType == CTLCOLOR_SCROLLBAR)
 153     {
 154         HBRUSH hb = GetSysColorBrush(COLOR_SCROLLBAR);
 155         if (TWEAK_WineLook == WIN31_LOOK) {
 156            SetTextColor( hDC, RGB(0, 0, 0) );
 157            SetBkColor( hDC, RGB(255, 255, 255) );
 158         } else {
 159            COLORREF bk = GetSysColor(COLOR_3DHILIGHT);
 160            SetTextColor( hDC, GetSysColor(COLOR_3DFACE));
 161            SetBkColor( hDC, bk);
 162
 163            /* if COLOR_WINDOW happens to be the same as COLOR_3DHILIGHT
 164             * we better use 0x55aa bitmap brush to make scrollbar's background
 165             * look different from the window background.
 166             */
 167            if (bk == GetSysColor(COLOR_WINDOW)) {
 168                return CACHE_GetPattern55AABrush();
 169            }
 170         }
 171         UnrealizeObject( hb );
 172         return hb;
 173     }
 174
 175     SetTextColor( hDC, GetSysColor(COLOR_WINDOWTEXT));
 176
 177     if (TWEAK_WineLook > WIN31_LOOK) {
 178         if ((ctlType == CTLCOLOR_EDIT) || (ctlType == CTLCOLOR_LISTBOX))
 179             SetBkColor( hDC, GetSysColor(COLOR_WINDOW) );
 180         else {
 181             SetBkColor( hDC, GetSysColor(COLOR_3DFACE) );
 182             return GetSysColorBrush(COLOR_3DFACE);
 183         }
 184     }
 185     else
 186         SetBkColor( hDC, GetSysColor(COLOR_WINDOW) );
 187     return GetSysColorBrush(COLOR_WINDOW);
 188 }
 189
 190
 191 /***********************************************************************
 192  *           DEFWND_SetRedraw
 193  */
 194 static void DEFWND_SetRedraw( HWND hwnd, WPARAM wParam )
 195 {
 196     WND *wndPtr = WIN_FindWndPtr( hwnd );
 197     BOOL bVisible = wndPtr->dwStyle & WS_VISIBLE;
 198
 199     TRACE("%p %i\n", hwnd, (wParam!=0) );
 200
 201     if( wParam )
 202     {
 203         if( !bVisible )
 204         {
 205             WIN_SetStyle( hwnd, wndPtr->dwStyle | WS_VISIBLE );
 206             DCE_InvalidateDCE( hwnd, &wndPtr->rectWindow );
 207         }
 208     }
 209     else if( bVisible )
 210     {
 211         if( wndPtr->dwStyle & WS_MINIMIZE ) wParam = RDW_VALIDATE;
 212         else wParam = RDW_ALLCHILDREN | RDW_VALIDATE;
 213
 214         RedrawWindow( hwnd, NULL, 0, wParam );
 215         DCE_InvalidateDCE( hwnd, &wndPtr->rectWindow );
 216         WIN_SetStyle( hwnd, wndPtr->dwStyle & ~WS_VISIBLE );
 217     }
 218     WIN_ReleaseWndPtr( wndPtr );
 219 }
 220
 221 /***********************************************************************
 222  *           DEFWND_Print
 223  *
 224  * This method handles the default behavior for the WM_PRINT message.
 225  */
 226 static void DEFWND_Print( HWND hwnd, HDC hdc, ULONG uFlags)
 227 {
 228   /*
 229    * Visibility flag.
 230    */
 231   if ( (uFlags & PRF_CHECKVISIBLE) &&
 232        !IsWindowVisible(hwnd) )
 233       return;
 234
 235   /*
 236    * Unimplemented flags.
