git.oblomov.eu Git - wine/blob - dlls/user/winpos.c

   1 /*
   2  * Window position related functions.
   3  *
   4  * Copyright 1993, 1994, 1995 Alexandre Julliard
   5  *                       1995, 1996, 1999 Alex Korobka
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdarg.h>
  26 #include <string.h>
  27 #include "ntstatus.h"
  28 #define WIN32_NO_STATUS
  29 #include "winerror.h"
  30 #include "windef.h"
  31 #include "winbase.h"
  32 #include "wingdi.h"
  33 #include "winerror.h"
  34 #include "wine/winuser16.h"
  35 #include "wine/server.h"
  36 #include "controls.h"
  37 #include "user_private.h"
  38 #include "win.h"
  39 #include "wine/debug.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(win);
  42
  43 #define HAS_DLGFRAME(style,exStyle) \
  44     (((exStyle) & WS_EX_DLGMODALFRAME) || \
  45      (((style) & WS_DLGFRAME) && !((style) & WS_BORDER)))
  46
  47 #define HAS_THICKFRAME(style) \
  48     (((style) & WS_THICKFRAME) && \
  49      !(((style) & (WS_DLGFRAME|WS_BORDER)) == WS_DLGFRAME))
  50
  51 #define EMPTYPOINT(pt)          ((*(LONG*)&(pt)) == -1)
  52
  53 #define PLACE_MIN               0x0001
  54 #define PLACE_MAX               0x0002
  55 #define PLACE_RECT              0x0004
  56
  57
  58 #define DWP_MAGIC  ((INT)('W' | ('P' << 8) | ('O' << 16) | ('S' << 24)))
  59
  60 typedef struct
  61 {
  62     INT       actualCount;
  63     INT       suggestedCount;
  64     BOOL      valid;
  65     INT       wMagic;
  66     HWND      hwndParent;
  67     WINDOWPOS winPos[1];
  68 } DWP;
  69
  70 typedef struct
  71 {
  72     RECT16   rectNormal;
  73     POINT16  ptIconPos;
  74     POINT16  ptMaxPos;
  75     HWND     hwndIconTitle;
  76 } INTERNALPOS, *LPINTERNALPOS;
  77
  78 /* ----- internal functions ----- */
  79
  80 static const WCHAR SysIP_W[] = { 'S','y','s','I','P',0 };
  81
  82 static inline INTERNALPOS *get_internal_pos( HWND hwnd )
  83 {
  84     return GetPropW( hwnd, SysIP_W );
  85 }
  86
  87 static inline void set_internal_pos( HWND hwnd, INTERNALPOS *pos )
  88 {
  89     SetPropW( hwnd, SysIP_W, pos );
  90 }
  91
  92 /***********************************************************************
  93  *           WINPOS_CheckInternalPos
  94  *
  95  * Called when a window is destroyed.
  96  */
  97 void WINPOS_CheckInternalPos( HWND hwnd )
  98 {
  99     LPINTERNALPOS lpPos = get_internal_pos( hwnd );
 100
 101     if ( lpPos )
 102     {
 103         if( IsWindow(lpPos->hwndIconTitle) )
 104             DestroyWindow( lpPos->hwndIconTitle );
 105         HeapFree( GetProcessHeap(), 0, lpPos );
 106     }
 107 }
 108
 109 /***********************************************************************
 110  *              ArrangeIconicWindows (USER32.@)
 111  */
 112 UINT WINAPI ArrangeIconicWindows( HWND parent )
 113 {
 114     RECT rectParent;
 115     HWND hwndChild;
 116     INT x, y, xspacing, yspacing;
 117
 118     GetClientRect( parent, &rectParent );
 119     x = rectParent.left;
 120     y = rectParent.bottom;
 121     xspacing = GetSystemMetrics(SM_CXICONSPACING);
 122     yspacing = GetSystemMetrics(SM_CYICONSPACING);
 123
 124     hwndChild = GetWindow( parent, GW_CHILD );
 125     while (hwndChild)
 126     {
 127         if( IsIconic( hwndChild ) )
 128         {
 129             WINPOS_ShowIconTitle( hwndChild, FALSE );
 130
 131             SetWindowPos( hwndChild, 0, x + (xspacing - GetSystemMetrics(SM_CXICON)) / 2,
 132                             y - yspacing - GetSystemMetrics(SM_CYICON)/2, 0, 0,
 133                             SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 134             if( IsWindow(hwndChild) )
 135                 WINPOS_ShowIconTitle(hwndChild , TRUE );
 136
 137             if (x <= rectParent.right - xspacing) x += xspacing;
 138             else
 139             {
 140                 x = rectParent.left;
 141                 y -= yspacing;
 142             }
 143         }
 144         hwndChild = GetWindow( hwndChild, GW_HWNDNEXT );
 145     }
 146     return yspacing;
 147 }
 148
 149
 150 /***********************************************************************
 151  *              SwitchToThisWindow (USER32.@)
 152  */
 153 void WINAPI SwitchToThisWindow( HWND hwnd, BOOL restore )
 154 {
 155     ShowWindow( hwnd, restore ? SW_RESTORE : SW_SHOWMINIMIZED );
 156 }
 157
 158
 159 /***********************************************************************
 160  *              GetWindowRect (USER32.@)
 161  */
 162 BOOL WINAPI GetWindowRect( HWND hwnd, LPRECT rect )
 163 {
 164     BOOL ret = WIN_GetRectangles( hwnd, rect, NULL );
 165     if (ret)
 166     {
 167         MapWindowPoints( GetAncestor( hwnd, GA_PARENT ), 0, (POINT *)rect, 2 );
 168         TRACE( "hwnd %p (%d,%d)-(%d,%d)\n",
 169                hwnd, rect->left, rect->top, rect->right, rect->bottom);
 170     }
 171     return ret;
 172 }
 173
 174
 175 /***********************************************************************
 176  *              GetWindowRgn (USER32.@)
 177  */
 178 int WINAPI GetWindowRgn ( HWND hwnd, HRGN hrgn )
 179 {
 180     int nRet = ERROR;
 181     NTSTATUS status;
 182     HRGN win_rgn = 0;
 183     RGNDATA *data;
 184     size_t size = 256;
 185
 186     do
 187     {
 188         if (!(data = HeapAlloc( GetProcessHeap(), 0, sizeof(*data) + size - 1 )))
 189         {
 190             SetLastError( ERROR_OUTOFMEMORY );
