windows/defwnd.c

   1 /*
   2  * Default window procedure
   3  *
   4  * Copyright 1993, 1996 Alexandre Julliard
   5  *           1995 Alex Korobka
   6  */
   7
   8 #include <string.h>
   9
  10 #include "win.h"
  11 #include "user.h"
  12 #include "nonclient.h"
  13 #include "winpos.h"
  14 #include "dce.h"
  15 #include "debugtools.h"
  16 #include "spy.h"
  17 #include "windef.h"
  18 #include "wingdi.h"
  19 #include "winnls.h"
  20 #include "wine/unicode.h"
  21 #include "wine/winuser16.h"
  22 #include "imm.h"
  23
  24 DEFAULT_DEBUG_CHANNEL(win);
  25
  26   /* bits in the dwKeyData */
  27 #define KEYDATA_ALT             0x2000
  28 #define KEYDATA_PREVSTATE       0x4000
  29
  30 static short iF10Key = 0;
  31 static short iMenuSysKey = 0;
  32
  33 /***********************************************************************
  34  *           DEFWND_HandleWindowPosChanged
  35  *
  36  * Handle the WM_WINDOWPOSCHANGED message.
  37  */
  38 static void DEFWND_HandleWindowPosChanged( HWND hwnd, UINT flags )
  39 {
  40     RECT rect;
  41     WND *wndPtr = WIN_FindWndPtr( hwnd );
  42
  43     rect = wndPtr->rectClient;
  44     WIN_ReleaseWndPtr( wndPtr );
  45
  46     if (!(flags & SWP_NOCLIENTMOVE))
  47         SendMessageW( hwnd, WM_MOVE, 0, MAKELONG(rect.left, rect.top));
  48
  49     if (!(flags & SWP_NOCLIENTSIZE))
  50     {
  51         WPARAM wp = SIZE_RESTORED;
  52         if (IsZoomed(hwnd)) wp = SIZE_MAXIMIZED;
  53         else if (IsIconic(hwnd)) wp = SIZE_MINIMIZED;
  54
  55         SendMessageW( hwnd, WM_SIZE, wp, MAKELONG(rect.right-rect.left, rect.bottom-rect.top) );
  56     }
  57 }
  58
  59
  60 /***********************************************************************
  61  *           DEFWND_SetTextA
  62  *
  63  * Set the window text.
  64  */
  65 static void DEFWND_SetTextA( HWND hwnd, LPCSTR text )
  66 {
  67     int count;
  68     WCHAR *textW;
  69     WND *wndPtr;
  70
  71     if (!text) text = "";
  72     count = MultiByteToWideChar( CP_ACP, 0, text, -1, NULL, 0 );
  73
  74     if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return;
  75     if (wndPtr->text) HeapFree(GetProcessHeap(), 0, wndPtr->text);
  76     if ((wndPtr->text = textW = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR))))
  77         MultiByteToWideChar( CP_ACP, 0, text, -1, wndPtr->text, count );
  78     else
  79         ERR("Not enough memory for window text\n");
  80     WIN_ReleaseWndPtr( wndPtr );
  81
  82     if (USER_Driver.pSetWindowText) USER_Driver.pSetWindowText( hwnd, textW );
  83 }
  84
  85 /***********************************************************************
  86  *           DEFWND_SetTextW
  87  *
  88  * Set the window text.
  89  */
  90 static void DEFWND_SetTextW( HWND hwnd, LPCWSTR text )
  91 {
  92     static const WCHAR empty_string[] = {0};
  93     WND *wndPtr;
  94     int count;
  95
  96     if (!text) text = empty_string;
  97     count = strlenW(text) + 1;
  98
  99     if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return;
 100     if (wndPtr->text) HeapFree(GetProcessHeap(), 0, wndPtr->text);
 101     if ((wndPtr->text = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR))))
 102         strcpyW( wndPtr->text, text );
 103     else
 104         ERR("Not enough memory for window text\n");
 105     text = wndPtr->text;
 106     WIN_ReleaseWndPtr( wndPtr );
 107
 108     if (USER_Driver.pSetWindowText) USER_Driver.pSetWindowText( hwnd, text );
 109 }
 110
 111 /***********************************************************************
 112  *           DEFWND_ControlColor
 113  *
 114  * Default colors for control painting.
