windows/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 "winerror.h"
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "wingdi.h"
  31 #include "winerror.h"
  32 #include "wine/winuser16.h"
  33 #include "wine/server.h"
  34 #include "controls.h"
  35 #include "user.h"
  36 #include "win.h"
  37 #include "message.h"
  38 #include "winpos.h"
  39 #include "nonclient.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 /* ----- internal variables ----- */
  72
  73 static LPCSTR atomInternalPos;
  74
  75
  76 /***********************************************************************
  77  *           WINPOS_CreateInternalPosAtom
  78  */
  79 BOOL WINPOS_CreateInternalPosAtom()
  80 {
  81     LPCSTR str = "SysIP";
  82     atomInternalPos = (LPCSTR)(DWORD)GlobalAddAtomA(str);
  83     return (atomInternalPos) ? TRUE : FALSE;
  84 }
  85
  86 /***********************************************************************
  87  *           WINPOS_CheckInternalPos
  88  *
  89  * Called when a window is destroyed.
  90  */
  91 void WINPOS_CheckInternalPos( HWND hwnd )
  92 {
  93     LPINTERNALPOS lpPos = (LPINTERNALPOS) GetPropA( hwnd, atomInternalPos );
  94
  95     if( lpPos )
  96     {
  97         if( IsWindow(lpPos->hwndIconTitle) )
  98             DestroyWindow( lpPos->hwndIconTitle );
  99         HeapFree( GetProcessHeap(), 0, lpPos );
 100     }
 101 }
 102
 103 /***********************************************************************
 104  *              ArrangeIconicWindows (USER32.@)
 105  */
 106 UINT WINAPI ArrangeIconicWindows( HWND parent )
 107 {
 108     RECT rectParent;
 109     HWND hwndChild;
 110     INT x, y, xspacing, yspacing;
 111
 112     GetClientRect( parent, &rectParent );
 113     x = rectParent.left;
 114     y = rectParent.bottom;
 115     xspacing = GetSystemMetrics(SM_CXICONSPACING);
 116     yspacing = GetSystemMetrics(SM_CYICONSPACING);
 117
 118     hwndChild = GetWindow( parent, GW_CHILD );
 119     while (hwndChild)
 120     {
 121         if( IsIconic( hwndChild ) )
 122         {
 123             WINPOS_ShowIconTitle( hwndChild, FALSE );
 124
 125             SetWindowPos( hwndChild, 0, x + (xspacing - GetSystemMetrics(SM_CXICON)) / 2,
 126                             y - yspacing - GetSystemMetrics(SM_CYICON)/2, 0, 0,
 127                             SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 128             if( IsWindow(hwndChild) )
 129                 WINPOS_ShowIconTitle(hwndChild , TRUE );
 130
 131             if (x <= rectParent.right - xspacing) x += xspacing;
 132             else
 133             {
 134                 x = rectParent.left;
 135                 y -= yspacing;
 136             }
 137         }
 138         hwndChild = GetWindow( hwndChild, GW_HWNDNEXT );
 139     }
 140     return yspacing;
 141 }
 142
 143
 144 /***********************************************************************
 145  *              SwitchToThisWindow (USER32.@)
 146  */
 147 void WINAPI SwitchToThisWindow( HWND hwnd, BOOL restore )
 148 {
 149     ShowWindow( hwnd, restore ? SW_RESTORE : SW_SHOWMINIMIZED );
 150 }
 151
 152
 153 /***********************************************************************
 154  *              GetWindowRect (USER32.@)
 155  */
 156 BOOL WINAPI GetWindowRect( HWND hwnd, LPRECT rect )
 157 {
 158     BOOL ret = WIN_GetRectangles( hwnd, rect, NULL );
 159     if (ret)
 160     {
 161         MapWindowPoints( GetAncestor( hwnd, GA_PARENT ), 0, (POINT *)rect, 2 );
 162         TRACE( "hwnd %p (%ld,%ld)-(%ld,%ld)\n",
 163                hwnd, rect->left, rect->top, rect->right, rect->bottom);
 164     }
 165     return ret;
 166 }
 167
 168
 169 /***********************************************************************
 170  *              GetWindowRgn (USER32.@)
 171  */
 172 int WINAPI GetWindowRgn ( HWND hwnd, HRGN hrgn )
 173 {
 174     int nRet = ERROR;
 175     WND *wndPtr = WIN_GetPtr( hwnd );
 176
 177     if (wndPtr == WND_OTHER_PROCESS)
 178     {
 179         if (IsWindow( hwnd ))
 180             FIXME( "not supported on other process window %p\n", hwnd );
 181         wndPtr = NULL;
 182     }
 183     if (!wndPtr)
 184     {
 185         SetLastError( ERROR_INVALID_WINDOW_HANDLE );
 186         return ERROR;
 187     }
 188     if (wndPtr->hrgnWnd) nRet = CombineRgn( hrgn, wndPtr->hrgnWnd, 0, RGN_COPY );
 189     WIN_ReleasePtr( wndPtr );
 190     return nRet;
 191 }
 192
 193
 194 /***********************************************************************
 195  *              SetWindowRgn (USER32.@)
 196  */
 197 int WINAPI SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL bRedraw )
 198 {
 199     RECT rect;
 200     WND *wndPtr;
 201
 202     if (hrgn) /* verify that region really exists */
 203     {
 204         if (GetRgnBox( hrgn, &rect ) == ERROR) return FALSE;
 205     }
 206
 207     if (USER_Driver.pSetWindowRgn)
 208         return USER_Driver.pSetWindowRgn( hwnd, hrgn, bRedraw );
 209
 210     if ((wndPtr = WIN_GetPtr( hwnd )) == WND_OTHER_PROCESS)
 211     {
 212         if (IsWindow( hwnd ))
 213             FIXME( "not supported on other process window %p\n", hwnd );
 214         wndPtr = NULL;
 215     }
 216     if (!wndPtr)
 217     {
 218         SetLastError( ERROR_INVALID_WINDOW_HANDLE );
 219         return FALSE;
 220     }
 221
 222     if (wndPtr->hrgnWnd == hrgn)
 223     {
 224         WIN_ReleasePtr( wndPtr );
 225         return TRUE;
 226     }
 227
 228     if (wndPtr->hrgnWnd)
 229     {
 230         /* delete previous region */
 231         DeleteObject(wndPtr->hrgnWnd);
 232         wndPtr->hrgnWnd = 0;
 233     }
 234     wndPtr->hrgnWnd = hrgn;
 235     WIN_ReleasePtr( wndPtr );
 236
 237     /* Size the window to the rectangle of the new region (if it isn't NULL) */
 238     if (hrgn) SetWindowPos( hwnd, 0, rect.left, rect.top,
 239                             rect.right  - rect.left, rect.bottom - rect.top,
 240                             SWP_NOSIZE | SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOACTIVATE |
 241                             SWP_NOZORDER | (bRedraw ? 0 : SWP_NOREDRAW) );
 242     return TRUE;
 243 }
 244
 245
 246 /***********************************************************************
 247  *              GetClientRect (USER32.@)
 248  */
 249 BOOL WINAPI GetClientRect( HWND hwnd, LPRECT rect )
 250 {
 251     BOOL ret;
 252
 253     rect->right = rect->bottom = 0;
 254     if ((ret = WIN_GetRectangles( hwnd, NULL, rect )))
 255     {
 256         rect->right -= rect->left;
 257         rect->bottom -= rect->top;
 258     }
 259     rect->left = rect->top = 0;
 260     return ret;
 261 }
 262
 263
 264 /*******************************************************************
 265  *              ClientToScreen (USER32.@)
 266  */
 267 BOOL WINAPI ClientToScreen( HWND hwnd, LPPOINT lppnt )
 268 {
 269     MapWindowPoints( hwnd, 0, lppnt, 1 );
 270     return TRUE;
 271 }
 272
 273
 274 /*******************************************************************
 275  *              ScreenToClient (USER32.@)
 276  */
 277 BOOL WINAPI ScreenToClient( HWND hwnd, LPPOINT lppnt )
 278 {
 279     MapWindowPoints( 0, hwnd, lppnt, 1 );
 280     return TRUE;
 281 }
 282
 283
 284 /***********************************************************************
 285  *           find_child_from_point
 286  *
 287  * Find the child that contains pt. Helper for WindowFromPoint.
