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 "region.h"
  32 #include "win.h"
  33 #include "hook.h"
  34 #include "message.h"
  35 #include "queue.h"
  36 #include "winpos.h"
  37 #include "dce.h"
  38 #include "nonclient.h"
  39 #include "wine/debug.h"
  40 #include "input.h"
  41
  42 WINE_DEFAULT_DEBUG_CHANNEL(win);
  43
  44 #define HAS_DLGFRAME(style,exStyle) \
  45     (((exStyle) & WS_EX_DLGMODALFRAME) || \
  46      (((style) & WS_DLGFRAME) && !((style) & WS_BORDER)))
  47
  48 #define HAS_THICKFRAME(style) \
  49     (((style) & WS_THICKFRAME) && \
  50      !(((style) & (WS_DLGFRAME|WS_BORDER)) == WS_DLGFRAME))
  51
  52 #define EMPTYPOINT(pt)          ((*(LONG*)&(pt)) == -1)
  53
  54 #define PLACE_MIN               0x0001
  55 #define PLACE_MAX               0x0002
  56 #define PLACE_RECT              0x0004
  57
  58
  59 #define DWP_MAGIC  ((INT)('W' | ('P' << 8) | ('O' << 16) | ('S' << 24)))
  60
  61 typedef struct
  62 {
  63     INT       actualCount;
  64     INT       suggestedCount;
  65     BOOL      valid;
  66     INT       wMagic;
  67     HWND      hwndParent;
  68     WINDOWPOS winPos[1];
  69 } DWP;
  70
  71 /* ----- internal variables ----- */
  72
  73 static HWND hwndPrevActive  = 0;  /* Previously active window */
  74 static HWND hGlobalShellWindow=0; /*the shell*/
  75 static HWND hGlobalTaskmanWindow=0;
  76 static HWND hGlobalProgmanWindow=0;
  77
  78 static LPCSTR atomInternalPos;
  79
  80 extern HQUEUE16 hActiveQueue;
  81
  82 /***********************************************************************
  83  *           WINPOS_CreateInternalPosAtom
  84  */
  85 BOOL WINPOS_CreateInternalPosAtom()
  86 {
  87     LPSTR str = "SysIP";
  88     atomInternalPos = (LPCSTR)(DWORD)GlobalAddAtomA(str);
  89     return (atomInternalPos) ? TRUE : FALSE;
  90 }
  91
  92 /***********************************************************************
  93  *           WINPOS_CheckInternalPos
  94  *
  95  * Called when a window is destroyed.
  96  */
  97 void WINPOS_CheckInternalPos( HWND hwnd )
  98 {
  99     LPINTERNALPOS lpPos;
 100     MESSAGEQUEUE *pMsgQ = 0;
 101     WND *wndPtr = WIN_GetPtr( hwnd );
 102
 103     if (!wndPtr || wndPtr == WND_OTHER_PROCESS) return;
 104
 105     lpPos = (LPINTERNALPOS) GetPropA( hwnd, atomInternalPos );
 106
 107     /* Retrieve the message queue associated with this window */
 108     pMsgQ = (MESSAGEQUEUE *)QUEUE_Lock( wndPtr->hmemTaskQ );
 109     if ( !pMsgQ )
 110     {
 111         WARN("\tMessage queue not found. Exiting!\n" );
 112         WIN_ReleasePtr( wndPtr );
 113         return;
 114     }
 115
 116     if( hwnd == hwndPrevActive ) hwndPrevActive = 0;
 117
 118     if( hwnd == PERQDATA_GetActiveWnd( pMsgQ->pQData ) )
 119     {
 120         PERQDATA_SetActiveWnd( pMsgQ->pQData, 0 );
 121         WARN("\tattempt to activate destroyed window!\n");
 122     }
 123
 124     if( lpPos )
 125     {
 126         if( IsWindow(lpPos->hwndIconTitle) )
 127             DestroyWindow( lpPos->hwndIconTitle );
 128         HeapFree( GetProcessHeap(), 0, lpPos );
 129     }
 130
 131     QUEUE_Unlock( pMsgQ );
 132     WIN_ReleasePtr( wndPtr );
 133 }
 134
 135 /***********************************************************************
 136  *              ArrangeIconicWindows (USER32.@)
 137  */
 138 UINT WINAPI ArrangeIconicWindows( HWND parent )
 139 {
 140     RECT rectParent;
 141     HWND hwndChild;
 142     INT x, y, xspacing, yspacing;
 143
 144     GetClientRect( parent, &rectParent );
 145     x = rectParent.left;
 146     y = rectParent.bottom;
 147     xspacing = GetSystemMetrics(SM_CXICONSPACING);
 148     yspacing = GetSystemMetrics(SM_CYICONSPACING);
 149
 150     hwndChild = GetWindow( parent, GW_CHILD );
 151     while (hwndChild)
 152     {
 153         if( IsIconic( hwndChild ) )
 154         {
 155             WINPOS_ShowIconTitle( hwndChild, FALSE );
 156
 157             SetWindowPos( hwndChild, 0, x + (xspacing - GetSystemMetrics(SM_CXICON)) / 2,
 158                             y - yspacing - GetSystemMetrics(SM_CYICON)/2, 0, 0,
 159                             SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 160             if( IsWindow(hwndChild) )
 161                 WINPOS_ShowIconTitle(hwndChild , TRUE );
 162
 163             if (x <= rectParent.right - xspacing) x += xspacing;
 164             else
 165             {
 166                 x = rectParent.left;
 167                 y -= yspacing;
 168             }
 169         }
 170         hwndChild = GetWindow( hwndChild, GW_HWNDNEXT );
 171     }
 172     return yspacing;
 173 }
 174
 175
 176 /***********************************************************************
 177  *              SwitchToThisWindow (USER32.@)
 178  */
 179 void WINAPI SwitchToThisWindow( HWND hwnd, BOOL restore )
 180 {
 181     ShowWindow( hwnd, restore ? SW_RESTORE : SW_SHOWMINIMIZED );
 182 }
 183
 184
 185 /***********************************************************************
 186  *              GetWindowRect (USER32.@)
 187  */
 188 BOOL WINAPI GetWindowRect( HWND hwnd, LPRECT rect )
 189 {
 190     BOOL ret = WIN_GetRectangles( hwnd, rect, NULL );
 191     if (ret)
 192     {
 193         MapWindowPoints( GetAncestor( hwnd, GA_PARENT ), 0, (POINT *)rect, 2 );
 194         TRACE( "hwnd %04x (%d,%d)-(%d,%d)\n",
 195                hwnd, rect->left, rect->top, rect->right, rect->bottom);
 196     }
 197     return ret;
 198 }
 199
 200
 201 /***********************************************************************
 202  *              GetWindowRgn (USER32.@)
 203  */
 204 int WINAPI GetWindowRgn ( HWND hwnd, HRGN hrgn )
 205 {
 206     int nRet = ERROR;
 207     WND *wndPtr = WIN_GetPtr( hwnd );
 208
 209     if (wndPtr == WND_OTHER_PROCESS)
 210     {
 211         if (IsWindow( hwnd ))
 212             FIXME( "not supported on other process window %x\n", hwnd );
 213         wndPtr = NULL;
 214     }
 215     if (!wndPtr)
 216     {
 217         SetLastError( ERROR_INVALID_WINDOW_HANDLE );
 218         return ERROR;
 219     }
 220     if (wndPtr->hrgnWnd) nRet = CombineRgn( hrgn, wndPtr->hrgnWnd, 0, RGN_COPY );
 221     WIN_ReleasePtr( wndPtr );
 222     return nRet;
 223 }
 224
 225
 226 /***********************************************************************