 115  */
 116 HBRUSH DEFWND_ControlColor( HDC hDC, UINT ctlType )
 117 {
 118     if( ctlType == CTLCOLOR_SCROLLBAR)
 119     {
 120         HBRUSH hb = GetSysColorBrush(COLOR_SCROLLBAR);
 121         if (TWEAK_WineLook == WIN31_LOOK) {
 122            SetTextColor( hDC, RGB(0, 0, 0) );
 123            SetBkColor( hDC, RGB(255, 255, 255) );
 124         } else {
 125            COLORREF bk = GetSysColor(COLOR_3DHILIGHT);
 126            SetTextColor( hDC, GetSysColor(COLOR_3DFACE));
 127            SetBkColor( hDC, bk);
 128
 129            /* if COLOR_WINDOW happens to be the same as COLOR_3DHILIGHT
 130             * we better use 0x55aa bitmap brush to make scrollbar's background
 131             * look different from the window background.
 132             */
 133            if (bk == GetSysColor(COLOR_WINDOW)) {
 134                return CACHE_GetPattern55AABrush();
 135            }
 136         }
 137         UnrealizeObject( hb );
 138         return hb;
 139     }
 140
 141     SetTextColor( hDC, GetSysColor(COLOR_WINDOWTEXT));
 142
 143     if (TWEAK_WineLook > WIN31_LOOK) {
 144         if ((ctlType == CTLCOLOR_EDIT) || (ctlType == CTLCOLOR_LISTBOX))
 145             SetBkColor( hDC, GetSysColor(COLOR_WINDOW) );
 146         else {
 147             SetBkColor( hDC, GetSysColor(COLOR_3DFACE) );
 148             return GetSysColorBrush(COLOR_3DFACE);
 149         }
 150     }
 151     else
 152         SetBkColor( hDC, GetSysColor(COLOR_WINDOW) );
 153     return GetSysColorBrush(COLOR_WINDOW);
 154 }
 155
 156
 157 /***********************************************************************
 158  *           DEFWND_SetRedraw
 159  */
 160 static void DEFWND_SetRedraw( HWND hwnd, WPARAM wParam )
 161 {
 162     WND *wndPtr = WIN_FindWndPtr( hwnd );
 163     BOOL bVisible = wndPtr->dwStyle & WS_VISIBLE;
 164
 165     TRACE("%04x %i\n", hwnd, (wParam!=0) );
 166
 167     if( wParam )
 168     {
 169         if( !bVisible )
 170         {
 171             wndPtr->dwStyle |= WS_VISIBLE;
 172             if (USER_Driver.pSetWindowStyle)
 173                 USER_Driver.pSetWindowStyle( hwnd, wndPtr->dwStyle & ~WS_VISIBLE );
 174             DCE_InvalidateDCE( hwnd, &wndPtr->rectWindow );
 175         }
 176     }
 177     else if( bVisible )
 178     {
 179         if( wndPtr->dwStyle & WS_MINIMIZE ) wParam = RDW_VALIDATE;
 180         else wParam = RDW_ALLCHILDREN | RDW_VALIDATE;
 181
 182         RedrawWindow( hwnd, NULL, 0, wParam );
 183         DCE_InvalidateDCE( hwnd, &wndPtr->rectWindow );
 184         wndPtr->dwStyle &= ~WS_VISIBLE;
 185         if (USER_Driver.pSetWindowStyle)
 186             USER_Driver.pSetWindowStyle( hwnd, wndPtr->dwStyle | WS_VISIBLE );
 187     }
 188     WIN_ReleaseWndPtr( wndPtr );
 189 }
 190
 191 /***********************************************************************
 192  *           DEFWND_Print
 193  *
 194  * This method handles the default behavior for the WM_PRINT message.
 195  */
 196 static void DEFWND_Print( HWND hwnd, HDC hdc, ULONG uFlags)
 197 {
 198   /*
 199    * Visibility flag.
 200    */
 201   if ( (uFlags & PRF_CHECKVISIBLE) &&
 202        !IsWindowVisible(hwnd) )
 203       return;
 204
 205   /*
 206    * Unimplemented flags.
 207    */
 208   if ( (uFlags & PRF_CHILDREN) ||
 209        (uFlags & PRF_OWNED)    ||
 210        (uFlags & PRF_NONCLIENT) )
 211   {
 212     WARN("WM_PRINT message with unsupported flags\n");
 213   }
 214
 215   /*
 216    * Background
 217    */
 218   if ( uFlags & PRF_ERASEBKGND)
 219     SendMessageW(hwnd, WM_ERASEBKGND, (WPARAM)hdc, 0);
 220
 221   /*
 222    * Client area
 223    */
 224   if ( uFlags & PRF_CLIENT)
 225     SendMessageW(hwnd, WM_PRINTCLIENT, (WPARAM)hdc, PRF_CLIENT);
 226 }
 227
 228
 229 /*
 230  * helpers for calling IMM32
 231  *
 232  * WM_IME_* messages are generated only by IMM32,
 233  * so I assume imm32 is already LoadLibrary-ed.
