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 <string.h>
  23 #include "winerror.h"
  24 #include "windef.h"
  25 #include "wingdi.h"
  26 #include "winerror.h"
  27 #include "wine/winuser16.h"
  28 #include "wine/server.h"
  29 #include "controls.h"
  30 #include "user.h"
  31 #include "win.h"
  32 #include "message.h"
  33 #include "queue.h"
  34 #include "winpos.h"
  35 #include "dce.h"
  36 #include "nonclient.h"
  37 #include "wine/debug.h"
  38 #include "input.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(win);
  41
  42 #define HAS_DLGFRAME(style,exStyle) \
  43     (((exStyle) & WS_EX_DLGMODALFRAME) || \
  44      (((style) & WS_DLGFRAME) && !((style) & WS_BORDER)))
  45
  46 #define HAS_THICKFRAME(style) \
  47     (((style) & WS_THICKFRAME) && \
  48      !(((style) & (WS_DLGFRAME|WS_BORDER)) == WS_DLGFRAME))
  49
  50 #define EMPTYPOINT(pt)          ((*(LONG*)&(pt)) == -1)
  51
  52 #define PLACE_MIN               0x0001
  53 #define PLACE_MAX               0x0002
  54 #define PLACE_RECT              0x0004
  55
  56
  57 #define DWP_MAGIC  ((INT)('W' | ('P' << 8) | ('O' << 16) | ('S' << 24)))
  58
  59 typedef struct
  60 {
  61     INT       actualCount;
  62     INT       suggestedCount;
  63     BOOL      valid;
  64     INT       wMagic;
  65     HWND      hwndParent;
  66     WINDOWPOS winPos[1];
  67 } DWP;
  68
  69 /* ----- internal variables ----- */
  70
  71 static HWND hGlobalShellWindow=0; /*the shell*/
  72 static HWND hGlobalTaskmanWindow=0;
  73 static HWND hGlobalProgmanWindow=0;
  74
  75 static LPCSTR atomInternalPos;
  76
  77
  78 /***********************************************************************
  79  *           WINPOS_CreateInternalPosAtom
  80  */
  81 BOOL WINPOS_CreateInternalPosAtom()
  82 {
  83     LPSTR str = "SysIP";
  84     atomInternalPos = (LPCSTR)(DWORD)GlobalAddAtomA(str);
  85     return (atomInternalPos) ? TRUE : FALSE;
  86 }
  87
  88 /***********************************************************************
  89  *           WINPOS_CheckInternalPos
  90  *
  91  * Called when a window is destroyed.
  92  */
  93 void WINPOS_CheckInternalPos( HWND hwnd )
  94 {
  95     LPINTERNALPOS lpPos = (LPINTERNALPOS) GetPropA( hwnd, atomInternalPos );
  96
  97     if( lpPos )
  98     {
  99         if( IsWindow(lpPos->hwndIconTitle) )
 100             DestroyWindow( lpPos->hwndIconTitle );
 101         HeapFree( GetProcessHeap(), 0, lpPos );
 102     }
 103 }
 104
 105 /***********************************************************************
 106  *              ArrangeIconicWindows (USER32.@)
 107  */
 108 UINT WINAPI ArrangeIconicWindows( HWND parent )
 109 {
 110     RECT rectParent;
 111     HWND hwndChild;
 112     INT x, y, xspacing, yspacing;
 113
 114     GetClientRect( parent, &rectParent );
 115     x = rectParent.left;
 116     y = rectParent.bottom;
 117     xspacing = GetSystemMetrics(SM_CXICONSPACING);
 118     yspacing = GetSystemMetrics(SM_CYICONSPACING);
 119
 120     hwndChild = GetWindow( parent, GW_CHILD );
 121     while (hwndChild)
 122     {
 123         if( IsIconic( hwndChild ) )
 124         {
 125             WINPOS_ShowIconTitle( hwndChild, FALSE );
 126
 127             SetWindowPos( hwndChild, 0, x + (xspacing - GetSystemMetrics(SM_CXICON)) / 2,
 128                             y - yspacing - GetSystemMetrics(SM_CYICON)/2, 0, 0,
 129                             SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 130             if( IsWindow(hwndChild) )
 131                 WINPOS_ShowIconTitle(hwndChild , TRUE );
 132
 133             if (x <= rectParent.right - xspacing) x += xspacing;
 134             else
 135             {
 136                 x = rectParent.left;
 137                 y -= yspacing;
 138             }
 139         }
 140         hwndChild = GetWindow( hwndChild, GW_HWNDNEXT );
 141     }
 142     return yspacing;
 143 }
 144
 145
 146 /***********************************************************************
 147  *              SwitchToThisWindow (USER32.@)
 148  */
 149 void WINAPI SwitchToThisWindow( HWND hwnd, BOOL restore )
 150 {
 151     ShowWindow( hwnd, restore ? SW_RESTORE : SW_SHOWMINIMIZED );
 152 }
 153
 154
 155 /***********************************************************************
 156  *              GetWindowRect (USER32.@)
 157  */
 158 BOOL WINAPI GetWindowRect( HWND hwnd, LPRECT rect )
 159 {
 160     BOOL ret = WIN_GetRectangles( hwnd, rect, NULL );
 161     if (ret)
 162     {
 163         MapWindowPoints( GetAncestor( hwnd, GA_PARENT ), 0, (POINT *)rect, 2 );
 164         TRACE( "hwnd %p (%d,%d)-(%d,%d)\n",
 165                hwnd, rect->left, rect->top, rect->right, rect->bottom);
 166     }
 167     return ret;
 168 }
 169
 170
 171 /***********************************************************************
 172  *              GetWindowRgn (USER32.@)
 173  */
 174 int WINAPI GetWindowRgn ( HWND hwnd, HRGN hrgn )
 175 {
 176     int nRet = ERROR;
 177     WND *wndPtr = WIN_GetPtr( hwnd );
 178
 179     if (wndPtr == WND_OTHER_PROCESS)
 180     {
 181         if (IsWindow( hwnd ))
 182             FIXME( "not supported on other process window %p\n", hwnd );
 183         wndPtr = NULL;
 184     }
 185     if (!wndPtr)
 186     {
 187         SetLastError( ERROR_INVALID_WINDOW_HANDLE );
 188         return ERROR;
 189     }
 190     if (wndPtr->hrgnWnd) nRet = CombineRgn( hrgn, wndPtr->hrgnWnd, 0, RGN_COPY );
 191     WIN_ReleasePtr( wndPtr );
 192     return nRet;
 193 }
 194
 195
 196 /***********************************************************************
 197  *              SetWindowRgn (USER32.@)
 198  */
 199 int WINAPI SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL bRedraw )
 200 {
 201     RECT rect;
 202     WND *wndPtr;
 203
 204     if (hrgn) /* verify that region really exists */
 205     {
 206         if (GetRgnBox( hrgn, &rect ) == ERROR) return FALSE;
 207     }
 208
 209     if (USER_Driver.pSetWindowRgn)
 210         return USER_Driver.pSetWindowRgn( hwnd, hrgn, bRedraw );