 237    */
 238   if ( (uFlags & PRF_CHILDREN) ||
 239        (uFlags & PRF_OWNED)    ||
 240        (uFlags & PRF_NONCLIENT) )
 241   {
 242     WARN("WM_PRINT message with unsupported flags\n");
 243   }
 244
 245   /*
 246    * Background
 247    */
 248   if ( uFlags & PRF_ERASEBKGND)
 249     SendMessageW(hwnd, WM_ERASEBKGND, (WPARAM)hdc, 0);
 250
 251   /*
 252    * Client area
 253    */
 254   if ( uFlags & PRF_CLIENT)
 255     SendMessageW(hwnd, WM_PRINTCLIENT, (WPARAM)hdc, PRF_CLIENT);
 256 }
 257
 258
 259 /*
 260  * helpers for calling IMM32
 261  *
 262  * WM_IME_* messages are generated only by IMM32,
 263  * so I assume imm32 is already LoadLibrary-ed.
 264  */
 265 static HWND DEFWND_ImmGetDefaultIMEWnd( HWND hwnd )
 266 {
 267     HINSTANCE hInstIMM = GetModuleHandleA( "imm32" );
 268     HWND (WINAPI *pFunc)(HWND);
 269     HWND hwndRet = 0;
 270
 271     if (!hInstIMM)
 272     {
 273         ERR( "cannot get IMM32 handle\n" );
 274         return 0;
 275     }
 276
 277     pFunc = (void*)GetProcAddress(hInstIMM,"ImmGetDefaultIMEWnd");
 278     if ( pFunc != NULL )
 279         hwndRet = (*pFunc)( hwnd );
 280
 281     return hwndRet;
 282 }
 283
 284 static BOOL DEFWND_ImmIsUIMessageA( HWND hwndIME, UINT msg, WPARAM wParam, LPARAM lParam )
 285 {
 286     HINSTANCE hInstIMM = GetModuleHandleA( "imm32" );
 287     BOOL (WINAPI *pFunc)(HWND,UINT,WPARAM,LPARAM);
 288     BOOL fRet = FALSE;
 289
 290     if (!hInstIMM)
 291     {
 292         ERR( "cannot get IMM32 handle\n" );
 293         return FALSE;
 294     }
 295
 296     pFunc = (void*)GetProcAddress(hInstIMM,"ImmIsUIMessageA");
 297     if ( pFunc != NULL )
 298         fRet = (*pFunc)( hwndIME, msg, wParam, lParam );
 299
 300     return fRet;
 301 }
 302
 303 static BOOL DEFWND_ImmIsUIMessageW( HWND hwndIME, UINT msg, WPARAM wParam, LPARAM lParam )
 304 {
 305     HINSTANCE hInstIMM = GetModuleHandleA( "imm32" );
 306     BOOL (WINAPI *pFunc)(HWND,UINT,WPARAM,LPARAM);
 307     BOOL fRet = FALSE;
 308
 309     if (!hInstIMM)
 310     {
 311         ERR( "cannot get IMM32 handle\n" );
 312         return FALSE;
 313     }
 314
 315     pFunc = (void*)GetProcAddress(hInstIMM,"ImmIsUIMessageW");
 316     if ( pFunc != NULL )
 317         fRet = (*pFunc)( hwndIME, msg, wParam, lParam );
 318
 319     return fRet;
 320 }
 321
 322
 323
 324 /***********************************************************************
 325  *           DEFWND_DefWinProc
 326  *
 327  * Default window procedure for messages that are the same in Win16 and Win32.