 234  */
 235 static HWND DEFWND_ImmGetDefaultIMEWnd( HWND hwnd )
 236 {
 237     HINSTANCE hInstIMM = GetModuleHandleA( "imm32" );
 238     HWND WINAPI (*pFunc)(HWND);
 239     HWND hwndRet = 0;
 240
 241     if (!hInstIMM)
 242     {
 243         ERR( "cannot get IMM32 handle\n" );
 244         return 0;
 245     }
 246
 247     pFunc = (void*)GetProcAddress(hInstIMM,"ImmGetDefaultIMEWnd");
 248     if ( pFunc != NULL )
 249         hwndRet = (*pFunc)( hwnd );
 250
 251     return hwndRet;
 252 }
 253
 254 static BOOL DEFWND_ImmIsUIMessageA( HWND hwndIME, UINT msg, WPARAM wParam, LPARAM lParam )
 255 {
 256     HINSTANCE hInstIMM = GetModuleHandleA( "imm32" );
 257     BOOL WINAPI (*pFunc)(HWND,UINT,WPARAM,LPARAM);
 258     BOOL fRet = FALSE;
 259
 260     if (!hInstIMM)
 261     {
 262         ERR( "cannot get IMM32 handle\n" );
 263         return FALSE;
 264     }
 265
 266     pFunc = (void*)GetProcAddress(hInstIMM,"ImmIsUIMessageA");
 267     if ( pFunc != NULL )
 268         fRet = (*pFunc)( hwndIME, msg, wParam, lParam );
 269
 270     return fRet;
 271 }
 272
 273 static BOOL DEFWND_ImmIsUIMessageW( HWND hwndIME, UINT msg, WPARAM wParam, LPARAM lParam )
 274 {
 275     HINSTANCE hInstIMM = GetModuleHandleA( "imm32" );
 276     BOOL WINAPI (*pFunc)(HWND,UINT,WPARAM,LPARAM);
 277     BOOL fRet = FALSE;
 278
 279     if (!hInstIMM)
 280     {
 281         ERR( "cannot get IMM32 handle\n" );
 282         return FALSE;
 283     }
 284
 285     pFunc = (void*)GetProcAddress(hInstIMM,"ImmIsUIMessageW");
 286     if ( pFunc != NULL )
 287         fRet = (*pFunc)( hwndIME, msg, wParam, lParam );
 288
 289     return fRet;
 290 }
 291
 292
 293
 294 /***********************************************************************
 295  *           DEFWND_DefWinProc
 296  *
 297  * Default window procedure for messages that are the same in Win16 and Win32.
 298  */
 299 static LRESULT DEFWND_DefWinProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
 300 {
 301     switch(msg)
 302     {
 303     case WM_NCPAINT:
 304         return NC_HandleNCPaint( hwnd, (HRGN)wParam );
 305
 306     case WM_NCHITTEST:
 307         {
 308             POINT pt;
 309             pt.x = SLOWORD(lParam);
 310             pt.y = SHIWORD(lParam);
 311             return NC_HandleNCHitTest( hwnd, pt );
 312         }
 313
 314     case WM_NCLBUTTONDOWN:
 315         return NC_HandleNCLButtonDown( hwnd, wParam, lParam );
 316
 317     case WM_LBUTTONDBLCLK:
 318     case WM_NCLBUTTONDBLCLK:
 319         return NC_HandleNCLButtonDblClk( hwnd, wParam, lParam );
 320
 321     case WM_NCRBUTTONDOWN:
 322         /* in Windows, capture is taken when right-clicking on the caption bar */
 323         if (wParam==HTCAPTION)
 324         {
 325             SetCapture(hwnd);
 326         }
 327         break;
 328
 329     case WM_RBUTTONUP:
 330         {
 331             POINT pt;
 332
 333             if (hwnd == GetCapture())
 334                 /* release capture if we took it on WM_NCRBUTTONDOWN */
 335                 ReleaseCapture();
 336
 337             pt.x = SLOWORD(lParam);
 338             pt.y = SHIWORD(lParam);
 339             ClientToScreen(hwnd, &pt);
 340             SendMessageW( hwnd, WM_CONTEXTMENU, (WPARAM)hwnd, MAKELPARAM(pt.x, pt.y) );
 341         }
 342         break;
 343
 344     case WM_NCRBUTTONUP:
 345         /*
 346          * FIXME : we must NOT send WM_CONTEXTMENU on a WM_NCRBUTTONUP (checked
 347          * in Windows), but what _should_ we do? According to MSDN :
 348          * "If it is appropriate to do so, the system sends the WM_SYSCOMMAND
 349          * message to the window". When is it appropriate?