 211
 212     if ((wndPtr = WIN_GetPtr( hwnd )) == WND_OTHER_PROCESS)
 213     {
 214         if (IsWindow( hwnd ))
 215             FIXME( "not supported on other process window %p\n", hwnd );
 216         wndPtr = NULL;
 217     }
 218     if (!wndPtr)
 219     {
 220         SetLastError( ERROR_INVALID_WINDOW_HANDLE );
 221         return FALSE;
 222     }
 223
 224     if (wndPtr->hrgnWnd == hrgn)
 225     {
 226         WIN_ReleasePtr( wndPtr );
 227         return TRUE;
 228     }
 229
 230     if (wndPtr->hrgnWnd)
 231     {
 232         /* delete previous region */
 233         DeleteObject(wndPtr->hrgnWnd);
 234         wndPtr->hrgnWnd = 0;
 235     }
 236     wndPtr->hrgnWnd = hrgn;
 237     WIN_ReleasePtr( wndPtr );
 238
 239     /* Size the window to the rectangle of the new region (if it isn't NULL) */
 240     if (hrgn) SetWindowPos( hwnd, 0, rect.left, rect.top,
 241                             rect.right  - rect.left, rect.bottom - rect.top,
 242                             SWP_NOSIZE | SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOACTIVATE |
 243                             SWP_NOZORDER | (bRedraw ? 0 : SWP_NOREDRAW) );
 244     return TRUE;
 245 }
 246
 247
 248 /***********************************************************************
 249  *              GetClientRect (USER32.@)
 250  */
 251 BOOL WINAPI GetClientRect( HWND hwnd, LPRECT rect )
 252 {
 253     BOOL ret;
 254
 255     rect->right = rect->bottom = 0;
 256     if ((ret = WIN_GetRectangles( hwnd, NULL, rect )))
 257     {
 258         rect->right -= rect->left;
 259         rect->bottom -= rect->top;
 260     }
 261     rect->left = rect->top = 0;
 262     return ret;
 263 }
 264
 265
 266 /*******************************************************************
 267  *              ClientToScreen (USER32.@)
 268  */
 269 BOOL WINAPI ClientToScreen( HWND hwnd, LPPOINT lppnt )
 270 {
 271     MapWindowPoints( hwnd, 0, lppnt, 1 );
 272     return TRUE;
 273 }
 274
 275
 276 /*******************************************************************
 277  *              ScreenToClient (USER32.@)
 278  */
 279 BOOL WINAPI ScreenToClient( HWND hwnd, LPPOINT lppnt )
 280 {
 281     MapWindowPoints( 0, hwnd, lppnt, 1 );
 282     return TRUE;
 283 }
 284
 285
 286 /***********************************************************************
 287  *           find_child_from_point
 288  *
 289  * Find the child that contains pt. Helper for WindowFromPoint.
 290  * pt is in parent client coordinates.
 291  * lparam is the param to pass in the WM_NCHITTEST message.
 292  */
 293 static HWND find_child_from_point( HWND parent, POINT pt, INT *hittest, LPARAM lparam )
 294 {
 295     int i, res;
 296     LONG style, exstyle;
 297     RECT rectWindow, rectClient;
 298     WND *wndPtr;
 299     HWND *list = WIN_ListChildren( parent );
 300     HWND retvalue = 0;
 301
 302     if (!list) return 0;
 303     for (i = 0; list[i]; i++)
 304     {
 305         /* If point is in window, and window is visible, and it  */
 306         /* is enabled (or it's a top-level window), then explore */
 307         /* its children. Otherwise, go to the next window.       */
 308
 309         style = GetWindowLongW( list[i], GWL_STYLE );
 310         if (!(style & WS_VISIBLE)) continue;  /* not visible -> skip */
 311         if ((style & (WS_POPUP | WS_CHILD | WS_DISABLED)) == (WS_CHILD | WS_DISABLED))
 312             continue;  /* disabled child -> skip */
 313         exstyle = GetWindowLongW( list[i], GWL_EXSTYLE );
 314         if ((exstyle & (WS_EX_LAYERED | WS_EX_TRANSPARENT)) == (WS_EX_LAYERED | WS_EX_TRANSPARENT))
 315             continue;  /* transparent -> skip */
 316
 317         if (!WIN_GetRectangles( list[i], &rectWindow, &rectClient )) continue;
 318         if (!PtInRect( &rectWindow, pt )) continue;  /* not in window -> skip */
 319
 320         /* FIXME: check window region for other processes too */
 321         if ((wndPtr = WIN_GetPtr( list[i] )) && wndPtr != WND_OTHER_PROCESS)
 322         {
 323             if (wndPtr->hrgnWnd && !PtInRegion( wndPtr->hrgnWnd,
 324                                                 pt.x - rectWindow.left, pt.y - rectWindow.top ))
 325             {
 326                 WIN_ReleasePtr( wndPtr );
 327                 continue;  /* point outside window region -> skip */
 328             }
 329             WIN_ReleasePtr( wndPtr );
 330         }
 331
 332         /* If window is minimized or disabled, return at once */
 333         if (style & WS_MINIMIZE)
 334         {
 335             *hittest = HTCAPTION;
 336             retvalue = list[i];
 337             break;
 338         }
 339         if (style & WS_DISABLED)
 340         {
 341             *hittest = HTERROR;
 342             retvalue = list[i];
 343             break;
 344         }
 345
 346         /* If point is in client area, explore children */
 347         if (PtInRect( &rectClient, pt ))
 348         {
 349             POINT new_pt;
 350
 351             new_pt.x = pt.x - rectClient.left;
 352             new_pt.y = pt.y - rectClient.top;
 353             if ((retvalue = find_child_from_point( list[i], new_pt, hittest, lparam ))) break;
 354         }
 355
 356         /* Now it's inside window, send WM_NCCHITTEST (if same thread) */
 357         if (!WIN_IsCurrentThread( list[i] ))
 358         {
 359             *hittest = HTCLIENT;
 360             retvalue = list[i];
 361             break;
 362         }
 363         if ((res = SendMessageA( list[i], WM_NCHITTEST, 0, lparam )) != HTTRANSPARENT)
 364         {
 365             *hittest = res;  /* Found the window */
 366             retvalue = list[i];
 367             break;
 368         }
 369         /* continue search with next sibling */
 370     }
 371     HeapFree( GetProcessHeap(), 0, list );
 372     return retvalue;
 373 }
 374
 375
 376 /***********************************************************************
 377  *           WINPOS_WindowFromPoint
 378  *
 379  * Find the window and hittest for a given point.