 288  * pt is in parent client coordinates.
 289  * lparam is the param to pass in the WM_NCHITTEST message.
 290  */
 291 static HWND find_child_from_point( HWND parent, POINT pt, INT *hittest, LPARAM lparam )
 292 {
 293     int i, res;
 294     LONG style, exstyle;
 295     RECT rectWindow, rectClient;
 296     WND *wndPtr;
 297     HWND *list = WIN_ListChildren( parent );
 298     HWND retvalue = 0;
 299
 300     if (!list) return 0;
 301     for (i = 0; list[i]; i++)
 302     {
 303         /* If point is in window, and window is visible, and it  */
 304         /* is enabled (or it's a top-level window), then explore */
 305         /* its children. Otherwise, go to the next window.       */
 306
 307         style = GetWindowLongW( list[i], GWL_STYLE );
 308         if (!(style & WS_VISIBLE)) continue;  /* not visible -> skip */
 309         if ((style & (WS_POPUP | WS_CHILD | WS_DISABLED)) == (WS_CHILD | WS_DISABLED))
 310             continue;  /* disabled child -> skip */
 311         exstyle = GetWindowLongW( list[i], GWL_EXSTYLE );
 312         if ((exstyle & (WS_EX_LAYERED | WS_EX_TRANSPARENT)) == (WS_EX_LAYERED | WS_EX_TRANSPARENT))
 313             continue;  /* transparent -> skip */
 314
 315         if (!WIN_GetRectangles( list[i], &rectWindow, &rectClient )) continue;
 316         if (!PtInRect( &rectWindow, pt )) continue;  /* not in window -> skip */
 317
 318         /* FIXME: check window region for other processes too */
 319         if ((wndPtr = WIN_GetPtr( list[i] )) && wndPtr != WND_OTHER_PROCESS)
 320         {
 321             if (wndPtr->hrgnWnd && !PtInRegion( wndPtr->hrgnWnd,
 322                                                 pt.x - rectWindow.left, pt.y - rectWindow.top ))
 323             {
 324                 WIN_ReleasePtr( wndPtr );
 325                 continue;  /* point outside window region -> skip */
 326             }
 327             WIN_ReleasePtr( wndPtr );
 328         }
 329
 330         /* If window is minimized or disabled, return at once */
 331         if (style & WS_MINIMIZE)
 332         {
 333             *hittest = HTCAPTION;
 334             retvalue = list[i];
 335             break;
 336         }
 337         if (style & WS_DISABLED)
 338         {
 339             *hittest = HTERROR;
 340             retvalue = list[i];
 341             break;
 342         }
 343
 344         /* If point is in client area, explore children */
 345         if (PtInRect( &rectClient, pt ))
 346         {
 347             POINT new_pt;
 348
 349             new_pt.x = pt.x - rectClient.left;
 350             new_pt.y = pt.y - rectClient.top;
 351             if ((retvalue = find_child_from_point( list[i], new_pt, hittest, lparam ))) break;
 352         }
 353
 354         /* Now it's inside window, send WM_NCCHITTEST (if same thread) */
 355         if (!WIN_IsCurrentThread( list[i] ))
 356         {
 357             *hittest = HTCLIENT;
 358             retvalue = list[i];
 359             break;
 360         }
 361         if ((res = SendMessageA( list[i], WM_NCHITTEST, 0, lparam )) != HTTRANSPARENT)
 362         {
 363             *hittest = res;  /* Found the window */
 364             retvalue = list[i];
 365             break;
 366         }
 367         /* continue search with next sibling */
 368     }
 369     HeapFree( GetProcessHeap(), 0, list );
 370     return retvalue;
 371 }
 372
 373
 374 /***********************************************************************
 375  *           WINPOS_WindowFromPoint
 376  *
 377  * Find the window and hittest for a given point.