 328  */
 329 static LRESULT DEFWND_DefWinProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
 330 {
 331     switch(msg)
 332     {
 333     case WM_NCPAINT:
 334         return NC_HandleNCPaint( hwnd, (HRGN)wParam );
 335
 336     case WM_NCHITTEST:
 337         {
 338             POINT pt;
 339             pt.x = (short)LOWORD(lParam);
 340             pt.y = (short)HIWORD(lParam);
 341             return NC_HandleNCHitTest( hwnd, pt );
 342         }
 343
 344     case WM_NCLBUTTONDOWN:
 345         return NC_HandleNCLButtonDown( hwnd, wParam, lParam );
 346
 347     case WM_LBUTTONDBLCLK:
 348     case WM_NCLBUTTONDBLCLK:
 349         return NC_HandleNCLButtonDblClk( hwnd, wParam, lParam );
 350
 351     case WM_NCRBUTTONDOWN:
 352         /* in Windows, capture is taken when right-clicking on the caption bar */
 353         if (wParam==HTCAPTION)
 354         {
 355             SetCapture(hwnd);
 356         }
 357         break;
 358
 359     case WM_RBUTTONUP:
 360         {
 361             POINT pt;
 362
 363             if (hwnd == GetCapture())
 364                 /* release capture if we took it on WM_NCRBUTTONDOWN */
 365                 ReleaseCapture();
 366
 367             pt.x = (short)LOWORD(lParam);
 368             pt.y = (short)HIWORD(lParam);
 369             ClientToScreen(hwnd, &pt);
 370             SendMessageW( hwnd, WM_CONTEXTMENU, (WPARAM)hwnd, MAKELPARAM(pt.x, pt.y) );
 371         }
 372         break;
 373
 374     case WM_NCRBUTTONUP:
 375         /*
 376          * FIXME : we must NOT send WM_CONTEXTMENU on a WM_NCRBUTTONUP (checked
 377          * in Windows), but what _should_ we do? According to MSDN :
 378          * "If it is appropriate to do so, the system sends the WM_SYSCOMMAND
 379          * message to the window". When is it appropriate?
 380          */
 381         break;
 382
 383     case WM_CONTEXTMENU:
 384         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 385             SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 386         else
 387         {
 388             LONG hitcode;
 389             POINT pt;
 390             WND *wndPtr = WIN_GetPtr( hwnd );
 391             HMENU hMenu = wndPtr->hSysMenu;
 392             WIN_ReleasePtr( wndPtr );
 393             if (!hMenu) return 0;
 394             pt.x = (short)LOWORD(lParam);
 395             pt.y = (short)HIWORD(lParam);
 396             hitcode = NC_HandleNCHitTest(hwnd, pt);
 397
 398             /* Track system popup if click was in the caption area. */
 399             if (hitcode==HTCAPTION || hitcode==HTSYSMENU)
 400                TrackPopupMenu(GetSystemMenu(hwnd, FALSE),
 401                                TPM_LEFTBUTTON | TPM_RIGHTBUTTON,
 402                                pt.x, pt.y, 0, hwnd, NULL);
 403         }
 404         break;
 405
 406     case WM_NCACTIVATE:
 407         return NC_HandleNCActivate( hwnd, wParam );
 408
 409     case WM_NCDESTROY:
 410         {
 411             WND *wndPtr = WIN_GetPtr( hwnd );
 412             if (!wndPtr) return 0;
 413             if (wndPtr->text) HeapFree( GetProcessHeap(), 0, wndPtr->text );
 414             wndPtr->text = NULL;
 415             if (wndPtr->pVScroll) HeapFree( GetProcessHeap(), 0, wndPtr->pVScroll );
 416             if (wndPtr->pHScroll) HeapFree( GetProcessHeap(), 0, wndPtr->pHScroll );
 417             wndPtr->pVScroll = wndPtr->pHScroll = NULL;
 418             WIN_ReleasePtr( wndPtr );
 419             return 0;
 420         }
 421
 422     case WM_PRINT:
 423         DEFWND_Print(hwnd, (HDC)wParam, lParam);
 424         return 0;
 425
 426     case WM_PAINTICON:
 427     case WM_PAINT:
 428         {
 429             PAINTSTRUCT ps;
 430             HDC hdc = BeginPaint( hwnd, &ps );
 431             if( hdc )
 432             {
 433               HICON hIcon;
