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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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 "winpos.h"
  40 #include "wine/debug.h"
  41
  42 WINE_DEFAULT_DEBUG_CHANNEL(win);
  43
  44 #define HAS_DLGFRAME(style,exStyle) \
  45     (((exStyle) & WS_EX_DLGMODALFRAME) || \
  46      (((style) & WS_DLGFRAME) && !((style) & WS_BORDER)))
  47
  48 #define HAS_THICKFRAME(style) \
  49     (((style) & WS_THICKFRAME) && \
  50      !(((style) & (WS_DLGFRAME|WS_BORDER)) == WS_DLGFRAME))
  51
  52 #define EMPTYPOINT(pt)          ((*(LONG*)&(pt)) == -1)
  53
  54 #define PLACE_MIN               0x0001
  55 #define PLACE_MAX               0x0002
  56 #define PLACE_RECT              0x0004
  57
  58
  59 #define DWP_MAGIC  ((INT)('W' | ('P' << 8) | ('O' << 16) | ('S' << 24)))
  60
  61 typedef struct
  62 {
  63     INT       actualCount;
  64     INT       suggestedCount;
  65     BOOL      valid;
  66     INT       wMagic;
  67     HWND      hwndParent;
  68     WINDOWPOS winPos[1];
  69 } DWP;
  70
  71 typedef struct
  72 {
  73     RECT16   rectNormal;
  74     POINT16  ptIconPos;
  75     POINT16  ptMaxPos;
  76     HWND     hwndIconTitle;
  77 } INTERNALPOS, *LPINTERNALPOS;
  78
  79 /* ----- internal functions ----- */
  80
  81 static inline INTERNALPOS *get_internal_pos( HWND hwnd )
  82 {
  83     return GetPropA( hwnd, "SysIP" );
  84 }
  85
  86 static inline void set_internal_pos( HWND hwnd, INTERNALPOS *pos )
  87 {
  88     SetPropA( hwnd, "SysIP", pos );
  89 }
  90
  91 /***********************************************************************
  92  *           WINPOS_CheckInternalPos
  93  *
  94  * Called when a window is destroyed.
  95  */
  96 void WINPOS_CheckInternalPos( HWND hwnd )
  97 {
  98     LPINTERNALPOS lpPos = get_internal_pos( hwnd );
  99
 100     if ( lpPos )
 101     {
 102         if( IsWindow(lpPos->hwndIconTitle) )
 103             DestroyWindow( lpPos->hwndIconTitle );
 104         HeapFree( GetProcessHeap(), 0, lpPos );
 105     }
 106 }
 107
 108 /***********************************************************************
 109  *              ArrangeIconicWindows (USER32.@)
 110  */
 111 UINT WINAPI ArrangeIconicWindows( HWND parent )
 112 {
 113     RECT rectParent;
 114     HWND hwndChild;
 115     INT x, y, xspacing, yspacing;
 116
 117     GetClientRect( parent, &rectParent );
 118     x = rectParent.left;
 119     y = rectParent.bottom;
 120     xspacing = GetSystemMetrics(SM_CXICONSPACING);
 121     yspacing = GetSystemMetrics(SM_CYICONSPACING);
 122
 123     hwndChild = GetWindow( parent, GW_CHILD );
 124     while (hwndChild)
 125     {
 126         if( IsIconic( hwndChild ) )
 127         {
 128             WINPOS_ShowIconTitle( hwndChild, FALSE );
 129
 130             SetWindowPos( hwndChild, 0, x + (xspacing - GetSystemMetrics(SM_CXICON)) / 2,
 131                             y - yspacing - GetSystemMetrics(SM_CYICON)/2, 0, 0,
 132                             SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 133             if( IsWindow(hwndChild) )
 134                 WINPOS_ShowIconTitle(hwndChild , TRUE );
 135
 136             if (x <= rectParent.right - xspacing) x += xspacing;
 137             else
 138             {
 139                 x = rectParent.left;
 140                 y -= yspacing;
 141             }
 142         }
 143         hwndChild = GetWindow( hwndChild, GW_HWNDNEXT );
 144     }
 145     return yspacing;
 146 }
 147
 148
 149 /***********************************************************************
 150  *              SwitchToThisWindow (USER32.@)
 151  */
 152 void WINAPI SwitchToThisWindow( HWND hwnd, BOOL restore )
 153 {
 154     ShowWindow( hwnd, restore ? SW_RESTORE : SW_SHOWMINIMIZED );
 155 }
 156
 157
 158 /***********************************************************************
 159  *              GetWindowRect (USER32.@)
 160  */
 161 BOOL WINAPI GetWindowRect( HWND hwnd, LPRECT rect )
 162 {
 163     BOOL ret = WIN_GetRectangles( hwnd, rect, NULL );
 164     if (ret)
 165     {
 166         MapWindowPoints( GetAncestor( hwnd, GA_PARENT ), 0, (POINT *)rect, 2 );
 167         TRACE( "hwnd %p (%ld,%ld)-(%ld,%ld)\n",
 168                hwnd, rect->left, rect->top, rect->right, rect->bottom);
 169     }
 170     return ret;
 171 }
 172
 173
 174 /***********************************************************************
 175  *              GetWindowRgn (USER32.@)
 176  */
 177 int WINAPI GetWindowRgn ( HWND hwnd, HRGN hrgn )
 178 {
 179     int nRet = ERROR;
 180     NTSTATUS status;
 181     HRGN win_rgn = 0;
 182     RGNDATA *data;
 183     size_t size = 256;
 184
 185     do
 186     {
 187         if (!(data = HeapAlloc( GetProcessHeap(), 0, sizeof(*data) + size - 1 )))
 188         {
 189             SetLastError( ERROR_OUTOFMEMORY );
 190             return ERROR;
 191         }
 192         SERVER_START_REQ( get_window_region )
 193         {
 194             req->window = hwnd;
 195             wine_server_set_reply( req, data->Buffer, size );
 196             if (!(status = wine_server_call( req )))
 197             {
 198                 size_t reply_size = wine_server_reply_size( reply );
 199                 if (reply_size)
 200                 {
 201                     data->rdh.dwSize   = sizeof(data->rdh);
 202                     data->rdh.iType    = RDH_RECTANGLES;
 203                     data->rdh.nCount   = reply_size / sizeof(RECT);
 204                     data->rdh.nRgnSize = reply_size;
 205                     win_rgn = ExtCreateRegion( NULL, size, data );
 206                 }
 207             }
 208             else size = reply->total_size;
 209         }
 210         SERVER_END_REQ;
 211         HeapFree( GetProcessHeap(), 0, data );
 212     } while (status == STATUS_BUFFER_OVERFLOW);
 213
 214     if (status) SetLastError( RtlNtStatusToDosError(status) );
 215     else if (win_rgn)
 216     {
 217         nRet = CombineRgn( hrgn, win_rgn, 0, RGN_COPY );
 218         DeleteObject( win_rgn );
 219     }
 220     return nRet;
 221 }
 222
 223
 224 /***********************************************************************
 225  *              SetWindowRgn (USER32.@)
 226  */
 227 int WINAPI SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL bRedraw )
 228 {
 229     static const RECT empty_rect;
 230     BOOL ret;
 231
 232     if (hrgn)
 233     {
 234         RGNDATA *data;
 235         DWORD size;
 236
 237         if (!(size = GetRegionData( hrgn, 0, NULL ))) return FALSE;
 238         if (!(data = HeapAlloc( GetProcessHeap(), 0, size ))) return FALSE;
 239         if (!GetRegionData( hrgn, size, data ))
 240         {
 241             HeapFree( GetProcessHeap(), 0, data );
 242             return FALSE;
 243         }
 244         SERVER_START_REQ( set_window_region )
 245         {
 246             req->window = hwnd;
 247             if (data->rdh.nCount)