 380  */
 381 HWND WINPOS_WindowFromPoint( HWND hwndScope, POINT pt, INT *hittest )
 382 {
 383     POINT xy = pt;
 384     int res;
 385     LONG style;
 386
 387     TRACE("scope %p %ld,%ld\n", hwndScope, pt.x, pt.y);
 388
 389     if (!hwndScope) hwndScope = GetDesktopWindow();
 390     style = GetWindowLongW( hwndScope, GWL_STYLE );
 391
 392     *hittest = HTERROR;
 393     if (style & WS_DISABLED) return 0;
 394
 395     MapWindowPoints( GetDesktopWindow(), GetAncestor( hwndScope, GA_PARENT ), &xy, 1 );
 396
 397     if (!(style & WS_MINIMIZE))
 398     {
 399         RECT rectClient;
 400         if (WIN_GetRectangles( hwndScope, NULL, &rectClient ) && PtInRect( &rectClient, xy ))
 401         {
 402             HWND ret;
 403
 404             xy.x -= rectClient.left;
 405             xy.y -= rectClient.top;
 406             if ((ret = find_child_from_point( hwndScope, xy, hittest, MAKELONG( pt.x, pt.y ) )))
 407             {
 408                 TRACE( "found child %p\n", ret );
 409                 return ret;
 410             }
 411         }
 412     }
 413
 414     /* If nothing found, try the scope window */
 415     if (!WIN_IsCurrentThread( hwndScope ))
 416     {
 417         *hittest = HTCLIENT;
 418         TRACE( "returning %p\n", hwndScope );
 419         return hwndScope;
 420     }
 421     res = SendMessageA( hwndScope, WM_NCHITTEST, 0, MAKELONG( pt.x, pt.y ) );
 422     if (res != HTTRANSPARENT)
 423     {
 424         *hittest = res;  /* Found the window */
 425         TRACE( "returning %p\n", hwndScope );
 426         return hwndScope;
 427     }
 428     *hittest = HTNOWHERE;
 429     TRACE( "nothing found\n" );
 430     return 0;
 431 }
 432
 433
 434 /*******************************************************************
 435  *              WindowFromPoint (USER32.@)
 436  */
 437 HWND WINAPI WindowFromPoint( POINT pt )
 438 {
 439     INT hittest;
 440     return WINPOS_WindowFromPoint( 0, pt, &hittest );
 441 }
 442
 443
 444 /*******************************************************************
 445  *              ChildWindowFromPoint (USER32.@)
 446  */
 447 HWND WINAPI ChildWindowFromPoint( HWND hwndParent, POINT pt )
 448 {
 449     return ChildWindowFromPointEx( hwndParent, pt, CWP_ALL );
 450 }
 451
 452 /*******************************************************************
 453  *              ChildWindowFromPointEx (USER32.@)
 454  */
 455 HWND WINAPI ChildWindowFromPointEx( HWND hwndParent, POINT pt, UINT uFlags)
 456 {
 457     /* pt is in the client coordinates */
 458     HWND *list;
 459     int i;
 460     RECT rect;
 461     HWND retvalue;
 462
 463     GetClientRect( hwndParent, &rect );
 464     if (!PtInRect( &rect, pt )) return 0;
 465     if (!(list = WIN_ListChildren( hwndParent ))) return 0;
 466
 467     for (i = 0; list[i]; i++)
 468     {
 469         if (!WIN_GetRectangles( list[i], &rect, NULL )) continue;
 470         if (!PtInRect( &rect, pt )) continue;
 471         if (uFlags & (CWP_SKIPINVISIBLE|CWP_SKIPDISABLED))
 472         {
 473             LONG style = GetWindowLongW( list[i], GWL_STYLE );
 474             if ((uFlags & CWP_SKIPINVISIBLE) && !(style & WS_VISIBLE)) continue;
 475             if ((uFlags & CWP_SKIPDISABLED) && (style & WS_DISABLED)) continue;
 476         }
 477         if (uFlags & CWP_SKIPTRANSPARENT)
 478         {
 479             if (GetWindowLongW( list[i], GWL_EXSTYLE ) & WS_EX_TRANSPARENT) continue;
 480         }
 481         break;
 482     }
 483     retvalue = list[i];
 484     HeapFree( GetProcessHeap(), 0, list );
 485     if (!retvalue) retvalue = hwndParent;
 486     return retvalue;
 487 }
 488
 489
 490 /*******************************************************************
 491  *         WINPOS_GetWinOffset
 492  *
 493  * Calculate the offset between the origin of the two windows. Used
 494  * to implement MapWindowPoints.
 495  */
 496 static void WINPOS_GetWinOffset( HWND hwndFrom, HWND hwndTo, POINT *offset )
 497 {
 498     WND * wndPtr;
 499
 500     offset->x = offset->y = 0;
 501
 502     /* Translate source window origin to screen coords */
 503     if (hwndFrom)
 504     {
 505         HWND hwnd = hwndFrom;
 506
 507         while (hwnd)
 508         {
 509             if (hwnd == hwndTo) return;
 510             if (!(wndPtr = WIN_GetPtr( hwnd )))
 511             {
 512                 ERR( "bad hwndFrom = %p\n", hwnd );
 513                 return;
 514             }
 515             if (wndPtr == WND_OTHER_PROCESS) goto other_process;
 516             offset->x += wndPtr->rectClient.left;
 517             offset->y += wndPtr->rectClient.top;
 518             hwnd = wndPtr->parent;
 519             WIN_ReleasePtr( wndPtr );
 520         }
 521     }
 522
 523     /* Translate origin to destination window coords */
 524     if (hwndTo)
 525     {
 526         HWND hwnd = hwndTo;
 527
 528         while (hwnd)
 529         {
 530             if (!(wndPtr = WIN_GetPtr( hwnd )))
 531             {
 532                 ERR( "bad hwndTo = %p\n", hwnd );
 533                 return;
 534             }
 535             if (wndPtr == WND_OTHER_PROCESS) goto other_process;
 536             offset->x -= wndPtr->rectClient.left;
 537             offset->y -= wndPtr->rectClient.top;
 538             hwnd = wndPtr->parent;
 539             WIN_ReleasePtr( wndPtr );
 540         }
 541     }
 542     return;
 543
 544  other_process:  /* one of the parents may belong to another process, do it the hard way */
 545     offset->x = offset->y = 0;
 546     SERVER_START_REQ( get_windows_offset )
 547     {
 548         req->from = hwndFrom;
 549         req->to   = hwndTo;
 550         if (!wine_server_call( req ))
 551         {
 552             offset->x = reply->x;
 553             offset->y = reply->y;
 554         }
 555     }
 556     SERVER_END_REQ;
 557 }
 558
 559
 560 /*******************************************************************
 561  *              MapWindowPoints (USER.258)
 562  */
 563 void WINAPI MapWindowPoints16( HWND16 hwndFrom, HWND16 hwndTo,
 564                                LPPOINT16 lppt, UINT16 count )
 565 {
 566     POINT offset;
 567
 568     WINPOS_GetWinOffset( WIN_Handle32(hwndFrom), WIN_Handle32(hwndTo), &offset );
 569     while (count--)
 570     {
 571         lppt->x += offset.x;
 572         lppt->y += offset.y;
 573         lppt++;
 574     }