 227  *              SetWindowRgn (USER32.@)
 228  */
 229 int WINAPI SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL bRedraw )
 230 {
 231     RECT rect;
 232     WND *wndPtr;
 233
 234     if (hrgn) /* verify that region really exists */
 235     {
 236         if (GetRgnBox( hrgn, &rect ) == ERROR) return FALSE;
 237     }
 238
 239     if (USER_Driver.pSetWindowRgn)
 240         return USER_Driver.pSetWindowRgn( hwnd, hrgn, bRedraw );
 241
 242     if ((wndPtr = WIN_GetPtr( hwnd )) == WND_OTHER_PROCESS)
 243     {
 244         if (IsWindow( hwnd ))
 245             FIXME( "not supported on other process window %x\n", hwnd );
 246         wndPtr = NULL;
 247     }
 248     if (!wndPtr)
 249     {
 250         SetLastError( ERROR_INVALID_WINDOW_HANDLE );
 251         return FALSE;
 252     }
 253
 254     if (wndPtr->hrgnWnd == hrgn)
 255     {
 256         WIN_ReleasePtr( wndPtr );
 257         return TRUE;
 258     }
 259
 260     if (wndPtr->hrgnWnd)
 261     {
 262         /* delete previous region */
 263         DeleteObject(wndPtr->hrgnWnd);
 264         wndPtr->hrgnWnd = 0;
 265     }
 266     wndPtr->hrgnWnd = hrgn;
 267     WIN_ReleasePtr( wndPtr );
 268
 269     /* Size the window to the rectangle of the new region (if it isn't NULL) */
 270     if (hrgn) SetWindowPos( hwnd, 0, rect.left, rect.top,
 271                             rect.right  - rect.left, rect.bottom - rect.top,
 272                             SWP_NOSIZE | SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOACTIVATE |
 273                             SWP_NOZORDER | (bRedraw ? 0 : SWP_NOREDRAW) );
 274     return TRUE;
 275 }
 276
 277
 278 /***********************************************************************
 279  *              GetClientRect (USER32.@)
 280  */
 281 BOOL WINAPI GetClientRect( HWND hwnd, LPRECT rect )
 282 {
 283     BOOL ret;
 284
 285     rect->right = rect->bottom = 0;
 286     if ((ret = WIN_GetRectangles( hwnd, NULL, rect )))
 287     {
 288         rect->right -= rect->left;
 289         rect->bottom -= rect->top;
 290     }
 291     rect->left = rect->top = 0;
 292     return ret;
 293 }
 294
 295
 296 /*******************************************************************
 297  *              ClientToScreen (USER32.@)
 298  */
 299 BOOL WINAPI ClientToScreen( HWND hwnd, LPPOINT lppnt )
 300 {
 301     MapWindowPoints( hwnd, 0, lppnt, 1 );
 302     return TRUE;
 303 }
 304
 305
 306 /*******************************************************************
 307  *              ScreenToClient (USER32.@)
 308  */
 309 BOOL WINAPI ScreenToClient( HWND hwnd, LPPOINT lppnt )
 310 {
 311     MapWindowPoints( 0, hwnd, lppnt, 1 );
 312     return TRUE;
 313 }
 314
 315
 316 /***********************************************************************
 317  *           find_child_from_point
 318  *
 319  * Find the child that contains pt. Helper for WindowFromPoint.
 320  * pt is in parent client coordinates.
 321  * lparam is the param to pass in the WM_NCHITTEST message.
 322  */
 323 static HWND find_child_from_point( HWND parent, POINT pt, INT *hittest, LPARAM lparam )
 324 {
 325     int i, res;
 326     LONG style, exstyle;
 327     RECT rectWindow, rectClient;
 328     WND *wndPtr;
 329     HWND *list = WIN_ListChildren( parent );
 330
 331     if (!list) return 0;
 332     for (i = 0; list[i]; i++)
 333     {
 334         /* If point is in window, and window is visible, and it  */
 335         /* is enabled (or it's a top-level window), then explore */
 336         /* its children. Otherwise, go to the next window.       */
 337
 338         style = GetWindowLongW( list[i], GWL_STYLE );
 339         if (!(style & WS_VISIBLE)) continue;  /* not visible -> skip */
 340         if ((style & (WS_POPUP | WS_CHILD | WS_DISABLED)) == (WS_CHILD | WS_DISABLED))
 341             continue;  /* disabled child -> skip */
 342         exstyle = GetWindowLongW( list[i], GWL_EXSTYLE );
 343         if ((exstyle & (WS_EX_LAYERED | WS_EX_TRANSPARENT)) == (WS_EX_LAYERED | WS_EX_TRANSPARENT))
 344             continue;  /* transparent -> skip */
 345
 346         if (!WIN_GetRectangles( list[i], &rectWindow, &rectClient )) continue;
 347         if (!PtInRect( &rectWindow, pt )) continue;  /* not in window -> skip */
 348
 349         /* FIXME: check window region for other processes too */
 350         if ((wndPtr = WIN_GetPtr( list[i] )) && wndPtr != WND_OTHER_PROCESS)
 351         {
 352             if (wndPtr->hrgnWnd && !PtInRegion( wndPtr->hrgnWnd,
 353                                                 pt.x - rectWindow.left, pt.y - rectWindow.top ))
 354             {
 355                 WIN_ReleasePtr( wndPtr );
 356                 continue;  /* point outside window region -> skip */
 357             }
 358             WIN_ReleasePtr( wndPtr );
 359         }
 360
 361         /* If window is minimized or disabled, return at once */
 362         if (style & WS_MINIMIZE)
 363         {
 364             *hittest = HTCAPTION;
 365             return list[i];
 366         }
 367         if (style & WS_DISABLED)
 368         {
 369             *hittest = HTERROR;
 370             return list[i];
 371         }
 372
 373         /* If point is in client area, explore children */
 374         if (PtInRect( &rectClient, pt ))
 375         {
 376             POINT new_pt;
 377             HWND ret;
 378
 379             new_pt.x = pt.x - rectClient.left;
 380             new_pt.y = pt.y - rectClient.top;
 381             if ((ret = find_child_from_point( list[i], new_pt, hittest, lparam )))
 382                 return ret;
 383         }
 384
 385         /* Now it's inside window, send WM_NCCHITTEST (if same thread) */
 386         if (!WIN_IsCurrentThread( list[i] ))
 387         {
 388             *hittest = HTCLIENT;
 389             return list[i];
 390         }
 391         if ((res = SendMessageA( list[i], WM_NCHITTEST, 0, lparam )) != HTTRANSPARENT)
 392         {
 393             *hittest = res;  /* Found the window */
 394             return list[i];
 395         }
 396         /* continue search with next sibling */
 397     }
 398     return 0;
 399 }
 400
 401
 402 /***********************************************************************
 403  *           WINPOS_WindowFromPoint
 404  *
 405  * Find the window and hittest for a given point.