 191             return ERROR;
 192         }
 193         SERVER_START_REQ( get_window_region )
 194         {
 195             req->window = hwnd;
 196             wine_server_set_reply( req, data->Buffer, size );
 197             if (!(status = wine_server_call( req )))
 198             {
 199                 size_t reply_size = wine_server_reply_size( reply );
 200                 if (reply_size)
 201                 {
 202                     data->rdh.dwSize   = sizeof(data->rdh);
 203                     data->rdh.iType    = RDH_RECTANGLES;
 204                     data->rdh.nCount   = reply_size / sizeof(RECT);
 205                     data->rdh.nRgnSize = reply_size;
 206                     win_rgn = ExtCreateRegion( NULL, size, data );
 207                 }
 208             }
 209             else size = reply->total_size;
 210         }
 211         SERVER_END_REQ;
 212         HeapFree( GetProcessHeap(), 0, data );
 213     } while (status == STATUS_BUFFER_OVERFLOW);
 214
 215     if (status) SetLastError( RtlNtStatusToDosError(status) );
 216     else if (win_rgn)
 217     {
 218         nRet = CombineRgn( hrgn, win_rgn, 0, RGN_COPY );
 219         DeleteObject( win_rgn );
 220     }
 221     return nRet;
 222 }
 223
 224
 225 /***********************************************************************
 226  *              SetWindowRgn (USER32.@)
 227  */
 228 int WINAPI SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL bRedraw )
 229 {
 230     static const RECT empty_rect;
 231     BOOL ret;
 232
 233     if (hrgn)
 234     {
 235         RGNDATA *data;
 236         DWORD size;
 237
 238         if (!(size = GetRegionData( hrgn, 0, NULL ))) return FALSE;
 239         if (!(data = HeapAlloc( GetProcessHeap(), 0, size ))) return FALSE;
 240         if (!GetRegionData( hrgn, size, data ))
 241         {
 242             HeapFree( GetProcessHeap(), 0, data );
 243             return FALSE;
 244         }
 245         SERVER_START_REQ( set_window_region )
 246         {
 247             req->window = hwnd;
 248             if (data->rdh.nCount)
 249                 wine_server_add_data( req, data->Buffer, data->rdh.nCount * sizeof(RECT) );
 250             else
 251                 wine_server_add_data( req, &empty_rect, sizeof(empty_rect) );
 252             ret = !wine_server_call_err( req );
 253         }
 254         SERVER_END_REQ;
 255     }
 256     else  /* clear existing region */
 257     {
 258         SERVER_START_REQ( set_window_region )
 259         {
 260             req->window = hwnd;
 261             ret = !wine_server_call_err( req );
 262         }
 263         SERVER_END_REQ;
 264     }
 265
 266     if (ret) ret = USER_Driver->pSetWindowRgn( hwnd, hrgn, bRedraw );
 267
 268     if (ret && bRedraw) RedrawWindow( hwnd, NULL, 0, RDW_FRAME | RDW_INVALIDATE | RDW_ERASE );
 269     return ret;
 270 }
 271
 272
 273 /***********************************************************************
 274  *              GetClientRect (USER32.@)
 275  */
 276 BOOL WINAPI GetClientRect( HWND hwnd, LPRECT rect )
 277 {
 278     BOOL ret;
 279
 280     if ((ret = WIN_GetRectangles( hwnd, NULL, rect )))
 281     {
 282         rect->right -= rect->left;
 283         rect->bottom -= rect->top;
 284         rect->left = rect->top = 0;
 285     }
 286     return ret;
 287 }
 288
 289
 290 /*******************************************************************
 291  *              ClientToScreen (USER32.@)
 292  */
 293 BOOL WINAPI ClientToScreen( HWND hwnd, LPPOINT lppnt )
 294 {
 295     MapWindowPoints( hwnd, 0, lppnt, 1 );
 296     return TRUE;
 297 }
 298
 299
 300 /*******************************************************************
 301  *              ScreenToClient (USER32.@)
 302  */
 303 BOOL WINAPI ScreenToClient( HWND hwnd, LPPOINT lppnt )
 304 {
 305     MapWindowPoints( 0, hwnd, lppnt, 1 );
 306     return TRUE;
 307 }
 308
 309
 310 /***********************************************************************
 311  *           list_children_from_point
 312  *
 313  * Get the list of children that can contain point from the server.
 314  * Point is in screen coordinates.
 315  * Returned list must be freed by caller.
 316  */
 317 static HWND *list_children_from_point( HWND hwnd, POINT pt )
 318 {
 319     HWND *list;
 320     int size = 32;
 321
 322     for (;;)
 323     {
 324         int count = 0;
 325
 326         if (!(list = HeapAlloc( GetProcessHeap(), 0, size * sizeof(HWND) ))) break;
 327
 328         SERVER_START_REQ( get_window_children_from_point )
 329         {
 330             req->parent = hwnd;
 331             req->x = pt.x;
 332             req->y = pt.y;
 333             wine_server_set_reply( req, list, (size-1) * sizeof(HWND) );
 334             if (!wine_server_call( req )) count = reply->count;
 335         }
 336         SERVER_END_REQ;
 337         if (count && count < size)
 338         {
 339             list[count] = 0;
 340             return list;
 341         }
 342         HeapFree( GetProcessHeap(), 0, list );
 343         if (!count) break;
 344         size = count + 1;  /* restart with a large enough buffer */
 345     }
 346     return NULL;
 347 }
 348
 349
 350 /***********************************************************************
 351  *           WINPOS_WindowFromPoint
 352  *
 353  * Find the window and hittest for a given point.
