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 "config.h"
  23 #include "wine/port.h"
  24
  25 #include <string.h>
  26 #include <stdarg.h>
  27
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "wingdi.h"
  31 #include "winnls.h"
  32 #include "imm.h"
  33 #include "win.h"
  34 #include "user_private.h"
  35 #include "controls.h"
  36 #include "winpos.h"
  37 #include "message.h"
  38 #include "wine/unicode.h"
  39 #include "wine/winuser16.h"
  40 #include "wine/server.h"
  41 #include "wine/debug.h"
  42
  43 WINE_DEFAULT_DEBUG_CHANNEL(win);
  44
  45   /* bits in the dwKeyData */
  46 #define KEYDATA_ALT             0x2000
  47 #define KEYDATA_PREVSTATE       0x4000
  48
  49 static short iF10Key = 0;
  50 static short iMenuSysKey = 0;
  51 static const WCHAR imm32W[] = { 'i','m','m','3','2','\0' };
  52
  53 /***********************************************************************
  54  *           DEFWND_HandleWindowPosChanged
  55  *
  56  * Handle the WM_WINDOWPOSCHANGED message.
  57  */
  58 static void DEFWND_HandleWindowPosChanged( HWND hwnd, const WINDOWPOS *winpos )
  59 {
  60     RECT rect;
  61     WND *wndPtr = WIN_GetPtr( hwnd );
  62
  63     rect = wndPtr->rectClient;
  64     WIN_ReleasePtr( wndPtr );
  65
  66     if (!(winpos->flags & SWP_NOCLIENTMOVE))
  67         SendMessageW( hwnd, WM_MOVE, 0, MAKELONG(rect.left, rect.top));
  68
  69     if (!(winpos->flags & SWP_NOCLIENTSIZE))
  70     {
  71         WPARAM wp = SIZE_RESTORED;
  72         if (IsZoomed(hwnd)) wp = SIZE_MAXIMIZED;
  73         else if (IsIconic(hwnd)) wp = SIZE_MINIMIZED;
  74
  75         SendMessageW( hwnd, WM_SIZE, wp, MAKELONG(rect.right-rect.left, rect.bottom-rect.top) );
  76     }
  77 }
  78
  79
  80 /***********************************************************************
  81  *           DEFWND_SetTextA
  82  *
  83  * Set the window text.
  84  */
  85 static void DEFWND_SetTextA( HWND hwnd, LPCSTR text )
  86 {
  87     int count;
  88     WCHAR *textW;
  89     WND *wndPtr;
  90
  91     if (!text) text = "";
  92     count = MultiByteToWideChar( CP_ACP, 0, text, -1, NULL, 0 );
  93
  94     if (!(wndPtr = WIN_GetPtr( hwnd ))) return;
  95     if ((textW = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR))))
  96     {
  97         HeapFree(GetProcessHeap(), 0, wndPtr->text);
  98         wndPtr->text = textW;
  99         MultiByteToWideChar( CP_ACP, 0, text, -1, textW, count );
 100         SERVER_START_REQ( set_window_text )
 101         {
 102             req->handle = hwnd;
 103             wine_server_add_data( req, textW, (count-1) * sizeof(WCHAR) );
 104             wine_server_call( req );
 105         }
 106         SERVER_END_REQ;
 107     }
 108     else
 109         ERR("Not enough memory for window text\n");
 110     WIN_ReleasePtr( wndPtr );
 111
 112     if (USER_Driver.pSetWindowText) USER_Driver.pSetWindowText( hwnd, textW );
 113 }
 114
 115 /***********************************************************************
 116  *           DEFWND_SetTextW
 117  *
 118  * Set the window text.
 119  */
 120 static void DEFWND_SetTextW( HWND hwnd, LPCWSTR text )
 121 {
 122     static const WCHAR empty_string[] = {0};
 123     WND *wndPtr;
 124     int count;
 125
 126     if (!text) text = empty_string;
 127     count = strlenW(text) + 1;
 128
 129     if (!(wndPtr = WIN_GetPtr( hwnd ))) return;
 130     HeapFree(GetProcessHeap(), 0, wndPtr->text);
 131     if ((wndPtr->text = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WCHAR))))
 132     {
 133         strcpyW( wndPtr->text, text );
 134         SERVER_START_REQ( set_window_text )
 135         {
 136             req->handle = hwnd;
 137             wine_server_add_data( req, wndPtr->text, (count-1) * sizeof(WCHAR) );
 138             wine_server_call( req );
 139         }
 140         SERVER_END_REQ;
 141     }
 142     else
 143         ERR("Not enough memory for window text\n");
 144     text = wndPtr->text;
 145     WIN_ReleasePtr( wndPtr );
 146
 147     if (USER_Driver.pSetWindowText) USER_Driver.pSetWindowText( hwnd, text );
 148 }
 149
 150 /***********************************************************************
 151  *           DEFWND_ControlColor
 152  *
 153  * Default colors for control painting.