 406  */
 407 HWND WINPOS_WindowFromPoint( HWND hwndScope, POINT pt, INT *hittest )
 408 {
 409     POINT xy = pt;
 410     int res;
 411     LONG style;
 412
 413     TRACE("scope %04x %ld,%ld\n", hwndScope, pt.x, pt.y);
 414
 415     if (!hwndScope) hwndScope = GetDesktopWindow();
 416     style = GetWindowLongW( hwndScope, GWL_STYLE );
 417
 418     *hittest = HTERROR;
 419     if (style & WS_DISABLED) return 0;
 420
 421     MapWindowPoints( GetDesktopWindow(), GetAncestor( hwndScope, GA_PARENT ), &xy, 1 );
 422
 423     if (!(style & WS_MINIMIZE))
 424     {
 425         RECT rectClient;
 426         if (WIN_GetRectangles( hwndScope, NULL, &rectClient ) && PtInRect( &rectClient, xy ))
 427         {
 428             HWND ret;
 429
 430             xy.x -= rectClient.left;
 431             xy.y -= rectClient.top;
 432             if ((ret = find_child_from_point( hwndScope, xy, hittest, MAKELONG( pt.x, pt.y ) )))
 433             {
 434                 TRACE( "found child %x\n", ret );
 435                 return ret;
 436             }
 437         }
 438     }
 439
 440     /* If nothing found, try the scope window */
 441     if (!WIN_IsCurrentThread( hwndScope ))
 442     {
 443         *hittest = HTCLIENT;
 444         TRACE( "returning %x\n", hwndScope );
 445         return hwndScope;
 446     }
 447     res = SendMessageA( hwndScope, WM_NCHITTEST, 0, MAKELONG( pt.x, pt.y ) );
 448     if (res != HTTRANSPARENT)
 449     {
 450         *hittest = res;  /* Found the window */
 451         TRACE( "returning %x\n", hwndScope );
 452         return hwndScope;
 453     }
 454     *hittest = HTNOWHERE;
 455     TRACE( "nothing found\n" );
 456     return 0;
 457 }
 458
 459
 460 /*******************************************************************
 461  *              WindowFromPoint (USER32.@)
 462  */
 463 HWND WINAPI WindowFromPoint( POINT pt )
 464 {
 465     INT hittest;
 466     return WINPOS_WindowFromPoint( 0, pt, &hittest );
 467 }
 468
 469
 470 /*******************************************************************
 471  *              ChildWindowFromPoint (USER32.@)
 472  */
 473 HWND WINAPI ChildWindowFromPoint( HWND hwndParent, POINT pt )
 474 {
 475     return ChildWindowFromPointEx( hwndParent, pt, CWP_ALL );
 476 }
 477
 478 /*******************************************************************
 479  *              ChildWindowFromPointEx (USER32.@)
 480  */
 481 HWND WINAPI ChildWindowFromPointEx( HWND hwndParent, POINT pt, UINT uFlags)
 482 {
 483     /* pt is in the client coordinates */
 484     HWND *list;
 485     int i;
 486     RECT rect;
 487     HWND retvalue;
 488
 489     GetClientRect( hwndParent, &rect );
 490     if (!PtInRect( &rect, pt )) return 0;
 491     if (!(list = WIN_ListChildren( hwndParent ))) return 0;
 492
 493     for (i = 0; list[i]; i++)
 494     {
 495         if (!WIN_GetRectangles( list[i], &rect, NULL )) continue;
 496         if (!PtInRect( &rect, pt )) continue;
 497         if (uFlags & (CWP_SKIPINVISIBLE|CWP_SKIPDISABLED))
 498         {
 499             LONG style = GetWindowLongW( list[i], GWL_STYLE );
 500             if ((uFlags & CWP_SKIPINVISIBLE) && !(style & WS_VISIBLE)) continue;
 501             if ((uFlags & CWP_SKIPDISABLED) && (style & WS_DISABLED)) continue;
 502         }
 503         if (uFlags & CWP_SKIPTRANSPARENT)
 504         {
 505             if (GetWindowLongW( list[i], GWL_EXSTYLE ) & WS_EX_TRANSPARENT) continue;
 506         }
 507         break;
 508     }
 509     retvalue = list[i];
 510     HeapFree( GetProcessHeap(), 0, list );
 511     if (!retvalue) retvalue = hwndParent;
 512     return retvalue;
 513 }
 514
 515
 516 /*******************************************************************
 517  *         WINPOS_GetWinOffset
 518  *
 519  * Calculate the offset between the origin of the two windows. Used
 520  * to implement MapWindowPoints.