 575 }
 576
 577
 578 /*******************************************************************
 579  *              MapWindowPoints (USER32.@)
 580  */
 581 INT WINAPI MapWindowPoints( HWND hwndFrom, HWND hwndTo, LPPOINT lppt, UINT count )
 582 {
 583     POINT offset;
 584
 585     WINPOS_GetWinOffset( hwndFrom, hwndTo, &offset );
 586     while (count--)
 587     {
 588         lppt->x += offset.x;
 589         lppt->y += offset.y;
 590         lppt++;
 591     }
 592     return MAKELONG( LOWORD(offset.x), LOWORD(offset.y) );
 593 }
 594
 595
 596 /***********************************************************************
 597  *              IsIconic (USER32.@)
 598  */
 599 BOOL WINAPI IsIconic(HWND hWnd)
 600 {
 601     return (GetWindowLongW( hWnd, GWL_STYLE ) & WS_MINIMIZE) != 0;
 602 }
 603
 604
 605 /***********************************************************************
 606  *              IsZoomed (USER32.@)
 607  */
 608 BOOL WINAPI IsZoomed(HWND hWnd)
 609 {
 610     return (GetWindowLongW( hWnd, GWL_STYLE ) & WS_MAXIMIZE) != 0;
 611 }
 612
 613
 614 /*******************************************************************
 615  *              AllowSetForegroundWindow (USER32.@)
 616  */
 617 BOOL WINAPI AllowSetForegroundWindow( DWORD procid )
 618 {
 619     /* FIXME: If Win98/2000 style SetForegroundWindow behavior is
 620      * implemented, then fix this function. */
 621     return TRUE;
 622 }
 623
 624
 625 /*******************************************************************
 626  *              LockSetForegroundWindow (USER32.@)
 627  */
 628 BOOL WINAPI LockSetForegroundWindow( UINT lockcode )
 629 {
 630     /* FIXME: If Win98/2000 style SetForegroundWindow behavior is
 631      * implemented, then fix this function. */
 632     return TRUE;
 633 }
 634
 635
 636 /*******************************************************************
 637  *              SetShellWindow (USER32.@)
 638  */
 639 HWND WINAPI SetShellWindow(HWND hwndshell)
 640 {   WARN("(hWnd=%p) semi stub\n",hwndshell );
 641
 642     hGlobalShellWindow = WIN_GetFullHandle( hwndshell );
 643     return hGlobalShellWindow;
 644 }
 645
 646
 647 /*******************************************************************
 648  *              GetShellWindow (USER32.@)
 649  */
 650 HWND WINAPI GetShellWindow(void)
 651 {   WARN("(hWnd=%p) semi stub\n",hGlobalShellWindow );
 652
 653     return hGlobalShellWindow;
 654 }
 655
 656
 657 /***********************************************************************
 658  *              BringWindowToTop (USER32.@)
 659  */
 660 BOOL WINAPI BringWindowToTop( HWND hwnd )
 661 {
 662     return SetWindowPos( hwnd, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE );
 663 }
 664
 665
 666 /***********************************************************************
 667  *              MoveWindow (USER32.@)
 668  */
 669 BOOL WINAPI MoveWindow( HWND hwnd, INT x, INT y, INT cx, INT cy,
 670                             BOOL repaint )
 671 {
 672     int flags = SWP_NOZORDER | SWP_NOACTIVATE;
 673     if (!repaint) flags |= SWP_NOREDRAW;
 674     TRACE("%p %d,%d %dx%d %d\n", hwnd, x, y, cx, cy, repaint );
 675     return SetWindowPos( hwnd, 0, x, y, cx, cy, flags );
 676 }
 677
 678 /***********************************************************************
 679  *           WINPOS_InitInternalPos
 680  */
 681 static LPINTERNALPOS WINPOS_InitInternalPos( WND* wnd, POINT pt, const RECT *restoreRect )
 682 {
 683     LPINTERNALPOS lpPos = (LPINTERNALPOS) GetPropA( wnd->hwndSelf,
 684                                                       atomInternalPos );
 685     if( !lpPos )
 686     {
 687         /* this happens when the window is minimized/maximized
 688          * for the first time (rectWindow is not adjusted yet) */
 689
 690         lpPos = HeapAlloc( GetProcessHeap(), 0, sizeof(INTERNALPOS) );
 691         if( !lpPos ) return NULL;
 692
 693         SetPropA( wnd->hwndSelf, atomInternalPos, (HANDLE)lpPos );
 694         lpPos->hwndIconTitle = 0; /* defer until needs to be shown */
 695         CONV_RECT32TO16( &wnd->rectWindow, &lpPos->rectNormal );
 696         *(UINT*)&lpPos->ptIconPos = *(UINT*)&lpPos->ptMaxPos = 0xFFFFFFFF;
 697     }
 698
 699     if( wnd->dwStyle & WS_MINIMIZE )
 700         CONV_POINT32TO16( &pt, &lpPos->ptIconPos );
 701     else if( wnd->dwStyle & WS_MAXIMIZE )
 702         CONV_POINT32TO16( &pt, &lpPos->ptMaxPos );
 703     else if( restoreRect )
 704         CONV_RECT32TO16( restoreRect, &lpPos->rectNormal );
 705
 706     return lpPos;
 707 }
 708
 709 /***********************************************************************
 710  *           WINPOS_RedrawIconTitle
 711  */
 712 BOOL WINPOS_RedrawIconTitle( HWND hWnd )
 713 {
 714     LPINTERNALPOS lpPos = (LPINTERNALPOS)GetPropA( hWnd, atomInternalPos );
 715     if( lpPos )
 716     {
 717         if( lpPos->hwndIconTitle )
 718         {
 719             SendMessageA( lpPos->hwndIconTitle, WM_SHOWWINDOW, TRUE, 0);
 720             InvalidateRect( lpPos->hwndIconTitle, NULL, TRUE );
 721             return TRUE;
 722         }
 723     }
 724     return FALSE;
 725 }
 726
 727 /***********************************************************************
 728  *           WINPOS_ShowIconTitle
 729  */
 730 BOOL WINPOS_ShowIconTitle( HWND hwnd, BOOL bShow )
 731 {
 732     LPINTERNALPOS lpPos = (LPINTERNALPOS)GetPropA( hwnd, atomInternalPos );
 733
 734     if( lpPos && !(GetWindowLongA( hwnd, GWL_EXSTYLE) & WS_EX_MANAGED))
 735     {
 736         HWND title = lpPos->hwndIconTitle;
 737
 738         TRACE("%p %i\n", hwnd, (bShow != 0) );
 739
 740         if( !title )
 741             lpPos->hwndIconTitle = title = ICONTITLE_Create( hwnd );
 742         if( bShow )
 743         {
 744             if (!IsWindowVisible(title))
 745             {
 746                 SendMessageA( title, WM_SHOWWINDOW, TRUE, 0 );
 747                 SetWindowPos( title, 0, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE |
 748                               SWP_NOACTIVATE | SWP_NOZORDER | SWP_SHOWWINDOW );
 749             }
 750         }
 751         else ShowWindow( title, SW_HIDE );
 752     }
 753     return FALSE;
 754 }
 755
 756 /*******************************************************************
 757  *           WINPOS_GetMinMaxInfo
 758  *
 759  * Get the minimized and maximized information for a window.