 354  */
 355 HWND WINPOS_WindowFromPoint( HWND hwndScope, POINT pt, INT *hittest )
 356 {
 357     int i, res;
 358     HWND ret, *list;
 359
 360     if (!hwndScope) hwndScope = GetDesktopWindow();
 361
 362     *hittest = HTNOWHERE;
 363
 364     if (!(list = list_children_from_point( hwndScope, pt ))) return 0;
 365
 366     /* now determine the hittest */
 367
 368     for (i = 0; list[i]; i++)
 369     {
 370         LONG style = GetWindowLongW( list[i], GWL_STYLE );
 371
 372         /* If window is minimized or disabled, return at once */
 373         if (style & WS_MINIMIZE)
 374         {
 375             *hittest = HTCAPTION;
 376             break;
 377         }
 378         if (style & WS_DISABLED)
 379         {
 380             *hittest = HTERROR;
 381             break;
 382         }
 383         /* Send WM_NCCHITTEST (if same thread) */
 384         if (!WIN_IsCurrentThread( list[i] ))
 385         {
 386             *hittest = HTCLIENT;
 387             break;
 388         }
 389         res = SendMessageW( list[i], WM_NCHITTEST, 0, MAKELONG(pt.x,pt.y) );
 390         if (res != HTTRANSPARENT)
 391         {
 392             *hittest = res;  /* Found the window */
 393             break;
 394         }
 395         /* continue search with next window in z-order */
 396     }
 397     ret = list[i];
 398     HeapFree( GetProcessHeap(), 0, list );
 399     TRACE( "scope %p (%d,%d) returning %p\n", hwndScope, pt.x, pt.y, ret );
 400     return ret;
 401 }
 402
 403
 404 /*******************************************************************
 405  *              WindowFromPoint (USER32.@)
 406  */
 407 HWND WINAPI WindowFromPoint( POINT pt )
 408 {
 409     INT hittest;
 410     return WINPOS_WindowFromPoint( 0, pt, &hittest );
 411 }
 412
 413
 414 /*******************************************************************
 415  *              ChildWindowFromPoint (USER32.@)
 416  */
 417 HWND WINAPI ChildWindowFromPoint( HWND hwndParent, POINT pt )
 418 {
 419     return ChildWindowFromPointEx( hwndParent, pt, CWP_ALL );
 420 }
 421
 422 /*******************************************************************
 423  *              ChildWindowFromPointEx (USER32.@)
 424  */
 425 HWND WINAPI ChildWindowFromPointEx( HWND hwndParent, POINT pt, UINT uFlags)
 426 {
 427     /* pt is in the client coordinates */
 428     HWND *list;
 429     int i;
 430     RECT rect;
 431     HWND retvalue;
 432
 433     GetClientRect( hwndParent, &rect );
 434     if (!PtInRect( &rect, pt )) return 0;
 435     if (!(list = WIN_ListChildren( hwndParent ))) return hwndParent;
 436
 437     for (i = 0; list[i]; i++)
 438     {
 439         if (!WIN_GetRectangles( list[i], &rect, NULL )) continue;
 440         if (!PtInRect( &rect, pt )) continue;
 441         if (uFlags & (CWP_SKIPINVISIBLE|CWP_SKIPDISABLED))
 442         {
 443             LONG style = GetWindowLongW( list[i], GWL_STYLE );
 444             if ((uFlags & CWP_SKIPINVISIBLE) && !(style & WS_VISIBLE)) continue;
 445             if ((uFlags & CWP_SKIPDISABLED) && (style & WS_DISABLED)) continue;
 446         }
 447         if (uFlags & CWP_SKIPTRANSPARENT)
 448         {
 449             if (GetWindowLongW( list[i], GWL_EXSTYLE ) & WS_EX_TRANSPARENT) continue;
 450         }
 451         break;
 452     }
 453     retvalue = list[i];
 454     HeapFree( GetProcessHeap(), 0, list );
 455     if (!retvalue) retvalue = hwndParent;
 456     return retvalue;
 457 }
 458
 459
 460 /*******************************************************************
 461  *         WINPOS_GetWinOffset
 462  *
 463  * Calculate the offset between the origin of the two windows. Used
 464  * to implement MapWindowPoints.
 465  */
 466 static void WINPOS_GetWinOffset( HWND hwndFrom, HWND hwndTo, POINT *offset )
 467 {
 468     WND * wndPtr;
 469
 470     offset->x = offset->y = 0;
 471
 472     /* Translate source window origin to screen coords */
 473     if (hwndFrom)
 474     {
 475         HWND hwnd = hwndFrom;
 476
 477         while (hwnd)
 478         {
 479             if (hwnd == hwndTo) return;
 480             if (!(wndPtr = WIN_GetPtr( hwnd )))
 481             {
 482                 ERR( "bad hwndFrom = %p\n", hwnd );
 483                 return;
 484             }
 485             if (wndPtr == WND_DESKTOP) break;
 486             if (wndPtr == WND_OTHER_PROCESS) goto other_process;
 487             offset->x += wndPtr->rectClient.left;
 488             offset->y += wndPtr->rectClient.top;
 489             hwnd = wndPtr->parent;
 490             WIN_ReleasePtr( wndPtr );
 491         }
 492     }
 493
 494     /* Translate origin to destination window coords */
 495     if (hwndTo)
 496     {
 497         HWND hwnd = hwndTo;
 498
 499         while (hwnd)
 500         {
 501             if (!(wndPtr = WIN_GetPtr( hwnd )))
 502             {
 503                 ERR( "bad hwndTo = %p\n", hwnd );
 504                 return;
 505             }
 506             if (wndPtr == WND_DESKTOP) break;
 507             if (wndPtr == WND_OTHER_PROCESS) goto other_process;
 508             offset->x -= wndPtr->rectClient.left;
 509             offset->y -= wndPtr->rectClient.top;
 510             hwnd = wndPtr->parent;
 511             WIN_ReleasePtr( wndPtr );
 512         }
 513     }
 514     return;
 515
 516  other_process:  /* one of the parents may belong to another process, do it the hard way */
 517     offset->x = offset->y = 0;
 518     SERVER_START_REQ( get_windows_offset )
 519     {
 520         req->from = hwndFrom;
 521         req->to   = hwndTo;
 522         if (!wine_server_call( req ))
 523         {
 524             offset->x = reply->x;
 525             offset->y = reply->y;
 526         }
 527     }
 528     SERVER_END_REQ;
 529 }
 530
 531
 532 /*******************************************************************
 533  *              MapWindowPoints (USER.258)
 534  */
 535 void WINAPI MapWindowPoints16( HWND16 hwndFrom, HWND16 hwndTo,
 536                                LPPOINT16 lppt, UINT16 count )
 537 {
 538     POINT offset;
 539
 540     WINPOS_GetWinOffset( WIN_Handle32(hwndFrom), WIN_Handle32(hwndTo), &offset );
 541     while (count--)
 542     {
