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 "wine/server.h"
  23 #include "imm.h"
  24
  25 DEFAULT_DEBUG_CHANNEL(win);
  26
  27   /* bits in the dwKeyData */
  28 #define KEYDATA_ALT             0x2000
  29 #define KEYDATA_PREVSTATE       0x4000
  30
  31 static short iF10Key = 0;
  32 static short iMenuSysKey = 0;
  33
  34 /***********************************************************************
  35  *           DEFWND_HandleWindowPosChanged
  36  *
  37  * Handle the WM_WINDOWPOSCHANGED message.
  38  */
  39 static void DEFWND_HandleWindowPosChanged( HWND hwnd, UINT flags )
  40 {
  41     RECT rect;
  42     WND *wndPtr = WIN_GetPtr( hwnd );
  43
  44     rect = wndPtr->rectClient;
  45     WIN_ReleasePtr( wndPtr );
  46
  47     if (!(flags & SWP_NOCLIENTMOVE))
  48         SendMessageW( hwnd, WM_MOVE, 0, MAKELONG(rect.left, rect.top));
  49
  50     if (!(flags & SWP_NOCLIENTSIZE))
  51     {
  52         WPARAM wp = SIZE_RESTORED;
  53         if (IsZoomed(hwnd)) wp = SIZE_MAXIMIZED;
  54         else if (IsIconic(hwnd)) wp = SIZE_MINIMIZED;
  55
  56         SendMessageW( hwnd, WM_SIZE, wp, MAKELONG(rect.right-rect.left, rect.bottom-rect.top) );
  57     }
  58 }
  59
  60
  61 /***********************************************************************
  62  *           DEFWND_SetTextA
  63  *
  64  * Set the window text.
  65  */
  66 static void DEFWND_SetTextA( HWND hwnd, LPCSTR text )
  67 {
  68     int count;
  69     WCHAR *textW;
  70     WND *wndPtr;
  71
  72     if (!text) text = "";
  73     count = MultiByteToWideChar( CP_ACP, 0, text, -1, NULL, 0 );
  74
  75     if (!(wndPtr = WIN_GetPtr( hwnd ))) return;
  76     if ((textW = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR))))
  77     {
  78         if (wndPtr->text) HeapFree(GetProcessHeap(), 0, wndPtr->text);
  79         wndPtr->text = textW;
  80         MultiByteToWideChar( CP_ACP, 0, text, -1, textW, count );
  81         SERVER_START_REQ( set_window_text )
  82         {
  83             req->handle = hwnd;
  84             wine_server_add_data( req, textW, (count-1) * sizeof(WCHAR) );
  85             wine_server_call( req );
  86         }
  87         SERVER_END_REQ;
  88     }
  89     else
  90         ERR("Not enough memory for window text\n");
  91     WIN_ReleasePtr( wndPtr );
  92
  93     if (USER_Driver.pSetWindowText) USER_Driver.pSetWindowText( hwnd, textW );
  94 }
  95
  96 /***********************************************************************
  97  *           DEFWND_SetTextW
  98  *
  99  * Set the window text.
 100  */
 101 static void DEFWND_SetTextW( HWND hwnd, LPCWSTR text )
 102 {
 103     static const WCHAR empty_string[] = {0};
 104     WND *wndPtr;
 105     int count;
 106
 107     if (!text) text = empty_string;
 108     count = strlenW(text) + 1;
 109
 110     if (!(wndPtr = WIN_GetPtr( hwnd ))) return;
 111     if (wndPtr->text) HeapFree(GetProcessHeap(), 0, wndPtr->text);
 112     if ((wndPtr->text = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR))))
 113     {
 114         strcpyW( wndPtr->text, text );
 115         SERVER_START_REQ( set_window_text )
 116         {
 117             req->handle = hwnd;
 118             wine_server_add_data( req, wndPtr->text, (count-1) * sizeof(WCHAR) );
 119             wine_server_call( req );
 120         }
 121         SERVER_END_REQ;
 122     }
 123     else
 124         ERR("Not enough memory for window text\n");
 125     text = wndPtr->text;
 126     WIN_ReleasePtr( wndPtr );
 127
 128     if (USER_Driver.pSetWindowText) USER_Driver.pSetWindowText( hwnd, text );
 129 }
 130
 131 /***********************************************************************
 132  *           DEFWND_ControlColor
 133  *
 134  * Default colors for control painting.