 350          */
 351         break;
 352
 353     case WM_CONTEXTMENU:
 354         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 355             SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 356         else
 357         {
 358             LONG hitcode;
 359             POINT pt;
 360             WND *wndPtr = WIN_FindWndPtr( hwnd );
 361             HMENU hMenu = wndPtr->hSysMenu;
 362             WIN_ReleaseWndPtr( wndPtr );
 363             if (!hMenu) return 0;
 364             pt.x = SLOWORD(lParam);
 365             pt.y = SHIWORD(lParam);
 366             hitcode = NC_HandleNCHitTest(hwnd, pt);
 367
 368             /* Track system popup if click was in the caption area. */
 369             if (hitcode==HTCAPTION || hitcode==HTSYSMENU)
 370                TrackPopupMenu(GetSystemMenu(hwnd, FALSE),
 371                                TPM_LEFTBUTTON | TPM_RIGHTBUTTON,
 372                                pt.x, pt.y, 0, hwnd, NULL);
 373         }
 374         break;
 375
 376     case WM_NCACTIVATE:
 377         return NC_HandleNCActivate( hwnd, wParam );
 378
 379     case WM_NCDESTROY:
 380         {
 381             WND *wndPtr = WIN_FindWndPtr( hwnd );
 382             if (!wndPtr) return 0;
 383             if (wndPtr->text) HeapFree( GetProcessHeap(), 0, wndPtr->text );
 384             wndPtr->text = NULL;
 385             if (wndPtr->pVScroll) HeapFree( GetProcessHeap(), 0, wndPtr->pVScroll );
 386             if (wndPtr->pHScroll) HeapFree( GetProcessHeap(), 0, wndPtr->pHScroll );
 387             wndPtr->pVScroll = wndPtr->pHScroll = NULL;
 388             WIN_ReleaseWndPtr( wndPtr );
 389             return 0;
 390         }
 391
 392     case WM_PRINT:
 393         DEFWND_Print(hwnd, (HDC)wParam, lParam);
 394         return 0;
 395
 396     case WM_PAINTICON:
 397     case WM_PAINT:
 398         {
 399             PAINTSTRUCT ps;
 400             HDC hdc = BeginPaint( hwnd, &ps );
 401             if( hdc )
 402             {
 403               HICON hIcon;
 404               if (IsIconic(hwnd) && ((hIcon = GetClassLongW( hwnd, GCL_HICON))) )
 405               {
 406                   RECT rc;
 407                   int x, y;
 408
 409                   GetClientRect( hwnd, &rc );
 410                   x = (rc.right - rc.left - GetSystemMetrics(SM_CXICON))/2;
 411                   y = (rc.bottom - rc.top - GetSystemMetrics(SM_CYICON))/2;
 412                   TRACE("Painting class icon: vis rect=(%i,%i - %i,%i)\n",
 413                         ps.rcPaint.left, ps.rcPaint.top, ps.rcPaint.right, ps.rcPaint.bottom );
 414                   DrawIcon( hdc, x, y, hIcon );
 415               }
 416               EndPaint( hwnd, &ps );
 417             }
 418             return 0;
 419         }
 420
 421     case WM_SYNCPAINT:
 422         RedrawWindow ( hwnd, NULL, 0, RDW_ERASENOW | RDW_ERASE | RDW_ALLCHILDREN );
 423         return 0;
 424
 425     case WM_SETREDRAW:
 426         DEFWND_SetRedraw( hwnd, wParam );
 427         return 0;
 428
 429     case WM_CLOSE:
 430         DestroyWindow( hwnd );
 431         return 0;
 432
 433     case WM_MOUSEACTIVATE:
 434         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 435         {
 436             LONG ret = SendMessageW( GetParent(hwnd), WM_MOUSEACTIVATE, wParam, lParam );
 437             if (ret) return ret;
 438         }
 439
 440         /* Caption clicks are handled by the NC_HandleNCLButtonDown() */
 441         return (LOWORD(lParam) >= HTCLIENT) ? MA_ACTIVATE : MA_NOACTIVATE;
 442
 443     case WM_ACTIVATE:
 444         /* The default action in Windows is to set the keyboard focus to
 445          * the window, if it's being activated and not minimized */
 446         if (LOWORD(wParam) != WA_INACTIVE) {
 447             if (!IsIconic(hwnd)) SetFocus(hwnd);
 448         }
 449         break;
 450
 451     case WM_MOUSEWHEEL:
 452         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 453             return SendMessageW( GetParent(hwnd), WM_MOUSEWHEEL, wParam, lParam );
 454         break;
 455
 456     case WM_ERASEBKGND:
 457     case WM_ICONERASEBKGND:
 458         {
 459             RECT rect;
 460             HDC hdc = (HDC)wParam;
 461             HBRUSH hbr = GetClassLongW( hwnd, GCL_HBRBACKGROUND );
 462             if (!hbr) return 0;
 463
 464             if (GetClassLongW( hwnd, GCL_STYLE ) & CS_PARENTDC)
 465             {
 466                 /* can't use GetClipBox with a parent DC or we fill the whole parent */