 543         lppt->x += offset.x;
 544         lppt->y += offset.y;
 545         lppt++;
 546     }
 547 }
 548
 549
 550 /*******************************************************************
 551  *              MapWindowPoints (USER32.@)
 552  */
 553 INT WINAPI MapWindowPoints( HWND hwndFrom, HWND hwndTo, LPPOINT lppt, UINT count )
 554 {
 555     POINT offset;
 556
 557     WINPOS_GetWinOffset( hwndFrom, hwndTo, &offset );
 558     while (count--)
 559     {
 560         lppt->x += offset.x;
 561         lppt->y += offset.y;
 562         lppt++;
 563     }
 564     return MAKELONG( LOWORD(offset.x), LOWORD(offset.y) );
 565 }
 566
 567
 568 /***********************************************************************
 569  *              IsIconic (USER32.@)
 570  */
 571 BOOL WINAPI IsIconic(HWND hWnd)
 572 {
 573     return (GetWindowLongW( hWnd, GWL_STYLE ) & WS_MINIMIZE) != 0;
 574 }
 575
 576
 577 /***********************************************************************
 578  *              IsZoomed (USER32.@)
 579  */
 580 BOOL WINAPI IsZoomed(HWND hWnd)
 581 {
 582     return (GetWindowLongW( hWnd, GWL_STYLE ) & WS_MAXIMIZE) != 0;
 583 }
 584
 585
 586 /*******************************************************************
 587  *              AllowSetForegroundWindow (USER32.@)
 588  */
 589 BOOL WINAPI AllowSetForegroundWindow( DWORD procid )
 590 {
 591     /* FIXME: If Win98/2000 style SetForegroundWindow behavior is
 592      * implemented, then fix this function. */
 593     return TRUE;
 594 }
 595
 596
 597 /*******************************************************************
 598  *              LockSetForegroundWindow (USER32.@)
 599  */
 600 BOOL WINAPI LockSetForegroundWindow( UINT lockcode )
 601 {
 602     /* FIXME: If Win98/2000 style SetForegroundWindow behavior is
 603      * implemented, then fix this function. */
 604     return TRUE;
 605 }
 606
 607
 608 /***********************************************************************
 609  *              BringWindowToTop (USER32.@)
 610  */
 611 BOOL WINAPI BringWindowToTop( HWND hwnd )
 612 {
 613     return SetWindowPos( hwnd, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE );
 614 }
 615
 616
 617 /***********************************************************************
 618  *              MoveWindow (USER32.@)
 619  */
 620 BOOL WINAPI MoveWindow( HWND hwnd, INT x, INT y, INT cx, INT cy,
 621                             BOOL repaint )
 622 {
 623     int flags = SWP_NOZORDER | SWP_NOACTIVATE;
 624     if (!repaint) flags |= SWP_NOREDRAW;
 625     TRACE("%p %d,%d %dx%d %d\n", hwnd, x, y, cx, cy, repaint );
 626     return SetWindowPos( hwnd, 0, x, y, cx, cy, flags );
 627 }
 628
 629 /***********************************************************************
 630  *           WINPOS_InitInternalPos
 631  */
 632 static LPINTERNALPOS WINPOS_InitInternalPos( WND* wnd )
 633 {
 634     LPINTERNALPOS lpPos = get_internal_pos( wnd->hwndSelf );
 635     if( !lpPos )
 636     {
 637         /* this happens when the window is minimized/maximized
 638          * for the first time (rectWindow is not adjusted yet) */
 639
 640         lpPos = HeapAlloc( GetProcessHeap(), 0, sizeof(INTERNALPOS) );
 641         if( !lpPos ) return NULL;
 642
 643         set_internal_pos( wnd->hwndSelf, lpPos );
 644         lpPos->hwndIconTitle = 0; /* defer until needs to be shown */
 645         lpPos->rectNormal.left   = wnd->rectWindow.left;
 646         lpPos->rectNormal.top    = wnd->rectWindow.top;
 647         lpPos->rectNormal.right  = wnd->rectWindow.right;
 648         lpPos->rectNormal.bottom = wnd->rectWindow.bottom;
 649         lpPos->ptIconPos.x = lpPos->ptIconPos.y = -1;
 650         lpPos->ptMaxPos.x = lpPos->ptMaxPos.y = -1;
 651     }
 652
 653     if( wnd->dwStyle & WS_MINIMIZE )
 654     {
 655         lpPos->ptIconPos.x = wnd->rectWindow.left;
 656         lpPos->ptIconPos.y = wnd->rectWindow.top;
 657     }
 658     else if( wnd->dwStyle & WS_MAXIMIZE )
 659     {
 660         lpPos->ptMaxPos.x = wnd->rectWindow.left;
 661         lpPos->ptMaxPos.y = wnd->rectWindow.top;
 662     }
 663     else
 664     {
 665         lpPos->rectNormal.left   = wnd->rectWindow.left;
 666         lpPos->rectNormal.top    = wnd->rectWindow.top;
 667         lpPos->rectNormal.right  = wnd->rectWindow.right;
 668         lpPos->rectNormal.bottom = wnd->rectWindow.bottom;
 669     }
 670     return lpPos;
 671 }
 672
 673 /***********************************************************************
 674  *           WINPOS_RedrawIconTitle
 675  */
 676 BOOL WINPOS_RedrawIconTitle( HWND hWnd )
 677 {
 678     LPINTERNALPOS lpPos = get_internal_pos( hWnd );
 679     if( lpPos )
 680     {
 681         if( lpPos->hwndIconTitle )
 682         {
 683             SendMessageW( lpPos->hwndIconTitle, WM_SHOWWINDOW, TRUE, 0);
 684             InvalidateRect( lpPos->hwndIconTitle, NULL, TRUE );
 685             return TRUE;
 686         }
 687     }
 688     return FALSE;
 689 }
 690
 691 /***********************************************************************
 692  *           WINPOS_ShowIconTitle
 693  */
 694 BOOL WINPOS_ShowIconTitle( HWND hwnd, BOOL bShow )
 695 {
 696     LPINTERNALPOS lpPos = get_internal_pos( hwnd );
 697
 698     if (lpPos && !GetPropA( hwnd, "__wine_x11_managed" ))
 699     {
 700         HWND title = lpPos->hwndIconTitle;
 701
 702         TRACE("%p %i\n", hwnd, (bShow != 0) );
 703
 704         if( !title )
 705             lpPos->hwndIconTitle = title = ICONTITLE_Create( hwnd );
 706         if( bShow )
 707         {
 708             if (!IsWindowVisible(title))
 709             {
 710                 SendMessageW( title, WM_SHOWWINDOW, TRUE, 0 );
 711                 SetWindowPos( title, 0, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE |
 712                               SWP_NOACTIVATE | SWP_NOZORDER | SWP_SHOWWINDOW );
 713             }
 714         }
 715         else ShowWindow( title, SW_HIDE );
 716     }
 717     return FALSE;
 718 }
 719
 720 /*******************************************************************
 721  *           WINPOS_GetMinMaxInfo
 722  *
 723  * Get the minimized and maximized information for a window.