 378  */
 379 HWND WINPOS_WindowFromPoint( HWND hwndScope, POINT pt, INT *hittest )
 380 {
 381     POINT xy = pt;
 382     int res;
 383     LONG style;
 384
 385     TRACE("scope %p %ld,%ld\n", hwndScope, pt.x, pt.y);
 386
 387     if (!hwndScope) hwndScope = GetDesktopWindow();
 388     style = GetWindowLongW( hwndScope, GWL_STYLE );
 389
 390     *hittest = HTERROR;
 391     if (style & WS_DISABLED) return 0;
 392
 393     MapWindowPoints( GetDesktopWindow(), GetAncestor( hwndScope, GA_PARENT ), &xy, 1 );
 394
 395     if (!(style & WS_MINIMIZE))
 396     {
 397         RECT rectClient;
 398         if (WIN_GetRectangles( hwndScope, NULL, &rectClient ) && PtInRect( &rectClient, xy ))
 399         {
 400             HWND ret;
 401
 402             xy.x -= rectClient.left;
 403             xy.y -= rectClient.top;
 404             if ((ret = find_child_from_point( hwndScope, xy, hittest, MAKELONG( pt.x, pt.y ) )))
 405             {
 406                 TRACE( "found child %p\n", ret );
 407                 return ret;
 408             }
 409         }
 410     }
 411
 412     /* If nothing found, try the scope window */
 413     if (!WIN_IsCurrentThread( hwndScope ))
 414     {
 415         *hittest = HTCLIENT;
 416         TRACE( "returning %p\n", hwndScope );
 417         return hwndScope;
 418     }
 419     res = SendMessageA( hwndScope, WM_NCHITTEST, 0, MAKELONG( pt.x, pt.y ) );
 420     if (res != HTTRANSPARENT)
 421     {
 422         *hittest = res;  /* Found the window */
 423         TRACE( "returning %p\n", hwndScope );
 424         return hwndScope;
 425     }
 426     *hittest = HTNOWHERE;
 427     TRACE( "nothing found\n" );
 428     return 0;
 429 }
 430
 431
 432 /*******************************************************************
 433  *              WindowFromPoint (USER32.@)
 434  */
 435 HWND WINAPI WindowFromPoint( POINT pt )
 436 {
 437     INT hittest;
 438     return WINPOS_WindowFromPoint( 0, pt, &hittest );
 439 }
 440
 441
 442 /*******************************************************************
 443  *              ChildWindowFromPoint (USER32.@)
 444  */
 445 HWND WINAPI ChildWindowFromPoint( HWND hwndParent, POINT pt )
 446 {
 447     return ChildWindowFromPointEx( hwndParent, pt, CWP_ALL );
 448 }
 449
 450 /*******************************************************************
 451  *              ChildWindowFromPointEx (USER32.@)
 452  */
 453 HWND WINAPI ChildWindowFromPointEx( HWND hwndParent, POINT pt, UINT uFlags)
 454 {
 455     /* pt is in the client coordinates */
 456     HWND *list;
 457     int i;
 458     RECT rect;
 459     HWND retvalue;
 460
 461     GetClientRect( hwndParent, &rect );
 462     if (!PtInRect( &rect, pt )) return 0;
 463     if (!(list = WIN_ListChildren( hwndParent ))) return 0;
 464
 465     for (i = 0; list[i]; i++)
 466     {
 467         if (!WIN_GetRectangles( list[i], &rect, NULL )) continue;
 468         if (!PtInRect( &rect, pt )) continue;
 469         if (uFlags & (CWP_SKIPINVISIBLE|CWP_SKIPDISABLED))
 470         {
 471             LONG style = GetWindowLongW( list[i], GWL_STYLE );
 472             if ((uFlags & CWP_SKIPINVISIBLE) && !(style & WS_VISIBLE)) continue;
 473             if ((uFlags & CWP_SKIPDISABLED) && (style & WS_DISABLED)) continue;
 474         }
 475         if (uFlags & CWP_SKIPTRANSPARENT)
 476         {
 477             if (GetWindowLongW( list[i], GWL_EXSTYLE ) & WS_EX_TRANSPARENT) continue;
 478         }
 479         break;
 480     }
 481     retvalue = list[i];
 482     HeapFree( GetProcessHeap(), 0, list );
 483     if (!retvalue) retvalue = hwndParent;
 484     return retvalue;
 485 }
 486
 487
 488 /*******************************************************************
 489  *         WINPOS_GetWinOffset
 490  *
 491  * Calculate the offset between the origin of the two windows. Used
 492  * to implement MapWindowPoints.
 493  */
 494 static void WINPOS_GetWinOffset( HWND hwndFrom, HWND hwndTo, POINT *offset )
 495 {
 496     WND * wndPtr;
 497
 498     offset->x = offset->y = 0;
 499
 500     /* Translate source window origin to screen coords */
 501     if (hwndFrom)
 502     {
 503         HWND hwnd = hwndFrom;
 504
 505         while (hwnd)
 506         {
 507             if (hwnd == hwndTo) return;
 508             if (!(wndPtr = WIN_GetPtr( hwnd )))
 509             {
 510                 ERR( "bad hwndFrom = %p\n", hwnd );
 511                 return;
 512             }
 513             if (wndPtr == WND_OTHER_PROCESS) goto other_process;
 514             offset->x += wndPtr->rectClient.left;
 515             offset->y += wndPtr->rectClient.top;
 516             hwnd = wndPtr->parent;
 517             WIN_ReleasePtr( wndPtr );
 518         }
 519     }
 520
 521     /* Translate origin to destination window coords */
 522     if (hwndTo)
 523     {
 524         HWND hwnd = hwndTo;
 525
 526         while (hwnd)
 527         {
 528             if (!(wndPtr = WIN_GetPtr( hwnd )))
 529             {
 530                 ERR( "bad hwndTo = %p\n", hwnd );
 531                 return;
 532             }
 533             if (wndPtr == WND_OTHER_PROCESS) goto other_process;
 534             offset->x -= wndPtr->rectClient.left;
 535             offset->y -= wndPtr->rectClient.top;
 536             hwnd = wndPtr->parent;
 537             WIN_ReleasePtr( wndPtr );
 538         }
 539     }
 540     return;
 541
 542  other_process:  /* one of the parents may belong to another process, do it the hard way */
 543     offset->x = offset->y = 0;
 544     SERVER_START_REQ( get_windows_offset )
 545     {
 546         req->from = hwndFrom;
 547         req->to   = hwndTo;
 548         if (!wine_server_call( req ))
 549         {
 550             offset->x = reply->x;
 551             offset->y = reply->y;
 552         }
 553     }
 554     SERVER_END_REQ;
 555 }
 556
 557
 558 /*******************************************************************
 559  *              MapWindowPoints (USER.258)
 560  */
 561 void WINAPI MapWindowPoints16( HWND16 hwndFrom, HWND16 hwndTo,