 154  */
 155 HBRUSH DEFWND_ControlColor( HDC hDC, UINT ctlType )
 156 {
 157     if( ctlType == CTLCOLOR_SCROLLBAR)
 158     {
 159         HBRUSH hb = GetSysColorBrush(COLOR_SCROLLBAR);
 160         COLORREF bk = GetSysColor(COLOR_3DHILIGHT);
 161         SetTextColor( hDC, GetSysColor(COLOR_3DFACE));
 162         SetBkColor( hDC, bk);
 163
 164         /* if COLOR_WINDOW happens to be the same as COLOR_3DHILIGHT
 165          * we better use 0x55aa bitmap brush to make scrollbar's background
 166          * look different from the window background.
 167          */
 168         if (bk == GetSysColor(COLOR_WINDOW))
 169             return SYSCOLOR_55AABrush;
 170
 171         UnrealizeObject( hb );
 172         return hb;
 173     }
 174
 175     SetTextColor( hDC, GetSysColor(COLOR_WINDOWTEXT));
 176
 177     if ((ctlType == CTLCOLOR_EDIT) || (ctlType == CTLCOLOR_LISTBOX))
 178         SetBkColor( hDC, GetSysColor(COLOR_WINDOW) );
 179     else {
 180         SetBkColor( hDC, GetSysColor(COLOR_3DFACE) );
 181         return GetSysColorBrush(COLOR_3DFACE);
 182     }
 183     return GetSysColorBrush(COLOR_WINDOW);
 184 }
 185
 186
 187 /***********************************************************************
 188  *           DEFWND_Print
 189  *
 190  * This method handles the default behavior for the WM_PRINT message.
 191  */
 192 static void DEFWND_Print( HWND hwnd, HDC hdc, ULONG uFlags)
 193 {
 194   /*
 195    * Visibility flag.
 196    */
 197   if ( (uFlags & PRF_CHECKVISIBLE) &&
 198        !IsWindowVisible(hwnd) )
 199       return;
 200
 201   /*
 202    * Unimplemented flags.
 203    */
 204   if ( (uFlags & PRF_CHILDREN) ||
 205        (uFlags & PRF_OWNED)    ||
 206        (uFlags & PRF_NONCLIENT) )
 207   {
 208     WARN("WM_PRINT message with unsupported flags\n");
 209   }
 210
 211   /*
 212    * Background
 213    */
 214   if ( uFlags & PRF_ERASEBKGND)
 215     SendMessageW(hwnd, WM_ERASEBKGND, (WPARAM)hdc, 0);
 216
 217   /*
 218    * Client area
 219    */
 220   if ( uFlags & PRF_CLIENT)
 221     SendMessageW(hwnd, WM_PRINTCLIENT, (WPARAM)hdc, PRF_CLIENT);
 222 }
 223
 224
 225 /*
 226  * helpers for calling IMM32
 227  *
 228  * WM_IME_* messages are generated only by IMM32,
 229  * so I assume imm32 is already LoadLibrary-ed.