 248                 wine_server_add_data( req, data->Buffer, data->rdh.nCount * sizeof(RECT) );
 249             else
 250                 wine_server_add_data( req, &empty_rect, sizeof(empty_rect) );
 251             ret = !wine_server_call_err( req );
 252         }
 253         SERVER_END_REQ;
 254     }
 255     else  /* clear existing region */
 256     {
 257         SERVER_START_REQ( set_window_region )
 258         {
 259             req->window = hwnd;
 260             ret = !wine_server_call_err( req );
 261         }
 262         SERVER_END_REQ;
 263     }
 264
 265     if (ret) ret = USER_Driver->pSetWindowRgn( hwnd, hrgn, bRedraw );
 266
 267     if (ret && bRedraw) RedrawWindow( hwnd, NULL, 0, RDW_FRAME | RDW_INVALIDATE | RDW_ERASE );
 268     return ret;
 269 }
 270
 271
 272 /***********************************************************************
 273  *              GetClientRect (USER32.@)
 274  */
 275 BOOL WINAPI GetClientRect( HWND hwnd, LPRECT rect )
 276 {
 277     BOOL ret;
 278
 279     if ((ret = WIN_GetRectangles( hwnd, NULL, rect )))
 280     {
 281         rect->right -= rect->left;
 282         rect->bottom -= rect->top;
 283         rect->left = rect->top = 0;
 284     }
 285     return ret;
 286 }
 287
 288
 289 /*******************************************************************
 290  *              ClientToScreen (USER32.@)
 291  */
 292 BOOL WINAPI ClientToScreen( HWND hwnd, LPPOINT lppnt )
 293 {
 294     MapWindowPoints( hwnd, 0, lppnt, 1 );
 295     return TRUE;
 296 }
 297
 298
 299 /*******************************************************************
 300  *              ScreenToClient (USER32.@)
 301  */
 302 BOOL WINAPI ScreenToClient( HWND hwnd, LPPOINT lppnt )
 303 {
 304     MapWindowPoints( 0, hwnd, lppnt, 1 );
 305     return TRUE;
 306 }
 307
 308
 309 /***********************************************************************
 310  *           list_children_from_point
 311  *
 312  * Get the list of children that can contain point from the server.
 313  * Point is in screen coordinates.
 314  * Returned list must be freed by caller.
 315  */
 316 static HWND *list_children_from_point( HWND hwnd, POINT pt )
 317 {
 318     HWND *list;
 319     int size = 32;
 320
 321     for (;;)
 322     {
 323         int count = 0;
 324
 325         if (!(list = HeapAlloc( GetProcessHeap(), 0, size * sizeof(HWND) ))) break;
 326
 327         SERVER_START_REQ( get_window_children_from_point )
 328         {
 329             req->parent = hwnd;
 330             req->x = pt.x;
 331             req->y = pt.y;
 332             wine_server_set_reply( req, list, (size-1) * sizeof(HWND) );
 333             if (!wine_server_call( req )) count = reply->count;
 334         }
 335         SERVER_END_REQ;
 336         if (count && count < size)
 337         {
 338             list[count] = 0;
 339             return list;
 340         }
 341         HeapFree( GetProcessHeap(), 0, list );
 342         if (!count) break;
 343         size = count + 1;  /* restart with a large enough buffer */
 344     }
 345     return NULL;
 346 }
 347
 348
 349 /***********************************************************************
 350  *           WINPOS_WindowFromPoint
 351  *
 352  * Find the window and hittest for a given point.
 353  */
 354 HWND WINPOS_WindowFromPoint( HWND hwndScope, POINT pt, INT *hittest )
 355 {
 356     int i, res;
 357     HWND ret, *list;
 358
 359     if (!hwndScope) hwndScope = GetDesktopWindow();
 360
 361     *hittest = HTNOWHERE;
 362
 363     if (!(list = list_children_from_point( hwndScope, pt ))) return 0;
 364
 365     /* now determine the hittest */
 366
 367     for (i = 0; list[i]; i++)
 368     {
 369         LONG style = GetWindowLongW( list[i], GWL_STYLE );
 370
 371         /* If window is minimized or disabled, return at once */
 372         if (style & WS_MINIMIZE)
 373         {
 374             *hittest = HTCAPTION;
 375             break;
 376         }
 377         if (style & WS_DISABLED)
 378         {
 379             *hittest = HTERROR;
 380             break;
 381         }
 382         /* Send WM_NCCHITTEST (if same thread) */
 383         if (!WIN_IsCurrentThread( list[i] ))
 384         {
 385             *hittest = HTCLIENT;
 386             break;
 387         }
 388         res = SendMessageA( list[i], WM_NCHITTEST, 0, MAKELONG(pt.x,pt.y) );
 389         if (res != HTTRANSPARENT)
 390         {
 391             *hittest = res;  /* Found the window */
 392             break;
 393         }
 394         /* continue search with next window in z-order */
 395     }
 396     ret = list[i];
 397     HeapFree( GetProcessHeap(), 0, list );
 398     TRACE( "scope %p (%ld,%ld) returning %p\n", hwndScope, pt.x, pt.y, ret );
 399     return ret;
 400 }
 401
 402
 403 /*******************************************************************
 404  *              WindowFromPoint (USER32.@)
 405  */
 406 HWND WINAPI WindowFromPoint( POINT pt )
 407 {
 408     INT hittest;
 409     return WINPOS_WindowFromPoint( 0, pt, &hittest );
 410 }
 411
 412
 413 /*******************************************************************
 414  *              ChildWindowFromPoint (USER32.@)
 415  */
 416 HWND WINAPI ChildWindowFromPoint( HWND hwndParent, POINT pt )
 417 {
 418     return ChildWindowFromPointEx( hwndParent, pt, CWP_ALL );
 419 }
 420
 421 /*******************************************************************
 422  *              ChildWindowFromPointEx (USER32.@)
 423  */
 424 HWND WINAPI ChildWindowFromPointEx( HWND hwndParent, POINT pt, UINT uFlags)
 425 {
 426     /* pt is in the client coordinates */
 427     HWND *list;
 428     int i;
 429     RECT rect;
 430     HWND retvalue;
 431
 432     GetClientRect( hwndParent, &rect );
 433     if (!PtInRect( &rect, pt )) return 0;
 434     if (!(list = WIN_ListChildren( hwndParent ))) return hwndParent;
 435
 436     for (i = 0; list[i]; i++)
 437     {
 438         if (!WIN_GetRectangles( list[i], &rect, NULL )) continue;
 439         if (!PtInRect( &rect, pt )) continue;
 440         if (uFlags & (CWP_SKIPINVISIBLE|CWP_SKIPDISABLED))
 441         {
 442             LONG style = GetWindowLongW( list[i], GWL_STYLE );
 443             if ((uFlags & CWP_SKIPINVISIBLE) && !(style & WS_VISIBLE)) continue;
 444             if ((uFlags & CWP_SKIPDISABLED) && (style & WS_DISABLED)) continue;
 445         }
 446         if (uFlags & CWP_SKIPTRANSPARENT)
 447         {
 448             if (GetWindowLongW( list[i], GWL_EXSTYLE ) & WS_EX_TRANSPARENT) continue;
 449         }
 450         break;
 451     }
 452     retvalue = list[i];
 453     HeapFree( GetProcessHeap(), 0, list );
 454     if (!retvalue) retvalue = hwndParent;
 455     return retvalue;
 456 }
 457
 458
 459 /*******************************************************************
 460  *         WINPOS_GetWinOffset
 461  *
 462  * Calculate the offset between the origin of the two windows. Used
 463  * to implement MapWindowPoints.