 434               if (IsIconic(hwnd) && ((hIcon = (HICON)GetClassLongW( hwnd, GCL_HICON))) )
 435               {
 436                   RECT rc;
 437                   int x, y;
 438
 439                   GetClientRect( hwnd, &rc );
 440                   x = (rc.right - rc.left - GetSystemMetrics(SM_CXICON))/2;
 441                   y = (rc.bottom - rc.top - GetSystemMetrics(SM_CYICON))/2;
 442                   TRACE("Painting class icon: vis rect=(%ld,%ld - %ld,%ld)\n",
 443                         ps.rcPaint.left, ps.rcPaint.top, ps.rcPaint.right, ps.rcPaint.bottom );
 444                   DrawIcon( hdc, x, y, hIcon );
 445               }
 446               EndPaint( hwnd, &ps );
 447             }
 448             return 0;
 449         }
 450
 451     case WM_SYNCPAINT:
 452         RedrawWindow ( hwnd, NULL, 0, RDW_ERASENOW | RDW_ERASE | RDW_ALLCHILDREN );
 453         return 0;
 454
 455     case WM_SETREDRAW:
 456         DEFWND_SetRedraw( hwnd, wParam );
 457         return 0;
 458
 459     case WM_CLOSE:
 460         DestroyWindow( hwnd );
 461         return 0;
 462
 463     case WM_MOUSEACTIVATE:
 464         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 465         {
 466             LONG ret = SendMessageW( GetParent(hwnd), WM_MOUSEACTIVATE, wParam, lParam );
 467             if (ret) return ret;
 468         }
 469
 470         /* Caption clicks are handled by the NC_HandleNCLButtonDown() */
 471         return (LOWORD(lParam) >= HTCLIENT) ? MA_ACTIVATE : MA_NOACTIVATE;
 472
 473     case WM_ACTIVATE:
 474         /* The default action in Windows is to set the keyboard focus to
 475          * the window, if it's being activated and not minimized */
 476         if (LOWORD(wParam) != WA_INACTIVE) {
 477             if (!IsIconic(hwnd)) SetFocus(hwnd);
 478         }
 479         break;
 480
 481     case WM_MOUSEWHEEL:
 482         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 483             return SendMessageW( GetParent(hwnd), WM_MOUSEWHEEL, wParam, lParam );
 484         break;
 485
 486     case WM_ERASEBKGND:
 487     case WM_ICONERASEBKGND:
 488         {
 489             RECT rect;
 490             HDC hdc = (HDC)wParam;
 491             HBRUSH hbr = (HBRUSH)GetClassLongW( hwnd, GCL_HBRBACKGROUND );
 492             if (!hbr) return 0;
 493
 494             if (GetClassLongW( hwnd, GCL_STYLE ) & CS_PARENTDC)
 495             {
 496                 /* can't use GetClipBox with a parent DC or we fill the whole parent */
 497                 GetClientRect( hwnd, &rect );
 498                 DPtoLP( hdc, (LPPOINT)&rect, 2 );
 499             }
 500             else GetClipBox( hdc, &rect );
 501             FillRect( hdc, &rect, hbr );
 502             return 1;
 503         }
 504
 505     case WM_GETDLGCODE:
 506         return 0;
 507
 508     case WM_CTLCOLORMSGBOX:
 509     case WM_CTLCOLOREDIT:
 510     case WM_CTLCOLORLISTBOX:
 511     case WM_CTLCOLORBTN:
 512     case WM_CTLCOLORDLG:
 513     case WM_CTLCOLORSTATIC:
 514     case WM_CTLCOLORSCROLLBAR:
 515         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, msg - WM_CTLCOLORMSGBOX );
 516
 517     case WM_CTLCOLOR:
 518         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, HIWORD(lParam) );
 519
 520     case WM_SETCURSOR:
 521         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 522         {
 523             /* with the exception of the border around a resizable wnd,
 524              * give the parent first chance to set the cursor */
 525             if ((LOWORD(lParam) < HTSIZEFIRST) || (LOWORD(lParam) > HTSIZELAST))
 526             {
 527                 if (SendMessageW(GetParent(hwnd), WM_SETCURSOR, wParam, lParam)) return TRUE;
 528             }
 529         }
 530         NC_HandleSetCursor( hwnd, wParam, lParam );
 531         break;