 135  */
 136 HBRUSH DEFWND_ControlColor( HDC hDC, UINT ctlType )
 137 {
 138     if( ctlType == CTLCOLOR_SCROLLBAR)
 139     {
 140         HBRUSH hb = GetSysColorBrush(COLOR_SCROLLBAR);
 141         if (TWEAK_WineLook == WIN31_LOOK) {
 142            SetTextColor( hDC, RGB(0, 0, 0) );
 143            SetBkColor( hDC, RGB(255, 255, 255) );
 144         } else {
 145            COLORREF bk = GetSysColor(COLOR_3DHILIGHT);
 146            SetTextColor( hDC, GetSysColor(COLOR_3DFACE));
 147            SetBkColor( hDC, bk);
 148
 149            /* if COLOR_WINDOW happens to be the same as COLOR_3DHILIGHT
 150             * we better use 0x55aa bitmap brush to make scrollbar's background
 151             * look different from the window background.
 152             */
 153            if (bk == GetSysColor(COLOR_WINDOW)) {
 154                return CACHE_GetPattern55AABrush();
 155            }
 156         }
 157         UnrealizeObject( hb );
 158         return hb;
 159     }
 160
 161     SetTextColor( hDC, GetSysColor(COLOR_WINDOWTEXT));
 162
 163     if (TWEAK_WineLook > WIN31_LOOK) {
 164         if ((ctlType == CTLCOLOR_EDIT) || (ctlType == CTLCOLOR_LISTBOX))
 165             SetBkColor( hDC, GetSysColor(COLOR_WINDOW) );
 166         else {
 167             SetBkColor( hDC, GetSysColor(COLOR_3DFACE) );
 168             return GetSysColorBrush(COLOR_3DFACE);
 169         }
 170     }
 171     else
 172         SetBkColor( hDC, GetSysColor(COLOR_WINDOW) );
 173     return GetSysColorBrush(COLOR_WINDOW);
 174 }
 175
 176
 177 /***********************************************************************
 178  *           DEFWND_SetRedraw
 179  */
 180 static void DEFWND_SetRedraw( HWND hwnd, WPARAM wParam )
 181 {
 182     WND *wndPtr = WIN_FindWndPtr( hwnd );
 183     BOOL bVisible = wndPtr->dwStyle & WS_VISIBLE;
 184
 185     TRACE("%04x %i\n", hwnd, (wParam!=0) );
 186
 187     if( wParam )
 188     {
 189         if( !bVisible )
 190         {
 191             WIN_SetStyle( hwnd, wndPtr->dwStyle | WS_VISIBLE );
 192             DCE_InvalidateDCE( hwnd, &wndPtr->rectWindow );
 193         }
 194     }
 195     else if( bVisible )
 196     {
 197         if( wndPtr->dwStyle & WS_MINIMIZE ) wParam = RDW_VALIDATE;
 198         else wParam = RDW_ALLCHILDREN | RDW_VALIDATE;
 199
 200         RedrawWindow( hwnd, NULL, 0, wParam );
 201         DCE_InvalidateDCE( hwnd, &wndPtr->rectWindow );
 202         WIN_SetStyle( hwnd, wndPtr->dwStyle & ~WS_VISIBLE );
 203     }
 204     WIN_ReleaseWndPtr( wndPtr );
 205 }
 206
 207 /***********************************************************************
 208  *           DEFWND_Print
 209  *
 210  * This method handles the default behavior for the WM_PRINT message.
 211  */
 212 static void DEFWND_Print( HWND hwnd, HDC hdc, ULONG uFlags)
 213 {
 214   /*
 215    * Visibility flag.
 216    */
 217   if ( (uFlags & PRF_CHECKVISIBLE) &&
 218        !IsWindowVisible(hwnd) )
 219       return;
 220
 221   /*
 222    * Unimplemented flags.
 223    */
 224   if ( (uFlags & PRF_CHILDREN) ||
 225        (uFlags & PRF_OWNED)    ||
 226        (uFlags & PRF_NONCLIENT) )
 227   {
 228     WARN("WM_PRINT message with unsupported flags\n");
 229   }
 230
 231   /*
 232    * Background
 233    */
 234   if ( uFlags & PRF_ERASEBKGND)
 235     SendMessageW(hwnd, WM_ERASEBKGND, (WPARAM)hdc, 0);
 236
 237   /*
 238    * Client area
 239    */
 240   if ( uFlags & PRF_CLIENT)
 241     SendMessageW(hwnd, WM_PRINTCLIENT, (WPARAM)hdc, PRF_CLIENT);
 242 }
 243
 244
 245 /*
 246  * helpers for calling IMM32
 247  *
 248  * WM_IME_* messages are generated only by IMM32,
 249  * so I assume imm32 is already LoadLibrary-ed.