 521  */
 522 static void WINPOS_GetWinOffset( HWND hwndFrom, HWND hwndTo, POINT *offset )
 523 {
 524     WND * wndPtr;
 525
 526     offset->x = offset->y = 0;
 527
 528     /* Translate source window origin to screen coords */
 529     if (hwndFrom)
 530     {
 531         HWND hwnd = hwndFrom;
 532
 533         while (hwnd)
 534         {
 535             if (hwnd == hwndTo) return;
 536             if (!(wndPtr = WIN_GetPtr( hwnd )))
 537             {
 538                 ERR( "bad hwndFrom = %04x\n", hwnd );
 539                 return;
 540             }
 541             if (wndPtr == WND_OTHER_PROCESS) goto other_process;
 542             offset->x += wndPtr->rectClient.left;
 543             offset->y += wndPtr->rectClient.top;
 544             hwnd = wndPtr->parent;
 545             WIN_ReleasePtr( wndPtr );
 546         }
 547     }
 548
 549     /* Translate origin to destination window coords */
 550     if (hwndTo)
 551     {
 552         HWND hwnd = hwndTo;
 553
 554         while (hwnd)
 555         {
 556             if (!(wndPtr = WIN_GetPtr( hwnd )))
 557             {
 558                 ERR( "bad hwndTo = %04x\n", hwnd );
 559                 return;
 560             }
 561             if (wndPtr == WND_OTHER_PROCESS) goto other_process;
 562             offset->x -= wndPtr->rectClient.left;
 563             offset->y -= wndPtr->rectClient.top;
 564             hwnd = wndPtr->parent;
 565             WIN_ReleasePtr( wndPtr );
 566         }
 567     }
 568     return;
 569
 570  other_process:  /* one of the parents may belong to another process, do it the hard way */
 571     offset->x = offset->y = 0;
 572     SERVER_START_REQ( get_windows_offset )
 573     {
 574         req->from = hwndFrom;
 575         req->to   = hwndTo;
 576         if (!wine_server_call( req ))
 577         {
 578             offset->x = reply->x;
 579             offset->y = reply->y;
 580         }
 581     }
 582     SERVER_END_REQ;
 583 }
 584
 585
 586 /*******************************************************************
 587  *              MapWindowPoints (USER.258)
 588  */
 589 void WINAPI MapWindowPoints16( HWND16 hwndFrom, HWND16 hwndTo,
 590                                LPPOINT16 lppt, UINT16 count )
 591 {
 592     POINT offset;
 593
 594     WINPOS_GetWinOffset( WIN_Handle32(hwndFrom), WIN_Handle32(hwndTo), &offset );
 595     while (count--)
 596     {
 597         lppt->x += offset.x;
 598         lppt->y += offset.y;
 599         lppt++;
 600     }
 601 }
 602
 603
 604 /*******************************************************************
 605  *              MapWindowPoints (USER32.@)
 606  */
 607 INT WINAPI MapWindowPoints( HWND hwndFrom, HWND hwndTo, LPPOINT lppt, UINT count )
 608 {
 609     POINT offset;
 610
 611     WINPOS_GetWinOffset( hwndFrom, hwndTo, &offset );
 612     while (count--)
 613     {
 614         lppt->x += offset.x;
 615         lppt->y += offset.y;
 616         lppt++;
 617     }
 618     return MAKELONG( LOWORD(offset.x), LOWORD(offset.y) );
 619 }
 620
 621
 622 /***********************************************************************
 623  *              IsIconic (USER32.@)
 624  */
 625 BOOL WINAPI IsIconic(HWND hWnd)
 626 {
 627     return (GetWindowLongW( hWnd, GWL_STYLE ) & WS_MINIMIZE) != 0;
 628 }
 629
 630
 631 /***********************************************************************
 632  *              IsZoomed (USER32.@)
 633  */
 634 BOOL WINAPI IsZoomed(HWND hWnd)
 635 {
 636     return (GetWindowLongW( hWnd, GWL_STYLE ) & WS_MAXIMIZE) != 0;
 637 }
 638
 639
 640 /*******************************************************************
 641  *              GetActiveWindow (USER32.@)
 642  */
 643 HWND WINAPI GetActiveWindow(void)
 644 {
 645     MESSAGEQUEUE *pCurMsgQ = 0;
 646
 647     /* Get the messageQ for the current thread */
 648     if (!(pCurMsgQ = QUEUE_Current()))
 649 {
 650         WARN("\tCurrent message queue not found. Exiting!\n" );
 651         return 0;
 652     }
 653
 654     /* Return the current active window from the perQ data of the current message Q */
 655     return PERQDATA_GetActiveWnd( pCurMsgQ->pQData );
 656 }
 657
 658
 659 /*******************************************************************
 660  *         WINPOS_CanActivate
 661  */
 662 static BOOL WINPOS_CanActivate(HWND hwnd)
 663 {
 664     if (!hwnd) return FALSE;
 665     return ((GetWindowLongW( hwnd, GWL_STYLE ) & (WS_DISABLED|WS_CHILD)) == 0);
 666 }
 667
 668 /*******************************************************************
 669  *         WINPOS_IsVisible
 670  */
 671 static BOOL WINPOS_IsVisible(HWND hwnd)
 672 {
 673     if (!hwnd) return FALSE;
 674     return ((GetWindowLongW( hwnd, GWL_STYLE ) & WS_VISIBLE) == WS_VISIBLE);
 675 }
 676
 677
 678 /*******************************************************************
 679  *              SetActiveWindow (USER32.@)
 680  */
 681 HWND WINAPI SetActiveWindow( HWND hwnd )
 682 {
 683     HWND prev = 0;
 684     WND *wndPtr = WIN_FindWndPtr( hwnd );
 685     MESSAGEQUEUE *pMsgQ = 0, *pCurMsgQ = 0;
 686
 687     if (!wndPtr) return 0;
 688
 689     if (wndPtr->dwStyle & (WS_DISABLED | WS_CHILD)) goto error;
 690
 691     /* Get the messageQ for the current thread */
 692     if (!(pCurMsgQ = QUEUE_Current()))
 693     {
 694         WARN("\tCurrent message queue not found. Exiting!\n" );
 695         goto error;
 696     }
 697
 698     /* Retrieve the message queue associated with this window */
 699     pMsgQ = (MESSAGEQUEUE *)QUEUE_Lock( wndPtr->hmemTaskQ );
 700     if ( !pMsgQ )
 701     {
 702         WARN("\tWindow message queue not found. Exiting!\n" );
 703         goto error;
 704     }
 705
 706     /* Make sure that the window is associated with the calling threads
 707      * message queue. It must share the same perQ data.