 230  */
 231 static HWND DEFWND_ImmGetDefaultIMEWnd( HWND hwnd )
 232 {
 233     HINSTANCE hInstIMM = GetModuleHandleW( imm32W );
 234     HWND (WINAPI *pFunc)(HWND);
 235     HWND hwndRet = 0;
 236
 237     if (!hInstIMM)
 238     {
 239         ERR( "cannot get IMM32 handle\n" );
 240         return 0;
 241     }
 242
 243     pFunc = (void*)GetProcAddress(hInstIMM,"ImmGetDefaultIMEWnd");
 244     if ( pFunc != NULL )
 245         hwndRet = (*pFunc)( hwnd );
 246
 247     return hwndRet;
 248 }
 249
 250 static BOOL DEFWND_ImmIsUIMessageA( HWND hwndIME, UINT msg, WPARAM wParam, LPARAM lParam )
 251 {
 252     HINSTANCE hInstIMM = GetModuleHandleW( imm32W );
 253     BOOL (WINAPI *pFunc)(HWND,UINT,WPARAM,LPARAM);
 254     BOOL fRet = FALSE;
 255
 256     if (!hInstIMM)
 257     {
 258         ERR( "cannot get IMM32 handle\n" );
 259         return FALSE;
 260     }
 261
 262     pFunc = (void*)GetProcAddress(hInstIMM,"ImmIsUIMessageA");
 263     if ( pFunc != NULL )
 264         fRet = (*pFunc)( hwndIME, msg, wParam, lParam );
 265
 266     return fRet;
 267 }
 268
 269 static BOOL DEFWND_ImmIsUIMessageW( HWND hwndIME, UINT msg, WPARAM wParam, LPARAM lParam )
 270 {
 271     HINSTANCE hInstIMM = GetModuleHandleW( imm32W );
 272     BOOL (WINAPI *pFunc)(HWND,UINT,WPARAM,LPARAM);
 273     BOOL fRet = FALSE;
 274
 275     if (!hInstIMM)
 276     {
 277         ERR( "cannot get IMM32 handle\n" );
 278         return FALSE;
 279     }
 280
 281     pFunc = (void*)GetProcAddress(hInstIMM,"ImmIsUIMessageW");
 282     if ( pFunc != NULL )
 283         fRet = (*pFunc)( hwndIME, msg, wParam, lParam );
 284
 285     return fRet;
 286 }
 287
 288
 289
 290 /***********************************************************************
 291  *           DEFWND_DefWinProc
 292  *
 293  * Default window procedure for messages that are the same in Ansi and Unicode.
 294  */
 295 static LRESULT DEFWND_DefWinProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
 296 {
 297     switch(msg)
 298     {
 299     case WM_NCPAINT:
 300         return NC_HandleNCPaint( hwnd, (HRGN)wParam );
 301
 302     case WM_NCHITTEST:
 303         {
 304             POINT pt;
 305             pt.x = (short)LOWORD(lParam);
 306             pt.y = (short)HIWORD(lParam);
 307             return NC_HandleNCHitTest( hwnd, pt );
 308         }
 309
 310     case WM_NCCALCSIZE:
 311         return NC_HandleNCCalcSize( hwnd, (RECT *)lParam );
 312
 313     case WM_WINDOWPOSCHANGING:
 314         return WINPOS_HandleWindowPosChanging( hwnd, (WINDOWPOS *)lParam );
 315
 316     case WM_WINDOWPOSCHANGED:
 317         DEFWND_HandleWindowPosChanged( hwnd, (const WINDOWPOS *)lParam );
 318         break;
 319
 320     case WM_LBUTTONDOWN:
 321     case WM_RBUTTONDOWN:
 322     case WM_MBUTTONDOWN:
 323         iF10Key = iMenuSysKey = 0;
 324         break;
 325
 326     case WM_NCLBUTTONDOWN:
 327         return NC_HandleNCLButtonDown( hwnd, wParam, lParam );
 328
 329     case WM_LBUTTONDBLCLK:
 330     case WM_NCLBUTTONDBLCLK:
 331         return NC_HandleNCLButtonDblClk( hwnd, wParam, lParam );
 332
 333     case WM_NCRBUTTONDOWN:
 334         /* in Windows, capture is taken when right-clicking on the caption bar */
 335         if (wParam==HTCAPTION)
 336         {
 337             SetCapture(hwnd);
 338         }
 339         break;
 340
 341     case WM_RBUTTONUP:
 342         {
 343             POINT pt;
 344
 345             if (hwnd == GetCapture())
 346                 /* release capture if we took it on WM_NCRBUTTONDOWN */
 347                 ReleaseCapture();
 348
 349             pt.x = (short)LOWORD(lParam);
 350             pt.y = (short)HIWORD(lParam);
 351             ClientToScreen(hwnd, &pt);
 352             SendMessageW( hwnd, WM_CONTEXTMENU, (WPARAM)hwnd, MAKELPARAM(pt.x, pt.y) );
 353         }
 354         break;
 355
 356     case WM_NCRBUTTONUP:
 357         /*
 358          * FIXME : we must NOT send WM_CONTEXTMENU on a WM_NCRBUTTONUP (checked
 359          * in Windows), but what _should_ we do? According to MSDN :
 360          * "If it is appropriate to do so, the system sends the WM_SYSCOMMAND
 361          * message to the window". When is it appropriate?