 467                 GetClientRect( hwnd, &rect );
 468                 DPtoLP( hdc, (LPPOINT)&rect, 2 );
 469             }
 470             else GetClipBox( hdc, &rect );
 471             FillRect( hdc, &rect, hbr );
 472             return 1;
 473         }
 474
 475     case WM_GETDLGCODE:
 476         return 0;
 477
 478     case WM_CTLCOLORMSGBOX:
 479     case WM_CTLCOLOREDIT:
 480     case WM_CTLCOLORLISTBOX:
 481     case WM_CTLCOLORBTN:
 482     case WM_CTLCOLORDLG:
 483     case WM_CTLCOLORSTATIC:
 484     case WM_CTLCOLORSCROLLBAR:
 485         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, msg - WM_CTLCOLORMSGBOX );
 486
 487     case WM_CTLCOLOR:
 488         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, HIWORD(lParam) );
 489
 490     case WM_SETCURSOR:
 491         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 492         {
 493             /* with the exception of the border around a resizable wnd,
 494              * give the parent first chance to set the cursor */
 495             if ((LOWORD(lParam) < HTSIZEFIRST) || (LOWORD(lParam) > HTSIZELAST))
 496             {
 497                 if (SendMessageW(GetParent(hwnd), WM_SETCURSOR, wParam, lParam)) return TRUE;
 498             }
 499         }
 500         return NC_HandleSetCursor( hwnd, wParam, lParam );
 501
 502     case WM_SYSCOMMAND:
 503         {
 504             POINT pt;
 505             pt.x = SLOWORD(lParam);
 506             pt.y = SHIWORD(lParam);
 507             return NC_HandleSysCommand( hwnd, wParam, pt );
 508         }
 509
 510     case WM_KEYDOWN:
 511         if(wParam == VK_F10) iF10Key = VK_F10;
 512         break;
 513
 514     case WM_SYSKEYDOWN:
 515         if( HIWORD(lParam) & KEYDATA_ALT )
 516         {
 517             /* if( HIWORD(lParam) & ~KEYDATA_PREVSTATE ) */
 518               if( wParam == VK_MENU && !iMenuSysKey )
 519                 iMenuSysKey = 1;
 520               else
 521                 iMenuSysKey = 0;
 522
 523             iF10Key = 0;
 524
 525             if( wParam == VK_F4 )       /* try to close the window */
 526             {
 527                 HWND top = GetAncestor( hwnd, GA_ROOT );
 528                 if (!(GetClassLongW( top, GCL_STYLE ) & CS_NOCLOSE))
 529                     PostMessageW( top, WM_SYSCOMMAND, SC_CLOSE, 0 );
 530             }
 531         }
 532         else if( wParam == VK_F10 )
 533                 iF10Key = 1;
 534              else
 535                 if( wParam == VK_ESCAPE && (GetKeyState(VK_SHIFT) & 0x8000))
 536                     SendMessageW( hwnd, WM_SYSCOMMAND, SC_KEYMENU, VK_SPACE );
 537         break;
 538
 539     case WM_KEYUP:
 540     case WM_SYSKEYUP:
 541         /* Press and release F10 or ALT */
 542         if (((wParam == VK_MENU) && iMenuSysKey) ||
 543             ((wParam == VK_F10) && iF10Key))
 544               SendMessageW( GetAncestor( hwnd, GA_ROOT ), WM_SYSCOMMAND, SC_KEYMENU, 0L );
 545         iMenuSysKey = iF10Key = 0;
 546         break;
 547
 548     case WM_SYSCHAR:
 549         iMenuSysKey = 0;
 550         if (wParam == VK_RETURN && IsIconic(hwnd))
 551         {
 552             PostMessageW( hwnd, WM_SYSCOMMAND, SC_RESTORE, 0L );
 553             break;
 554         }
 555         if ((HIWORD(lParam) & KEYDATA_ALT) && wParam)
 556         {
 557             if (wParam == VK_TAB || wParam == VK_ESCAPE) break;
 558             if (wParam == VK_SPACE && (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD))
 559                 SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 560             else
 561                 SendMessageW( hwnd, WM_SYSCOMMAND, SC_KEYMENU, wParam );
 562         }
 563         else /* check for Ctrl-Esc */
 564             if (wParam != VK_ESCAPE) MessageBeep(0);
 565         break;
 566
 567     case WM_SHOWWINDOW:
 568         {
 569             LONG style = GetWindowLongW( hwnd, GWL_STYLE );
 570             if (!lParam) return 0; /* sent from ShowWindow */
 571             if (!(style & WS_POPUP)) return 0;
 572             if ((style & WS_VISIBLE) && wParam) return 0;
 573             if (!(style & WS_VISIBLE) && !wParam) return 0;
 574             if (!GetWindow( hwnd, GW_OWNER )) return 0;
 575             ShowWindow( hwnd, wParam ? SW_SHOWNOACTIVATE : SW_HIDE );
 576             break;
 577         }
 578
 579     case WM_CANCELMODE:
 580         if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) EndMenu();