 464  */
 465 static void WINPOS_GetWinOffset( HWND hwndFrom, HWND hwndTo, POINT *offset )
 466 {
 467     WND * wndPtr;
 468
 469     offset->x = offset->y = 0;
 470
 471     /* Translate source window origin to screen coords */
 472     if (hwndFrom)
 473     {
 474         HWND hwnd = hwndFrom;
 475
 476         while (hwnd)
 477         {
 478             if (hwnd == hwndTo) return;
 479             if (!(wndPtr = WIN_GetPtr( hwnd )))
 480             {
 481                 ERR( "bad hwndFrom = %p\n", hwnd );
 482                 return;
 483             }
 484             if (wndPtr == WND_DESKTOP) break;
 485             if (wndPtr == WND_OTHER_PROCESS) goto other_process;
 486             offset->x += wndPtr->rectClient.left;
 487             offset->y += wndPtr->rectClient.top;
 488             hwnd = wndPtr->parent;
 489             WIN_ReleasePtr( wndPtr );
 490         }
 491     }
 492
 493     /* Translate origin to destination window coords */
 494     if (hwndTo)
 495     {
 496         HWND hwnd = hwndTo;
 497
 498         while (hwnd)
 499         {
 500             if (!(wndPtr = WIN_GetPtr( hwnd )))
 501             {
 502                 ERR( "bad hwndTo = %p\n", hwnd );
 503                 return;
 504             }
 505             if (wndPtr == WND_DESKTOP) break;
 506             if (wndPtr == WND_OTHER_PROCESS) goto other_process;
 507             offset->x -= wndPtr->rectClient.left;
 508             offset->y -= wndPtr->rectClient.top;
 509             hwnd = wndPtr->parent;
 510             WIN_ReleasePtr( wndPtr );
 511         }
 512     }
 513     return;
 514
 515  other_process:  /* one of the parents may belong to another process, do it the hard way */
 516     offset->x = offset->y = 0;
 517     SERVER_START_REQ( get_windows_offset )
 518     {
 519         req->from = hwndFrom;
 520         req->to   = hwndTo;
 521         if (!wine_server_call( req ))
 522         {
 523             offset->x = reply->x;
 524             offset->y = reply->y;
 525         }
 526     }
 527     SERVER_END_REQ;
 528 }
 529
 530
 531 /*******************************************************************
 532  *              MapWindowPoints (USER.258)
 533  */
 534 void WINAPI MapWindowPoints16( HWND16 hwndFrom, HWND16 hwndTo,
 535                                LPPOINT16 lppt, UINT16 count )
 536 {
 537     POINT offset;
 538
 539     WINPOS_GetWinOffset( WIN_Handle32(hwndFrom), WIN_Handle32(hwndTo), &offset );
 540     while (count--)
 541     {
 542         lppt->x += offset.x;
 543         lppt->y += offset.y;
 544         lppt++;
 545     }
 546 }
 547
 548
 549 /*******************************************************************
 550  *              MapWindowPoints (USER32.@)
 551  */
 552 INT WINAPI MapWindowPoints( HWND hwndFrom, HWND hwndTo, LPPOINT lppt, UINT count )
 553 {
 554     POINT offset;
 555
 556     WINPOS_GetWinOffset( hwndFrom, hwndTo, &offset );
 557     while (count--)
 558     {
 559         lppt->x += offset.x;
 560         lppt->y += offset.y;
 561         lppt++;
 562     }
 563     return MAKELONG( LOWORD(offset.x), LOWORD(offset.y) );
 564 }
 565
 566
 567 /***********************************************************************
 568  *              IsIconic (USER32.@)
 569  */
 570 BOOL WINAPI IsIconic(HWND hWnd)
 571 {
 572     return (GetWindowLongW( hWnd, GWL_STYLE ) & WS_MINIMIZE) != 0;
 573 }
 574
 575
 576 /***********************************************************************
 577  *              IsZoomed (USER32.@)
 578  */
 579 BOOL WINAPI IsZoomed(HWND hWnd)
 580 {
 581     return (GetWindowLongW( hWnd, GWL_STYLE ) & WS_MAXIMIZE) != 0;
 582 }
 583
 584
 585 /*******************************************************************
 586  *              AllowSetForegroundWindow (USER32.@)
 587  */
 588 BOOL WINAPI AllowSetForegroundWindow( DWORD procid )
 589 {
 590     /* FIXME: If Win98/2000 style SetForegroundWindow behavior is
 591      * implemented, then fix this function. */
 592     return TRUE;
 593 }
 594
 595
 596 /*******************************************************************
 597  *              LockSetForegroundWindow (USER32.@)
 598  */
 599 BOOL WINAPI LockSetForegroundWindow( UINT lockcode )
 600 {
 601     /* FIXME: If Win98/2000 style SetForegroundWindow behavior is
 602      * implemented, then fix this function. */