 724  */
 725 void WINPOS_GetMinMaxInfo( HWND hwnd, POINT *maxSize, POINT *maxPos,
 726                            POINT *minTrack, POINT *maxTrack )
 727 {
 728     LPINTERNALPOS lpPos;
 729     MINMAXINFO MinMax;
 730     INT xinc, yinc;
 731     LONG style = GetWindowLongA( hwnd, GWL_STYLE );
 732     LONG exstyle = GetWindowLongA( hwnd, GWL_EXSTYLE );
 733     RECT rc;
 734
 735     /* Compute default values */
 736
 737     GetWindowRect(hwnd, &rc);
 738     MinMax.ptReserved.x = rc.left;
 739     MinMax.ptReserved.y = rc.top;
 740
 741     if (style & WS_CHILD)
 742     {
 743         if ((style & WS_CAPTION) == WS_CAPTION)
 744             style &= ~WS_BORDER; /* WS_CAPTION = WS_DLGFRAME | WS_BORDER */
 745
 746         GetClientRect(GetAncestor(hwnd,GA_PARENT), &rc);
 747         AdjustWindowRectEx(&rc, style, ((style & WS_POPUP) && GetMenu(hwnd)), exstyle);
 748
 749         /* avoid calculating this twice */
 750         style &= ~(WS_DLGFRAME | WS_BORDER | WS_THICKFRAME);
 751
 752         MinMax.ptMaxSize.x = rc.right - rc.left;
 753         MinMax.ptMaxSize.y = rc.bottom - rc.top;
 754     }
 755     else
 756     {
 757         MinMax.ptMaxSize.x = GetSystemMetrics(SM_CXSCREEN);
 758         MinMax.ptMaxSize.y = GetSystemMetrics(SM_CYSCREEN);
 759     }
 760     MinMax.ptMinTrackSize.x = GetSystemMetrics(SM_CXMINTRACK);
 761     MinMax.ptMinTrackSize.y = GetSystemMetrics(SM_CYMINTRACK);
 762     MinMax.ptMaxTrackSize.x = GetSystemMetrics(SM_CXSCREEN) + 2*GetSystemMetrics(SM_CXFRAME);
 763     MinMax.ptMaxTrackSize.y = GetSystemMetrics(SM_CYSCREEN) + 2*GetSystemMetrics(SM_CYFRAME);
 764
 765     if (HAS_DLGFRAME( style, exstyle ))
 766     {
 767         xinc = GetSystemMetrics(SM_CXDLGFRAME);
 768         yinc = GetSystemMetrics(SM_CYDLGFRAME);
 769     }
 770     else
 771     {
 772         xinc = yinc = 0;
 773         if (HAS_THICKFRAME(style))
 774         {
 775             xinc += GetSystemMetrics(SM_CXFRAME);
 776             yinc += GetSystemMetrics(SM_CYFRAME);
 777         }
 778         if (style & WS_BORDER)
 779         {
 780             xinc += GetSystemMetrics(SM_CXBORDER);
 781             yinc += GetSystemMetrics(SM_CYBORDER);
 782         }
 783     }
 784     MinMax.ptMaxSize.x += 2 * xinc;
 785     MinMax.ptMaxSize.y += 2 * yinc;
 786
 787     lpPos = get_internal_pos( hwnd );
 788     if( lpPos && !EMPTYPOINT(lpPos->ptMaxPos) )
 789     {
 790         MinMax.ptMaxPosition.x = lpPos->ptMaxPos.x;
 791         MinMax.ptMaxPosition.y = lpPos->ptMaxPos.y;
 792     }
 793     else
 794     {
 795         MinMax.ptMaxPosition.x = -xinc;
 796         MinMax.ptMaxPosition.y = -yinc;
 797     }
 798
 799     SendMessageW( hwnd, WM_GETMINMAXINFO, 0, (LPARAM)&MinMax );
 800
 801       /* Some sanity checks */
 802
 803     TRACE("%d %d / %d %d / %d %d / %d %d\n",
 804                       MinMax.ptMaxSize.x, MinMax.ptMaxSize.y,
 805                       MinMax.ptMaxPosition.x, MinMax.ptMaxPosition.y,
 806                       MinMax.ptMaxTrackSize.x, MinMax.ptMaxTrackSize.y,
 807                       MinMax.ptMinTrackSize.x, MinMax.ptMinTrackSize.y);
 808     MinMax.ptMaxTrackSize.x = max( MinMax.ptMaxTrackSize.x,
 809                                    MinMax.ptMinTrackSize.x );
 810     MinMax.ptMaxTrackSize.y = max( MinMax.ptMaxTrackSize.y,
 811                                    MinMax.ptMinTrackSize.y );
 812
 813     if (maxSize) *maxSize = MinMax.ptMaxSize;
 814     if (maxPos) *maxPos = MinMax.ptMaxPosition;
 815     if (minTrack) *minTrack = MinMax.ptMinTrackSize;
 816     if (maxTrack) *maxTrack = MinMax.ptMaxTrackSize;
 817 }
 818
 819 /***********************************************************************
 820  *              ShowWindowAsync (USER32.@)
 821  *
 822  * doesn't wait; returns immediately.
 823  * used by threads to toggle windows in other (possibly hanging) threads
 824  */
 825 BOOL WINAPI ShowWindowAsync( HWND hwnd, INT cmd )
 826 {
 827     HWND full_handle;
 828
 829     if (is_broadcast(hwnd))
 830     {
 831         SetLastError( ERROR_INVALID_PARAMETER );
 832         return FALSE;
 833     }
 834
 835     if ((full_handle = WIN_IsCurrentThread( hwnd )))
 836         return USER_Driver->pShowWindow( full_handle, cmd );
 837
 838     return SendNotifyMessageW( hwnd, WM_WINE_SHOWWINDOW, cmd, 0 );
 839 }
 840
 841
 842 /***********************************************************************
 843  *              ShowWindow (USER32.@)
 844  */
 845 BOOL WINAPI ShowWindow( HWND hwnd, INT cmd )
 846 {
 847     HWND full_handle;
 848
 849     if (is_broadcast(hwnd))
 850     {
 851         SetLastError( ERROR_INVALID_PARAMETER );
 852         return FALSE;
 853     }
 854     if ((full_handle = WIN_IsCurrentThread( hwnd )))
 855         return USER_Driver->pShowWindow( full_handle, cmd );
 856
 857     return SendMessageW( hwnd, WM_WINE_SHOWWINDOW, cmd, 0 );
 858 }
 859
 860
 861 /***********************************************************************
 862  *              GetInternalWindowPos (USER32.@)
 863  */
 864 UINT WINAPI GetInternalWindowPos( HWND hwnd, LPRECT rectWnd,
 865                                       LPPOINT ptIcon )
 866 {
 867     WINDOWPLACEMENT wndpl;
 868     if (GetWindowPlacement( hwnd, &wndpl ))
 869     {
 870         if (rectWnd) *rectWnd = wndpl.rcNormalPosition;
 871         if (ptIcon)  *ptIcon = wndpl.ptMinPosition;
 872         return wndpl.showCmd;
 873     }
 874     return 0;
 875 }
 876
 877
 878 /***********************************************************************
 879  *              GetWindowPlacement (USER32.@)
 880  *
 881  * Win95:
 882  * Fails if wndpl->length of Win95 (!) apps is invalid.