 362          */
 363         break;
 364
 365     case WM_CONTEXTMENU:
 366         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 367             SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 368         else
 369         {
 370             LONG hitcode;
 371             POINT pt;
 372             WND *wndPtr = WIN_GetPtr( hwnd );
 373             HMENU hMenu = wndPtr->hSysMenu;
 374             WIN_ReleasePtr( wndPtr );
 375             if (!hMenu) return 0;
 376             pt.x = (short)LOWORD(lParam);
 377             pt.y = (short)HIWORD(lParam);
 378             hitcode = NC_HandleNCHitTest(hwnd, pt);
 379
 380             /* Track system popup if click was in the caption area. */
 381             if (hitcode==HTCAPTION || hitcode==HTSYSMENU)
 382                TrackPopupMenu(GetSystemMenu(hwnd, FALSE),
 383                                TPM_LEFTBUTTON | TPM_RIGHTBUTTON,
 384                                pt.x, pt.y, 0, hwnd, NULL);
 385         }
 386         break;
 387
 388     case WM_NCACTIVATE:
 389         return NC_HandleNCActivate( hwnd, wParam );
 390
 391     case WM_NCDESTROY:
 392         {
 393             WND *wndPtr = WIN_GetPtr( hwnd );
 394             if (!wndPtr) return 0;
 395             HeapFree( GetProcessHeap(), 0, wndPtr->text );
 396             wndPtr->text = NULL;
 397             HeapFree( GetProcessHeap(), 0, wndPtr->pVScroll );
 398             HeapFree( GetProcessHeap(), 0, wndPtr->pHScroll );
 399             wndPtr->pVScroll = wndPtr->pHScroll = NULL;
 400             WIN_ReleasePtr( wndPtr );
 401             return 0;
 402         }
 403
 404     case WM_PRINT:
 405         DEFWND_Print(hwnd, (HDC)wParam, lParam);
 406         return 0;
 407
 408     case WM_PAINTICON:
 409     case WM_PAINT:
 410         {
 411             PAINTSTRUCT ps;
 412             HDC hdc = BeginPaint( hwnd, &ps );
 413             if( hdc )
 414             {
 415               HICON hIcon;
 416               if (IsIconic(hwnd) && ((hIcon = (HICON)GetClassLongPtrW( hwnd, GCLP_HICON))) )
 417               {
 418                   RECT rc;
 419                   int x, y;
 420
 421                   GetClientRect( hwnd, &rc );
 422                   x = (rc.right - rc.left - GetSystemMetrics(SM_CXICON))/2;
 423                   y = (rc.bottom - rc.top - GetSystemMetrics(SM_CYICON))/2;
 424                   TRACE("Painting class icon: vis rect=(%ld,%ld - %ld,%ld)\n",
 425                         ps.rcPaint.left, ps.rcPaint.top, ps.rcPaint.right, ps.rcPaint.bottom );
 426                   DrawIcon( hdc, x, y, hIcon );
 427               }
 428               EndPaint( hwnd, &ps );
 429             }
 430             return 0;
 431         }
 432
 433     case WM_SYNCPAINT:
 434         RedrawWindow ( hwnd, NULL, 0, RDW_ERASENOW | RDW_ERASE | RDW_ALLCHILDREN );
 435         return 0;
 436
 437     case WM_SETREDRAW:
 438         if (wParam) WIN_SetStyle( hwnd, WS_VISIBLE, 0 );
 439         else
 440         {
 441             RedrawWindow( hwnd, NULL, 0, RDW_ALLCHILDREN | RDW_VALIDATE );
 442             WIN_SetStyle( hwnd, 0, WS_VISIBLE );
 443         }
 444         return 0;
 445
 446     case WM_CLOSE:
 447         DestroyWindow( hwnd );
 448         return 0;
 449
 450     case WM_MOUSEACTIVATE:
 451         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 452         {
 453             LONG ret = SendMessageW( GetParent(hwnd), WM_MOUSEACTIVATE, wParam, lParam );
 454             if (ret) return ret;
 455         }
 456
 457         /* Caption clicks are handled by the NC_HandleNCLButtonDown() */
 458         return (LOWORD(lParam) >= HTCLIENT) ? MA_ACTIVATE : MA_NOACTIVATE;
 459
 460     case WM_ACTIVATE:
 461         /* The default action in Windows is to set the keyboard focus to
 462          * the window, if it's being activated and not minimized */
 463         if (LOWORD(wParam) != WA_INACTIVE) {
 464             if (!IsIconic(hwnd)) SetFocus(hwnd);
 465         }
 466         break;
 467
 468     case WM_MOUSEWHEEL:
 469         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 470             return SendMessageW( GetParent(hwnd), WM_MOUSEWHEEL, wParam, lParam );
 471         break;
 472
 473     case WM_ERASEBKGND:
 474     case WM_ICONERASEBKGND:
 475         {
 476             RECT rect;