 603     return TRUE;
 604 }
 605
 606
 607 /***********************************************************************
 608  *              BringWindowToTop (USER32.@)
 609  */
 610 BOOL WINAPI BringWindowToTop( HWND hwnd )
 611 {
 612     return SetWindowPos( hwnd, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE );
 613 }
 614
 615
 616 /***********************************************************************
 617  *              MoveWindow (USER32.@)
 618  */
 619 BOOL WINAPI MoveWindow( HWND hwnd, INT x, INT y, INT cx, INT cy,
 620                             BOOL repaint )
 621 {
 622     int flags = SWP_NOZORDER | SWP_NOACTIVATE;
 623     if (!repaint) flags |= SWP_NOREDRAW;
 624     TRACE("%p %d,%d %dx%d %d\n", hwnd, x, y, cx, cy, repaint );
 625     return SetWindowPos( hwnd, 0, x, y, cx, cy, flags );
 626 }
 627
 628 /***********************************************************************
 629  *           WINPOS_InitInternalPos
 630  */
 631 static LPINTERNALPOS WINPOS_InitInternalPos( WND* wnd )
 632 {
 633     LPINTERNALPOS lpPos = get_internal_pos( wnd->hwndSelf );
 634     if( !lpPos )
 635     {
 636         /* this happens when the window is minimized/maximized
 637          * for the first time (rectWindow is not adjusted yet) */
 638
 639         lpPos = HeapAlloc( GetProcessHeap(), 0, sizeof(INTERNALPOS) );
 640         if( !lpPos ) return NULL;
 641
 642         set_internal_pos( wnd->hwndSelf, lpPos );
 643         lpPos->hwndIconTitle = 0; /* defer until needs to be shown */
 644         lpPos->rectNormal.left   = wnd->rectWindow.left;
 645         lpPos->rectNormal.top    = wnd->rectWindow.top;
 646         lpPos->rectNormal.right  = wnd->rectWindow.right;
 647         lpPos->rectNormal.bottom = wnd->rectWindow.bottom;
 648         lpPos->ptIconPos.x = lpPos->ptIconPos.y = -1;
 649         lpPos->ptMaxPos.x = lpPos->ptMaxPos.y = -1;
 650     }
 651
 652     if( wnd->dwStyle & WS_MINIMIZE )
 653     {
 654         lpPos->ptIconPos.x = wnd->rectWindow.left;
 655         lpPos->ptIconPos.y = wnd->rectWindow.top;
 656     }
 657     else if( wnd->dwStyle & WS_MAXIMIZE )
 658     {
 659         lpPos->ptMaxPos.x = wnd->rectWindow.left;
 660         lpPos->ptMaxPos.y = wnd->rectWindow.top;
 661     }
 662     else
 663     {
 664         lpPos->rectNormal.left   = wnd->rectWindow.left;
 665         lpPos->rectNormal.top    = wnd->rectWindow.top;
 666         lpPos->rectNormal.right  = wnd->rectWindow.right;
 667         lpPos->rectNormal.bottom = wnd->rectWindow.bottom;
 668     }
 669     return lpPos;
 670 }
 671
 672 /***********************************************************************
 673  *           WINPOS_RedrawIconTitle
 674  */
 675 BOOL WINPOS_RedrawIconTitle( HWND hWnd )
 676 {
 677     LPINTERNALPOS lpPos = get_internal_pos( hWnd );
 678     if( lpPos )
 679     {
 680         if( lpPos->hwndIconTitle )
 681         {
 682             SendMessageA( lpPos->hwndIconTitle, WM_SHOWWINDOW, TRUE, 0);
 683             InvalidateRect( lpPos->hwndIconTitle, NULL, TRUE );
 684             return TRUE;
 685         }
 686     }
 687     return FALSE;
 688 }
 689
 690 /***********************************************************************
 691  *           WINPOS_ShowIconTitle
 692  */
 693 BOOL WINPOS_ShowIconTitle( HWND hwnd, BOOL bShow )
 694 {
 695     LPINTERNALPOS lpPos = get_internal_pos( hwnd );
 696
 697     if (lpPos && !GetPropA( hwnd, "__wine_x11_managed" ))
 698     {
 699         HWND title = lpPos->hwndIconTitle;
 700
 701         TRACE("%p %i\n", hwnd, (bShow != 0) );
 702
 703         if( !title )
 704             lpPos->hwndIconTitle = title = ICONTITLE_Create( hwnd );
 705         if( bShow )
 706         {
 707             if (!IsWindowVisible(title))
 708             {
 709                 SendMessageA( title, WM_SHOWWINDOW, TRUE, 0 );
 710                 SetWindowPos( title, 0, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE |
 711                               SWP_NOACTIVATE | SWP_NOZORDER | SWP_SHOWWINDOW );
 712             }
 713         }
 714         else ShowWindow( title, SW_HIDE );
 715     }
 716     return FALSE;
 717 }
 718
 719 /*******************************************************************
 720  *           WINPOS_GetMinMaxInfo
 721  *
 722  * Get the minimized and maximized information for a window.