 708      */
 709     if ( pCurMsgQ->pQData != pMsgQ->pQData )
 710     {
 711         QUEUE_Unlock( pMsgQ );
 712         goto error;
 713     }
 714
 715     /* Save current active window */
 716     prev = PERQDATA_GetActiveWnd( pMsgQ->pQData );
 717     QUEUE_Unlock( pMsgQ );
 718     WIN_ReleaseWndPtr(wndPtr);
 719     WINPOS_SetActiveWindow( hwnd, FALSE, TRUE );
 720     return prev;
 721
 722  error:
 723     WIN_ReleaseWndPtr(wndPtr);
 724     return 0;
 725 }
 726
 727
 728 /*******************************************************************
 729  *              GetForegroundWindow (USER32.@)
 730  */
 731 HWND WINAPI GetForegroundWindow(void)
 732 {
 733     HWND hwndActive = 0;
 734
 735     /* Get the foreground window (active window of hActiveQueue) */
 736     if ( hActiveQueue )
 737     {
 738         MESSAGEQUEUE *pActiveQueue = QUEUE_Lock( hActiveQueue );
 739         if ( pActiveQueue )
 740             hwndActive = PERQDATA_GetActiveWnd( pActiveQueue->pQData );
 741
 742         QUEUE_Unlock( pActiveQueue );
 743     }
 744
 745     return hwndActive;
 746 }
 747
 748 /*******************************************************************
 749  *              SetForegroundWindow (USER32.@)
 750  */
 751 BOOL WINAPI SetForegroundWindow( HWND hwnd )
 752 {
 753     if (!hwnd) return WINPOS_SetActiveWindow( 0, FALSE, TRUE );
 754
 755     /* child windows get WM_CHILDACTIVATE message */
 756     if ((GetWindowLongW( hwnd, GWL_STYLE ) & (WS_CHILD | WS_POPUP)) == WS_CHILD)
 757         return SendMessageA( hwnd, WM_CHILDACTIVATE, 0, 0 );
 758
 759     hwnd = WIN_GetFullHandle( hwnd );
 760     if( hwnd == GetForegroundWindow() ) return FALSE;
 761
 762     return WINPOS_SetActiveWindow( hwnd, FALSE, TRUE );
 763 }
 764
 765
 766 /*******************************************************************
 767  *              AllowSetForegroundWindow (USER32.@)
 768  */
 769 BOOL WINAPI AllowSetForegroundWindow( DWORD procid )
 770 {
 771     /* FIXME: If Win98/2000 style SetForegroundWindow behavior is
 772      * implemented, then fix this function. */
 773     return TRUE;
 774 }
 775
 776
 777 /*******************************************************************
 778  *              LockSetForegroundWindow (USER32.@)
 779  */
 780 BOOL WINAPI LockSetForegroundWindow( UINT lockcode )
 781 {
 782     /* FIXME: If Win98/2000 style SetForegroundWindow behavior is
 783      * implemented, then fix this function. */
 784     return TRUE;
 785 }
 786
 787
 788 /*******************************************************************
 789  *              SetShellWindow (USER32.@)
 790  */
 791 HWND WINAPI SetShellWindow(HWND hwndshell)
 792 {   WARN("(hWnd=%08x) semi stub\n",hwndshell );
 793
 794     hGlobalShellWindow = WIN_GetFullHandle( hwndshell );
 795     return hGlobalShellWindow;
 796 }
 797
 798
 799 /*******************************************************************
 800  *              GetShellWindow (USER32.@)
 801  */
 802 HWND WINAPI GetShellWindow(void)
 803 {   WARN("(hWnd=%x) semi stub\n",hGlobalShellWindow );
 804
 805     return hGlobalShellWindow;
 806 }
 807
 808
 809 /***********************************************************************
 810  *              BringWindowToTop (USER32.@)
 811  */
 812 BOOL WINAPI BringWindowToTop( HWND hwnd )
 813 {
 814     return SetWindowPos( hwnd, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE );
 815 }
 816
 817
 818 /***********************************************************************
 819  *              MoveWindow (USER32.@)
 820  */
 821 BOOL WINAPI MoveWindow( HWND hwnd, INT x, INT y, INT cx, INT cy,
 822                             BOOL repaint )
 823 {
 824     int flags = SWP_NOZORDER | SWP_NOACTIVATE;
 825     if (!repaint) flags |= SWP_NOREDRAW;
 826     TRACE("%04x %d,%d %dx%d %d\n",
 827             hwnd, x, y, cx, cy, repaint );
 828     return SetWindowPos( hwnd, 0, x, y, cx, cy, flags );
 829 }
 830
 831 /***********************************************************************
 832  *           WINPOS_InitInternalPos
 833  */
 834 static LPINTERNALPOS WINPOS_InitInternalPos( WND* wnd, POINT pt, const RECT *restoreRect )
 835 {
 836     LPINTERNALPOS lpPos = (LPINTERNALPOS) GetPropA( wnd->hwndSelf,
 837                                                       atomInternalPos );
 838     if( !lpPos )
 839     {
 840         /* this happens when the window is minimized/maximized
 841          * for the first time (rectWindow is not adjusted yet) */
 842
 843         lpPos = HeapAlloc( GetProcessHeap(), 0, sizeof(INTERNALPOS) );
 844         if( !lpPos ) return NULL;
 845
 846         SetPropA( wnd->hwndSelf, atomInternalPos, (HANDLE)lpPos );
 847         lpPos->hwndIconTitle = 0; /* defer until needs to be shown */
 848         CONV_RECT32TO16( &wnd->rectWindow, &lpPos->rectNormal );
 849         *(UINT*)&lpPos->ptIconPos = *(UINT*)&lpPos->ptMaxPos = 0xFFFFFFFF;
 850     }
 851
 852     if( wnd->dwStyle & WS_MINIMIZE )
 853         CONV_POINT32TO16( &pt, &lpPos->ptIconPos );
 854     else if( wnd->dwStyle & WS_MAXIMIZE )
 855         CONV_POINT32TO16( &pt, &lpPos->ptMaxPos );
 856     else if( restoreRect )
 857         CONV_RECT32TO16( restoreRect, &lpPos->rectNormal );
 858
 859     return lpPos;
 860 }
 861
 862 /***********************************************************************
 863  *           WINPOS_RedrawIconTitle
 864  */
 865 BOOL WINPOS_RedrawIconTitle( HWND hWnd )
 866 {
 867     LPINTERNALPOS lpPos = (LPINTERNALPOS)GetPropA( hWnd, atomInternalPos );
 868     if( lpPos )
 869     {
 870         if( lpPos->hwndIconTitle )
 871         {
 872             SendMessageA( lpPos->hwndIconTitle, WM_SHOWWINDOW, TRUE, 0);
 873             InvalidateRect( lpPos->hwndIconTitle, NULL, TRUE );
 874             return TRUE;
 875         }
 876     }
 877     return FALSE;
 878 }
 879
 880 /***********************************************************************
 881  *           WINPOS_ShowIconTitle
 882  */
 883 BOOL WINPOS_ShowIconTitle( HWND hwnd, BOOL bShow )
 884 {
 885     LPINTERNALPOS lpPos = (LPINTERNALPOS)GetPropA( hwnd, atomInternalPos );
 886
 887     if( lpPos && !(GetWindowLongA( hwnd, GWL_EXSTYLE) & WS_EX_MANAGED))
 888     {
 889         HWND title = lpPos->hwndIconTitle;
 890
 891         TRACE("0x%04x %i\n", hwnd, (bShow != 0) );
 892
 893         if( !title )
 894             lpPos->hwndIconTitle = title = ICONTITLE_Create( hwnd );
 895         if( bShow )
 896         {
 897             if (!IsWindowVisible(title))
 898             {
 899                 SendMessageA( title, WM_SHOWWINDOW, TRUE, 0 );
 900                 SetWindowPos( title, 0, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE |
 901                               SWP_NOACTIVATE | SWP_NOZORDER | SWP_SHOWWINDOW );
 902             }
 903         }
 904         else ShowWindow( title, SW_HIDE );
 905     }
 906     return FALSE;
 907 }
 908
 909 /*******************************************************************
 910  *           WINPOS_GetMinMaxInfo
 911  *
 912  * Get the minimized and maximized information for a window.