 562                                LPPOINT16 lppt, UINT16 count )
 563 {
 564     POINT offset;
 565
 566     WINPOS_GetWinOffset( WIN_Handle32(hwndFrom), WIN_Handle32(hwndTo), &offset );
 567     while (count--)
 568     {
 569         lppt->x += offset.x;
 570         lppt->y += offset.y;
 571         lppt++;
 572     }
 573 }
 574
 575
 576 /*******************************************************************
 577  *              MapWindowPoints (USER32.@)
 578  */
 579 INT WINAPI MapWindowPoints( HWND hwndFrom, HWND hwndTo, LPPOINT lppt, UINT count )
 580 {
 581     POINT offset;
 582
 583     WINPOS_GetWinOffset( hwndFrom, hwndTo, &offset );
 584     while (count--)
 585     {
 586         lppt->x += offset.x;
 587         lppt->y += offset.y;
 588         lppt++;
 589     }
 590     return MAKELONG( LOWORD(offset.x), LOWORD(offset.y) );
 591 }
 592
 593
 594 /***********************************************************************
 595  *              IsIconic (USER32.@)
 596  */
 597 BOOL WINAPI IsIconic(HWND hWnd)
 598 {
 599     return (GetWindowLongW( hWnd, GWL_STYLE ) & WS_MINIMIZE) != 0;
 600 }
 601
 602
 603 /***********************************************************************
 604  *              IsZoomed (USER32.@)
 605  */
 606 BOOL WINAPI IsZoomed(HWND hWnd)
 607 {
 608     return (GetWindowLongW( hWnd, GWL_STYLE ) & WS_MAXIMIZE) != 0;
 609 }
 610
 611
 612 /*******************************************************************
 613  *              AllowSetForegroundWindow (USER32.@)
 614  */
 615 BOOL WINAPI AllowSetForegroundWindow( DWORD procid )
 616 {
 617     /* FIXME: If Win98/2000 style SetForegroundWindow behavior is
 618      * implemented, then fix this function. */
 619     return TRUE;
 620 }
 621
 622
 623 /*******************************************************************
 624  *              LockSetForegroundWindow (USER32.@)
 625  */
 626 BOOL WINAPI LockSetForegroundWindow( UINT lockcode )
 627 {
 628     /* FIXME: If Win98/2000 style SetForegroundWindow behavior is
 629      * implemented, then fix this function. */
 630     return TRUE;
 631 }
 632
 633
 634 /***********************************************************************
 635  *              BringWindowToTop (USER32.@)
 636  */
 637 BOOL WINAPI BringWindowToTop( HWND hwnd )
 638 {
 639     return SetWindowPos( hwnd, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE );
 640 }
 641
 642
 643 /***********************************************************************
 644  *              MoveWindow (USER32.@)
 645  */
 646 BOOL WINAPI MoveWindow( HWND hwnd, INT x, INT y, INT cx, INT cy,
 647                             BOOL repaint )
 648 {
 649     int flags = SWP_NOZORDER | SWP_NOACTIVATE;
 650     if (!repaint) flags |= SWP_NOREDRAW;
 651     TRACE("%p %d,%d %dx%d %d\n", hwnd, x, y, cx, cy, repaint );
 652     return SetWindowPos( hwnd, 0, x, y, cx, cy, flags );
 653 }
 654
 655 /***********************************************************************
 656  *           WINPOS_InitInternalPos
 657  */
 658 static LPINTERNALPOS WINPOS_InitInternalPos( WND* wnd, POINT pt, const RECT *restoreRect )
 659 {
 660     LPINTERNALPOS lpPos = (LPINTERNALPOS) GetPropA( wnd->hwndSelf,
 661                                                       atomInternalPos );
 662     if( !lpPos )
 663     {
 664         /* this happens when the window is minimized/maximized
 665          * for the first time (rectWindow is not adjusted yet) */
 666
 667         lpPos = HeapAlloc( GetProcessHeap(), 0, sizeof(INTERNALPOS) );
 668         if( !lpPos ) return NULL;
 669
 670         SetPropA( wnd->hwndSelf, atomInternalPos, (HANDLE)lpPos );
 671         lpPos->hwndIconTitle = 0; /* defer until needs to be shown */
 672         CONV_RECT32TO16( &wnd->rectWindow, &lpPos->rectNormal );
 673         *(UINT*)&lpPos->ptIconPos = *(UINT*)&lpPos->ptMaxPos = 0xFFFFFFFF;
 674     }
 675
 676     if( wnd->dwStyle & WS_MINIMIZE )
 677         CONV_POINT32TO16( &pt, &lpPos->ptIconPos );
 678     else if( wnd->dwStyle & WS_MAXIMIZE )
 679         CONV_POINT32TO16( &pt, &lpPos->ptMaxPos );
 680     else if( restoreRect )
 681         CONV_RECT32TO16( restoreRect, &lpPos->rectNormal );
 682
 683     return lpPos;
 684 }
 685
 686 /***********************************************************************
 687  *           WINPOS_RedrawIconTitle
 688  */
 689 BOOL WINPOS_RedrawIconTitle( HWND hWnd )
 690 {
 691     LPINTERNALPOS lpPos = (LPINTERNALPOS)GetPropA( hWnd, atomInternalPos );
 692     if( lpPos )
 693     {
 694         if( lpPos->hwndIconTitle )
 695         {
 696             SendMessageA( lpPos->hwndIconTitle, WM_SHOWWINDOW, TRUE, 0);
 697             InvalidateRect( lpPos->hwndIconTitle, NULL, TRUE );
 698             return TRUE;
 699         }
 700     }
 701     return FALSE;
 702 }
 703
 704 /***********************************************************************
 705  *           WINPOS_ShowIconTitle
 706  */
 707 BOOL WINPOS_ShowIconTitle( HWND hwnd, BOOL bShow )
 708 {
 709     LPINTERNALPOS lpPos = (LPINTERNALPOS)GetPropA( hwnd, atomInternalPos );
 710
 711     if( lpPos && !(GetWindowLongA( hwnd, GWL_EXSTYLE) & WS_EX_MANAGED))
 712     {
 713         HWND title = lpPos->hwndIconTitle;
 714
 715         TRACE("%p %i\n", hwnd, (bShow != 0) );
 716
 717         if( !title )
 718             lpPos->hwndIconTitle = title = ICONTITLE_Create( hwnd );
 719         if( bShow )
 720         {
 721             if (!IsWindowVisible(title))
 722             {
 723                 SendMessageA( title, WM_SHOWWINDOW, TRUE, 0 );
 724                 SetWindowPos( title, 0, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE |
 725                               SWP_NOACTIVATE | SWP_NOZORDER | SWP_SHOWWINDOW );
 726             }
 727         }
 728         else ShowWindow( title, SW_HIDE );
 729     }
 730     return FALSE;
 731 }
 732
 733 /*******************************************************************
 734  *           WINPOS_GetMinMaxInfo
 735  *
 736  * Get the minimized and maximized information for a window.