 760  */
 761 void WINPOS_GetMinMaxInfo( HWND hwnd, POINT *maxSize, POINT *maxPos,
 762                            POINT *minTrack, POINT *maxTrack )
 763 {
 764     LPINTERNALPOS lpPos;
 765     MINMAXINFO MinMax;
 766     INT xinc, yinc;
 767     LONG style = GetWindowLongA( hwnd, GWL_STYLE );
 768     LONG exstyle = GetWindowLongA( hwnd, GWL_EXSTYLE );
 769
 770     /* Compute default values */
 771
 772     MinMax.ptMaxSize.x = GetSystemMetrics(SM_CXSCREEN);
 773     MinMax.ptMaxSize.y = GetSystemMetrics(SM_CYSCREEN);
 774     MinMax.ptMinTrackSize.x = GetSystemMetrics(SM_CXMINTRACK);
 775     MinMax.ptMinTrackSize.y = GetSystemMetrics(SM_CYMINTRACK);
 776     MinMax.ptMaxTrackSize.x = GetSystemMetrics(SM_CXSCREEN);
 777     MinMax.ptMaxTrackSize.y = GetSystemMetrics(SM_CYSCREEN);
 778
 779     if (HAS_DLGFRAME( style, exstyle ))
 780     {
 781         xinc = GetSystemMetrics(SM_CXDLGFRAME);
 782         yinc = GetSystemMetrics(SM_CYDLGFRAME);
 783     }
 784     else
 785     {
 786         xinc = yinc = 0;
 787         if (HAS_THICKFRAME(style))
 788         {
 789             xinc += GetSystemMetrics(SM_CXFRAME);
 790             yinc += GetSystemMetrics(SM_CYFRAME);
 791         }
 792         if (style & WS_BORDER)
 793         {
 794             xinc += GetSystemMetrics(SM_CXBORDER);
 795             yinc += GetSystemMetrics(SM_CYBORDER);
 796         }
 797     }
 798     MinMax.ptMaxSize.x += 2 * xinc;
 799     MinMax.ptMaxSize.y += 2 * yinc;
 800
 801     lpPos = (LPINTERNALPOS)GetPropA( hwnd, atomInternalPos );
 802     if( lpPos && !EMPTYPOINT(lpPos->ptMaxPos) )
 803         CONV_POINT16TO32( &lpPos->ptMaxPos, &MinMax.ptMaxPosition );
 804     else
 805     {
 806         MinMax.ptMaxPosition.x = -xinc;
 807         MinMax.ptMaxPosition.y = -yinc;
 808     }
 809
 810     SendMessageA( hwnd, WM_GETMINMAXINFO, 0, (LPARAM)&MinMax );
 811
 812       /* Some sanity checks */
 813
 814     TRACE("%ld %ld / %ld %ld / %ld %ld / %ld %ld\n",
 815                       MinMax.ptMaxSize.x, MinMax.ptMaxSize.y,
 816                       MinMax.ptMaxPosition.x, MinMax.ptMaxPosition.y,
 817                       MinMax.ptMaxTrackSize.x, MinMax.ptMaxTrackSize.y,
 818                       MinMax.ptMinTrackSize.x, MinMax.ptMinTrackSize.y);
 819     MinMax.ptMaxTrackSize.x = max( MinMax.ptMaxTrackSize.x,
 820                                    MinMax.ptMinTrackSize.x );
 821     MinMax.ptMaxTrackSize.y = max( MinMax.ptMaxTrackSize.y,
 822                                    MinMax.ptMinTrackSize.y );
 823
 824     if (maxSize) *maxSize = MinMax.ptMaxSize;
 825     if (maxPos) *maxPos = MinMax.ptMaxPosition;
 826     if (minTrack) *minTrack = MinMax.ptMinTrackSize;
 827     if (maxTrack) *maxTrack = MinMax.ptMaxTrackSize;
 828 }
 829
 830 /***********************************************************************
 831  *              ShowWindowAsync (USER32.@)
 832  *
 833  * doesn't wait; returns immediately.
 834  * used by threads to toggle windows in other (possibly hanging) threads
 835  */
 836 BOOL WINAPI ShowWindowAsync( HWND hwnd, INT cmd )
 837 {
 838     HWND full_handle;
 839
 840     if ((full_handle = WIN_IsCurrentThread( hwnd )))
 841         return USER_Driver.pShowWindow( full_handle, cmd );
 842     return SendNotifyMessageW( hwnd, WM_WINE_SHOWWINDOW, cmd, 0 );
 843 }
 844
 845
 846 /***********************************************************************
 847  *              ShowWindow (USER32.@)
 848  */
 849 BOOL WINAPI ShowWindow( HWND hwnd, INT cmd )
 850 {
 851     HWND full_handle;
 852
 853     if ((full_handle = WIN_IsCurrentThread( hwnd )))
 854         return USER_Driver.pShowWindow( full_handle, cmd );
 855     return SendMessageW( hwnd, WM_WINE_SHOWWINDOW, cmd, 0 );
 856 }
 857
 858
 859 /***********************************************************************
 860  *              GetInternalWindowPos (USER32.@)
 861  */
 862 UINT WINAPI GetInternalWindowPos( HWND hwnd, LPRECT rectWnd,
 863                                       LPPOINT ptIcon )
 864 {
 865     WINDOWPLACEMENT wndpl;
 866     if (GetWindowPlacement( hwnd, &wndpl ))
 867     {
 868         if (rectWnd) *rectWnd = wndpl.rcNormalPosition;
 869         if (ptIcon)  *ptIcon = wndpl.ptMinPosition;
 870         return wndpl.showCmd;
 871     }
 872     return 0;
 873 }
 874
 875
 876 /***********************************************************************
 877  *              GetWindowPlacement (USER32.@)
 878  *
 879  * Win95:
 880  * Fails if wndpl->length of Win95 (!) apps is invalid.