 250  */
 251 static HWND DEFWND_ImmGetDefaultIMEWnd( HWND hwnd )
 252 {
 253     HINSTANCE hInstIMM = GetModuleHandleA( "imm32" );
 254     HWND WINAPI (*pFunc)(HWND);
 255     HWND hwndRet = 0;
 256
 257     if (!hInstIMM)
 258     {
 259         ERR( "cannot get IMM32 handle\n" );
 260         return 0;
 261     }
 262
 263     pFunc = (void*)GetProcAddress(hInstIMM,"ImmGetDefaultIMEWnd");
 264     if ( pFunc != NULL )
 265         hwndRet = (*pFunc)( hwnd );
 266
 267     return hwndRet;
 268 }
 269
 270 static BOOL DEFWND_ImmIsUIMessageA( HWND hwndIME, UINT msg, WPARAM wParam, LPARAM lParam )
 271 {
 272     HINSTANCE hInstIMM = GetModuleHandleA( "imm32" );
 273     BOOL WINAPI (*pFunc)(HWND,UINT,WPARAM,LPARAM);
 274     BOOL fRet = FALSE;
 275
 276     if (!hInstIMM)
 277     {
 278         ERR( "cannot get IMM32 handle\n" );
 279         return FALSE;
 280     }
 281
 282     pFunc = (void*)GetProcAddress(hInstIMM,"ImmIsUIMessageA");
 283     if ( pFunc != NULL )
 284         fRet = (*pFunc)( hwndIME, msg, wParam, lParam );
 285
 286     return fRet;
 287 }
 288
 289 static BOOL DEFWND_ImmIsUIMessageW( HWND hwndIME, UINT msg, WPARAM wParam, LPARAM lParam )
 290 {
 291     HINSTANCE hInstIMM = GetModuleHandleA( "imm32" );
 292     BOOL WINAPI (*pFunc)(HWND,UINT,WPARAM,LPARAM);
 293     BOOL fRet = FALSE;
 294
 295     if (!hInstIMM)
 296     {
 297         ERR( "cannot get IMM32 handle\n" );
 298         return FALSE;
 299     }
 300
 301     pFunc = (void*)GetProcAddress(hInstIMM,"ImmIsUIMessageW");
 302     if ( pFunc != NULL )
 303         fRet = (*pFunc)( hwndIME, msg, wParam, lParam );
 304
 305     return fRet;
 306 }
 307
 308
 309
 310 /***********************************************************************
 311  *           DEFWND_DefWinProc
 312  *
 313  * Default window procedure for messages that are the same in Win16 and Win32.
 314  */
 315 static LRESULT DEFWND_DefWinProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
 316 {
 317     switch(msg)
 318     {
 319     case WM_NCPAINT:
 320         return NC_HandleNCPaint( hwnd, (HRGN)wParam );
 321
 322     case WM_NCHITTEST:
 323         {
 324             POINT pt;
 325             pt.x = SLOWORD(lParam);
 326             pt.y = SHIWORD(lParam);
 327             return NC_HandleNCHitTest( hwnd, pt );
 328         }
 329
 330     case WM_NCLBUTTONDOWN:
 331         return NC_HandleNCLButtonDown( hwnd, wParam, lParam );
 332
 333     case WM_LBUTTONDBLCLK:
 334     case WM_NCLBUTTONDBLCLK:
 335         return NC_HandleNCLButtonDblClk( hwnd, wParam, lParam );
 336
 337     case WM_NCRBUTTONDOWN:
 338         /* in Windows, capture is taken when right-clicking on the caption bar */
 339         if (wParam==HTCAPTION)
 340         {
 341             SetCapture(hwnd);
 342         }
 343         break;
 344
 345     case WM_RBUTTONUP:
 346         {
 347             POINT pt;
 348
 349             if (hwnd == GetCapture())
 350                 /* release capture if we took it on WM_NCRBUTTONDOWN */
 351                 ReleaseCapture();
 352
 353             pt.x = SLOWORD(lParam);
 354             pt.y = SHIWORD(lParam);
 355             ClientToScreen(hwnd, &pt);
 356             SendMessageW( hwnd, WM_CONTEXTMENU, (WPARAM)hwnd, MAKELPARAM(pt.x, pt.y) );
 357         }
 358         break;
 359
 360     case WM_NCRBUTTONUP:
 361         /*
 362          * FIXME : we must NOT send WM_CONTEXTMENU on a WM_NCRBUTTONUP (checked
 363          * in Windows), but what _should_ we do? According to MSDN :
 364          * "If it is appropriate to do so, the system sends the WM_SYSCOMMAND
 365          * message to the window". When is it appropriate?