 737  */
 738 void WINPOS_GetMinMaxInfo( HWND hwnd, POINT *maxSize, POINT *maxPos,
 739                            POINT *minTrack, POINT *maxTrack )
 740 {
 741     LPINTERNALPOS lpPos;
 742     MINMAXINFO MinMax;
 743     INT xinc, yinc;
 744     LONG style = GetWindowLongA( hwnd, GWL_STYLE );
 745     LONG exstyle = GetWindowLongA( hwnd, GWL_EXSTYLE );
 746     RECT rc;
 747
 748     /* Compute default values */
 749
 750     GetWindowRect(hwnd, &rc);
 751     MinMax.ptReserved.x = rc.left;
 752     MinMax.ptReserved.y = rc.top;
 753
 754     if (style & WS_CHILD)
 755     {
 756         if ((style & WS_CAPTION) == WS_CAPTION)
 757             style &= ~WS_BORDER; /* WS_CAPTION = WS_DLGFRAME | WS_BORDER */
 758
 759         GetClientRect(GetParent(hwnd), &rc);
 760         AdjustWindowRectEx(&rc, style, 0, exstyle);
 761
 762         /* avoid calculating this twice */
 763         style &= ~(WS_DLGFRAME | WS_BORDER | WS_THICKFRAME);
 764
 765         MinMax.ptMaxSize.x = rc.right - rc.left;
 766         MinMax.ptMaxSize.y = rc.bottom - rc.top;
 767     }
 768     else
 769     {
 770         MinMax.ptMaxSize.x = GetSystemMetrics(SM_CXSCREEN);
 771         MinMax.ptMaxSize.y = GetSystemMetrics(SM_CYSCREEN);
 772     }
 773     MinMax.ptMinTrackSize.x = GetSystemMetrics(SM_CXMINTRACK);
 774     MinMax.ptMinTrackSize.y = GetSystemMetrics(SM_CYMINTRACK);
 775     MinMax.ptMaxTrackSize.x = GetSystemMetrics(SM_CXSCREEN);
 776     MinMax.ptMaxTrackSize.y = GetSystemMetrics(SM_CYSCREEN);
 777
 778     if (HAS_DLGFRAME( style, exstyle ))
 779     {
 780         xinc = GetSystemMetrics(SM_CXDLGFRAME);
 781         yinc = GetSystemMetrics(SM_CYDLGFRAME);
 782     }
 783     else
 784     {
 785         xinc = yinc = 0;
 786         if (HAS_THICKFRAME(style))
 787         {
 788             xinc += GetSystemMetrics(SM_CXFRAME);
 789             yinc += GetSystemMetrics(SM_CYFRAME);
 790         }
 791         if (style & WS_BORDER)
 792         {
 793             xinc += GetSystemMetrics(SM_CXBORDER);
 794             yinc += GetSystemMetrics(SM_CYBORDER);
 795         }
 796     }
 797     MinMax.ptMaxSize.x += 2 * xinc;
 798     MinMax.ptMaxSize.y += 2 * yinc;
 799
 800     lpPos = (LPINTERNALPOS)GetPropA( hwnd, atomInternalPos );
 801     if( lpPos && !EMPTYPOINT(lpPos->ptMaxPos) )
 802         CONV_POINT16TO32( &lpPos->ptMaxPos, &MinMax.ptMaxPosition );
 803     else
 804     {
 805         MinMax.ptMaxPosition.x = -xinc;
 806         MinMax.ptMaxPosition.y = -yinc;
 807     }
 808
 809     SendMessageA( hwnd, WM_GETMINMAXINFO, 0, (LPARAM)&MinMax );
 810
 811       /* Some sanity checks */
 812
 813     TRACE("%ld %ld / %ld %ld / %ld %ld / %ld %ld\n",
 814                       MinMax.ptMaxSize.x, MinMax.ptMaxSize.y,
 815                       MinMax.ptMaxPosition.x, MinMax.ptMaxPosition.y,
 816                       MinMax.ptMaxTrackSize.x, MinMax.ptMaxTrackSize.y,
 817                       MinMax.ptMinTrackSize.x, MinMax.ptMinTrackSize.y);
 818     MinMax.ptMaxTrackSize.x = max( MinMax.ptMaxTrackSize.x,
 819                                    MinMax.ptMinTrackSize.x );
 820     MinMax.ptMaxTrackSize.y = max( MinMax.ptMaxTrackSize.y,
 821                                    MinMax.ptMinTrackSize.y );
 822
 823     if (maxSize) *maxSize = MinMax.ptMaxSize;
 824     if (maxPos) *maxPos = MinMax.ptMaxPosition;
 825     if (minTrack) *minTrack = MinMax.ptMinTrackSize;
 826     if (maxTrack) *maxTrack = MinMax.ptMaxTrackSize;
 827 }
 828
 829 /***********************************************************************
 830  *              ShowWindowAsync (USER32.@)
 831  *
 832  * doesn't wait; returns immediately.
 833  * used by threads to toggle windows in other (possibly hanging) threads
 834  */
 835 BOOL WINAPI ShowWindowAsync( HWND hwnd, INT cmd )
 836 {
 837     HWND full_handle;
 838
 839     if (is_broadcast(hwnd))
 840     {
 841         SetLastError( ERROR_INVALID_PARAMETER );
 842         return FALSE;
 843     }
 844
 845     if ((full_handle = WIN_IsCurrentThread( hwnd )))
 846         return USER_Driver.pShowWindow( full_handle, cmd );
 847     return SendNotifyMessageW( hwnd, WM_WINE_SHOWWINDOW, cmd, 0 );
 848 }
 849
 850
 851 /***********************************************************************
 852  *              ShowWindow (USER32.@)
 853  */
 854 BOOL WINAPI ShowWindow( HWND hwnd, INT cmd )
 855 {
 856     HWND full_handle;
 857
 858     if (is_broadcast(hwnd))
 859     {
 860         SetLastError( ERROR_INVALID_PARAMETER );
 861         return FALSE;
 862     }
 863     if ((full_handle = WIN_IsCurrentThread( hwnd )))
 864     {
 865         if (USER_Driver.pShowWindow)
 866             return USER_Driver.pShowWindow( full_handle, cmd );
 867         return FALSE;
 868     }
 869     return SendMessageW( hwnd, WM_WINE_SHOWWINDOW, cmd, 0 );
 870 }
 871
 872
 873 /***********************************************************************
 874  *              GetInternalWindowPos (USER32.@)
 875  */
 876 UINT WINAPI GetInternalWindowPos( HWND hwnd, LPRECT rectWnd,
 877                                       LPPOINT ptIcon )
 878 {
 879     WINDOWPLACEMENT wndpl;
 880     if (GetWindowPlacement( hwnd, &wndpl ))
 881     {
 882         if (rectWnd) *rectWnd = wndpl.rcNormalPosition;
 883         if (ptIcon)  *ptIcon = wndpl.ptMinPosition;
 884         return wndpl.showCmd;
 885     }
 886     return 0;
 887 }
 888
 889
 890 /***********************************************************************
 891  *              GetWindowPlacement (USER32.@)
 892  *
 893  * Win95:
 894  * Fails if wndpl->length of Win95 (!) apps is invalid.