 723  */
 724 void WINPOS_GetMinMaxInfo( HWND hwnd, POINT *maxSize, POINT *maxPos,
 725                            POINT *minTrack, POINT *maxTrack )
 726 {
 727     LPINTERNALPOS lpPos;
 728     MINMAXINFO MinMax;
 729     INT xinc, yinc;
 730     LONG style = GetWindowLongA( hwnd, GWL_STYLE );
 731     LONG exstyle = GetWindowLongA( hwnd, GWL_EXSTYLE );
 732     RECT rc;
 733
 734     /* Compute default values */
 735
 736     GetWindowRect(hwnd, &rc);
 737     MinMax.ptReserved.x = rc.left;
 738     MinMax.ptReserved.y = rc.top;
 739
 740     if (style & WS_CHILD)
 741     {
 742         if ((style & WS_CAPTION) == WS_CAPTION)
 743             style &= ~WS_BORDER; /* WS_CAPTION = WS_DLGFRAME | WS_BORDER */
 744
 745         GetClientRect(GetAncestor(hwnd,GA_PARENT), &rc);
 746         AdjustWindowRectEx(&rc, style, ((style & WS_POPUP) && GetMenu(hwnd)), exstyle);
 747
 748         /* avoid calculating this twice */
 749         style &= ~(WS_DLGFRAME | WS_BORDER | WS_THICKFRAME);
 750
 751         MinMax.ptMaxSize.x = rc.right - rc.left;
 752         MinMax.ptMaxSize.y = rc.bottom - rc.top;
 753     }
 754     else
 755     {
 756         MinMax.ptMaxSize.x = GetSystemMetrics(SM_CXSCREEN);
 757         MinMax.ptMaxSize.y = GetSystemMetrics(SM_CYSCREEN);
 758     }
 759     MinMax.ptMinTrackSize.x = GetSystemMetrics(SM_CXMINTRACK);
 760     MinMax.ptMinTrackSize.y = GetSystemMetrics(SM_CYMINTRACK);
 761     MinMax.ptMaxTrackSize.x = GetSystemMetrics(SM_CXSCREEN) + 2*GetSystemMetrics(SM_CXFRAME);
 762     MinMax.ptMaxTrackSize.y = GetSystemMetrics(SM_CYSCREEN) + 2*GetSystemMetrics(SM_CYFRAME);
 763
 764     if (HAS_DLGFRAME( style, exstyle ))
 765     {
 766         xinc = GetSystemMetrics(SM_CXDLGFRAME);
 767         yinc = GetSystemMetrics(SM_CYDLGFRAME);
 768     }
 769     else
 770     {
 771         xinc = yinc = 0;
 772         if (HAS_THICKFRAME(style))
 773         {
 774             xinc += GetSystemMetrics(SM_CXFRAME);
 775             yinc += GetSystemMetrics(SM_CYFRAME);
 776         }
 777         if (style & WS_BORDER)
 778         {
 779             xinc += GetSystemMetrics(SM_CXBORDER);
 780             yinc += GetSystemMetrics(SM_CYBORDER);
 781         }
 782     }
 783     MinMax.ptMaxSize.x += 2 * xinc;
 784     MinMax.ptMaxSize.y += 2 * yinc;
 785
 786     lpPos = get_internal_pos( hwnd );
 787     if( lpPos && !EMPTYPOINT(lpPos->ptMaxPos) )
 788     {
 789         MinMax.ptMaxPosition.x = lpPos->ptMaxPos.x;
 790         MinMax.ptMaxPosition.y = lpPos->ptMaxPos.y;
 791     }
 792     else
 793     {
 794         MinMax.ptMaxPosition.x = -xinc;
 795         MinMax.ptMaxPosition.y = -yinc;
 796     }
 797
 798     SendMessageA( hwnd, WM_GETMINMAXINFO, 0, (LPARAM)&MinMax );
 799
 800       /* Some sanity checks */
 801
 802     TRACE("%ld %ld / %ld %ld / %ld %ld / %ld %ld\n",
 803                       MinMax.ptMaxSize.x, MinMax.ptMaxSize.y,
 804                       MinMax.ptMaxPosition.x, MinMax.ptMaxPosition.y,
 805                       MinMax.ptMaxTrackSize.x, MinMax.ptMaxTrackSize.y,
 806                       MinMax.ptMinTrackSize.x, MinMax.ptMinTrackSize.y);
 807     MinMax.ptMaxTrackSize.x = max( MinMax.ptMaxTrackSize.x,
 808                                    MinMax.ptMinTrackSize.x );
 809     MinMax.ptMaxTrackSize.y = max( MinMax.ptMaxTrackSize.y,
 810                                    MinMax.ptMinTrackSize.y );
 811
 812     if (maxSize) *maxSize = MinMax.ptMaxSize;
 813     if (maxPos) *maxPos = MinMax.ptMaxPosition;
 814     if (minTrack) *minTrack = MinMax.ptMinTrackSize;
 815     if (maxTrack) *maxTrack = MinMax.ptMaxTrackSize;
 816 }
 817
 818 /***********************************************************************
 819  *              ShowWindowAsync (USER32.@)
 820  *
 821  * doesn't wait; returns immediately.
 822  * used by threads to toggle windows in other (possibly hanging) threads
 823  */
 824 BOOL WINAPI ShowWindowAsync( HWND hwnd, INT cmd )
 825 {
 826     HWND full_handle;
 827
 828     if (is_broadcast(hwnd))
 829     {
 830         SetLastError( ERROR_INVALID_PARAMETER );
 831         return FALSE;
 832     }
 833
 834     if ((full_handle = WIN_IsCurrentThread( hwnd )))
 835         return USER_Driver->pShowWindow( full_handle, cmd );
 836
 837     return SendNotifyMessageW( hwnd, WM_WINE_SHOWWINDOW, cmd, 0 );
 838 }
 839
 840
 841 /***********************************************************************
 842  *              ShowWindow (USER32.@)
 843  */
 844 BOOL WINAPI ShowWindow( HWND hwnd, INT cmd )
 845 {
 846     HWND full_handle;
 847
 848     if (is_broadcast(hwnd))
 849     {
 850         SetLastError( ERROR_INVALID_PARAMETER );
 851         return FALSE;
 852     }
 853     if ((full_handle = WIN_IsCurrentThread( hwnd )))
 854         return USER_Driver->pShowWindow( full_handle, cmd );
 855
 856     return SendMessageW( hwnd, WM_WINE_SHOWWINDOW, cmd, 0 );
 857 }
 858
 859
 860 /***********************************************************************
 861  *              GetInternalWindowPos (USER32.@)
 862  */
 863 UINT WINAPI GetInternalWindowPos( HWND hwnd, LPRECT rectWnd,
 864                                       LPPOINT ptIcon )
 865 {
 866     WINDOWPLACEMENT wndpl;
 867     if (GetWindowPlacement( hwnd, &wndpl ))
 868     {
 869         if (rectWnd) *rectWnd = wndpl.rcNormalPosition;
 870         if (ptIcon)  *ptIcon = wndpl.ptMinPosition;
 871         return wndpl.showCmd;
 872     }
 873     return 0;
 874 }
 875
 876
 877 /***********************************************************************
 878  *              GetWindowPlacement (USER32.@)
 879  *
 880  * Win95:
 881  * Fails if wndpl->length of Win95 (!) apps is invalid.