 881  */
 882 BOOL WINAPI GetWindowPlacement( HWND hwnd, WINDOWPLACEMENT *wndpl )
 883 {
 884     WND *pWnd = WIN_FindWndPtr( hwnd );
 885     LPINTERNALPOS lpPos;
 886
 887     if(!pWnd ) return FALSE;
 888
 889     lpPos = WINPOS_InitInternalPos( pWnd, *(LPPOINT)&pWnd->rectWindow.left, &pWnd->rectWindow );
 890     wndpl->length  = sizeof(*wndpl);
 891     if( pWnd->dwStyle & WS_MINIMIZE )
 892         wndpl->showCmd = SW_SHOWMINIMIZED;
 893     else
 894         wndpl->showCmd = ( pWnd->dwStyle & WS_MAXIMIZE ) ? SW_SHOWMAXIMIZED : SW_SHOWNORMAL ;
 895     if( pWnd->flags & WIN_RESTORE_MAX )
 896         wndpl->flags = WPF_RESTORETOMAXIMIZED;
 897     else
 898         wndpl->flags = 0;
 899     CONV_POINT16TO32( &lpPos->ptIconPos, &wndpl->ptMinPosition );
 900     CONV_POINT16TO32( &lpPos->ptMaxPos, &wndpl->ptMaxPosition );
 901     CONV_RECT16TO32( &lpPos->rectNormal, &wndpl->rcNormalPosition );
 902     WIN_ReleaseWndPtr(pWnd);
 903     return TRUE;
 904 }
 905
 906
 907 /***********************************************************************
 908  *           WINPOS_SetPlacement
 909  */
 910 static BOOL WINPOS_SetPlacement( HWND hwnd, const WINDOWPLACEMENT *wndpl, UINT flags )
 911 {
 912     WND *pWnd = WIN_FindWndPtr( hwnd );
 913     if( pWnd )
 914     {
 915         LPINTERNALPOS lpPos = (LPINTERNALPOS)WINPOS_InitInternalPos( pWnd,
 916                              *(LPPOINT)&pWnd->rectWindow.left, &pWnd->rectWindow );
 917
 918         if( flags & PLACE_MIN ) CONV_POINT32TO16( &wndpl->ptMinPosition, &lpPos->ptIconPos );
 919         if( flags & PLACE_MAX ) CONV_POINT32TO16( &wndpl->ptMaxPosition, &lpPos->ptMaxPos );
 920         if( flags & PLACE_RECT) CONV_RECT32TO16( &wndpl->rcNormalPosition, &lpPos->rectNormal );
 921
 922         if( pWnd->dwStyle & WS_MINIMIZE )
 923         {
 924             WINPOS_ShowIconTitle( pWnd->hwndSelf, FALSE );
 925             if( wndpl->flags & WPF_SETMINPOSITION && !EMPTYPOINT(lpPos->ptIconPos))
 926                 SetWindowPos( hwnd, 0, lpPos->ptIconPos.x, lpPos->ptIconPos.y,
 927                                 0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 928         }
 929         else if( pWnd->dwStyle & WS_MAXIMIZE )
 930         {
 931             if( !EMPTYPOINT(lpPos->ptMaxPos) )
 932                 SetWindowPos( hwnd, 0, lpPos->ptMaxPos.x, lpPos->ptMaxPos.y,
 933                                 0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 934         }
 935         else if( flags & PLACE_RECT )
 936                 SetWindowPos( hwnd, 0, lpPos->rectNormal.left, lpPos->rectNormal.top,
 937                                 lpPos->rectNormal.right - lpPos->rectNormal.left,
 938                                 lpPos->rectNormal.bottom - lpPos->rectNormal.top,
 939                                 SWP_NOZORDER | SWP_NOACTIVATE );
 940
 941         ShowWindow( hwnd, wndpl->showCmd );
 942         if( IsWindow(hwnd) && pWnd->dwStyle & WS_MINIMIZE )
 943         {
 944             if( pWnd->dwStyle & WS_VISIBLE ) WINPOS_ShowIconTitle( pWnd->hwndSelf, TRUE );
 945
 946             /* SDK: ...valid only the next time... */
 947             if( wndpl->flags & WPF_RESTORETOMAXIMIZED ) pWnd->flags |= WIN_RESTORE_MAX;
 948         }
 949         WIN_ReleaseWndPtr(pWnd);
 950         return TRUE;
 951     }
 952     return FALSE;
 953 }
 954
 955
 956 /***********************************************************************
 957  *              SetWindowPlacement (USER32.@)
 958  *
 959  * Win95:
 960  * Fails if wndpl->length of Win95 (!) apps is invalid.
 961  */
 962 BOOL WINAPI SetWindowPlacement( HWND hwnd, const WINDOWPLACEMENT *wpl )
 963 {
 964     if (!wpl) return FALSE;
 965     return WINPOS_SetPlacement( hwnd, wpl, PLACE_MIN | PLACE_MAX | PLACE_RECT );
 966 }
 967
 968
 969 /***********************************************************************
 970  *              AnimateWindow (USER32.@)
 971  *              Shows/Hides a window with an animation
 972  *              NO ANIMATION YET
 973  */
 974 BOOL WINAPI AnimateWindow(HWND hwnd, DWORD dwTime, DWORD dwFlags)
 975 {
 976         FIXME("partial stub\n");
 977
 978         /* If trying to show/hide and it's already   *
 979          * shown/hidden or invalid window, fail with *
 980          * invalid parameter                         */
 981         if(!IsWindow(hwnd) ||
 982            (IsWindowVisible(hwnd) && !(dwFlags & AW_HIDE)) ||
 983            (!IsWindowVisible(hwnd) && (dwFlags & AW_HIDE)))
 984         {
 985                 SetLastError(ERROR_INVALID_PARAMETER);
 986                 return FALSE;
 987         }
 988
 989         ShowWindow(hwnd, (dwFlags & AW_HIDE) ? SW_HIDE : ((dwFlags & AW_ACTIVATE) ? SW_SHOW : SW_SHOWNA));
 990
 991         return TRUE;
 992 }
 993
 994 /***********************************************************************
 995  *              SetInternalWindowPos (USER32.@)
 996  */
 997 void WINAPI SetInternalWindowPos( HWND hwnd, UINT showCmd,
 998                                     LPRECT rect, LPPOINT pt )
 999 {
1000     if( IsWindow(hwnd) )
1001     {
1002         WINDOWPLACEMENT wndpl;
1003         UINT flags;
1004
1005         wndpl.length  = sizeof(wndpl);
1006         wndpl.showCmd = showCmd;
1007         wndpl.flags = flags = 0;
1008
1009         if( pt )
1010         {
1011             flags |= PLACE_MIN;
1012             wndpl.flags |= WPF_SETMINPOSITION;
1013             wndpl.ptMinPosition = *pt;
1014         }
1015         if( rect )
1016         {
1017             flags |= PLACE_RECT;
1018             wndpl.rcNormalPosition = *rect;
1019         }
1020         WINPOS_SetPlacement( hwnd, &wndpl, flags );
1021     }
1022 }
1023
1024
1025 /*******************************************************************
1026  *         can_activate_window
1027  *
1028  * Check if we can activate the specified window.
1029  */
1030 static BOOL can_activate_window( HWND hwnd )
1031 {
1032     LONG style;
1033
1034     if (!hwnd) return FALSE;
1035     style = GetWindowLongW( hwnd, GWL_STYLE );
1036     if (!(style & WS_VISIBLE)) return FALSE;
1037     if ((style & (WS_POPUP|WS_CHILD)) == WS_CHILD) return FALSE;
1038     return !(style & WS_DISABLED);
1039 }
1040
1041
1042 /*******************************************************************
1043  *         WINPOS_ActivateOtherWindow
1044  *
1045  *  Activates window other than pWnd.
1046  */
1047 void WINPOS_ActivateOtherWindow(HWND hwnd)
1048 {
1049     HWND hwndTo, fg;
1050
1051     if ((GetWindowLongW( hwnd, GWL_STYLE ) & WS_POPUP) && (hwndTo = GetWindow( hwnd, GW_OWNER )))
1052     {
1053         hwndTo = GetAncestor( hwndTo, GA_ROOT );
1054         if (can_activate_window( hwndTo )) goto done;
1055     }
1056
1057     hwndTo = hwnd;
1058     for (;;)
1059     {
1060         if (!(hwndTo = GetWindow( hwndTo, GW_HWNDNEXT ))) break;
1061         if (can_activate_window( hwndTo )) break;
1062     }
1063
1064  done:
1065     fg = GetForegroundWindow();
1066     TRACE("win = %p fg = %p\n", hwndTo, fg);
1067     if (!fg || (hwnd == fg))
1068     {
1069         if (SetForegroundWindow( hwndTo )) return;
1070     }
1071     if (!SetActiveWindow( hwndTo )) SetActiveWindow(0);
1072 }
1073
1074
1075 /***********************************************************************
1076  *           WINPOS_HandleWindowPosChanging16
1077  *
1078  * Default handling for a WM_WINDOWPOSCHANGING. Called from DefWindowProc().