 895  */
 896 BOOL WINAPI GetWindowPlacement( HWND hwnd, WINDOWPLACEMENT *wndpl )
 897 {
 898     WND *pWnd = WIN_FindWndPtr( hwnd );
 899     LPINTERNALPOS lpPos;
 900
 901     if(!pWnd ) return FALSE;
 902
 903     lpPos = WINPOS_InitInternalPos( pWnd, *(LPPOINT)&pWnd->rectWindow.left, &pWnd->rectWindow );
 904     wndpl->length  = sizeof(*wndpl);
 905     if( pWnd->dwStyle & WS_MINIMIZE )
 906         wndpl->showCmd = SW_SHOWMINIMIZED;
 907     else
 908         wndpl->showCmd = ( pWnd->dwStyle & WS_MAXIMIZE ) ? SW_SHOWMAXIMIZED : SW_SHOWNORMAL ;
 909     if( pWnd->flags & WIN_RESTORE_MAX )
 910         wndpl->flags = WPF_RESTORETOMAXIMIZED;
 911     else
 912         wndpl->flags = 0;
 913     CONV_POINT16TO32( &lpPos->ptIconPos, &wndpl->ptMinPosition );
 914     CONV_POINT16TO32( &lpPos->ptMaxPos, &wndpl->ptMaxPosition );
 915     CONV_RECT16TO32( &lpPos->rectNormal, &wndpl->rcNormalPosition );
 916     WIN_ReleaseWndPtr(pWnd);
 917     return TRUE;
 918 }
 919
 920
 921 /***********************************************************************
 922  *           WINPOS_SetPlacement
 923  */
 924 static BOOL WINPOS_SetPlacement( HWND hwnd, const WINDOWPLACEMENT *wndpl, UINT flags )
 925 {
 926     WND *pWnd = WIN_FindWndPtr( hwnd );
 927     if( pWnd )
 928     {
 929         LPINTERNALPOS lpPos = (LPINTERNALPOS)WINPOS_InitInternalPos( pWnd,
 930                              *(LPPOINT)&pWnd->rectWindow.left, &pWnd->rectWindow );
 931
 932         if( flags & PLACE_MIN ) CONV_POINT32TO16( &wndpl->ptMinPosition, &lpPos->ptIconPos );
 933         if( flags & PLACE_MAX ) CONV_POINT32TO16( &wndpl->ptMaxPosition, &lpPos->ptMaxPos );
 934         if( flags & PLACE_RECT) CONV_RECT32TO16( &wndpl->rcNormalPosition, &lpPos->rectNormal );
 935
 936         if( pWnd->dwStyle & WS_MINIMIZE )
 937         {
 938             WINPOS_ShowIconTitle( pWnd->hwndSelf, FALSE );
 939             if( wndpl->flags & WPF_SETMINPOSITION && !EMPTYPOINT(lpPos->ptIconPos))
 940                 SetWindowPos( hwnd, 0, lpPos->ptIconPos.x, lpPos->ptIconPos.y,
 941                                 0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 942         }
 943         else if( pWnd->dwStyle & WS_MAXIMIZE )
 944         {
 945             if( !EMPTYPOINT(lpPos->ptMaxPos) )
 946                 SetWindowPos( hwnd, 0, lpPos->ptMaxPos.x, lpPos->ptMaxPos.y,
 947                                 0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 948         }
 949         else if( flags & PLACE_RECT )
 950                 SetWindowPos( hwnd, 0, lpPos->rectNormal.left, lpPos->rectNormal.top,
 951                                 lpPos->rectNormal.right - lpPos->rectNormal.left,
 952                                 lpPos->rectNormal.bottom - lpPos->rectNormal.top,
 953                                 SWP_NOZORDER | SWP_NOACTIVATE );
 954
 955         ShowWindow( hwnd, wndpl->showCmd );
 956         if( IsWindow(hwnd) && pWnd->dwStyle & WS_MINIMIZE )
 957         {
 958             if( pWnd->dwStyle & WS_VISIBLE ) WINPOS_ShowIconTitle( pWnd->hwndSelf, TRUE );
 959
 960             /* SDK: ...valid only the next time... */
 961             if( wndpl->flags & WPF_RESTORETOMAXIMIZED ) pWnd->flags |= WIN_RESTORE_MAX;
 962         }
 963         WIN_ReleaseWndPtr(pWnd);
 964         return TRUE;
 965     }
 966     return FALSE;
 967 }
 968
 969
 970 /***********************************************************************
 971  *              SetWindowPlacement (USER32.@)
 972  *
 973  * Win95:
 974  * Fails if wndpl->length of Win95 (!) apps is invalid.
 975  */
 976 BOOL WINAPI SetWindowPlacement( HWND hwnd, const WINDOWPLACEMENT *wpl )
 977 {
 978     if (!wpl) return FALSE;
 979     return WINPOS_SetPlacement( hwnd, wpl, PLACE_MIN | PLACE_MAX | PLACE_RECT );
 980 }
 981
 982
 983 /***********************************************************************
 984  *              AnimateWindow (USER32.@)
 985  *              Shows/Hides a window with an animation
 986  *              NO ANIMATION YET
 987  */
 988 BOOL WINAPI AnimateWindow(HWND hwnd, DWORD dwTime, DWORD dwFlags)
 989 {
 990         FIXME("partial stub\n");
 991
 992         /* If trying to show/hide and it's already   *
 993          * shown/hidden or invalid window, fail with *
 994          * invalid parameter                         */
 995         if(!IsWindow(hwnd) ||
 996            (IsWindowVisible(hwnd) && !(dwFlags & AW_HIDE)) ||
 997            (!IsWindowVisible(hwnd) && (dwFlags & AW_HIDE)))
 998         {
 999                 SetLastError(ERROR_INVALID_PARAMETER);
1000                 return FALSE;
1001         }
1002
1003         ShowWindow(hwnd, (dwFlags & AW_HIDE) ? SW_HIDE : ((dwFlags & AW_ACTIVATE) ? SW_SHOW : SW_SHOWNA));
1004
1005         return TRUE;
1006 }
1007
1008 /***********************************************************************
1009  *              SetInternalWindowPos (USER32.@)
1010  */
1011 void WINAPI SetInternalWindowPos( HWND hwnd, UINT showCmd,
1012                                     LPRECT rect, LPPOINT pt )
1013 {
1014     if( IsWindow(hwnd) )
1015     {
1016         WINDOWPLACEMENT wndpl;
1017         UINT flags;
1018
1019         wndpl.length  = sizeof(wndpl);
1020         wndpl.showCmd = showCmd;
1021         wndpl.flags = flags = 0;
1022
1023         if( pt )
1024         {
1025             flags |= PLACE_MIN;
1026             wndpl.flags |= WPF_SETMINPOSITION;
1027             wndpl.ptMinPosition = *pt;
1028         }
1029         if( rect )
1030         {
1031             flags |= PLACE_RECT;
1032             wndpl.rcNormalPosition = *rect;
1033         }
1034         WINPOS_SetPlacement( hwnd, &wndpl, flags );
1035     }
1036 }
1037
1038
1039 /*******************************************************************
1040  *         can_activate_window
1041  *
1042  * Check if we can activate the specified window.
1043  */
1044 static BOOL can_activate_window( HWND hwnd )
1045 {
1046     LONG style;
1047
1048     if (!hwnd) return FALSE;
1049     style = GetWindowLongW( hwnd, GWL_STYLE );
1050     if (!(style & WS_VISIBLE)) return FALSE;
1051     if ((style & (WS_POPUP|WS_CHILD)) == WS_CHILD) return FALSE;
1052     return !(style & WS_DISABLED);
1053 }
1054
1055
1056 /*******************************************************************
1057  *         WINPOS_ActivateOtherWindow
1058  *
1059  *  Activates window other than pWnd.