 532
 533     case WM_SYSCOMMAND:
 534         return NC_HandleSysCommand( hwnd, wParam, lParam );
 535
 536     case WM_KEYDOWN:
 537         if(wParam == VK_F10) iF10Key = VK_F10;
 538         break;
 539
 540     case WM_SYSKEYDOWN:
 541         if( HIWORD(lParam) & KEYDATA_ALT )
 542         {
 543             /* if( HIWORD(lParam) & ~KEYDATA_PREVSTATE ) */
 544               if( wParam == VK_MENU && !iMenuSysKey )
 545                 iMenuSysKey = 1;
 546               else
 547                 iMenuSysKey = 0;
 548
 549             iF10Key = 0;
 550
 551             if( wParam == VK_F4 )       /* try to close the window */
 552             {
 553                 HWND top = GetAncestor( hwnd, GA_ROOT );
 554                 if (!(GetClassLongW( top, GCL_STYLE ) & CS_NOCLOSE))
 555                     PostMessageW( top, WM_SYSCOMMAND, SC_CLOSE, 0 );
 556             }
 557         }
 558         else if( wParam == VK_F10 )
 559                 iF10Key = 1;
 560              else
 561                 if( wParam == VK_ESCAPE && (GetKeyState(VK_SHIFT) & 0x8000))
 562                     SendMessageW( hwnd, WM_SYSCOMMAND, SC_KEYMENU, VK_SPACE );
 563         break;
 564
 565     case WM_KEYUP:
 566     case WM_SYSKEYUP:
 567         /* Press and release F10 or ALT */
 568         if (((wParam == VK_MENU) && iMenuSysKey) ||
 569             ((wParam == VK_F10) && iF10Key))
 570               SendMessageW( GetAncestor( hwnd, GA_ROOT ), WM_SYSCOMMAND, SC_KEYMENU, 0L );
 571         iMenuSysKey = iF10Key = 0;
 572         break;
 573
 574     case WM_SYSCHAR:
 575         iMenuSysKey = 0;
 576         if (wParam == VK_RETURN && IsIconic(hwnd))
 577         {
 578             PostMessageW( hwnd, WM_SYSCOMMAND, SC_RESTORE, 0L );
 579             break;
 580         }
 581         if ((HIWORD(lParam) & KEYDATA_ALT) && wParam)
 582         {
 583             if (wParam == VK_TAB || wParam == VK_ESCAPE) break;
 584             if (wParam == VK_SPACE && (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD))
 585                 SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 586             else
 587                 SendMessageW( hwnd, WM_SYSCOMMAND, SC_KEYMENU, wParam );
 588         }
 589         else /* check for Ctrl-Esc */
 590             if (wParam != VK_ESCAPE) MessageBeep(0);
 591         break;
 592
 593     case WM_SHOWWINDOW:
 594         {
 595             LONG style = GetWindowLongW( hwnd, GWL_STYLE );
 596             if (!lParam) return 0; /* sent from ShowWindow */
 597             if (!(style & WS_POPUP)) return 0;
 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             ShowWindow( hwnd, wParam ? SW_SHOWNOACTIVATE : SW_HIDE );
 602             break;
 603         }
 604
 605     case WM_CANCELMODE:
 606         if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) EndMenu();
 607         if (GetCapture() == hwnd) ReleaseCapture();
 608         break;
 609
 610     case WM_VKEYTOITEM:
 611     case WM_CHARTOITEM:
 612         return -1;
 613
 614     case WM_DROPOBJECT:
 615         return DRAG_FILE;
 616
 617     case WM_QUERYDROPOBJECT:
 618         return (GetWindowLongA( hwnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES) != 0;
 619
 620     case WM_QUERYDRAGICON:
 621         {
 622             UINT len;
 623
 624             HICON hIcon = (HICON)GetClassLongW( hwnd, GCL_HICON );
 625             HINSTANCE instance = (HINSTANCE)GetWindowLongW( hwnd, GWL_HINSTANCE );
 626             if (hIcon) return (LRESULT)hIcon;
 627             for(len=1; len<64; len++)
 628                 if((hIcon = LoadIconW(instance, MAKEINTRESOURCEW(len))))
 629                     return (LRESULT)hIcon;
 630             return (LRESULT)LoadIconW(0, (LPWSTR)IDI_APPLICATION);
 631         }
 632         break;
 633
 634     case WM_ISACTIVEICON:
 635         {
 636             WND *wndPtr = WIN_GetPtr( hwnd );
 637             BOOL ret = (wndPtr->flags & WIN_NCACTIVATED) != 0;
 638             WIN_ReleasePtr( wndPtr );
 639             return ret;
 640         }
 641
 642     case WM_NOTIFYFORMAT:
 643       if (IsWindowUnicode(hwnd)) return NFR_UNICODE;
 644       else return NFR_ANSI;
 645
 646     case WM_QUERYOPEN:
 647     case WM_QUERYENDSESSION:
 648         return 1;
 649
 650     case WM_SETICON:
 651         if (USER_Driver.pSetWindowIcon)
 652             return (LRESULT)USER_Driver.pSetWindowIcon( hwnd, (HICON)lParam, (wParam != ICON_SMALL) );
 653         else
 654         {
 655             HICON hOldIcon = (HICON)SetClassLongW( hwnd, (wParam != ICON_SMALL) ? GCL_HICON : GCL_HICONSM,
 656                                             lParam);
 657             SetWindowPos(hwnd, 0, 0, 0, 0, 0, SWP_FRAMECHANGED | SWP_NOSIZE |
 658                          SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOZORDER);
 659             return (LRESULT)hOldIcon;
 660         }
 661
 662     case WM_GETICON:
 663         return GetClassLongW( hwnd, (wParam != ICON_SMALL) ? GCL_HICON : GCL_HICONSM );
 664
 665     case WM_HELP:
 666         SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 667         break;
 668     }
 669
 670     return 0;
 671 }
 672
 673
 674
 675 /***********************************************************************
 676  *              DefWindowProc (USER.107)
 677  */
 678 LRESULT WINAPI DefWindowProc16( HWND16 hwnd16, UINT16 msg, WPARAM16 wParam,
 679                                 LPARAM lParam )
 680 {
 681     LRESULT result = 0;
 682     HWND hwnd = WIN_Handle32( hwnd16 );
 683
 684     if (!WIN_IsCurrentProcess( hwnd ))
 685     {
 686         if (!IsWindow( hwnd )) return 0;
 687         ERR( "called for other process window %p\n", hwnd );
 688         return 0;
 689     }
 690     SPY_EnterMessage( SPY_DEFWNDPROC16, hwnd, msg, wParam, lParam );
 691
 692     switch(msg)
 693     {
 694     case WM_NCCREATE:
 695         {
 696             CREATESTRUCT16 *cs = MapSL(lParam);
 697             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 698              * may have child window IDs instead of window name */
 699             if (HIWORD(cs->lpszName))
 700                 DEFWND_SetTextA( hwnd, MapSL(cs->lpszName) );
 701             result = 1;
 702         }
 703         break;
 704
 705     case WM_NCCALCSIZE:
 706         {
 707             RECT rect32;
 708             CONV_RECT16TO32( MapSL(lParam), &rect32 );
 709             result = NC_HandleNCCalcSize( hwnd, &rect32 );
 710             CONV_RECT32TO16( &rect32, MapSL(lParam) );
 711         }
 712         break;
 713
 714     case WM_WINDOWPOSCHANGING:
 715         result = WINPOS_HandleWindowPosChanging16( hwnd, MapSL(lParam) );
 716         break;
 717
 718     case WM_WINDOWPOSCHANGED:
 719         {
 720             WINDOWPOS16 * winPos = MapSL(lParam);
 721             DEFWND_HandleWindowPosChanged( hwnd, winPos->flags );
 722         }
 723         break;
 724
 725     case WM_GETTEXT:
 726     case WM_SETTEXT:
 727         result = DefWindowProcA( hwnd, msg, wParam, (LPARAM)MapSL(lParam) );
 728         break;
 729
 730     default:
 731         result = DefWindowProcA( hwnd, msg, wParam, lParam );
 732         break;
 733     }
 734
 735     SPY_ExitMessage( SPY_RESULT_DEFWND16, hwnd, msg, result, wParam, lParam );
 736     return result;
 737 }
 738
 739
 740 /***********************************************************************
 741  *              DefWindowProcA (USER32.@)
 742  *
 743  */
 744 LRESULT WINAPI DefWindowProcA( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
 745 {
 746     LRESULT result = 0;
 747     HWND full_handle;
 748
 749     if (!(full_handle = WIN_IsCurrentProcess( hwnd )))