 366          */
 367         break;
 368
 369     case WM_CONTEXTMENU:
 370         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 371             SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 372         else
 373         {
 374             LONG hitcode;
 375             POINT pt;
 376             WND *wndPtr = WIN_GetPtr( hwnd );
 377             HMENU hMenu = wndPtr->hSysMenu;
 378             WIN_ReleasePtr( wndPtr );
 379             if (!hMenu) return 0;
 380             pt.x = SLOWORD(lParam);
 381             pt.y = SHIWORD(lParam);
 382             hitcode = NC_HandleNCHitTest(hwnd, pt);
 383
 384             /* Track system popup if click was in the caption area. */
 385             if (hitcode==HTCAPTION || hitcode==HTSYSMENU)
 386                TrackPopupMenu(GetSystemMenu(hwnd, FALSE),
 387                                TPM_LEFTBUTTON | TPM_RIGHTBUTTON,
 388                                pt.x, pt.y, 0, hwnd, NULL);
 389         }
 390         break;
 391
 392     case WM_NCACTIVATE:
 393         return NC_HandleNCActivate( hwnd, wParam );
 394
 395     case WM_NCDESTROY:
 396         {
 397             WND *wndPtr = WIN_GetPtr( hwnd );
 398             if (!wndPtr) return 0;
 399             if (wndPtr->text) HeapFree( GetProcessHeap(), 0, wndPtr->text );
 400             wndPtr->text = NULL;
 401             if (wndPtr->pVScroll) HeapFree( GetProcessHeap(), 0, wndPtr->pVScroll );
 402             if (wndPtr->pHScroll) HeapFree( GetProcessHeap(), 0, wndPtr->pHScroll );
 403             wndPtr->pVScroll = wndPtr->pHScroll = NULL;
 404             WIN_ReleasePtr( wndPtr );
 405             return 0;
 406         }
 407
 408     case WM_PRINT:
 409         DEFWND_Print(hwnd, (HDC)wParam, lParam);
 410         return 0;
 411
 412     case WM_PAINTICON:
 413     case WM_PAINT:
 414         {
 415             PAINTSTRUCT ps;
 416             HDC hdc = BeginPaint( hwnd, &ps );
 417             if( hdc )
 418             {
 419               HICON hIcon;
 420               if (IsIconic(hwnd) && ((hIcon = GetClassLongW( hwnd, GCL_HICON))) )
 421               {
 422                   RECT rc;
 423                   int x, y;
 424
 425                   GetClientRect( hwnd, &rc );
 426                   x = (rc.right - rc.left - GetSystemMetrics(SM_CXICON))/2;
 427                   y = (rc.bottom - rc.top - GetSystemMetrics(SM_CYICON))/2;
 428                   TRACE("Painting class icon: vis rect=(%i,%i - %i,%i)\n",
 429                         ps.rcPaint.left, ps.rcPaint.top, ps.rcPaint.right, ps.rcPaint.bottom );
 430                   DrawIcon( hdc, x, y, hIcon );
 431               }
 432               EndPaint( hwnd, &ps );
 433             }
 434             return 0;
 435         }
 436
 437     case WM_SYNCPAINT:
 438         RedrawWindow ( hwnd, NULL, 0, RDW_ERASENOW | RDW_ERASE | RDW_ALLCHILDREN );
 439         return 0;
 440
 441     case WM_SETREDRAW:
 442         DEFWND_SetRedraw( hwnd, wParam );
 443         return 0;
 444
 445     case WM_CLOSE:
 446         DestroyWindow( hwnd );
 447         return 0;
 448
 449     case WM_MOUSEACTIVATE:
 450         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 451         {
 452             LONG ret = SendMessageW( GetParent(hwnd), WM_MOUSEACTIVATE, wParam, lParam );
 453             if (ret) return ret;
 454         }
 455
 456         /* Caption clicks are handled by the NC_HandleNCLButtonDown() */
 457         return (LOWORD(lParam) >= HTCLIENT) ? MA_ACTIVATE : MA_NOACTIVATE;
 458
 459     case WM_ACTIVATE:
 460         /* The default action in Windows is to set the keyboard focus to
 461          * the window, if it's being activated and not minimized */
 462         if (LOWORD(wParam) != WA_INACTIVE) {
 463             if (!IsIconic(hwnd)) SetFocus(hwnd);
 464         }
 465         break;
 466
 467     case WM_MOUSEWHEEL:
 468         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 469             return SendMessageW( GetParent(hwnd), WM_MOUSEWHEEL, wParam, lParam );
 470         break;
 471
 472     case WM_ERASEBKGND:
 473     case WM_ICONERASEBKGND:
 474         {
 475             RECT rect;
 476             HDC hdc = (HDC)wParam;
 477             HBRUSH hbr = GetClassLongW( hwnd, GCL_HBRBACKGROUND );
 478             if (!hbr) return 0;
 479
 480             if (GetClassLongW( hwnd, GCL_STYLE ) & CS_PARENTDC)