1079  */
1080 LONG WINPOS_HandleWindowPosChanging16( HWND hwnd, WINDOWPOS16 *winpos )
1081 {
1082     POINT maxSize, minTrack;
1083     LONG style = GetWindowLongA( hwnd, GWL_STYLE );
1084
1085     if (winpos->flags & SWP_NOSIZE) return 0;
1086     if ((style & WS_THICKFRAME) || ((style & (WS_POPUP | WS_CHILD)) == 0))
1087     {
1088         WINPOS_GetMinMaxInfo( hwnd, &maxSize, NULL, &minTrack, NULL );
1089         if (maxSize.x < winpos->cx) winpos->cx = maxSize.x;
1090         if (maxSize.y < winpos->cy) winpos->cy = maxSize.y;
1091         if (!(style & WS_MINIMIZE))
1092         {
1093             if (winpos->cx < minTrack.x ) winpos->cx = minTrack.x;
1094             if (winpos->cy < minTrack.y ) winpos->cy = minTrack.y;
1095         }
1096     }
1097     return 0;
1098 }
1099
1100
1101 /***********************************************************************
1102  *           WINPOS_HandleWindowPosChanging
1103  *
1104  * Default handling for a WM_WINDOWPOSCHANGING. Called from DefWindowProc().
1105  */
1106 LONG WINPOS_HandleWindowPosChanging( HWND hwnd, WINDOWPOS *winpos )
1107 {
1108     POINT maxSize, minTrack;
1109     LONG style = GetWindowLongA( hwnd, GWL_STYLE );
1110
1111     if (winpos->flags & SWP_NOSIZE) return 0;
1112     if ((style & WS_THICKFRAME) || ((style & (WS_POPUP | WS_CHILD)) == 0))
1113     {
1114         WINPOS_GetMinMaxInfo( hwnd, &maxSize, NULL, &minTrack, NULL );
1115         winpos->cx = min( winpos->cx, maxSize.x );
1116         winpos->cy = min( winpos->cy, maxSize.y );
1117         if (!(style & WS_MINIMIZE))
1118         {
1119             if (winpos->cx < minTrack.x ) winpos->cx = minTrack.x;
1120             if (winpos->cy < minTrack.y ) winpos->cy = minTrack.y;
1121         }
1122     }
1123     return 0;
1124 }
1125
1126
1127 /***********************************************************************
1128  *           dump_winpos_flags
1129  */
1130 static void dump_winpos_flags(UINT flags)
1131 {
1132     TRACE("flags:");
1133     if(flags & SWP_NOSIZE) DPRINTF(" SWP_NOSIZE");
1134     if(flags & SWP_NOMOVE) DPRINTF(" SWP_NOMOVE");
1135     if(flags & SWP_NOZORDER) DPRINTF(" SWP_NOZORDER");
1136     if(flags & SWP_NOREDRAW) DPRINTF(" SWP_NOREDRAW");
1137     if(flags & SWP_NOACTIVATE) DPRINTF(" SWP_NOACTIVATE");
1138     if(flags & SWP_FRAMECHANGED) DPRINTF(" SWP_FRAMECHANGED");
1139     if(flags & SWP_SHOWWINDOW) DPRINTF(" SWP_SHOWWINDOW");
1140     if(flags & SWP_HIDEWINDOW) DPRINTF(" SWP_HIDEWINDOW");
1141     if(flags & SWP_NOCOPYBITS) DPRINTF(" SWP_NOCOPYBITS");
1142     if(flags & SWP_NOOWNERZORDER) DPRINTF(" SWP_NOOWNERZORDER");
1143     if(flags & SWP_NOSENDCHANGING) DPRINTF(" SWP_NOSENDCHANGING");
1144     if(flags & SWP_DEFERERASE) DPRINTF(" SWP_DEFERERASE");
1145     if(flags & SWP_ASYNCWINDOWPOS) DPRINTF(" SWP_ASYNCWINDOWPOS");
1146
1147 #define DUMPED_FLAGS \
1148     (SWP_NOSIZE | \
1149     SWP_NOMOVE | \
1150     SWP_NOZORDER | \
1151     SWP_NOREDRAW | \
1152     SWP_NOACTIVATE | \
1153     SWP_FRAMECHANGED | \
1154     SWP_SHOWWINDOW | \
1155     SWP_HIDEWINDOW | \
1156     SWP_NOCOPYBITS | \
1157     SWP_NOOWNERZORDER | \
1158     SWP_NOSENDCHANGING | \
1159     SWP_DEFERERASE | \
1160     SWP_ASYNCWINDOWPOS)
1161
1162     if(flags & ~DUMPED_FLAGS) DPRINTF(" %08x", flags & ~DUMPED_FLAGS);
1163     DPRINTF("\n");
1164 #undef DUMPED_FLAGS
1165 }
1166
1167 /***********************************************************************
1168  *              SetWindowPos (USER32.@)
1169  */
1170 BOOL WINAPI SetWindowPos( HWND hwnd, HWND hwndInsertAfter,
1171                           INT x, INT y, INT cx, INT cy, UINT flags )
1172 {
1173     WINDOWPOS winpos;
1174
1175     TRACE("hwnd %p, after %p, %d,%d (%dx%d), flags %08x\n",
1176           hwnd, hwndInsertAfter, x, y, cx, cy, flags);
1177     if(TRACE_ON(win)) dump_winpos_flags(flags);
1178
1179     winpos.hwnd = WIN_GetFullHandle(hwnd);
1180     winpos.hwndInsertAfter = WIN_GetFullHandle(hwndInsertAfter);
1181     winpos.x = x;
1182     winpos.y = y;
1183     winpos.cx = cx;
1184     winpos.cy = cy;
1185     winpos.flags = flags;
1186     if (WIN_IsCurrentThread( hwnd )) return USER_Driver.pSetWindowPos( &winpos );
1187     return SendMessageW( winpos.hwnd, WM_WINE_SETWINDOWPOS, 0, (LPARAM)&winpos );
1188 }
1189
1190
1191 /***********************************************************************
1192  *              BeginDeferWindowPos (USER32.@)
1193  */
1194 HDWP WINAPI BeginDeferWindowPos( INT count )
1195 {
1196     HDWP handle;
1197     DWP *pDWP;
1198
1199     if (count < 0)
1200     {
1201         SetLastError(ERROR_INVALID_PARAMETER);
1202         return 0;
1203     }
1204     /* Windows allows zero count, in which case it allocates context for 8 moves */
1205     if (count == 0) count = 8;
1206
1207     handle = USER_HEAP_ALLOC( sizeof(DWP) + (count-1)*sizeof(WINDOWPOS) );
1208     if (!handle) return 0;
1209     pDWP = (DWP *) USER_HEAP_LIN_ADDR( handle );
1210     pDWP->actualCount    = 0;
1211     pDWP->suggestedCount = count;
1212     pDWP->valid          = TRUE;
1213     pDWP->wMagic         = DWP_MAGIC;
1214     pDWP->hwndParent     = 0;
1215     return handle;
1216 }
1217
1218
1219 /***********************************************************************
1220  *              DeferWindowPos (USER32.@)
1221  */
1222 HDWP WINAPI DeferWindowPos( HDWP hdwp, HWND hwnd, HWND hwndAfter,
1223                                 INT x, INT y, INT cx, INT cy,
1224                                 UINT flags )