 750     {
 751         if (!IsWindow( hwnd )) return 0;
 752         ERR( "called for other process window %p\n", hwnd );
 753         return 0;
 754     }
 755     hwnd = full_handle;
 756
 757     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
 758
 759     switch(msg)
 760     {
 761     case WM_NCCREATE:
 762         {
 763             CREATESTRUCTA *cs = (CREATESTRUCTA *)lParam;
 764             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 765              * may have child window IDs instead of window name */
 766             if (HIWORD(cs->lpszName))
 767                 DEFWND_SetTextA( hwnd, cs->lpszName );
 768             result = 1;
 769         }
 770         break;
 771
 772     case WM_NCCALCSIZE:
 773         result = NC_HandleNCCalcSize( hwnd, (RECT *)lParam );
 774         break;
 775
 776     case WM_WINDOWPOSCHANGING:
 777         result = WINPOS_HandleWindowPosChanging( hwnd, (WINDOWPOS *)lParam );
 778         break;
 779
 780     case WM_WINDOWPOSCHANGED:
 781         {
 782             WINDOWPOS * winPos = (WINDOWPOS *)lParam;
 783             DEFWND_HandleWindowPosChanged( hwnd, winPos->flags );
 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             if (wndPtr->text)
 805             {
 806                 if (!WideCharToMultiByte( CP_ACP, 0, wndPtr->text, -1,
 807                                           dest, wParam, NULL, NULL )) dest[wParam-1] = 0;
 808                 result = strlen( dest );
 809             }
 810             else dest[0] = '\0';
 811             WIN_ReleasePtr( wndPtr );
 812         }
 813         break;
 814
 815     case WM_SETTEXT:
 816         DEFWND_SetTextA( hwnd, (LPCSTR)lParam );
 817         if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
 818             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 819         result = 1; /* success. FIXME: check text length */
 820         break;
 821
 822     /* for far east users (IMM32) - <hidenori@a2.ctktv.ne.jp> */
 823     case WM_IME_CHAR:
 824         {
 825             CHAR    chChar1 = (CHAR)( (wParam>>8) & 0xff );
 826             CHAR    chChar2 = (CHAR)( wParam & 0xff );
 827
 828             SendMessageA( hwnd, WM_CHAR, (WPARAM)chChar1, lParam );
 829             if ( IsDBCSLeadByte( chChar1 ) )
 830                 SendMessageA( hwnd, WM_CHAR, (WPARAM)chChar2, lParam );
 831         }
 832         break;
 833     case WM_IME_KEYDOWN:
 834         result = SendMessageA( hwnd, WM_KEYDOWN, wParam, lParam );
 835         break;
 836     case WM_IME_KEYUP:
 837         result = SendMessageA( hwnd, WM_KEYUP, wParam, lParam );
 838         break;
 839
 840     case WM_IME_STARTCOMPOSITION:
 841     case WM_IME_COMPOSITION:
 842     case WM_IME_ENDCOMPOSITION:
 843     case WM_IME_SELECT:
 844         {
 845             HWND hwndIME;
 846
 847             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 848             if (hwndIME)
 849                 result = SendMessageA( hwndIME, msg, wParam, lParam );
 850         }
 851         break;
 852     case WM_IME_SETCONTEXT:
 853         {
 854             HWND hwndIME;
 855
 856             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 857             if (hwndIME)
 858                 result = DEFWND_ImmIsUIMessageA( hwndIME, msg, wParam, lParam );
 859         }
 860         break;
 861
 862     default:
 863         result = DEFWND_DefWinProc( hwnd, msg, wParam, lParam );
 864         break;
 865     }
 866
 867     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
 868     return result;
 869 }
 870
 871
 872 /***********************************************************************
 873  *              DefWindowProcW (USER32.@) Calls default window message handler
 874  *
 875  * Calls default window procedure for messages not processed
 876  *  by application.