 913  */
 914 void WINPOS_GetMinMaxInfo( HWND hwnd, POINT *maxSize, POINT *maxPos,
 915                            POINT *minTrack, POINT *maxTrack )
 916 {
 917     LPINTERNALPOS lpPos;
 918     MINMAXINFO MinMax;
 919     INT xinc, yinc;
 920     LONG style = GetWindowLongA( hwnd, GWL_STYLE );
 921     LONG exstyle = GetWindowLongA( hwnd, GWL_EXSTYLE );
 922
 923     /* Compute default values */
 924
 925     MinMax.ptMaxSize.x = GetSystemMetrics(SM_CXSCREEN);
 926     MinMax.ptMaxSize.y = GetSystemMetrics(SM_CYSCREEN);
 927     MinMax.ptMinTrackSize.x = GetSystemMetrics(SM_CXMINTRACK);
 928     MinMax.ptMinTrackSize.y = GetSystemMetrics(SM_CYMINTRACK);
 929     MinMax.ptMaxTrackSize.x = GetSystemMetrics(SM_CXSCREEN);
 930     MinMax.ptMaxTrackSize.y = GetSystemMetrics(SM_CYSCREEN);
 931
 932     if (HAS_DLGFRAME( style, exstyle ))
 933     {
 934         xinc = GetSystemMetrics(SM_CXDLGFRAME);
 935         yinc = GetSystemMetrics(SM_CYDLGFRAME);
 936     }
 937     else
 938     {
 939         xinc = yinc = 0;
 940         if (HAS_THICKFRAME(style))
 941         {
 942             xinc += GetSystemMetrics(SM_CXFRAME);
 943             yinc += GetSystemMetrics(SM_CYFRAME);
 944         }
 945         if (style & WS_BORDER)
 946         {
 947             xinc += GetSystemMetrics(SM_CXBORDER);
 948             yinc += GetSystemMetrics(SM_CYBORDER);
 949         }
 950     }
 951     MinMax.ptMaxSize.x += 2 * xinc;
 952     MinMax.ptMaxSize.y += 2 * yinc;
 953
 954     lpPos = (LPINTERNALPOS)GetPropA( hwnd, atomInternalPos );
 955     if( lpPos && !EMPTYPOINT(lpPos->ptMaxPos) )
 956         CONV_POINT16TO32( &lpPos->ptMaxPos, &MinMax.ptMaxPosition );
 957     else
 958     {
 959         MinMax.ptMaxPosition.x = -xinc;
 960         MinMax.ptMaxPosition.y = -yinc;
 961     }
 962
 963     SendMessageA( hwnd, WM_GETMINMAXINFO, 0, (LPARAM)&MinMax );
 964
 965       /* Some sanity checks */
 966
 967     TRACE("%ld %ld / %ld %ld / %ld %ld / %ld %ld\n",
 968                       MinMax.ptMaxSize.x, MinMax.ptMaxSize.y,
 969                       MinMax.ptMaxPosition.x, MinMax.ptMaxPosition.y,
 970                       MinMax.ptMaxTrackSize.x, MinMax.ptMaxTrackSize.y,
 971                       MinMax.ptMinTrackSize.x, MinMax.ptMinTrackSize.y);
 972     MinMax.ptMaxTrackSize.x = max( MinMax.ptMaxTrackSize.x,
 973                                    MinMax.ptMinTrackSize.x );
 974     MinMax.ptMaxTrackSize.y = max( MinMax.ptMaxTrackSize.y,
 975                                    MinMax.ptMinTrackSize.y );
 976
 977     if (maxSize) *maxSize = MinMax.ptMaxSize;
 978     if (maxPos) *maxPos = MinMax.ptMaxPosition;
 979     if (minTrack) *minTrack = MinMax.ptMinTrackSize;
 980     if (maxTrack) *maxTrack = MinMax.ptMaxTrackSize;
 981 }
 982
 983 /***********************************************************************
 984  *              ShowWindowAsync (USER32.@)
 985  *
 986  * doesn't wait; returns immediately.
 987  * used by threads to toggle windows in other (possibly hanging) threads
 988  */
 989 BOOL WINAPI ShowWindowAsync( HWND hwnd, INT cmd )
 990 {
 991     /* FIXME: does ShowWindow() return immediately ? */
 992     return ShowWindow(hwnd, cmd);
 993 }
 994
 995
 996 /***********************************************************************
 997  *              ShowWindow (USER32.@)
 998  */
 999 BOOL WINAPI ShowWindow( HWND hwnd, INT cmd )
1000 {
1001     HWND full_handle;
1002
1003     if ((full_handle = WIN_IsCurrentThread( hwnd )))
1004         return USER_Driver.pShowWindow( full_handle, cmd );
1005     return SendMessageW( hwnd, WM_WINE_SHOWWINDOW, cmd, 0 );
1006 }
1007
1008
1009 /***********************************************************************
1010  *              GetInternalWindowPos (USER.460)
1011  */
1012 UINT16 WINAPI GetInternalWindowPos16( HWND16 hwnd, LPRECT16 rectWnd,
1013                                       LPPOINT16 ptIcon )
1014 {
1015     WINDOWPLACEMENT16 wndpl;
1016     if (GetWindowPlacement16( hwnd, &wndpl ))
1017     {
1018         if (rectWnd) *rectWnd = wndpl.rcNormalPosition;
1019         if (ptIcon)  *ptIcon = wndpl.ptMinPosition;
1020         return wndpl.showCmd;
1021     }
1022     return 0;
1023 }
1024
1025
1026 /***********************************************************************
1027  *              GetInternalWindowPos (USER32.@)
1028  */
1029 UINT WINAPI GetInternalWindowPos( HWND hwnd, LPRECT rectWnd,
1030                                       LPPOINT ptIcon )
1031 {
1032     WINDOWPLACEMENT wndpl;
1033     if (GetWindowPlacement( hwnd, &wndpl ))
1034     {
1035         if (rectWnd) *rectWnd = wndpl.rcNormalPosition;
1036         if (ptIcon)  *ptIcon = wndpl.ptMinPosition;
1037         return wndpl.showCmd;
1038     }
1039     return 0;
1040 }
1041
1042
1043 /***********************************************************************
1044  *              GetWindowPlacement (USER32.@)
1045  *
1046  * Win95:
1047  * Fails if wndpl->length of Win95 (!) apps is invalid.