 481             {
 482                 /* can't use GetClipBox with a parent DC or we fill the whole parent */
 483                 GetClientRect( hwnd, &rect );
 484                 DPtoLP( hdc, (LPPOINT)&rect, 2 );
 485             }
 486             else GetClipBox( hdc, &rect );
 487             FillRect( hdc, &rect, hbr );
 488             return 1;
 489         }
 490
 491     case WM_GETDLGCODE:
 492         return 0;
 493
 494     case WM_CTLCOLORMSGBOX:
 495     case WM_CTLCOLOREDIT:
 496     case WM_CTLCOLORLISTBOX:
 497     case WM_CTLCOLORBTN:
 498     case WM_CTLCOLORDLG:
 499     case WM_CTLCOLORSTATIC:
 500     case WM_CTLCOLORSCROLLBAR:
 501         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, msg - WM_CTLCOLORMSGBOX );
 502
 503     case WM_CTLCOLOR:
 504         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, HIWORD(lParam) );
 505
 506     case WM_SETCURSOR:
 507         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 508         {
 509             /* with the exception of the border around a resizable wnd,
 510              * give the parent first chance to set the cursor */
 511             if ((LOWORD(lParam) < HTSIZEFIRST) || (LOWORD(lParam) > HTSIZELAST))
 512             {
 513                 if (SendMessageW(GetParent(hwnd), WM_SETCURSOR, wParam, lParam)) return TRUE;
 514             }
 515         }
 516         return NC_HandleSetCursor( hwnd, wParam, lParam );
 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 && !iMenuSysKey )
 530                 iMenuSysKey = 1;
 531               else
 532                 iMenuSysKey = 0;
 533
 534             iF10Key = 0;
 535
 536             if( wParam == VK_F4 )       /* try to close the window */
 537             {
 538                 HWND top = GetAncestor( hwnd, GA_ROOT );
 539                 if (!(GetClassLongW( top, GCL_STYLE ) & CS_NOCLOSE))
 540                     PostMessageW( top, WM_SYSCOMMAND, SC_CLOSE, 0 );
 541             }
 542         }
 543         else if( wParam == VK_F10 )
 544                 iF10Key = 1;
 545              else
 546                 if( wParam == VK_ESCAPE && (GetKeyState(VK_SHIFT) & 0x8000))
 547                     SendMessageW( hwnd, WM_SYSCOMMAND, SC_KEYMENU, VK_SPACE );
 548         break;
 549
 550     case WM_KEYUP:
 551     case WM_SYSKEYUP:
 552         /* Press and release F10 or ALT */
 553         if (((wParam == VK_MENU) && iMenuSysKey) ||
 554             ((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         iMenuSysKey = 0;
 561         if (wParam == VK_RETURN && IsIconic(hwnd))
 562         {
 563             PostMessageW( hwnd, WM_SYSCOMMAND, SC_RESTORE, 0L );
 564             break;
 565         }
 566         if ((HIWORD(lParam) & KEYDATA_ALT) && wParam)
 567         {
 568             if (wParam == VK_TAB || wParam == VK_ESCAPE) break;
 569             if (wParam == VK_SPACE && (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD))
 570                 SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 571             else
 572                 SendMessageW( hwnd, WM_SYSCOMMAND, SC_KEYMENU, wParam );
 573         }
 574         else /* check for Ctrl-Esc */
 575             if (wParam != VK_ESCAPE) MessageBeep(0);
 576         break;
 577
 578     case WM_SHOWWINDOW:
 579         {
 580             LONG style = GetWindowLongW( hwnd, GWL_STYLE );
 581             if (!lParam) return 0; /* sent from ShowWindow */
 582             if (!(style & WS_POPUP)) return 0;
 583             if ((style & WS_VISIBLE) && wParam) return 0;
 584             if (!(style & WS_VISIBLE) && !wParam) return 0;
 585             if (!GetWindow( hwnd, GW_OWNER )) return 0;
 586             ShowWindow( hwnd, wParam ? SW_SHOWNOACTIVATE : SW_HIDE );
 587             break;
 588         }
 589
 590     case WM_CANCELMODE:
 591         if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) EndMenu();
 592         if (GetCapture() == hwnd) ReleaseCapture();
 593         break;
 594
 595     case WM_VKEYTOITEM:
 596     case WM_CHARTOITEM:
 597         return -1;
 598
 599     case WM_DROPOBJECT:
 600         return DRAG_FILE;
 601
 602     case WM_QUERYDROPOBJECT:
 603         return (GetWindowLongA( hwnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES) != 0;
 604
 605     case WM_QUERYDRAGICON:
 606         {
 607             UINT len;
 608
 609             HICON hIcon = GetClassLongW( hwnd, GCL_HICON );
 610             HINSTANCE instance = GetWindowLongW( hwnd, GWL_HINSTANCE );
 611             if (hIcon) return hIcon;
 612             for(len=1; len<64; len++)
 613                 if((hIcon = LoadIconW(instance, MAKEINTRESOURCEW(len))))
 614                     return (LRESULT)hIcon;
 615             return (LRESULT)LoadIconW(0, IDI_APPLICATIONW);
 616         }
 617         break;
 618
 619     case WM_ISACTIVEICON:
 620         {
 621             WND *wndPtr = WIN_GetPtr( hwnd );
 622             BOOL ret = (wndPtr->flags & WIN_NCACTIVATED) != 0;
 623             WIN_ReleasePtr( wndPtr );
 624             return ret;
 625         }
 626
 627     case WM_NOTIFYFORMAT:
 628       if (IsWindowUnicode(hwnd)) return NFR_UNICODE;
 629       else return NFR_ANSI;
 630
 631     case WM_QUERYOPEN:
 632     case WM_QUERYENDSESSION:
 633         return 1;
 634
 635     case WM_SETICON:
 636         if (USER_Driver.pSetWindowIcon)
 637             return USER_Driver.pSetWindowIcon( hwnd, lParam, (wParam != ICON_SMALL) );
 638         else
 639         {
 640             HICON hOldIcon = SetClassLongW( hwnd, (wParam != ICON_SMALL) ? GCL_HICON : GCL_HICONSM,
 641                                             lParam);
 642             SetWindowPos(hwnd, 0, 0, 0, 0, 0, SWP_FRAMECHANGED | SWP_NOSIZE |
 643                          SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOZORDER);
 644             return hOldIcon;
 645         }
 646
 647     case WM_GETICON:
 648         return GetClassLongW( hwnd, (wParam != ICON_SMALL) ? GCL_HICON : GCL_HICONSM );
 649
 650     case WM_HELP:
 651         SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 652         break;
 653     }
 654
 655     return 0;
 656 }
 657
 658
 659
 660 /***********************************************************************
 661  *              DefWindowProc (USER.107)
 662  */
 663 LRESULT WINAPI DefWindowProc16( HWND16 hwnd16, UINT16 msg, WPARAM16 wParam,
 664                                 LPARAM lParam )
 665 {
 666     LRESULT result = 0;
 667     HWND hwnd = WIN_Handle32( hwnd16 );
 668
 669     if (!WIN_IsCurrentProcess( hwnd ))
 670     {
 671         if (!IsWindow( hwnd )) return 0;
 672         ERR( "called for other process window %x\n", hwnd );
 673         return 0;
 674     }
 675     SPY_EnterMessage( SPY_DEFWNDPROC16, hwnd, msg, wParam, lParam );
 676
 677     switch(msg)
 678     {
 679     case WM_NCCREATE:
 680         {
 681             CREATESTRUCT16 *cs = MapSL(lParam);
 682             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 683              * may have child window IDs instead of window name */
 684             if (HIWORD(cs->lpszName))
 685                 DEFWND_SetTextA( hwnd, MapSL(cs->lpszName) );
 686             result = 1;
 687         }
 688         break;
 689
 690     case WM_NCCALCSIZE:
 691         {
 692             RECT rect32;
 693             CONV_RECT16TO32( MapSL(lParam), &rect32 );
 694             result = NC_HandleNCCalcSize( hwnd, &rect32 );
 695             CONV_RECT32TO16( &rect32, MapSL(lParam) );
 696         }
 697         break;
 698
 699     case WM_WINDOWPOSCHANGING:
 700         result = WINPOS_HandleWindowPosChanging16( hwnd, MapSL(lParam) );
 701         break;
 702
 703     case WM_WINDOWPOSCHANGED:
 704         {
 705             WINDOWPOS16 * winPos = MapSL(lParam);
 706             DEFWND_HandleWindowPosChanged( hwnd, winPos->flags );
 707         }
 708         break;
 709
 710     case WM_GETTEXT:
 711     case WM_SETTEXT:
 712         result = DefWindowProcA( hwnd, msg, wParam, (LPARAM)MapSL(lParam) );
 713         break;
 714
 715     default:
 716         result = DefWindowProcA( hwnd, msg, wParam, lParam );
 717         break;
 718     }
 719
 720     SPY_ExitMessage( SPY_RESULT_DEFWND16, hwnd, msg, result, wParam, lParam );
 721     return result;
 722 }
 723
 724
 725 /***********************************************************************
 726  *              DefWindowProcA (USER32.@)
 727  *
 728  */
 729 LRESULT WINAPI DefWindowProcA( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
 730 {
 731     LRESULT result = 0;
 732     HWND full_handle;
 733
 734     if (!(full_handle = WIN_IsCurrentProcess( hwnd )))