 581         if (GetCapture() == hwnd) ReleaseCapture();
 582         break;
 583
 584     case WM_VKEYTOITEM:
 585     case WM_CHARTOITEM:
 586         return -1;
 587
 588     case WM_DROPOBJECT:
 589         return DRAG_FILE;
 590
 591     case WM_QUERYDROPOBJECT:
 592         return (GetWindowLongA( hwnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES) != 0;
 593
 594     case WM_QUERYDRAGICON:
 595         {
 596             UINT len;
 597
 598             HICON hIcon = GetClassLongW( hwnd, GCL_HICON );
 599             HINSTANCE instance = GetWindowLongW( hwnd, GWL_HINSTANCE );
 600             if (hIcon) return hIcon;
 601             for(len=1; len<64; len++)
 602                 if((hIcon = LoadIconW(instance, MAKEINTRESOURCEW(len))))
 603                     return (LRESULT)hIcon;
 604             return (LRESULT)LoadIconW(0, IDI_APPLICATIONW);
 605         }
 606         break;
 607
 608     case WM_ISACTIVEICON:
 609         {
 610             WND *wndPtr = WIN_FindWndPtr( hwnd );
 611             BOOL ret = (wndPtr->flags & WIN_NCACTIVATED) != 0;
 612             WIN_ReleaseWndPtr( wndPtr );
 613             return ret;
 614         }
 615
 616     case WM_NOTIFYFORMAT:
 617       if (IsWindowUnicode(hwnd)) return NFR_UNICODE;
 618       else return NFR_ANSI;
 619
 620     case WM_QUERYOPEN:
 621     case WM_QUERYENDSESSION:
 622         return 1;
 623
 624     case WM_SETICON:
 625         if (USER_Driver.pSetWindowIcon)
 626             return USER_Driver.pSetWindowIcon( hwnd, lParam, (wParam != ICON_SMALL) );
 627         else
 628         {
 629                 int index = (wParam != ICON_SMALL) ? GCL_HICON : GCL_HICONSM;
 630                 HICON hOldIcon = GetClassLongW(hwnd, index);
 631                 SetClassLongW(hwnd, index, lParam);
 632
 633                 SetWindowPos(hwnd, 0, 0, 0, 0, 0, SWP_FRAMECHANGED
 634                          | SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE
 635                          | SWP_NOZORDER);
 636                 return hOldIcon;
 637         }
 638
 639     case WM_GETICON:
 640         {
 641                 int index = (wParam != ICON_SMALL) ? GCL_HICON : GCL_HICONSM;
 642                 return GetClassLongW(hwnd, index);
 643         }
 644
 645     case WM_HELP:
 646         SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 647         break;
 648     }
 649
 650     return 0;
 651 }
 652
 653
 654
 655 /***********************************************************************
 656  *              DefWindowProc (USER.107)
 657  */
 658 LRESULT WINAPI DefWindowProc16( HWND16 hwnd16, UINT16 msg, WPARAM16 wParam,
 659                                 LPARAM lParam )
 660 {
 661     LRESULT result = 0;
 662     HWND hwnd = WIN_Handle32( hwnd16 );
 663
 664     if (!IsWindow( hwnd )) return 0;
 665     SPY_EnterMessage( SPY_DEFWNDPROC16, hwnd, msg, wParam, lParam );
 666
 667     switch(msg)
 668     {
 669     case WM_NCCREATE:
 670         {
 671             CREATESTRUCT16 *cs = MapSL(lParam);
 672             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 673              * may have child window IDs instead of window name */
 674             if (HIWORD(cs->lpszName))
 675                 DEFWND_SetTextA( hwnd, MapSL(cs->lpszName) );
 676             result = 1;
 677         }
 678         break;
 679
 680     case WM_NCCALCSIZE:
 681         {
 682             RECT rect32;
 683             CONV_RECT16TO32( MapSL(lParam), &rect32 );
 684             result = NC_HandleNCCalcSize( hwnd, &rect32 );
 685             CONV_RECT32TO16( &rect32, MapSL(lParam) );
 686         }
 687         break;
 688
 689     case WM_WINDOWPOSCHANGING:
 690         result = WINPOS_HandleWindowPosChanging16( hwnd, MapSL(lParam) );
 691         break;
 692
 693     case WM_WINDOWPOSCHANGED:
 694         {
 695             WINDOWPOS16 * winPos = MapSL(lParam);
 696             DEFWND_HandleWindowPosChanged( hwnd, winPos->flags );
 697         }
 698         break;
 699
 700     case WM_GETTEXT:
 701     case WM_SETTEXT:
 702         result = DefWindowProcA( hwnd, msg, wParam, (LPARAM)MapSL(lParam) );
 703         break;
 704
 705     default:
 706         result = DefWindowProcA( hwnd, msg, wParam, lParam );
 707         break;
 708     }
 709
 710     SPY_ExitMessage( SPY_RESULT_DEFWND16, hwnd, msg, result, wParam, lParam );
 711     return result;
 712 }
 713
 714
 715 /***********************************************************************