1060  */
1061 void WINPOS_ActivateOtherWindow(HWND hwnd)
1062 {
1063     HWND hwndTo, fg;
1064
1065     if ((GetWindowLongW( hwnd, GWL_STYLE ) & WS_POPUP) && (hwndTo = GetWindow( hwnd, GW_OWNER )))
1066     {
1067         hwndTo = GetAncestor( hwndTo, GA_ROOT );
1068         if (can_activate_window( hwndTo )) goto done;
1069     }
1070
1071     hwndTo = hwnd;
1072     for (;;)
1073     {
1074         if (!(hwndTo = GetWindow( hwndTo, GW_HWNDNEXT ))) break;
1075         if (can_activate_window( hwndTo )) break;
1076     }
1077
1078  done:
1079     fg = GetForegroundWindow();
1080     TRACE("win = %p fg = %p\n", hwndTo, fg);
1081     if (!fg || (hwnd == fg))
1082     {
1083         if (SetForegroundWindow( hwndTo )) return;
1084     }
1085     if (!SetActiveWindow( hwndTo )) SetActiveWindow(0);
1086 }
1087
1088
1089 /***********************************************************************
1090  *           WINPOS_HandleWindowPosChanging16
1091  *
1092  * Default handling for a WM_WINDOWPOSCHANGING. Called from DefWindowProc().
1093  */
1094 LONG WINPOS_HandleWindowPosChanging16( HWND hwnd, WINDOWPOS16 *winpos )
1095 {
1096     POINT minTrack, maxTrack;
1097     LONG style = GetWindowLongW( hwnd, GWL_STYLE );
1098
1099     if (winpos->flags & SWP_NOSIZE) return 0;
1100     if ((style & WS_THICKFRAME) || ((style & (WS_POPUP | WS_CHILD)) == 0))
1101     {
1102         WINPOS_GetMinMaxInfo( hwnd, NULL, NULL, &minTrack, &maxTrack );
1103         if (winpos->cx > maxTrack.x) winpos->cx = maxTrack.x;
1104         if (winpos->cy > maxTrack.y) winpos->cy = maxTrack.y;
1105         if (!(style & WS_MINIMIZE))
1106         {
1107             if (winpos->cx < minTrack.x ) winpos->cx = minTrack.x;
1108             if (winpos->cy < minTrack.y ) winpos->cy = minTrack.y;
1109         }
1110     }
1111     return 0;
1112 }
1113
1114
1115 /***********************************************************************
1116  *           WINPOS_HandleWindowPosChanging
1117  *
1118  * Default handling for a WM_WINDOWPOSCHANGING. Called from DefWindowProc().
1119  */
1120 LONG WINPOS_HandleWindowPosChanging( HWND hwnd, WINDOWPOS *winpos )
1121 {
1122     POINT minTrack, maxTrack;
1123     LONG style = GetWindowLongW( hwnd, GWL_STYLE );
1124
1125     if (winpos->flags & SWP_NOSIZE) return 0;
1126     if ((style & WS_THICKFRAME) || ((style & (WS_POPUP | WS_CHILD)) == 0))
1127     {
1128         WINPOS_GetMinMaxInfo( hwnd, NULL, NULL, &minTrack, &maxTrack );
1129         if (winpos->cx > maxTrack.x) winpos->cx = maxTrack.x;
1130         if (winpos->cy > maxTrack.y) winpos->cy = maxTrack.y;
1131         if (!(style & WS_MINIMIZE))
1132         {
1133             if (winpos->cx < minTrack.x ) winpos->cx = minTrack.x;
1134             if (winpos->cy < minTrack.y ) winpos->cy = minTrack.y;
1135         }
1136     }
1137     return 0;
1138 }
1139
1140
1141 /***********************************************************************
1142  *           dump_winpos_flags
1143  */
1144 static void dump_winpos_flags(UINT flags)
1145 {
1146     TRACE("flags:");
1147     if(flags & SWP_NOSIZE) TRACE(" SWP_NOSIZE");
1148     if(flags & SWP_NOMOVE) TRACE(" SWP_NOMOVE");
1149     if(flags & SWP_NOZORDER) TRACE(" SWP_NOZORDER");
1150     if(flags & SWP_NOREDRAW) TRACE(" SWP_NOREDRAW");
1151     if(flags & SWP_NOACTIVATE) TRACE(" SWP_NOACTIVATE");
1152     if(flags & SWP_FRAMECHANGED) TRACE(" SWP_FRAMECHANGED");
1153     if(flags & SWP_SHOWWINDOW) TRACE(" SWP_SHOWWINDOW");
1154     if(flags & SWP_HIDEWINDOW) TRACE(" SWP_HIDEWINDOW");
1155     if(flags & SWP_NOCOPYBITS) TRACE(" SWP_NOCOPYBITS");
1156     if(flags & SWP_NOOWNERZORDER) TRACE(" SWP_NOOWNERZORDER");
1157     if(flags & SWP_NOSENDCHANGING) TRACE(" SWP_NOSENDCHANGING");
1158     if(flags & SWP_DEFERERASE) TRACE(" SWP_DEFERERASE");
1159     if(flags & SWP_ASYNCWINDOWPOS) TRACE(" SWP_ASYNCWINDOWPOS");
1160
1161 #define DUMPED_FLAGS \
1162     (SWP_NOSIZE | \
1163     SWP_NOMOVE | \
1164     SWP_NOZORDER | \
1165     SWP_NOREDRAW | \
1166     SWP_NOACTIVATE | \
1167     SWP_FRAMECHANGED | \
1168     SWP_SHOWWINDOW | \
1169     SWP_HIDEWINDOW | \
1170     SWP_NOCOPYBITS | \
1171     SWP_NOOWNERZORDER | \
1172     SWP_NOSENDCHANGING | \
1173     SWP_DEFERERASE | \
1174     SWP_ASYNCWINDOWPOS)
1175
1176     if(flags & ~DUMPED_FLAGS) TRACE(" %08x", flags & ~DUMPED_FLAGS);
1177     TRACE("\n");
1178 #undef DUMPED_FLAGS
1179 }
1180
1181 /***********************************************************************
1182  *              SetWindowPos (USER32.@)
1183  */
1184 BOOL WINAPI SetWindowPos( HWND hwnd, HWND hwndInsertAfter,
1185                           INT x, INT y, INT cx, INT cy, UINT flags )
1186 {
1187     WINDOWPOS winpos;
1188
1189     TRACE("hwnd %p, after %p, %d,%d (%dx%d), flags %08x\n",
1190           hwnd, hwndInsertAfter, x, y, cx, cy, flags);
1191     if(TRACE_ON(win)) dump_winpos_flags(flags);
1192
1193     if (is_broadcast(hwnd))
1194     {
1195         SetLastError( ERROR_INVALID_PARAMETER );
1196         return FALSE;
1197     }
1198
1199     winpos.hwnd = WIN_GetFullHandle(hwnd);
1200     winpos.hwndInsertAfter = WIN_GetFullHandle(hwndInsertAfter);
1201     winpos.x = x;
1202     winpos.y = y;
1203     winpos.cx = cx;
1204     winpos.cy = cy;
1205     winpos.flags = flags;