 735     {
 736         if (!IsWindow( hwnd )) return 0;
 737         ERR( "called for other process window %x\n", hwnd );
 738         return 0;
 739     }
 740     hwnd = full_handle;
 741
 742     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
 743
 744     switch(msg)
 745     {
 746     case WM_NCCREATE:
 747         {
 748             CREATESTRUCTA *cs = (CREATESTRUCTA *)lParam;
 749             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 750              * may have child window IDs instead of window name */
 751             if (HIWORD(cs->lpszName))
 752                 DEFWND_SetTextA( hwnd, cs->lpszName );
 753             result = 1;
 754         }
 755         break;
 756
 757     case WM_NCCALCSIZE:
 758         result = NC_HandleNCCalcSize( hwnd, (RECT *)lParam );
 759         break;
 760
 761     case WM_WINDOWPOSCHANGING:
 762         result = WINPOS_HandleWindowPosChanging( hwnd, (WINDOWPOS *)lParam );
 763         break;
 764
 765     case WM_WINDOWPOSCHANGED:
 766         {
 767             WINDOWPOS * winPos = (WINDOWPOS *)lParam;
 768             DEFWND_HandleWindowPosChanged( hwnd, winPos->flags );
 769         }
 770         break;
 771
 772     case WM_GETTEXTLENGTH:
 773         {
 774             WND *wndPtr = WIN_GetPtr( hwnd );
 775             if (wndPtr && wndPtr->text)
 776                 result = WideCharToMultiByte( CP_ACP, 0, wndPtr->text, strlenW(wndPtr->text),
 777                                               NULL, 0, NULL, NULL );
 778             WIN_ReleasePtr( wndPtr );
 779         }
 780         break;
 781
 782     case WM_GETTEXT:
 783         {
 784             WND *wndPtr = WIN_GetPtr( hwnd );
 785             if (wParam && wndPtr && wndPtr->text)
 786             {
 787                 LPSTR dest = (LPSTR)lParam;
 788                 if (!WideCharToMultiByte( CP_ACP, 0, wndPtr->text, -1,
 789                                           dest, wParam, NULL, NULL )) dest[wParam-1] = 0;
 790                 result = strlen( dest );
 791             }
 792             WIN_ReleasePtr( wndPtr );
 793         }
 794         break;
 795
 796     case WM_SETTEXT:
 797         DEFWND_SetTextA( hwnd, (LPCSTR)lParam );
 798         if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
 799             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 800         result = 1; /* success. FIXME: check text length */
 801         break;
 802
 803     /* for far east users (IMM32) - <hidenori@a2.ctktv.ne.jp> */
 804     case WM_IME_CHAR:
 805         {
 806             CHAR    chChar1 = (CHAR)( (wParam>>8) & 0xff );
 807             CHAR    chChar2 = (CHAR)( wParam & 0xff );
 808
 809             SendMessageA( hwnd, WM_CHAR, (WPARAM)chChar1, lParam );
 810             if ( IsDBCSLeadByte( chChar1 ) )
 811                 SendMessageA( hwnd, WM_CHAR, (WPARAM)chChar2, lParam );
 812         }
 813         break;
 814     case WM_IME_KEYDOWN:
 815         result = SendMessageA( hwnd, WM_KEYDOWN, wParam, lParam );
 816         break;
 817     case WM_IME_KEYUP:
 818         result = SendMessageA( hwnd, WM_KEYUP, wParam, lParam );
 819         break;
 820
 821     case WM_IME_STARTCOMPOSITION:
 822     case WM_IME_COMPOSITION:
 823     case WM_IME_ENDCOMPOSITION:
 824     case WM_IME_SELECT:
 825         {
 826             HWND hwndIME;
 827
 828             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 829             if (hwndIME)
 830                 result = SendMessageA( hwndIME, msg, wParam, lParam );
 831         }
 832         break;
 833     case WM_IME_SETCONTEXT:
 834         {
 835             HWND hwndIME;
 836
 837             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 838             if (hwndIME)
 839                 result = DEFWND_ImmIsUIMessageA( hwndIME, msg, wParam, lParam );
 840         }
 841         break;
 842
 843     default:
 844         result = DEFWND_DefWinProc( hwnd, msg, wParam, lParam );
 845         break;
 846     }
 847
 848     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
 849     return result;
 850 }
 851
 852
 853 /***********************************************************************
 854  *              DefWindowProcW (USER32.@) Calls default window message handler
 855  *
 856  * Calls default window procedure for messages not processed
 857  *  by application.
