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