 883  */
 884 BOOL WINAPI GetWindowPlacement( HWND hwnd, WINDOWPLACEMENT *wndpl )
 885 {
 886     WND *pWnd = WIN_GetPtr( hwnd );
 887     LPINTERNALPOS lpPos;
 888
 889     if (!pWnd || pWnd == WND_DESKTOP) return FALSE;
 890     if (pWnd == WND_OTHER_PROCESS)
 891     {
 892         if (IsWindow( hwnd )) FIXME( "not supported on other process window %p\n", hwnd );
 893         return FALSE;
 894     }
 895
 896     lpPos = WINPOS_InitInternalPos( pWnd );
 897     wndpl->length  = sizeof(*wndpl);
 898     if( pWnd->dwStyle & WS_MINIMIZE )
 899         wndpl->showCmd = SW_SHOWMINIMIZED;
 900     else
 901         wndpl->showCmd = ( pWnd->dwStyle & WS_MAXIMIZE ) ? SW_SHOWMAXIMIZED : SW_SHOWNORMAL ;
 902     if( pWnd->flags & WIN_RESTORE_MAX )
 903         wndpl->flags = WPF_RESTORETOMAXIMIZED;
 904     else
 905         wndpl->flags = 0;
 906     wndpl->ptMinPosition.x = lpPos->ptIconPos.x;
 907     wndpl->ptMinPosition.y = lpPos->ptIconPos.y;
 908     wndpl->ptMaxPosition.x = lpPos->ptMaxPos.x;
 909     wndpl->ptMaxPosition.y = lpPos->ptMaxPos.y;
 910     wndpl->rcNormalPosition.left   = lpPos->rectNormal.left;
 911     wndpl->rcNormalPosition.top    = lpPos->rectNormal.top;
 912     wndpl->rcNormalPosition.right  = lpPos->rectNormal.right;
 913     wndpl->rcNormalPosition.bottom = lpPos->rectNormal.bottom;
 914     WIN_ReleasePtr( pWnd );
 915     return TRUE;
 916 }
 917
 918
 919 /***********************************************************************
 920  *           WINPOS_SetPlacement
 921  */
 922 static BOOL WINPOS_SetPlacement( HWND hwnd, const WINDOWPLACEMENT *wndpl, UINT flags )
 923 {
 924     LPINTERNALPOS lpPos;
 925     DWORD style;
 926     WND *pWnd = WIN_GetPtr( hwnd );
 927
 928     if (!pWnd || pWnd == WND_OTHER_PROCESS || pWnd == WND_DESKTOP) return FALSE;
 929     lpPos = WINPOS_InitInternalPos( pWnd );
 930
 931     if( flags & PLACE_MIN )
 932     {
 933         lpPos->ptIconPos.x = wndpl->ptMinPosition.x;
 934         lpPos->ptIconPos.y = wndpl->ptMinPosition.y;
 935     }
 936     if( flags & PLACE_MAX )
 937     {
 938         lpPos->ptMaxPos.x = wndpl->ptMaxPosition.x;
 939         lpPos->ptMaxPos.y = wndpl->ptMaxPosition.y;
 940     }
 941     if( flags & PLACE_RECT)
 942     {
 943         lpPos->rectNormal.left   = wndpl->rcNormalPosition.left;
 944         lpPos->rectNormal.top    = wndpl->rcNormalPosition.top;
 945         lpPos->rectNormal.right  = wndpl->rcNormalPosition.right;
 946         lpPos->rectNormal.bottom = wndpl->rcNormalPosition.bottom;
 947     }
 948
 949     style = pWnd->dwStyle;
 950     WIN_ReleasePtr( pWnd );
 951
 952     if( style & WS_MINIMIZE )
 953     {
 954         WINPOS_ShowIconTitle( hwnd, FALSE );
 955         if( wndpl->flags & WPF_SETMINPOSITION && !EMPTYPOINT(lpPos->ptIconPos))
 956             SetWindowPos( hwnd, 0, lpPos->ptIconPos.x, lpPos->ptIconPos.y,
 957                           0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 958     }
 959     else if( style & WS_MAXIMIZE )
 960     {
 961         if( !EMPTYPOINT(lpPos->ptMaxPos) )
 962             SetWindowPos( hwnd, 0, lpPos->ptMaxPos.x, lpPos->ptMaxPos.y,
 963                           0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 964     }
 965     else if( flags & PLACE_RECT )
 966         SetWindowPos( hwnd, 0, lpPos->rectNormal.left, lpPos->rectNormal.top,
 967                       lpPos->rectNormal.right - lpPos->rectNormal.left,
 968                       lpPos->rectNormal.bottom - lpPos->rectNormal.top,
 969                       SWP_NOZORDER | SWP_NOACTIVATE );
 970
 971     ShowWindow( hwnd, wndpl->showCmd );
 972
 973     if (IsIconic( hwnd ))
 974     {
 975         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_VISIBLE) WINPOS_ShowIconTitle( hwnd, TRUE );
 976
 977         /* SDK: ...valid only the next time... */
 978         if( wndpl->flags & WPF_RESTORETOMAXIMIZED )
 979         {
 980             pWnd = WIN_GetPtr( hwnd );
 981             if (pWnd && pWnd != WND_OTHER_PROCESS)
 982             {
 983                 pWnd->flags |= WIN_RESTORE_MAX;
 984                 WIN_ReleasePtr( pWnd );
 985             }
 986         }
 987     }
 988     return TRUE;
 989 }
 990
 991
 992 /***********************************************************************
 993  *              SetWindowPlacement (USER32.@)
 994  *
 995  * Win95:
 996  * Fails if wndpl->length of Win95 (!) apps is invalid.
 997  */
 998 BOOL WINAPI SetWindowPlacement( HWND hwnd, const WINDOWPLACEMENT *wpl )
 999 {
1000     if (!wpl) return FALSE;
1001     return WINPOS_SetPlacement( hwnd, wpl, PLACE_MIN | PLACE_MAX | PLACE_RECT );
1002 }
1003
1004
1005 /***********************************************************************
1006  *              AnimateWindow (USER32.@)
1007  *              Shows/Hides a window with an animation
1008  *              NO ANIMATION YET
1009  */
1010 BOOL WINAPI AnimateWindow(HWND hwnd, DWORD dwTime, DWORD dwFlags)
1011 {
1012         FIXME("partial stub\n");
1013
1014         /* If trying to show/hide and it's already   *
1015          * shown/hidden or invalid window, fail with *
1016          * invalid parameter                         */
1017         if(!IsWindow(hwnd) ||
1018            (IsWindowVisible(hwnd) && !(dwFlags & AW_HIDE)) ||
1019            (!IsWindowVisible(hwnd) && (dwFlags & AW_HIDE)))
1020         {
1021                 SetLastError(ERROR_INVALID_PARAMETER);
1022                 return FALSE;
1023         }
1024
1025         ShowWindow(hwnd, (dwFlags & AW_HIDE) ? SW_HIDE : ((dwFlags & AW_ACTIVATE) ? SW_SHOW : SW_SHOWNA));
1026
1027         return TRUE;
1028 }
1029
1030 /***********************************************************************
1031  *              SetInternalWindowPos (USER32.@)
1032  */
1033 void WINAPI SetInternalWindowPos( HWND hwnd, UINT showCmd,
1034                                     LPRECT rect, LPPOINT pt )
1035 {
1036     if( IsWindow(hwnd) )
1037     {
1038         WINDOWPLACEMENT wndpl;
1039         UINT flags;
1040
1041         wndpl.length  = sizeof(wndpl);
1042         wndpl.showCmd = showCmd;
1043         wndpl.flags = flags = 0;
1044
1045         if( pt )
1046         {
1047             flags |= PLACE_MIN;
1048             wndpl.flags |= WPF_SETMINPOSITION;
1049             wndpl.ptMinPosition = *pt;
1050         }
1051         if( rect )
1052         {
1053             flags |= PLACE_RECT;
1054             wndpl.rcNormalPosition = *rect;
1055         }
1056         WINPOS_SetPlacement( hwnd, &wndpl, flags );
1057     }
1058 }
1059
1060
1061 /*******************************************************************
1062  *         can_activate_window
1063  *
1064  * Check if we can activate the specified window.