 477             HDC hdc = (HDC)wParam;
 478             HBRUSH hbr = (HBRUSH)GetClassLongPtrW( hwnd, GCLP_HBRBACKGROUND );
 479             if (!hbr) return 0;
 480
 481             if (GetClassLongW( hwnd, GCL_STYLE ) & CS_PARENTDC)
 482             {
 483                 /* can't use GetClipBox with a parent DC or we fill the whole parent */
 484                 GetClientRect( hwnd, &rect );
 485                 DPtoLP( hdc, (LPPOINT)&rect, 2 );
 486             }
 487             else GetClipBox( hdc, &rect );
 488             FillRect( hdc, &rect, hbr );
 489             return 1;
 490         }
 491
 492     case WM_GETDLGCODE:
 493         return 0;
 494
 495     case WM_CTLCOLORMSGBOX:
 496     case WM_CTLCOLOREDIT:
 497     case WM_CTLCOLORLISTBOX:
 498     case WM_CTLCOLORBTN:
 499     case WM_CTLCOLORDLG:
 500     case WM_CTLCOLORSTATIC:
 501     case WM_CTLCOLORSCROLLBAR:
 502         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, msg - WM_CTLCOLORMSGBOX );
 503
 504     case WM_CTLCOLOR:
 505         return (LRESULT)DEFWND_ControlColor( (HDC)wParam, HIWORD(lParam) );
 506
 507     case WM_SETCURSOR:
 508         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)
 509         {
 510             /* with the exception of the border around a resizable wnd,
 511              * give the parent first chance to set the cursor */
 512             if ((LOWORD(lParam) < HTSIZEFIRST) || (LOWORD(lParam) > HTSIZELAST))
 513             {
 514                 if (SendMessageW(GetParent(hwnd), WM_SETCURSOR, wParam, lParam)) return TRUE;
 515             }
 516         }
 517         NC_HandleSetCursor( hwnd, wParam, lParam );
 518         break;
 519
 520     case WM_SYSCOMMAND:
 521         return NC_HandleSysCommand( hwnd, wParam, lParam );
 522
 523     case WM_KEYDOWN:
 524         if(wParam == VK_F10) iF10Key = VK_F10;
 525         break;
 526
 527     case WM_SYSKEYDOWN:
 528         if( HIWORD(lParam) & KEYDATA_ALT )
 529         {
 530             /* if( HIWORD(lParam) & ~KEYDATA_PREVSTATE ) */
 531               if( wParam == VK_MENU && !iMenuSysKey )
 532                 iMenuSysKey = 1;
 533               else
 534                 iMenuSysKey = 0;
 535
 536             iF10Key = 0;
 537
 538             if( wParam == VK_F4 )       /* try to close the window */
 539             {
 540                 HWND top = GetAncestor( hwnd, GA_ROOT );
 541                 if (!(GetClassLongW( top, GCL_STYLE ) & CS_NOCLOSE))
 542                     PostMessageW( top, WM_SYSCOMMAND, SC_CLOSE, 0 );
 543             }
 544         }
 545         else if( wParam == VK_F10 )
 546             iF10Key = 1;
 547         else if( wParam == VK_ESCAPE && (GetKeyState(VK_SHIFT) & 0x8000))
 548             SendMessageW( hwnd, WM_SYSCOMMAND, SC_KEYMENU, ' ' );
 549         break;
 550
 551     case WM_KEYUP:
 552     case WM_SYSKEYUP:
 553         /* Press and release F10 or ALT */
 554         if (((wParam == VK_MENU) && iMenuSysKey) ||
 555             ((wParam == VK_F10) && iF10Key))
 556               SendMessageW( GetAncestor( hwnd, GA_ROOT ), WM_SYSCOMMAND, SC_KEYMENU, 0L );
 557         iMenuSysKey = iF10Key = 0;
 558         break;
 559
 560     case WM_SYSCHAR:
 561     {
 562         iMenuSysKey = 0;
 563         if (wParam == '\r' && IsIconic(hwnd))
 564         {
 565             PostMessageW( hwnd, WM_SYSCOMMAND, SC_RESTORE, 0L );
 566             break;
 567         }
 568         if ((HIWORD(lParam) & KEYDATA_ALT) && wParam)
 569         {
 570             if (wParam == '\t' || wParam == '\x1b') break;
 571             if (wParam == ' ' && (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD))
 572                 SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 573             else
 574                 SendMessageW( hwnd, WM_SYSCOMMAND, SC_KEYMENU, wParam );
 575         }
 576         else /* check for Ctrl-Esc */
 577             if (wParam != '\x1b') MessageBeep(0);
 578         break;
 579     }
 580
 581     case WM_SHOWWINDOW:
 582         {
 583             LONG style = GetWindowLongW( hwnd, GWL_STYLE );
 584             if (!lParam) return 0; /* sent from ShowWindow */
 585             if (!(style & WS_POPUP)) return 0;
 586             if ((style & WS_VISIBLE) && wParam) return 0;
 587             if (!(style & WS_VISIBLE) && !wParam) return 0;