 882  */
 883 BOOL WINAPI GetWindowPlacement( HWND hwnd, WINDOWPLACEMENT *wndpl )
 884 {
 885     WND *pWnd = WIN_GetPtr( hwnd );
 886     LPINTERNALPOS lpPos;
 887
 888     if (!pWnd || pWnd == WND_DESKTOP) return FALSE;
 889     if (pWnd == WND_OTHER_PROCESS)
 890     {
 891         if (IsWindow( hwnd )) FIXME( "not supported on other process window %p\n", hwnd );
 892         return FALSE;
 893     }
 894
 895     lpPos = WINPOS_InitInternalPos( pWnd );
 896     wndpl->length  = sizeof(*wndpl);
 897     if( pWnd->dwStyle & WS_MINIMIZE )
 898         wndpl->showCmd = SW_SHOWMINIMIZED;
 899     else
 900         wndpl->showCmd = ( pWnd->dwStyle & WS_MAXIMIZE ) ? SW_SHOWMAXIMIZED : SW_SHOWNORMAL ;
 901     if( pWnd->flags & WIN_RESTORE_MAX )
 902         wndpl->flags = WPF_RESTORETOMAXIMIZED;
 903     else
 904         wndpl->flags = 0;
 905     wndpl->ptMinPosition.x = lpPos->ptIconPos.x;
 906     wndpl->ptMinPosition.y = lpPos->ptIconPos.y;
 907     wndpl->ptMaxPosition.x = lpPos->ptMaxPos.x;
 908     wndpl->ptMaxPosition.y = lpPos->ptMaxPos.y;
 909     wndpl->rcNormalPosition.left   = lpPos->rectNormal.left;
 910     wndpl->rcNormalPosition.top    = lpPos->rectNormal.top;
 911     wndpl->rcNormalPosition.right  = lpPos->rectNormal.right;
 912     wndpl->rcNormalPosition.bottom = lpPos->rectNormal.bottom;
 913     WIN_ReleasePtr( pWnd );
 914     return TRUE;
 915 }
 916
 917
 918 /***********************************************************************
 919  *           WINPOS_SetPlacement
 920  */
 921 static BOOL WINPOS_SetPlacement( HWND hwnd, const WINDOWPLACEMENT *wndpl, UINT flags )
 922 {
 923     LPINTERNALPOS lpPos;
 924     DWORD style;
 925     WND *pWnd = WIN_GetPtr( hwnd );
 926
 927     if (!pWnd || pWnd == WND_OTHER_PROCESS || pWnd == WND_DESKTOP) return FALSE;
 928     lpPos = WINPOS_InitInternalPos( pWnd );
 929
 930     if( flags & PLACE_MIN )
 931     {
 932         lpPos->ptIconPos.x = wndpl->ptMinPosition.x;
 933         lpPos->ptIconPos.y = wndpl->ptMinPosition.y;
 934     }
 935     if( flags & PLACE_MAX )
 936     {
 937         lpPos->ptMaxPos.x = wndpl->ptMaxPosition.x;
 938         lpPos->ptMaxPos.y = wndpl->ptMaxPosition.y;
 939     }
 940     if( flags & PLACE_RECT)
 941     {
 942         lpPos->rectNormal.left   = wndpl->rcNormalPosition.left;
 943         lpPos->rectNormal.top    = wndpl->rcNormalPosition.top;
 944         lpPos->rectNormal.right  = wndpl->rcNormalPosition.right;
 945         lpPos->rectNormal.bottom = wndpl->rcNormalPosition.bottom;
 946     }
 947
 948     style = pWnd->dwStyle;
 949     WIN_ReleasePtr( pWnd );
 950
 951     if( style & WS_MINIMIZE )
 952     {
 953         WINPOS_ShowIconTitle( hwnd, FALSE );
 954         if( wndpl->flags & WPF_SETMINPOSITION && !EMPTYPOINT(lpPos->ptIconPos))
 955             SetWindowPos( hwnd, 0, lpPos->ptIconPos.x, lpPos->ptIconPos.y,
 956                           0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 957     }
 958     else if( style & WS_MAXIMIZE )
 959     {
 960         if( !EMPTYPOINT(lpPos->ptMaxPos) )
 961             SetWindowPos( hwnd, 0, lpPos->ptMaxPos.x, lpPos->ptMaxPos.y,
 962                           0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 963     }
 964     else if( flags & PLACE_RECT )
 965         SetWindowPos( hwnd, 0, lpPos->rectNormal.left, lpPos->rectNormal.top,
 966                       lpPos->rectNormal.right - lpPos->rectNormal.left,
 967                       lpPos->rectNormal.bottom - lpPos->rectNormal.top,
 968                       SWP_NOZORDER | SWP_NOACTIVATE );
 969
 970     ShowWindow( hwnd, wndpl->showCmd );
 971
 972     if (IsIconic( hwnd ))
 973     {
 974         if (GetWindowLongW( hwnd, GWL_STYLE ) & WS_VISIBLE) WINPOS_ShowIconTitle( hwnd, TRUE );
 975
 976         /* SDK: ...valid only the next time... */
 977         if( wndpl->flags & WPF_RESTORETOMAXIMIZED )
 978         {
 979             pWnd = WIN_GetPtr( hwnd );
 980             if (pWnd && pWnd != WND_OTHER_PROCESS)
 981             {
 982                 pWnd->flags |= WIN_RESTORE_MAX;
 983                 WIN_ReleasePtr( pWnd );
 984             }
 985         }
 986     }
 987     return TRUE;
 988 }
 989
 990
 991 /***********************************************************************
 992  *              SetWindowPlacement (USER32.@)
 993  *
 994  * Win95:
 995  * Fails if wndpl->length of Win95 (!) apps is invalid.
 996  */
 997 BOOL WINAPI SetWindowPlacement( HWND hwnd, const WINDOWPLACEMENT *wpl )
 998 {
 999     if (!wpl) return FALSE;
1000     return WINPOS_SetPlacement( hwnd, wpl, PLACE_MIN | PLACE_MAX | PLACE_RECT );
1001 }
1002
1003
1004 /***********************************************************************
1005  *              AnimateWindow (USER32.@)
1006  *              Shows/Hides a window with an animation
1007  *              NO ANIMATION YET
1008  */
1009 BOOL WINAPI AnimateWindow(HWND hwnd, DWORD dwTime, DWORD dwFlags)
1010 {
1011         FIXME("partial stub\n");
1012
1013         /* If trying to show/hide and it's already   *
1014          * shown/hidden or invalid window, fail with *
1015          * invalid parameter                         */
1016         if(!IsWindow(hwnd) ||
1017            (IsWindowVisible(hwnd) && !(dwFlags & AW_HIDE)) ||
1018            (!IsWindowVisible(hwnd) && (dwFlags & AW_HIDE)))
1019         {
1020                 SetLastError(ERROR_INVALID_PARAMETER);
1021                 return FALSE;
1022         }
1023
1024         ShowWindow(hwnd, (dwFlags & AW_HIDE) ? SW_HIDE : ((dwFlags & AW_ACTIVATE) ? SW_SHOW : SW_SHOWNA));
1025
1026         return TRUE;
1027 }
1028
1029 /***********************************************************************
1030  *              SetInternalWindowPos (USER32.@)
1031  */
1032 void WINAPI SetInternalWindowPos( HWND hwnd, UINT showCmd,
1033                                     LPRECT rect, LPPOINT pt )
1034 {
1035     if( IsWindow(hwnd) )
1036     {
1037         WINDOWPLACEMENT wndpl;
1038         UINT flags;
1039
1040         wndpl.length  = sizeof(wndpl);
1041         wndpl.showCmd = showCmd;
1042         wndpl.flags = flags = 0;
1043
1044         if( pt )
1045         {
1046             flags |= PLACE_MIN;
1047             wndpl.flags |= WPF_SETMINPOSITION;
1048             wndpl.ptMinPosition = *pt;
1049         }
1050         if( rect )
1051         {
1052             flags |= PLACE_RECT;
1053             wndpl.rcNormalPosition = *rect;
1054         }
1055         WINPOS_SetPlacement( hwnd, &wndpl, flags );
1056     }
1057 }
1058
1059
1060 /*******************************************************************
1061  *         can_activate_window
1062  *
1063  * Check if we can activate the specified window.