 716  *              DefWindowProcA (USER32.@)
 717  *
 718  */
 719 LRESULT WINAPI DefWindowProcA( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
 720 {
 721     LRESULT result = 0;
 722
 723     if (!IsWindow( hwnd )) return 0;
 724     hwnd = WIN_GetFullHandle( hwnd );
 725     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
 726
 727     switch(msg)
 728     {
 729     case WM_NCCREATE:
 730         {
 731             CREATESTRUCTA *cs = (CREATESTRUCTA *)lParam;
 732             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 733              * may have child window IDs instead of window name */
 734             if (HIWORD(cs->lpszName))
 735                 DEFWND_SetTextA( hwnd, cs->lpszName );
 736             result = 1;
 737         }
 738         break;
 739
 740     case WM_NCCALCSIZE:
 741         result = NC_HandleNCCalcSize( hwnd, (RECT *)lParam );
 742         break;
 743
 744     case WM_WINDOWPOSCHANGING:
 745         result = WINPOS_HandleWindowPosChanging( hwnd, (WINDOWPOS *)lParam );
 746         break;
 747
 748     case WM_WINDOWPOSCHANGED:
 749         {
 750             WINDOWPOS * winPos = (WINDOWPOS *)lParam;
 751             DEFWND_HandleWindowPosChanged( hwnd, winPos->flags );
 752         }
 753         break;
 754
 755     case WM_GETTEXTLENGTH:
 756         {
 757             WND *wndPtr = WIN_FindWndPtr( hwnd );
 758             if (wndPtr && wndPtr->text)
 759                 result = WideCharToMultiByte( CP_ACP, 0, wndPtr->text, strlenW(wndPtr->text),
 760                                               NULL, 0, NULL, NULL );
 761             WIN_ReleaseWndPtr( wndPtr );
 762         }
 763         break;
 764
 765     case WM_GETTEXT:
 766         {
 767             WND *wndPtr = WIN_FindWndPtr( hwnd );
 768             if (wParam && wndPtr && wndPtr->text)
 769             {
 770                 LPSTR dest = (LPSTR)lParam;
 771                 if (!WideCharToMultiByte( CP_ACP, 0, wndPtr->text, -1,
 772                                           dest, wParam, NULL, NULL )) dest[wParam-1] = 0;
 773                 result = strlen( dest );
 774             }
 775             WIN_ReleaseWndPtr( wndPtr );
 776         }
 777         break;
 778
 779     case WM_SETTEXT:
 780         DEFWND_SetTextA( hwnd, (LPCSTR)lParam );
 781         if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
 782             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 783         result = 1; /* success. FIXME: check text length */
 784         break;
 785
 786     /* for far east users (IMM32) - <hidenori@a2.ctktv.ne.jp> */
 787     case WM_IME_CHAR:
 788         {
 789             CHAR    chChar1 = (CHAR)( (wParam>>8) & 0xff );
 790             CHAR    chChar2 = (CHAR)( wParam & 0xff );
 791
 792             SendMessageA( hwnd, WM_CHAR, (WPARAM)chChar1, lParam );
 793             if ( IsDBCSLeadByte( chChar1 ) )
 794                 SendMessageA( hwnd, WM_CHAR, (WPARAM)chChar2, lParam );
 795         }
 796         break;
 797     case WM_IME_KEYDOWN:
 798         result = SendMessageA( hwnd, WM_KEYDOWN, wParam, lParam );
 799         break;
 800     case WM_IME_KEYUP:
 801         result = SendMessageA( hwnd, WM_KEYUP, wParam, lParam );
 802         break;
 803
 804     case WM_IME_STARTCOMPOSITION:
 805     case WM_IME_COMPOSITION:
 806     case WM_IME_ENDCOMPOSITION:
 807     case WM_IME_SELECT:
 808         {
 809             HWND hwndIME;
 810
 811             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 812             if (hwndIME)
 813                 result = SendMessageA( hwndIME, msg, wParam, lParam );
 814         }
 815         break;
 816     case WM_IME_SETCONTEXT:
 817         {
 818             HWND hwndIME;
 819
 820             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 821             if (hwndIME)
 822                 result = DEFWND_ImmIsUIMessageA( hwndIME, msg, wParam, lParam );
 823         }
 824         break;
 825
 826     default:
 827         result = DEFWND_DefWinProc( hwnd, msg, wParam, lParam );
 828         break;
 829     }
 830
 831     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
 832     return result;
 833 }
 834
 835
 836 /***********************************************************************
 837  *              DefWindowProcW (USER32.@) Calls default window message handler
 838  *
 839  * Calls default window procedure for messages not processed
 840  *  by application.