1206     if (WIN_IsCurrentThread( hwnd )) return USER_Driver.pSetWindowPos( &winpos );
1207     return SendMessageW( winpos.hwnd, WM_WINE_SETWINDOWPOS, 0, (LPARAM)&winpos );
1208 }
1209
1210
1211 /***********************************************************************
1212  *              BeginDeferWindowPos (USER32.@)
1213  */
1214 HDWP WINAPI BeginDeferWindowPos( INT count )
1215 {
1216     HDWP handle;
1217     DWP *pDWP;
1218
1219     TRACE("%d\n", count);
1220
1221     if (count < 0)
1222     {
1223         SetLastError(ERROR_INVALID_PARAMETER);
1224         return 0;
1225     }
1226     /* Windows allows zero count, in which case it allocates context for 8 moves */
1227     if (count == 0) count = 8;
1228
1229     handle = USER_HEAP_ALLOC( sizeof(DWP) + (count-1)*sizeof(WINDOWPOS) );
1230     if (!handle) return 0;
1231     pDWP = (DWP *) USER_HEAP_LIN_ADDR( handle );
1232     pDWP->actualCount    = 0;
1233     pDWP->suggestedCount = count;
1234     pDWP->valid          = TRUE;
1235     pDWP->wMagic         = DWP_MAGIC;
1236     pDWP->hwndParent     = 0;
1237
1238     TRACE("returning hdwp %p\n", handle);
1239     return handle;
1240 }
1241
1242
1243 /***********************************************************************
1244  *              DeferWindowPos (USER32.@)
1245  */
1246 HDWP WINAPI DeferWindowPos( HDWP hdwp, HWND hwnd, HWND hwndAfter,
1247                                 INT x, INT y, INT cx, INT cy,
1248                                 UINT flags )
1249 {
1250     DWP *pDWP;
1251     int i;
1252     HDWP newhdwp = hdwp,retvalue;
1253
1254     TRACE("hdwp %p, hwnd %p, after %p, %d,%d (%dx%d), flags %08x\n",
1255           hdwp, hwnd, hwndAfter, x, y, cx, cy, flags);
1256
1257     hwnd = WIN_GetFullHandle( hwnd );
1258     if (hwnd == GetDesktopWindow()) return 0;
1259
1260     if (!(pDWP = USER_HEAP_LIN_ADDR( hdwp ))) return 0;
1261
1262     USER_Lock();
1263
1264     for (i = 0; i < pDWP->actualCount; i++)
1265     {
1266         if (pDWP->winPos[i].hwnd == hwnd)
1267         {
1268               /* Merge with the other changes */
1269             if (!(flags & SWP_NOZORDER))
1270             {
1271                 pDWP->winPos[i].hwndInsertAfter = WIN_GetFullHandle(hwndAfter);
1272             }
1273             if (!(flags & SWP_NOMOVE))
1274             {
1275                 pDWP->winPos[i].x = x;
1276                 pDWP->winPos[i].y = y;
1277             }
1278             if (!(flags & SWP_NOSIZE))
1279             {
1280                 pDWP->winPos[i].cx = cx;
1281                 pDWP->winPos[i].cy = cy;
1282             }
1283             pDWP->winPos[i].flags &= flags | ~(SWP_NOSIZE | SWP_NOMOVE |
1284                                                SWP_NOZORDER | SWP_NOREDRAW |
1285                                                SWP_NOACTIVATE | SWP_NOCOPYBITS|
1286                                                SWP_NOOWNERZORDER);
1287             pDWP->winPos[i].flags |= flags & (SWP_SHOWWINDOW | SWP_HIDEWINDOW |
1288                                               SWP_FRAMECHANGED);
1289             retvalue = hdwp;
1290             goto END;
1291         }
1292     }
1293     if (pDWP->actualCount >= pDWP->suggestedCount)
1294     {
1295         newhdwp = USER_HEAP_REALLOC( hdwp,
1296                       sizeof(DWP) + pDWP->suggestedCount*sizeof(WINDOWPOS) );
1297         if (!newhdwp)
1298         {
1299             retvalue = 0;
1300             goto END;
1301         }
1302         pDWP = (DWP *) USER_HEAP_LIN_ADDR( newhdwp );
1303         pDWP->suggestedCount++;
1304     }
1305     pDWP->winPos[pDWP->actualCount].hwnd = hwnd;
1306     pDWP->winPos[pDWP->actualCount].hwndInsertAfter = hwndAfter;
1307     pDWP->winPos[pDWP->actualCount].x = x;
1308     pDWP->winPos[pDWP->actualCount].y = y;
1309     pDWP->winPos[pDWP->actualCount].cx = cx;
1310     pDWP->winPos[pDWP->actualCount].cy = cy;
1311     pDWP->winPos[pDWP->actualCount].flags = flags;
1312     pDWP->actualCount++;
1313     retvalue = newhdwp;
1314 END:
1315     USER_Unlock();
1316     return retvalue;
1317 }
1318
1319
1320 /***********************************************************************
1321  *              EndDeferWindowPos (USER32.@)
1322  */
1323 BOOL WINAPI EndDeferWindowPos( HDWP hdwp )
1324 {
1325     DWP *pDWP;
1326     WINDOWPOS *winpos;
1327     BOOL res = TRUE;
1328     int i;
1329
1330     TRACE("%p\n", hdwp);
1331
1332     pDWP = (DWP *) USER_HEAP_LIN_ADDR( hdwp );
1333     if (!pDWP) return FALSE;
1334     for (i = 0, winpos = pDWP->winPos; i < pDWP->actualCount; i++, winpos++)
1335     {
1336         if (!(res = USER_Driver.pSetWindowPos( winpos ))) break;
1337     }
1338     USER_HEAP_FREE( hdwp );
1339     return res;
1340 }
1341
1342
1343 /***********************************************************************
1344  *              TileChildWindows (USER.199)
1345  */
1346 void WINAPI TileChildWindows16( HWND16 parent, WORD action )
1347 {
1348     FIXME("(%04x, %d): stub\n", parent, action);
1349 }
1350
1351 /***********************************************************************
1352  *              CascadeChildWindows (USER.198)
1353  */
1354 void WINAPI CascadeChildWindows16( HWND16 parent, WORD action )
1355 {
1356     FIXME("(%04x, %d): stub\n", parent, action);
1357 }