1064  */
1065 static BOOL can_activate_window( HWND hwnd )
1066 {
1067     LONG style;
1068
1069     if (!hwnd) return FALSE;
1070     style = GetWindowLongW( hwnd, GWL_STYLE );
1071     if (!(style & WS_VISIBLE)) return FALSE;
1072     if ((style & (WS_POPUP|WS_CHILD)) == WS_CHILD) return FALSE;
1073     return !(style & WS_DISABLED);
1074 }
1075
1076
1077 /*******************************************************************
1078  *         WINPOS_ActivateOtherWindow
1079  *
1080  *  Activates window other than pWnd.
1081  */
1082 void WINPOS_ActivateOtherWindow(HWND hwnd)
1083 {
1084     HWND hwndTo, fg;
1085
1086     if ((GetWindowLongW( hwnd, GWL_STYLE ) & WS_POPUP) && (hwndTo = GetWindow( hwnd, GW_OWNER )))
1087     {
1088         hwndTo = GetAncestor( hwndTo, GA_ROOT );
1089         if (can_activate_window( hwndTo )) goto done;
1090     }
1091
1092     hwndTo = hwnd;
1093     for (;;)
1094     {
1095         if (!(hwndTo = GetWindow( hwndTo, GW_HWNDNEXT ))) break;
1096         if (can_activate_window( hwndTo )) break;
1097     }
1098
1099  done:
1100     fg = GetForegroundWindow();
1101     TRACE("win = %p fg = %p\n", hwndTo, fg);
1102     if (!fg || (hwnd == fg))
1103     {
1104         if (SetForegroundWindow( hwndTo )) return;
1105     }
1106     if (!SetActiveWindow( hwndTo )) SetActiveWindow(0);
1107 }
1108
1109
1110 /***********************************************************************
1111  *           WINPOS_HandleWindowPosChanging
1112  *
1113  * Default handling for a WM_WINDOWPOSCHANGING. Called from DefWindowProc().
1114  */
1115 LONG WINPOS_HandleWindowPosChanging( HWND hwnd, WINDOWPOS *winpos )
1116 {
1117     POINT minTrack, maxTrack;
1118     LONG style = GetWindowLongW( hwnd, GWL_STYLE );
1119
1120     if (winpos->flags & SWP_NOSIZE) return 0;
1121     if ((style & WS_THICKFRAME) || ((style & (WS_POPUP | WS_CHILD)) == 0))
1122     {
1123         WINPOS_GetMinMaxInfo( hwnd, NULL, NULL, &minTrack, &maxTrack );
1124         if (winpos->cx > maxTrack.x) winpos->cx = maxTrack.x;
1125         if (winpos->cy > maxTrack.y) winpos->cy = maxTrack.y;
1126         if (!(style & WS_MINIMIZE))
1127         {
1128             if (winpos->cx < minTrack.x ) winpos->cx = minTrack.x;
1129             if (winpos->cy < minTrack.y ) winpos->cy = minTrack.y;
1130         }
1131     }
1132     return 0;
1133 }
1134
1135
1136 /***********************************************************************
1137  *           dump_winpos_flags
1138  */
1139 static void dump_winpos_flags(UINT flags)
1140 {
1141     TRACE("flags:");
1142     if(flags & SWP_NOSIZE) TRACE(" SWP_NOSIZE");
1143     if(flags & SWP_NOMOVE) TRACE(" SWP_NOMOVE");
1144     if(flags & SWP_NOZORDER) TRACE(" SWP_NOZORDER");
1145     if(flags & SWP_NOREDRAW) TRACE(" SWP_NOREDRAW");
1146     if(flags & SWP_NOACTIVATE) TRACE(" SWP_NOACTIVATE");
1147     if(flags & SWP_FRAMECHANGED) TRACE(" SWP_FRAMECHANGED");
1148     if(flags & SWP_SHOWWINDOW) TRACE(" SWP_SHOWWINDOW");
1149     if(flags & SWP_HIDEWINDOW) TRACE(" SWP_HIDEWINDOW");
1150     if(flags & SWP_NOCOPYBITS) TRACE(" SWP_NOCOPYBITS");
1151     if(flags & SWP_NOOWNERZORDER) TRACE(" SWP_NOOWNERZORDER");
1152     if(flags & SWP_NOSENDCHANGING) TRACE(" SWP_NOSENDCHANGING");
1153     if(flags & SWP_DEFERERASE) TRACE(" SWP_DEFERERASE");
1154     if(flags & SWP_ASYNCWINDOWPOS) TRACE(" SWP_ASYNCWINDOWPOS");
1155
1156 #define DUMPED_FLAGS \
1157     (SWP_NOSIZE | \
1158     SWP_NOMOVE | \
1159     SWP_NOZORDER | \
1160     SWP_NOREDRAW | \
1161     SWP_NOACTIVATE | \
1162     SWP_FRAMECHANGED | \
1163     SWP_SHOWWINDOW | \
1164     SWP_HIDEWINDOW | \
1165     SWP_NOCOPYBITS | \
1166     SWP_NOOWNERZORDER | \
1167     SWP_NOSENDCHANGING | \
1168     SWP_DEFERERASE | \
1169     SWP_ASYNCWINDOWPOS)
1170
1171     if(flags & ~DUMPED_FLAGS) TRACE(" %08x", flags & ~DUMPED_FLAGS);
1172     TRACE("\n");
1173 #undef DUMPED_FLAGS
1174 }
1175
1176 /***********************************************************************
1177  *              SetWindowPos (USER32.@)
1178  */
1179 BOOL WINAPI SetWindowPos( HWND hwnd, HWND hwndInsertAfter,
1180                           INT x, INT y, INT cx, INT cy, UINT flags )
1181 {
1182     WINDOWPOS winpos;
1183
1184     TRACE("hwnd %p, after %p, %d,%d (%dx%d), flags %08x\n",
1185           hwnd, hwndInsertAfter, x, y, cx, cy, flags);
1186     if(TRACE_ON(win)) dump_winpos_flags(flags);
1187
1188     if (is_broadcast(hwnd))
1189     {
1190         SetLastError( ERROR_INVALID_PARAMETER );
1191         return FALSE;
1192     }
1193
1194     winpos.hwnd = WIN_GetFullHandle(hwnd);
1195     winpos.hwndInsertAfter = WIN_GetFullHandle(hwndInsertAfter);
1196     winpos.x = x;
1197     winpos.y = y;
1198     winpos.cx = cx;
1199     winpos.cy = cy;
1200     winpos.flags = flags;
1201     if (WIN_IsCurrentThread( hwnd ))
1202         return USER_Driver->pSetWindowPos( &winpos );
1203
1204     return SendMessageW( winpos.hwnd, WM_WINE_SETWINDOWPOS, 0, (LPARAM)&winpos );
1205 }
1206
1207
1208 /***********************************************************************