 588             if (!GetWindow( hwnd, GW_OWNER )) return 0;
 589             ShowWindow( hwnd, wParam ? SW_SHOWNOACTIVATE : SW_HIDE );
 590             break;
 591         }
 592
 593     case WM_CANCELMODE:
 594         iMenuSysKey = 0;
 595         if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_CHILD)) EndMenu();
 596         if (GetCapture() == hwnd) ReleaseCapture();
 597         break;
 598
 599     case WM_VKEYTOITEM:
 600     case WM_CHARTOITEM:
 601         return -1;
 602
 603     case WM_DROPOBJECT:
 604         return DRAG_FILE;
 605
 606     case WM_QUERYDROPOBJECT:
 607         return (GetWindowLongA( hwnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES) != 0;
 608
 609     case WM_QUERYDRAGICON:
 610         {
 611             UINT len;
 612
 613             HICON hIcon = (HICON)GetClassLongPtrW( hwnd, GCLP_HICON );
 614             HINSTANCE instance = (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE );
 615             if (hIcon) return (LRESULT)hIcon;
 616             for(len=1; len<64; len++)
 617                 if((hIcon = LoadIconW(instance, MAKEINTRESOURCEW(len))))
 618                     return (LRESULT)hIcon;
 619             return (LRESULT)LoadIconW(0, (LPWSTR)IDI_APPLICATION);
 620         }
 621         break;
 622
 623     case WM_ISACTIVEICON:
 624         {
 625             WND *wndPtr = WIN_GetPtr( hwnd );
 626             BOOL ret = (wndPtr->flags & WIN_NCACTIVATED) != 0;
 627             WIN_ReleasePtr( wndPtr );
 628             return ret;
 629         }
 630
 631     case WM_NOTIFYFORMAT:
 632       if (IsWindowUnicode(hwnd)) return NFR_UNICODE;
 633       else return NFR_ANSI;
 634
 635     case WM_QUERYOPEN:
 636     case WM_QUERYENDSESSION:
 637         return 1;
 638
 639     case WM_SETICON:
 640         {
 641             HICON ret;
 642             WND *wndPtr = WIN_GetPtr( hwnd );
 643
 644             switch(wParam)
 645             {
 646             case ICON_SMALL:
 647                 ret = wndPtr->hIconSmall;
 648                 wndPtr->hIconSmall = (HICON)lParam;
 649                 break;
 650             case ICON_BIG:
 651                 ret = wndPtr->hIcon;
 652                 wndPtr->hIcon = (HICON)lParam;
 653                 break;
 654             default:
 655                 ret = 0;
 656                 break;
 657             }
 658             WIN_ReleasePtr( wndPtr );
 659
 660             if (USER_Driver.pSetWindowIcon)
 661                 USER_Driver.pSetWindowIcon( hwnd, wParam, (HICON)lParam );
 662
 663             SetWindowPos(hwnd, 0, 0, 0, 0, 0, SWP_FRAMECHANGED | SWP_NOSIZE |
 664                          SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOZORDER);
 665
 666             return (LRESULT)ret;
 667         }
 668
 669     case WM_GETICON:
 670         {
 671             HICON ret;
 672             WND *wndPtr = WIN_GetPtr( hwnd );
 673
 674             switch(wParam)
 675             {
 676             case ICON_SMALL:
 677                 ret = wndPtr->hIconSmall;
 678                 break;
 679             case ICON_BIG:
 680                 ret = wndPtr->hIcon;
 681                 break;
 682             case ICON_SMALL2:
 683                 ret = wndPtr->hIconSmall;
 684                 if (!ret) ret = (HICON)GetClassLongPtrW( hwnd, GCLP_HICONSM );
 685                 /* FIXME: should have a default here if class icon is null */
 686                 break;
 687             default:
 688                 ret = 0;
 689                 break;
 690             }
 691             WIN_ReleasePtr( wndPtr );
 692             return (LRESULT)ret;
 693         }
 694
 695     case WM_HELP:
 696         SendMessageW( GetParent(hwnd), msg, wParam, lParam );
 697         break;
 698     }
 699
 700     return 0;
 701 }
 702
 703
 704
 705 /***********************************************************************
 706  *              DefWindowProcA (USER32.@)
 707  *
 708  */
 709 LRESULT WINAPI DefWindowProcA( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam )
 710 {
 711     LRESULT result = 0;
 712     HWND full_handle;
 713
 714     if (!(full_handle = WIN_IsCurrentProcess( hwnd )))
 715     {
 716         if (!IsWindow( hwnd )) return 0;
 717         ERR( "called for other process window %p\n", hwnd );
 718         return 0;
 719     }
 720     hwnd = full_handle;