 877  *
 878  *  RETURNS
 879  *     Return value is dependent upon the message.
 880 */
 881 LRESULT WINAPI DefWindowProcW(
 882     HWND hwnd,      /* [in] window procedure receiving message */
 883     UINT msg,       /* [in] message identifier */
 884     WPARAM wParam,  /* [in] first message parameter */
 885     LPARAM lParam )   /* [in] second message parameter */
 886 {
 887     LRESULT result = 0;
 888     HWND full_handle;
 889
 890     if (!(full_handle = WIN_IsCurrentProcess( hwnd )))
 891     {
 892         if (!IsWindow( hwnd )) return 0;
 893         ERR( "called for other process window %p\n", hwnd );
 894         return 0;
 895     }
 896     hwnd = full_handle;
 897     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
 898
 899     switch(msg)
 900     {
 901     case WM_NCCREATE:
 902         {
 903             CREATESTRUCTW *cs = (CREATESTRUCTW *)lParam;
 904             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 905              * may have child window IDs instead of window name */
 906             if (HIWORD(cs->lpszName))
 907                 DEFWND_SetTextW( hwnd, cs->lpszName );
 908             result = 1;
 909         }
 910         break;
 911
 912     case WM_NCCALCSIZE:
 913         result = NC_HandleNCCalcSize( hwnd, (RECT *)lParam );
 914         break;
 915
 916     case WM_WINDOWPOSCHANGING:
 917         result = WINPOS_HandleWindowPosChanging( hwnd, (WINDOWPOS *)lParam );
 918         break;
 919
 920     case WM_WINDOWPOSCHANGED:
 921         {
 922             WINDOWPOS * winPos = (WINDOWPOS *)lParam;
 923             DEFWND_HandleWindowPosChanged( hwnd, winPos->flags );
 924         }
 925         break;
 926
 927     case WM_GETTEXTLENGTH:
 928         {
 929             WND *wndPtr = WIN_GetPtr( hwnd );
 930             if (wndPtr && wndPtr->text) result = (LRESULT)strlenW(wndPtr->text);
 931             WIN_ReleasePtr( wndPtr );
 932         }
 933         break;
 934
 935     case WM_GETTEXT:
 936         if (wParam)
 937         {
 938             LPWSTR dest = (LPWSTR)lParam;
 939             WND *wndPtr = WIN_GetPtr( hwnd );
 940
 941             if (!wndPtr) break;
 942             if (wndPtr->text)
 943             {
 944                 lstrcpynW( dest, wndPtr->text, wParam );
 945                 result = strlenW( dest );
 946             }
 947             else dest[0] = '\0';
 948             WIN_ReleasePtr( wndPtr );
 949         }
 950         break;
 951
 952     case WM_SETTEXT:
 953         DEFWND_SetTextW( hwnd, (LPCWSTR)lParam );
 954         if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
 955             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 956         result = 1; /* success. FIXME: check text length */
 957         break;
 958
 959     /* for far east users (IMM32) - <hidenori@a2.ctktv.ne.jp> */
 960     case WM_IME_CHAR:
 961         SendMessageW( hwnd, WM_CHAR, wParam, lParam );
 962         break;
 963     case WM_IME_SETCONTEXT:
 964         {
 965             HWND hwndIME;
 966
 967             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 968             if (hwndIME)
 969                 result = DEFWND_ImmIsUIMessageW( hwndIME, msg, wParam, lParam );
 970         }
 971         break;
 972
 973     default:
 974         result = DEFWND_DefWinProc( hwnd, msg, wParam, lParam );
 975         break;
 976     }
 977     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
 978     return result;
 979 }