 858  *
 859  *  RETURNS
 860  *     Return value is dependent upon the message.
 861 */
 862 LRESULT WINAPI DefWindowProcW(
 863     HWND hwnd,      /* [in] window procedure receiving message */
 864     UINT msg,       /* [in] message identifier */
 865     WPARAM wParam,  /* [in] first message parameter */
 866     LPARAM lParam )   /* [in] second message parameter */
 867 {
 868     LRESULT result = 0;
 869     HWND full_handle;
 870
 871     if (!(full_handle = WIN_IsCurrentProcess( hwnd )))
 872     {
 873         if (!IsWindow( hwnd )) return 0;
 874         ERR( "called for other process window %x\n", hwnd );
 875         return 0;
 876     }
 877     hwnd = full_handle;
 878     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
 879
 880     switch(msg)
 881     {
 882     case WM_NCCREATE:
 883         {
 884             CREATESTRUCTW *cs = (CREATESTRUCTW *)lParam;
 885             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 886              * may have child window IDs instead of window name */
 887             if (HIWORD(cs->lpszName))
 888                 DEFWND_SetTextW( hwnd, cs->lpszName );
 889             result = 1;
 890         }
 891         break;
 892
 893     case WM_NCCALCSIZE:
 894         result = NC_HandleNCCalcSize( hwnd, (RECT *)lParam );
 895         break;
 896
 897     case WM_WINDOWPOSCHANGING:
 898         result = WINPOS_HandleWindowPosChanging( hwnd, (WINDOWPOS *)lParam );
 899         break;
 900
 901     case WM_WINDOWPOSCHANGED:
 902         {
 903             WINDOWPOS * winPos = (WINDOWPOS *)lParam;
 904             DEFWND_HandleWindowPosChanged( hwnd, winPos->flags );
 905         }
 906         break;
 907
 908     case WM_GETTEXTLENGTH:
 909         {
 910             WND *wndPtr = WIN_GetPtr( hwnd );
 911             if (wndPtr && wndPtr->text) result = (LRESULT)strlenW(wndPtr->text);
 912             WIN_ReleasePtr( wndPtr );
 913         }
 914         break;
 915
 916     case WM_GETTEXT:
 917         {
 918             WND *wndPtr = WIN_GetPtr( hwnd );
 919             if (wParam && wndPtr && wndPtr->text)
 920             {
 921                 LPWSTR dest = (LPWSTR)lParam;
 922                 lstrcpynW( dest, wndPtr->text, wParam );
 923                 result = strlenW( dest );
 924             }
 925             WIN_ReleasePtr( wndPtr );
 926         }
 927         break;
 928
 929     case WM_SETTEXT:
 930         DEFWND_SetTextW( hwnd, (LPCWSTR)lParam );
 931         if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
 932             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 933         result = 1; /* success. FIXME: check text length */
 934         break;
 935
 936     /* for far east users (IMM32) - <hidenori@a2.ctktv.ne.jp> */
 937     case WM_IME_CHAR:
 938         SendMessageW( hwnd, WM_CHAR, wParam, lParam );
 939         break;
 940     case WM_IME_SETCONTEXT:
 941         {
 942             HWND hwndIME;
 943
 944             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 945             if (hwndIME)
 946                 result = DEFWND_ImmIsUIMessageW( hwndIME, msg, wParam, lParam );
 947         }
 948         break;
 949
 950     default:
 951         result = DEFWND_DefWinProc( hwnd, msg, wParam, lParam );
 952         break;
 953     }
 954     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
 955     return result;
 956 }