 721
 722     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
 723
 724     switch(msg)
 725     {
 726     case WM_NCCREATE:
 727         {
 728             CREATESTRUCTA *cs = (CREATESTRUCTA *)lParam;
 729             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 730              * may have child window IDs instead of window name */
 731             if (HIWORD(cs->lpszName))
 732                 DEFWND_SetTextA( hwnd, cs->lpszName );
 733             result = 1;
 734         }
 735         break;
 736
 737     case WM_GETTEXTLENGTH:
 738         {
 739             WND *wndPtr = WIN_GetPtr( hwnd );
 740             if (wndPtr && wndPtr->text)
 741                 result = WideCharToMultiByte( CP_ACP, 0, wndPtr->text, strlenW(wndPtr->text),
 742                                               NULL, 0, NULL, NULL );
 743             WIN_ReleasePtr( wndPtr );
 744         }
 745         break;
 746
 747     case WM_GETTEXT:
 748         if (wParam)
 749         {
 750             LPSTR dest = (LPSTR)lParam;
 751             WND *wndPtr = WIN_GetPtr( hwnd );
 752
 753             if (!wndPtr) break;
 754             if (wndPtr->text)
 755             {
 756                 if (!WideCharToMultiByte( CP_ACP, 0, wndPtr->text, -1,
 757                                           dest, wParam, NULL, NULL )) dest[wParam-1] = 0;
 758                 result = strlen( dest );
 759             }
 760             else dest[0] = '\0';
 761             WIN_ReleasePtr( wndPtr );
 762         }
 763         break;
 764
 765     case WM_SETTEXT:
 766         DEFWND_SetTextA( hwnd, (LPCSTR)lParam );
 767         if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
 768             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 769         result = 1; /* success. FIXME: check text length */
 770         break;
 771
 772     /* for far east users (IMM32) - <hidenori@a2.ctktv.ne.jp> */
 773     case WM_IME_CHAR:
 774         {
 775             CHAR    chChar1 = (CHAR)( (wParam>>8) & 0xff );
 776             CHAR    chChar2 = (CHAR)( wParam & 0xff );
 777
 778             if (chChar1)
 779                 SendMessageA( hwnd, WM_CHAR, (WPARAM)chChar1, lParam );
 780             SendMessageA( hwnd, WM_CHAR, (WPARAM)chChar2, lParam );
 781         }
 782         break;
 783     case WM_IME_KEYDOWN:
 784         result = SendMessageA( hwnd, WM_KEYDOWN, wParam, lParam );
 785         break;
 786     case WM_IME_KEYUP:
 787         result = SendMessageA( hwnd, WM_KEYUP, wParam, lParam );
 788         break;
 789
 790     case WM_IME_STARTCOMPOSITION:
 791     case WM_IME_COMPOSITION:
 792     case WM_IME_ENDCOMPOSITION:
 793     case WM_IME_SELECT:
 794         {
 795             HWND hwndIME;
 796
 797             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 798             if (hwndIME)
 799                 result = SendMessageA( hwndIME, msg, wParam, lParam );
 800         }
 801         break;
 802     case WM_IME_SETCONTEXT:
 803         {
 804             HWND hwndIME;
 805
 806             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 807             if (hwndIME)
 808                 result = DEFWND_ImmIsUIMessageA( hwndIME, msg, wParam, lParam );
 809         }
 810         break;
 811
 812     case WM_INPUTLANGCHANGEREQUEST:
 813         /* notify about the switch only if it's really our current layout */
 814         if ((HKL)lParam == GetKeyboardLayout(0))
 815             result = SendMessageA( hwnd, WM_INPUTLANGCHANGE, wParam, lParam );
 816         else
 817             result = 0;
 818         break;
 819
 820     case WM_SYSCHAR:
 821     {
 822         BYTE ch = LOWORD(wParam);
 823         WCHAR wch;
 824         MultiByteToWideChar(CP_ACP, 0, &ch, 1, &wch, 1);
 825         wParam = MAKEWPARAM( wch, HIWORD(wParam) );
 826     }
 827     /* fall through */
 828     default:
 829         result = DEFWND_DefWinProc( hwnd, msg, wParam, lParam );
 830         break;
 831     }
 832
 833     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
 834     return result;
 835 }
 836
 837
 838 /***********************************************************************
 839  *              DefWindowProcW (USER32.@) Calls default window message handler
 840  *
 841  * Calls default window procedure for messages not processed
 842  *  by application.