1065  */
1066 static BOOL can_activate_window( HWND hwnd )
1067 {
1068     LONG style;
1069
1070     if (!hwnd) return FALSE;
1071     style = GetWindowLongW( hwnd, GWL_STYLE );
1072     if (!(style & WS_VISIBLE)) return FALSE;
1073     if ((style & (WS_POPUP|WS_CHILD)) == WS_CHILD) return FALSE;
1074     return !(style & WS_DISABLED);
1075 }
1076
1077
1078 /*******************************************************************
1079  *         WINPOS_ActivateOtherWindow
1080  *
1081  *  Activates window other than pWnd.
1082  */
1083 void WINPOS_ActivateOtherWindow(HWND hwnd)
1084 {
1085     HWND hwndTo, fg;
1086
1087     if ((GetWindowLongW( hwnd, GWL_STYLE ) & WS_POPUP) && (hwndTo = GetWindow( hwnd, GW_OWNER )))
1088     {
1089         hwndTo = GetAncestor( hwndTo, GA_ROOT );
1090         if (can_activate_window( hwndTo )) goto done;
1091     }
1092
1093     hwndTo = hwnd;
1094     for (;;)
1095     {
1096         if (!(hwndTo = GetWindow( hwndTo, GW_HWNDNEXT ))) break;
1097         if (can_activate_window( hwndTo )) break;
1098     }
1099
1100  done:
1101     fg = GetForegroundWindow();
1102     TRACE("win = %p fg = %p\n", hwndTo, fg);
1103     if (!fg || (hwnd == fg))
1104     {
1105         if (SetForegroundWindow( hwndTo )) return;
1106     }
1107     if (!SetActiveWindow( hwndTo )) SetActiveWindow(0);
1108 }
1109
1110
1111 /***********************************************************************
1112  *           WINPOS_HandleWindowPosChanging
1113  *
1114  * Default handling for a WM_WINDOWPOSCHANGING. Called from DefWindowProc().
1115  */
1116 LONG WINPOS_HandleWindowPosChanging( HWND hwnd, WINDOWPOS *winpos )
1117 {
1118     POINT minTrack, maxTrack;
1119     LONG style = GetWindowLongW( hwnd, GWL_STYLE );
1120
1121     if (winpos->flags & SWP_NOSIZE) return 0;
1122     if ((style & WS_THICKFRAME) || ((style & (WS_POPUP | WS_CHILD)) == 0))
1123     {
1124         WINPOS_GetMinMaxInfo( hwnd, NULL, NULL, &minTrack, &maxTrack );
1125         if (winpos->cx > maxTrack.x) winpos->cx = maxTrack.x;
1126         if (winpos->cy > maxTrack.y) winpos->cy = maxTrack.y;
1127         if (!(style & WS_MINIMIZE))
1128         {
1129             if (winpos->cx < minTrack.x ) winpos->cx = minTrack.x;
1130             if (winpos->cy < minTrack.y ) winpos->cy = minTrack.y;
1131         }
1132     }
1133     return 0;
1134 }
1135
1136
1137 /***********************************************************************
1138  *           dump_winpos_flags
1139  */
1140 static void dump_winpos_flags(UINT flags)
1141 {
1142     TRACE("flags:");
1143     if(flags & SWP_NOSIZE) TRACE(" SWP_NOSIZE");
1144     if(flags & SWP_NOMOVE) TRACE(" SWP_NOMOVE");
1145     if(flags & SWP_NOZORDER) TRACE(" SWP_NOZORDER");
1146     if(flags & SWP_NOREDRAW) TRACE(" SWP_NOREDRAW");
1147     if(flags & SWP_NOACTIVATE) TRACE(" SWP_NOACTIVATE");
1148     if(flags & SWP_FRAMECHANGED) TRACE(" SWP_FRAMECHANGED");
1149     if(flags & SWP_SHOWWINDOW) TRACE(" SWP_SHOWWINDOW");
1150     if(flags & SWP_HIDEWINDOW) TRACE(" SWP_HIDEWINDOW");
1151     if(flags & SWP_NOCOPYBITS) TRACE(" SWP_NOCOPYBITS");
1152     if(flags & SWP_NOOWNERZORDER) TRACE(" SWP_NOOWNERZORDER");
1153     if(flags & SWP_NOSENDCHANGING) TRACE(" SWP_NOSENDCHANGING");
1154     if(flags & SWP_DEFERERASE) TRACE(" SWP_DEFERERASE");
1155     if(flags & SWP_ASYNCWINDOWPOS) TRACE(" SWP_ASYNCWINDOWPOS");
1156
1157 #define DUMPED_FLAGS \
1158     (SWP_NOSIZE | \
1159     SWP_NOMOVE | \
1160     SWP_NOZORDER | \
1161     SWP_NOREDRAW | \
1162     SWP_NOACTIVATE | \
1163     SWP_FRAMECHANGED | \
1164     SWP_SHOWWINDOW | \
1165     SWP_HIDEWINDOW | \
1166     SWP_NOCOPYBITS | \
1167     SWP_NOOWNERZORDER | \
1168     SWP_NOSENDCHANGING | \
1169     SWP_DEFERERASE | \
1170     SWP_ASYNCWINDOWPOS)
1171
1172     if(flags & ~DUMPED_FLAGS) TRACE(" %08x", flags & ~DUMPED_FLAGS);
1173     TRACE("\n");
1174 #undef DUMPED_FLAGS
1175 }
1176
1177 /***********************************************************************
1178  *              SetWindowPos (USER32.@)
1179  */
1180 BOOL WINAPI SetWindowPos( HWND hwnd, HWND hwndInsertAfter,
1181                           INT x, INT y, INT cx, INT cy, UINT flags )
1182 {
1183     WINDOWPOS winpos;
1184
1185     TRACE("hwnd %p, after %p, %d,%d (%dx%d), flags %08x\n",
1186           hwnd, hwndInsertAfter, x, y, cx, cy, flags);
1187     if(TRACE_ON(win)) dump_winpos_flags(flags);
1188
1189     if (is_broadcast(hwnd))
1190     {
1191         SetLastError( ERROR_INVALID_PARAMETER );
1192         return FALSE;
1193     }
1194
1195     winpos.hwnd = WIN_GetFullHandle(hwnd);
1196     winpos.hwndInsertAfter = WIN_GetFullHandle(hwndInsertAfter);
1197     winpos.x = x;
1198     winpos.y = y;
1199     winpos.cx = cx;
1200     winpos.cy = cy;
1201     winpos.flags = flags;
1202     if (WIN_IsCurrentThread( hwnd ))
1203         return USER_Driver->pSetWindowPos( &winpos );
1204
1205     return SendMessageW( winpos.hwnd, WM_WINE_SETWINDOWPOS, 0, (LPARAM)&winpos );
1206 }
1207
1208
1209 /***********************************************************************
1210  *              BeginDeferWindowPos (USER32.@)
1211  */