1225 {
1226     DWP *pDWP;
1227     int i;
1228     HDWP newhdwp = hdwp,retvalue;
1229
1230     hwnd = WIN_GetFullHandle( hwnd );
1231     if (hwnd == GetDesktopWindow()) return 0;
1232
1233     if (!(pDWP = USER_HEAP_LIN_ADDR( hdwp ))) return 0;
1234
1235     USER_Lock();
1236
1237     for (i = 0; i < pDWP->actualCount; i++)
1238     {
1239         if (pDWP->winPos[i].hwnd == hwnd)
1240         {
1241               /* Merge with the other changes */
1242             if (!(flags & SWP_NOZORDER))
1243             {
1244                 pDWP->winPos[i].hwndInsertAfter = WIN_GetFullHandle(hwndAfter);
1245             }
1246             if (!(flags & SWP_NOMOVE))
1247             {
1248                 pDWP->winPos[i].x = x;
1249                 pDWP->winPos[i].y = y;
1250             }
1251             if (!(flags & SWP_NOSIZE))
1252             {
1253                 pDWP->winPos[i].cx = cx;
1254                 pDWP->winPos[i].cy = cy;
1255             }
1256             pDWP->winPos[i].flags &= flags | ~(SWP_NOSIZE | SWP_NOMOVE |
1257                                                SWP_NOZORDER | SWP_NOREDRAW |
1258                                                SWP_NOACTIVATE | SWP_NOCOPYBITS|
1259                                                SWP_NOOWNERZORDER);
1260             pDWP->winPos[i].flags |= flags & (SWP_SHOWWINDOW | SWP_HIDEWINDOW |
1261                                               SWP_FRAMECHANGED);
1262             retvalue = hdwp;
1263             goto END;
1264         }
1265     }
1266     if (pDWP->actualCount >= pDWP->suggestedCount)
1267     {
1268         newhdwp = USER_HEAP_REALLOC( hdwp,
1269                       sizeof(DWP) + pDWP->suggestedCount*sizeof(WINDOWPOS) );
1270         if (!newhdwp)
1271         {
1272             retvalue = 0;
1273             goto END;
1274         }
1275         pDWP = (DWP *) USER_HEAP_LIN_ADDR( newhdwp );
1276         pDWP->suggestedCount++;
1277     }
1278     pDWP->winPos[pDWP->actualCount].hwnd = hwnd;
1279     pDWP->winPos[pDWP->actualCount].hwndInsertAfter = hwndAfter;
1280     pDWP->winPos[pDWP->actualCount].x = x;
1281     pDWP->winPos[pDWP->actualCount].y = y;
1282     pDWP->winPos[pDWP->actualCount].cx = cx;
1283     pDWP->winPos[pDWP->actualCount].cy = cy;
1284     pDWP->winPos[pDWP->actualCount].flags = flags;
1285     pDWP->actualCount++;
1286     retvalue = newhdwp;
1287 END:
1288     USER_Unlock();
1289     return retvalue;
1290 }
1291
1292
1293 /***********************************************************************
1294  *              EndDeferWindowPos (USER32.@)
1295  */
1296 BOOL WINAPI EndDeferWindowPos( HDWP hdwp )
1297 {
1298     DWP *pDWP;
1299     WINDOWPOS *winpos;
1300     BOOL res = TRUE;
1301     int i;
1302
1303     pDWP = (DWP *) USER_HEAP_LIN_ADDR( hdwp );
1304     if (!pDWP) return FALSE;
1305     for (i = 0, winpos = pDWP->winPos; i < pDWP->actualCount; i++, winpos++)
1306     {
1307         if (!(res = USER_Driver.pSetWindowPos( winpos ))) break;
1308     }
1309     USER_HEAP_FREE( hdwp );
1310     return res;
1311 }
1312
1313
1314 /***********************************************************************
1315  *              TileChildWindows (USER.199)
1316  */
1317 void WINAPI TileChildWindows16( HWND16 parent, WORD action )
1318 {
1319     FIXME("(%04x, %d): stub\n", parent, action);
1320 }
1321
1322 /***********************************************************************
1323  *              CascadeChildWindows (USER.198)
1324  */
1325 void WINAPI CascadeChildWindows16( HWND16 parent, WORD action )
1326 {
1327     FIXME("(%04x, %d): stub\n", parent, action);
1328 }
1329
1330 /***********************************************************************
1331  *              SetProgmanWindow (USER32.@)
1332  */
1333 HWND WINAPI SetProgmanWindow ( HWND hwnd )
1334 {
1335         hGlobalProgmanWindow = hwnd;
1336         return hGlobalProgmanWindow;
1337 }
1338
1339 /***********************************************************************
1340  *              GetProgmanWindow (USER32.@)
1341  */
1342 HWND WINAPI GetProgmanWindow(void)
1343 {
1344         return hGlobalProgmanWindow;
1345 }
1346
1347 /***********************************************************************
1348  *              SetShellWindowEx (USER32.@)
1349  * hwndProgman =  Progman[Program Manager]
1350  *                |-> SHELLDLL_DefView
1351  * hwndListView = |   |-> SysListView32
1352  *                |   |   |-> tooltips_class32
1353  *                |   |
1354  *                |   |-> SysHeader32
1355  *                |
1356  *                |-> ProxyTarget
1357  */
1358 HWND WINAPI SetShellWindowEx ( HWND hwndProgman, HWND hwndListView )
1359 {
1360         FIXME("%p %p stub\n",hwndProgman ,hwndListView );
1361         hGlobalShellWindow = hwndProgman;
1362         return hGlobalShellWindow;
1363
1364 }
1365
1366 /***********************************************************************
1367  *              SetTaskmanWindow (USER32.@)
1368  * NOTES
1369  *   hwnd = MSTaskSwWClass
1370  *          |-> SysTabControl32
1371  */
1372 HWND WINAPI SetTaskmanWindow ( HWND hwnd )
1373 {
1374         hGlobalTaskmanWindow = hwnd;
1375         return hGlobalTaskmanWindow;
1376 }
1377
1378 /***********************************************************************
1379  *              GetTaskmanWindow (USER32.@)
1380  */
1381 HWND WINAPI GetTaskmanWindow(void)
1382 {
1383         return hGlobalTaskmanWindow;
1384 }