 841  *
 842  *  RETURNS
 843  *     Return value is dependent upon the message.
 844 */
 845 LRESULT WINAPI DefWindowProcW(
 846     HWND hwnd,      /* [in] window procedure receiving message */
 847     UINT msg,       /* [in] message identifier */
 848     WPARAM wParam,  /* [in] first message parameter */
 849     LPARAM lParam )   /* [in] second message parameter */
 850 {
 851     LRESULT result = 0;
 852
 853     if (!IsWindow( hwnd )) return 0;
 854     hwnd = WIN_GetFullHandle( hwnd );
 855     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
 856
 857     switch(msg)
 858     {
 859     case WM_NCCREATE:
 860         {
 861             CREATESTRUCTW *cs = (CREATESTRUCTW *)lParam;
 862             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 863              * may have child window IDs instead of window name */
 864             if (HIWORD(cs->lpszName))
 865                 DEFWND_SetTextW( hwnd, cs->lpszName );
 866             result = 1;
 867         }
 868         break;
 869
 870     case WM_NCCALCSIZE:
 871         result = NC_HandleNCCalcSize( hwnd, (RECT *)lParam );
 872         break;
 873
 874     case WM_WINDOWPOSCHANGING:
 875         result = WINPOS_HandleWindowPosChanging( hwnd, (WINDOWPOS *)lParam );
 876         break;
 877
 878     case WM_WINDOWPOSCHANGED:
 879         {
 880             WINDOWPOS * winPos = (WINDOWPOS *)lParam;
 881             DEFWND_HandleWindowPosChanged( hwnd, winPos->flags );
 882         }
 883         break;
 884
 885     case WM_GETTEXTLENGTH:
 886         {
 887             WND *wndPtr = WIN_FindWndPtr( hwnd );
 888             if (wndPtr && wndPtr->text) result = (LRESULT)strlenW(wndPtr->text);
 889             WIN_ReleaseWndPtr( wndPtr );
 890         }
 891         break;
 892
 893     case WM_GETTEXT:
 894         {
 895             WND *wndPtr = WIN_FindWndPtr( hwnd );
 896             if (wParam && wndPtr && wndPtr->text)
 897             {
 898                 LPWSTR dest = (LPWSTR)lParam;
 899                 lstrcpynW( dest, wndPtr->text, wParam );
 900                 result = strlenW( dest );
 901             }
 902             WIN_ReleaseWndPtr( wndPtr );
 903         }
 904         break;
 905
 906     case WM_SETTEXT:
 907         DEFWND_SetTextW( hwnd, (LPCWSTR)lParam );
 908         if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
 909             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 910         result = 1; /* success. FIXME: check text length */
 911         break;
 912
 913     /* for far east users (IMM32) - <hidenori@a2.ctktv.ne.jp> */
 914     case WM_IME_CHAR:
 915         SendMessageW( hwnd, WM_CHAR, wParam, lParam );
 916         break;
 917     case WM_IME_SETCONTEXT:
 918         {
 919             HWND hwndIME;
 920
 921             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 922             if (hwndIME)
 923                 result = DEFWND_ImmIsUIMessageW( hwndIME, msg, wParam, lParam );
 924         }
 925         break;
 926
 927     default:
 928         result = DEFWND_DefWinProc( hwnd, msg, wParam, lParam );
 929         break;
 930     }
 931     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
 932     return result;
 933 }