1212 HDWP WINAPI BeginDeferWindowPos( INT count )
1213 {
1214     HDWP handle;
1215     DWP *pDWP;
1216
1217     TRACE("%d\n", count);
1218
1219     if (count < 0)
1220     {
1221         SetLastError(ERROR_INVALID_PARAMETER);
1222         return 0;
1223     }
1224     /* Windows allows zero count, in which case it allocates context for 8 moves */
1225     if (count == 0) count = 8;
1226
1227     handle = USER_HEAP_ALLOC( sizeof(DWP) + (count-1)*sizeof(WINDOWPOS) );
1228     if (!handle) return 0;
1229     pDWP = (DWP *) USER_HEAP_LIN_ADDR( handle );
1230     pDWP->actualCount    = 0;
1231     pDWP->suggestedCount = count;
1232     pDWP->valid          = TRUE;
1233     pDWP->wMagic         = DWP_MAGIC;
1234     pDWP->hwndParent     = 0;
1235
1236     TRACE("returning hdwp %p\n", handle);
1237     return handle;
1238 }
1239
1240
1241 /***********************************************************************
1242  *              DeferWindowPos (USER32.@)
1243  */
1244 HDWP WINAPI DeferWindowPos( HDWP hdwp, HWND hwnd, HWND hwndAfter,
1245                                 INT x, INT y, INT cx, INT cy,
1246                                 UINT flags )
1247 {
1248     DWP *pDWP;
1249     int i;
1250     HDWP newhdwp = hdwp,retvalue;
1251
1252     TRACE("hdwp %p, hwnd %p, after %p, %d,%d (%dx%d), flags %08x\n",
1253           hdwp, hwnd, hwndAfter, x, y, cx, cy, flags);
1254
1255     hwnd = WIN_GetFullHandle( hwnd );
1256     if (hwnd == GetDesktopWindow()) return 0;
1257
1258     if (!(pDWP = USER_HEAP_LIN_ADDR( hdwp ))) return 0;
1259
1260     USER_Lock();
1261
1262     for (i = 0; i < pDWP->actualCount; i++)
1263     {
1264         if (pDWP->winPos[i].hwnd == hwnd)
1265         {
1266               /* Merge with the other changes */
1267             if (!(flags & SWP_NOZORDER))
1268             {
1269                 pDWP->winPos[i].hwndInsertAfter = WIN_GetFullHandle(hwndAfter);
1270             }
1271             if (!(flags & SWP_NOMOVE))
1272             {
1273                 pDWP->winPos[i].x = x;
1274                 pDWP->winPos[i].y = y;
1275             }
1276             if (!(flags & SWP_NOSIZE))
1277             {
1278                 pDWP->winPos[i].cx = cx;
1279                 pDWP->winPos[i].cy = cy;
1280             }
1281             pDWP->winPos[i].flags &= flags | ~(SWP_NOSIZE | SWP_NOMOVE |
1282                                                SWP_NOZORDER | SWP_NOREDRAW |
1283                                                SWP_NOACTIVATE | SWP_NOCOPYBITS|
1284                                                SWP_NOOWNERZORDER);
1285             pDWP->winPos[i].flags |= flags & (SWP_SHOWWINDOW | SWP_HIDEWINDOW |
1286                                               SWP_FRAMECHANGED);
1287             retvalue = hdwp;
1288             goto END;
1289         }
1290     }
1291     if (pDWP->actualCount >= pDWP->suggestedCount)
1292     {
1293         newhdwp = USER_HEAP_REALLOC( hdwp,
1294                       sizeof(DWP) + pDWP->suggestedCount*sizeof(WINDOWPOS) );
1295         if (!newhdwp)
1296         {
1297             retvalue = 0;
1298             goto END;
1299         }
1300         pDWP = (DWP *) USER_HEAP_LIN_ADDR( newhdwp );
1301         pDWP->suggestedCount++;
1302     }
1303     pDWP->winPos[pDWP->actualCount].hwnd = hwnd;
1304     pDWP->winPos[pDWP->actualCount].hwndInsertAfter = hwndAfter;
1305     pDWP->winPos[pDWP->actualCount].x = x;
1306     pDWP->winPos[pDWP->actualCount].y = y;
1307     pDWP->winPos[pDWP->actualCount].cx = cx;
1308     pDWP->winPos[pDWP->actualCount].cy = cy;
1309     pDWP->winPos[pDWP->actualCount].flags = flags;
1310     pDWP->actualCount++;
1311     retvalue = newhdwp;
1312 END:
1313     USER_Unlock();
1314     return retvalue;
1315 }
1316
1317
1318 /***********************************************************************
1319  *              EndDeferWindowPos (USER32.@)
1320  */
1321 BOOL WINAPI EndDeferWindowPos( HDWP hdwp )
1322 {
1323     DWP *pDWP;
1324     WINDOWPOS *winpos;
1325     BOOL res = TRUE;
1326     int i;
1327
1328     TRACE("%p\n", hdwp);
1329
1330     pDWP = (DWP *) USER_HEAP_LIN_ADDR( hdwp );
1331     if (!pDWP) return FALSE;
1332     for (i = 0, winpos = pDWP->winPos; i < pDWP->actualCount; i++, winpos++)
1333     {
1334         TRACE("hwnd %p, after %p, %d,%d (%dx%d), flags %08x\n",
1335                winpos->hwnd, winpos->hwndInsertAfter, winpos->x, winpos->y,
1336                winpos->cx, winpos->cy, winpos->flags);
1337
1338         if (!(res = USER_Driver->pSetWindowPos( winpos ))) break;
1339     }
1340     USER_HEAP_FREE( hdwp );
1341     return res;
1342 }
1343
1344
1345 /***********************************************************************
1346  *              TileChildWindows (USER.199)
1347  */
1348 void WINAPI TileChildWindows16( HWND16 parent, WORD action )
1349 {
1350     FIXME("(%04x, %d): stub\n", parent, action);
1351 }
1352
1353 /***********************************************************************
1354  *              CascadeChildWindows (USER.198)
1355  */
1356 void WINAPI CascadeChildWindows16( HWND16 parent, WORD action )
1357 {
1358     FIXME("(%04x, %d): stub\n", parent, action);
1359 }