1209  *              BeginDeferWindowPos (USER32.@)
1210  */
1211 HDWP WINAPI BeginDeferWindowPos( INT count )
1212 {
1213     HDWP handle;
1214     DWP *pDWP;
1215
1216     TRACE("%d\n", count);
1217
1218     if (count < 0)
1219     {
1220         SetLastError(ERROR_INVALID_PARAMETER);
1221         return 0;
1222     }
1223     /* Windows allows zero count, in which case it allocates context for 8 moves */
1224     if (count == 0) count = 8;
1225
1226     handle = USER_HEAP_ALLOC( sizeof(DWP) + (count-1)*sizeof(WINDOWPOS) );
1227     if (!handle) return 0;
1228     pDWP = (DWP *) USER_HEAP_LIN_ADDR( handle );
1229     pDWP->actualCount    = 0;
1230     pDWP->suggestedCount = count;
1231     pDWP->valid          = TRUE;
1232     pDWP->wMagic         = DWP_MAGIC;
1233     pDWP->hwndParent     = 0;
1234
1235     TRACE("returning hdwp %p\n", handle);
1236     return handle;
1237 }
1238
1239
1240 /***********************************************************************
1241  *              DeferWindowPos (USER32.@)
1242  */
1243 HDWP WINAPI DeferWindowPos( HDWP hdwp, HWND hwnd, HWND hwndAfter,
1244                                 INT x, INT y, INT cx, INT cy,
1245                                 UINT flags )
1246 {
1247     DWP *pDWP;
1248     int i;
1249     HDWP newhdwp = hdwp,retvalue;
1250
1251     TRACE("hdwp %p, hwnd %p, after %p, %d,%d (%dx%d), flags %08x\n",
1252           hdwp, hwnd, hwndAfter, x, y, cx, cy, flags);
1253
1254     hwnd = WIN_GetFullHandle( hwnd );
1255     if (hwnd == GetDesktopWindow()) return 0;
1256
1257     if (!(pDWP = USER_HEAP_LIN_ADDR( hdwp ))) return 0;
1258
1259     USER_Lock();
1260
1261     for (i = 0; i < pDWP->actualCount; i++)
1262     {
1263         if (pDWP->winPos[i].hwnd == hwnd)
1264         {
1265               /* Merge with the other changes */
1266             if (!(flags & SWP_NOZORDER))
1267             {
1268                 pDWP->winPos[i].hwndInsertAfter = WIN_GetFullHandle(hwndAfter);
1269             }
1270             if (!(flags & SWP_NOMOVE))
1271             {
1272                 pDWP->winPos[i].x = x;
1273                 pDWP->winPos[i].y = y;
1274             }
1275             if (!(flags & SWP_NOSIZE))
1276             {
1277                 pDWP->winPos[i].cx = cx;
1278                 pDWP->winPos[i].cy = cy;
1279             }
1280             pDWP->winPos[i].flags &= flags | ~(SWP_NOSIZE | SWP_NOMOVE |
1281                                                SWP_NOZORDER | SWP_NOREDRAW |
1282                                                SWP_NOACTIVATE | SWP_NOCOPYBITS|
1283                                                SWP_NOOWNERZORDER);
1284             pDWP->winPos[i].flags |= flags & (SWP_SHOWWINDOW | SWP_HIDEWINDOW |
1285                                               SWP_FRAMECHANGED);
1286             retvalue = hdwp;
1287             goto END;
1288         }
1289     }
1290     if (pDWP->actualCount >= pDWP->suggestedCount)
1291     {
1292         newhdwp = USER_HEAP_REALLOC( hdwp,
1293                       sizeof(DWP) + pDWP->suggestedCount*sizeof(WINDOWPOS) );
1294         if (!newhdwp)
1295         {
1296             retvalue = 0;
1297             goto END;
1298         }
1299         pDWP = (DWP *) USER_HEAP_LIN_ADDR( newhdwp );
1300         pDWP->suggestedCount++;
1301     }
1302     pDWP->winPos[pDWP->actualCount].hwnd = hwnd;
1303     pDWP->winPos[pDWP->actualCount].hwndInsertAfter = hwndAfter;
1304     pDWP->winPos[pDWP->actualCount].x = x;
1305     pDWP->winPos[pDWP->actualCount].y = y;
1306     pDWP->winPos[pDWP->actualCount].cx = cx;
1307     pDWP->winPos[pDWP->actualCount].cy = cy;
1308     pDWP->winPos[pDWP->actualCount].flags = flags;
1309     pDWP->actualCount++;
1310     retvalue = newhdwp;
1311 END:
1312     USER_Unlock();
1313     return retvalue;
1314 }
1315
1316
1317 /***********************************************************************
1318  *              EndDeferWindowPos (USER32.@)
1319  */
1320 BOOL WINAPI EndDeferWindowPos( HDWP hdwp )
1321 {
1322     DWP *pDWP;
1323     WINDOWPOS *winpos;
1324     BOOL res = TRUE;
1325     int i;
1326
1327     TRACE("%p\n", hdwp);
1328
1329     pDWP = (DWP *) USER_HEAP_LIN_ADDR( hdwp );
1330     if (!pDWP) return FALSE;
1331     for (i = 0, winpos = pDWP->winPos; i < pDWP->actualCount; i++, winpos++)
1332     {
1333         if (!(res = USER_Driver->pSetWindowPos( winpos ))) break;
1334     }
1335     USER_HEAP_FREE( hdwp );
1336     return res;
1337 }
1338
1339
1340 /***********************************************************************
1341  *              TileChildWindows (USER.199)
1342  */
1343 void WINAPI TileChildWindows16( HWND16 parent, WORD action )
1344 {
1345     FIXME("(%04x, %d): stub\n", parent, action);
1346 }
1347
1348 /***********************************************************************
1349  *              CascadeChildWindows (USER.198)
1350  */
1351 void WINAPI CascadeChildWindows16( HWND16 parent, WORD action )
1352 {
1353     FIXME("(%04x, %d): stub\n", parent, action);
1354 }