 843  *
 844  *  RETURNS
 845  *     Return value is dependent upon the message.
 846 */
 847 LRESULT WINAPI DefWindowProcW(
 848     HWND hwnd,      /* [in] window procedure receiving message */
 849     UINT msg,       /* [in] message identifier */
 850     WPARAM wParam,  /* [in] first message parameter */
 851     LPARAM lParam )   /* [in] second message parameter */
 852 {
 853     LRESULT result = 0;
 854     HWND full_handle;
 855
 856     if (!(full_handle = WIN_IsCurrentProcess( hwnd )))
 857     {
 858         if (!IsWindow( hwnd )) return 0;
 859         ERR( "called for other process window %p\n", hwnd );
 860         return 0;
 861     }
 862     hwnd = full_handle;
 863     SPY_EnterMessage( SPY_DEFWNDPROC, hwnd, msg, wParam, lParam );
 864
 865     switch(msg)
 866     {
 867     case WM_NCCREATE:
 868         {
 869             CREATESTRUCTW *cs = (CREATESTRUCTW *)lParam;
 870             /* check for string, as static icons, bitmaps (SS_ICON, SS_BITMAP)
 871              * may have child window IDs instead of window name */
 872             if (HIWORD(cs->lpszName))
 873                 DEFWND_SetTextW( hwnd, cs->lpszName );
 874             result = 1;
 875         }
 876         break;
 877
 878     case WM_GETTEXTLENGTH:
 879         {
 880             WND *wndPtr = WIN_GetPtr( hwnd );
 881             if (wndPtr && wndPtr->text) result = (LRESULT)strlenW(wndPtr->text);
 882             WIN_ReleasePtr( wndPtr );
 883         }
 884         break;
 885
 886     case WM_GETTEXT:
 887         if (wParam)
 888         {
 889             LPWSTR dest = (LPWSTR)lParam;
 890             WND *wndPtr = WIN_GetPtr( hwnd );
 891
 892             if (!wndPtr) break;
 893             if (wndPtr->text)
 894             {
 895                 lstrcpynW( dest, wndPtr->text, wParam );
 896                 result = strlenW( dest );
 897             }
 898             else dest[0] = '\0';
 899             WIN_ReleasePtr( wndPtr );
 900         }
 901         break;
 902
 903     case WM_SETTEXT:
 904         DEFWND_SetTextW( hwnd, (LPCWSTR)lParam );
 905         if( (GetWindowLongW( hwnd, GWL_STYLE ) & WS_CAPTION) == WS_CAPTION )
 906             NC_HandleNCPaint( hwnd , (HRGN)1 );  /* Repaint caption */
 907         result = 1; /* success. FIXME: check text length */
 908         break;
 909
 910     /* for far east users (IMM32) - <hidenori@a2.ctktv.ne.jp> */
 911     case WM_IME_CHAR:
 912         SendMessageW( hwnd, WM_CHAR, wParam, lParam );
 913         break;
 914     case WM_IME_SETCONTEXT:
 915         {
 916             HWND hwndIME;
 917
 918             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 919             if (hwndIME)
 920                 result = DEFWND_ImmIsUIMessageW( hwndIME, msg, wParam, lParam );
 921         }
 922         break;
 923
 924     case WM_IME_STARTCOMPOSITION:
 925     case WM_IME_COMPOSITION:
 926     case WM_IME_ENDCOMPOSITION:
 927     case WM_IME_SELECT:
 928         {
 929             HWND hwndIME;
 930
 931             hwndIME = DEFWND_ImmGetDefaultIMEWnd( hwnd );
 932             if (hwndIME)
 933                 result = SendMessageW( hwndIME, msg, wParam, lParam );
 934         }
 935         break;
 936
 937     case WM_INPUTLANGCHANGEREQUEST:
 938         /* notify about the switch only if it's really our current layout */
 939         if ((HKL)lParam == GetKeyboardLayout(0))
 940             result = SendMessageW( hwnd, WM_INPUTLANGCHANGE, wParam, lParam );
 941         else
 942             result = 0;
 943         break;
 944
 945     default:
 946         result = DEFWND_DefWinProc( hwnd, msg, wParam, lParam );
 947         break;
 948     }
 949     SPY_ExitMessage( SPY_RESULT_DEFWND, hwnd, msg, result, wParam, lParam );
 950     return result;
 951 }