1048  */
1049 BOOL WINAPI GetWindowPlacement( HWND hwnd, WINDOWPLACEMENT *wndpl )
1050 {
1051     WND *pWnd = WIN_FindWndPtr( hwnd );
1052     LPINTERNALPOS lpPos;
1053
1054     if(!pWnd ) return FALSE;
1055
1056     lpPos = WINPOS_InitInternalPos( pWnd, *(LPPOINT)&pWnd->rectWindow.left, &pWnd->rectWindow );
1057     wndpl->length  = sizeof(*wndpl);
1058     if( pWnd->dwStyle & WS_MINIMIZE )
1059         wndpl->showCmd = SW_SHOWMINIMIZED;
1060     else
1061         wndpl->showCmd = ( pWnd->dwStyle & WS_MAXIMIZE ) ? SW_SHOWMAXIMIZED : SW_SHOWNORMAL ;
1062     if( pWnd->flags & WIN_RESTORE_MAX )
1063         wndpl->flags = WPF_RESTORETOMAXIMIZED;
1064     else
1065         wndpl->flags = 0;
1066     CONV_POINT16TO32( &lpPos->ptIconPos, &wndpl->ptMinPosition );
1067     CONV_POINT16TO32( &lpPos->ptMaxPos, &wndpl->ptMaxPosition );
1068     CONV_RECT16TO32( &lpPos->rectNormal, &wndpl->rcNormalPosition );
1069     WIN_ReleaseWndPtr(pWnd);
1070     return TRUE;
1071 }
1072
1073
1074 /***********************************************************************
1075  *           WINPOS_SetPlacement
1076  */
1077 static BOOL WINPOS_SetPlacement( HWND hwnd, const WINDOWPLACEMENT *wndpl, UINT flags )
1078 {
1079     WND *pWnd = WIN_FindWndPtr( hwnd );
1080     if( pWnd )
1081     {
1082         LPINTERNALPOS lpPos = (LPINTERNALPOS)WINPOS_InitInternalPos( pWnd,
1083                              *(LPPOINT)&pWnd->rectWindow.left, &pWnd->rectWindow );
1084
1085         if( flags & PLACE_MIN ) CONV_POINT32TO16( &wndpl->ptMinPosition, &lpPos->ptIconPos );
1086         if( flags & PLACE_MAX ) CONV_POINT32TO16( &wndpl->ptMaxPosition, &lpPos->ptMaxPos );
1087         if( flags & PLACE_RECT) CONV_RECT32TO16( &wndpl->rcNormalPosition, &lpPos->rectNormal );
1088
1089         if( pWnd->dwStyle & WS_MINIMIZE )
1090         {
1091             WINPOS_ShowIconTitle( pWnd->hwndSelf, FALSE );
1092             if( wndpl->flags & WPF_SETMINPOSITION && !EMPTYPOINT(lpPos->ptIconPos))
1093                 SetWindowPos( hwnd, 0, lpPos->ptIconPos.x, lpPos->ptIconPos.y,
1094                                 0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
1095         }
1096         else if( pWnd->dwStyle & WS_MAXIMIZE )
1097         {
1098             if( !EMPTYPOINT(lpPos->ptMaxPos) )
1099                 SetWindowPos( hwnd, 0, lpPos->ptMaxPos.x, lpPos->ptMaxPos.y,
1100                                 0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
1101         }
1102         else if( flags & PLACE_RECT )
1103                 SetWindowPos( hwnd, 0, lpPos->rectNormal.left, lpPos->rectNormal.top,
1104                                 lpPos->rectNormal.right - lpPos->rectNormal.left,
1105                                 lpPos->rectNormal.bottom - lpPos->rectNormal.top,
1106                                 SWP_NOZORDER | SWP_NOACTIVATE );
1107
1108         ShowWindow( hwnd, wndpl->showCmd );
1109         if( IsWindow(hwnd) && pWnd->dwStyle & WS_MINIMIZE )
1110         {
1111             if( pWnd->dwStyle & WS_VISIBLE ) WINPOS_ShowIconTitle( pWnd->hwndSelf, TRUE );
1112
1113             /* SDK: ...valid only the next time... */
1114             if( wndpl->flags & WPF_RESTORETOMAXIMIZED ) pWnd->flags |= WIN_RESTORE_MAX;
1115         }
1116         WIN_ReleaseWndPtr(pWnd);
1117         return TRUE;
1118     }
1119     return FALSE;
1120 }
1121
1122
1123 /***********************************************************************
1124  *              SetWindowPlacement (USER32.@)
1125  *
1126  * Win95:
1127  * Fails if wndpl->length of Win95 (!) apps is invalid.
1128  */
1129 BOOL WINAPI SetWindowPlacement( HWND hwnd, const WINDOWPLACEMENT *wpl )
1130 {
1131     if (!wpl) return FALSE;
1132     return WINPOS_SetPlacement( hwnd, wpl, PLACE_MIN | PLACE_MAX | PLACE_RECT );
1133 }
1134
1135
1136 /***********************************************************************
1137  *              AnimateWindow (USER32.@)
1138  *              Shows/Hides a window with an animation
1139  *              NO ANIMATION YET
1140  */
1141 BOOL WINAPI AnimateWindow(HWND hwnd, DWORD dwTime, DWORD dwFlags)
1142 {
1143         FIXME("partial stub\n");
1144
1145         /* If trying to show/hide and it's already   *
1146          * shown/hidden or invalid window, fail with *
1147          * invalid parameter                         */
1148         if(!IsWindow(hwnd) ||
1149            (IsWindowVisible(hwnd) && !(dwFlags & AW_HIDE)) ||
1150            (!IsWindowVisible(hwnd) && (dwFlags & AW_HIDE)))
1151         {
1152                 SetLastError(ERROR_INVALID_PARAMETER);
1153                 return FALSE;
1154         }
1155
1156         ShowWindow(hwnd, (dwFlags & AW_HIDE) ? SW_HIDE : ((dwFlags & AW_ACTIVATE) ? SW_SHOW : SW_SHOWNA));
1157
1158         return TRUE;
1159 }
1160
1161 /***********************************************************************
1162  *              SetInternalWindowPos (USER32.@)
1163  */
1164 void WINAPI SetInternalWindowPos( HWND hwnd, UINT showCmd,
1165                                     LPRECT rect, LPPOINT pt )
1166 {
1167     if( IsWindow(hwnd) )
1168     {
1169         WINDOWPLACEMENT wndpl;
1170         UINT flags;
1171
1172         wndpl.length  = sizeof(wndpl);
1173         wndpl.showCmd = showCmd;
1174         wndpl.flags = flags = 0;
1175
1176         if( pt )
1177         {
1178             flags |= PLACE_MIN;
1179             wndpl.flags |= WPF_SETMINPOSITION;
1180             wndpl.ptMinPosition = *pt;
1181         }
1182         if( rect )
1183         {
1184             flags |= PLACE_RECT;
1185             wndpl.rcNormalPosition = *rect;
1186         }
1187         WINPOS_SetPlacement( hwnd, &wndpl, flags );
1188     }
1189 }
1190
1191 /*******************************************************************
1192  *         WINPOS_SetActiveWindow
1193  *
1194  * SetActiveWindow() back-end. This is the only function that
1195  * can assign active status to a window. It must be called only
1196  * for the top level windows.
1197  */
1198 BOOL WINPOS_SetActiveWindow( HWND hWnd, BOOL fMouse, BOOL fChangeFocus)
1199 {
1200     WND*     wndPtr=0, *wndTemp;
1201     HQUEUE16 hOldActiveQueue, hNewActiveQueue;
1202     MESSAGEQUEUE *pOldActiveQueue = 0, *pNewActiveQueue = 0;
1203     WORD     wIconized = 0;
1204     HWND     hwndActive = 0;
1205     BOOL     bRet = 0;
1206
1207     TRACE("(%04x, %d, %d)\n", hWnd, fMouse, fChangeFocus );
1208
1209     /* Get current active window from the active queue */
1210     if ( hActiveQueue )
1211     {
1212         pOldActiveQueue = QUEUE_Lock( hActiveQueue );
1213         if ( pOldActiveQueue )
1214             hwndActive = PERQDATA_GetActiveWnd( pOldActiveQueue->pQData );
1215     }
1216
1217     if ((wndPtr = WIN_FindWndPtr(hWnd)))
1218         hWnd = wndPtr->hwndSelf;  /* make it a full handle */
1219
1220     /* paranoid checks */
1221     if( hWnd == GetDesktopWindow() || (bRet = (hWnd == hwndActive)) )
1222         goto CLEANUP_END;
1223
1224 /*  if (wndPtr && (GetFastQueue16() != wndPtr->hmemTaskQ))
1225  *      return 0;
1226  */
1227     hOldActiveQueue = hActiveQueue;
1228
1229     if( (wndTemp = WIN_FindWndPtr(hwndActive)) )
1230     {
1231         wIconized = HIWORD(wndTemp->dwStyle & WS_MINIMIZE);
1232         WIN_ReleaseWndPtr(wndTemp);
1233     }
1234     else
1235         TRACE("no current active window.\n");
1236
1237     /* call CBT hook chain */
1238     if (HOOK_IsHooked( WH_CBT ))
1239     {
1240         CBTACTIVATESTRUCT cbt;
1241         cbt.fMouse     = fMouse;
1242         cbt.hWndActive = hwndActive;
1243         if (HOOK_CallHooksA( WH_CBT, HCBT_ACTIVATE, (WPARAM)hWnd, (LPARAM)&cbt )) goto CLEANUP_END;
1244     }
1245
1246     /* set prev active wnd to current active wnd and send notification */
1247     if ((hwndPrevActive = hwndActive) && IsWindow(hwndPrevActive))
1248     {
1249         MESSAGEQUEUE *pTempActiveQueue = 0;
1250
1251         SendNotifyMessageA( hwndPrevActive, WM_NCACTIVATE, FALSE, 0 );
1252         SendNotifyMessageA( hwndPrevActive, WM_ACTIVATE,
1253                         MAKEWPARAM( WA_INACTIVE, wIconized ),
1254                         (LPARAM)hWnd );
1255
1256         /* check if something happened during message processing
1257          * (global active queue may have changed)
1258          */
1259         pTempActiveQueue = QUEUE_Lock( hActiveQueue );
1260         if(!pTempActiveQueue)
1261             goto CLEANUP_END;
1262
1263         hwndActive = PERQDATA_GetActiveWnd( pTempActiveQueue->pQData );
1264         QUEUE_Unlock( pTempActiveQueue );
1265         if( hwndPrevActive != hwndActive )
1266             goto CLEANUP_END;
1267     }
1268
1269     /* Set new active window in the message queue */
1270     hwndActive = hWnd;
1271     if ( wndPtr )
1272     {
1273         pNewActiveQueue = QUEUE_Lock( wndPtr->hmemTaskQ );
1274         if ( pNewActiveQueue )
1275             PERQDATA_SetActiveWnd( pNewActiveQueue->pQData, hwndActive );
1276     }
1277     else /* have to do this or MDI frame activation goes to hell */
1278         if( pOldActiveQueue )
1279             PERQDATA_SetActiveWnd( pOldActiveQueue->pQData, 0 );
1280
1281     /* send palette messages */
1282     if (hWnd && SendMessageW( hWnd, WM_QUERYNEWPALETTE, 0, 0L))
1283         SendMessageW( HWND_BROADCAST, WM_PALETTEISCHANGING, (WPARAM)hWnd, 0 );
1284
1285     /* if prev wnd is minimized redraw icon title */
1286     if( IsIconic( hwndPrevActive ) ) WINPOS_RedrawIconTitle(hwndPrevActive);
1287
1288     /* managed windows will get ConfigureNotify event */
1289     if (wndPtr && !(wndPtr->dwStyle & WS_CHILD) && !(wndPtr->dwExStyle & WS_EX_MANAGED))
1290     {
1291         /* check Z-order and bring hWnd to the top */
1292         HWND tmp = GetTopWindow(0);
1293         while (tmp && !(GetWindowLongA( tmp, GWL_STYLE ) & WS_VISIBLE))
1294             tmp = GetWindow( tmp, GW_HWNDNEXT );
1295
1296         if( tmp != hWnd )
1297             SetWindowPos(hWnd, HWND_TOP, 0,0,0,0,
1298                            SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE );
1299         if (!IsWindow(hWnd))
1300             goto CLEANUP;
1301     }
1302
1303     /* Get a handle to the new active queue */
1304     hNewActiveQueue = wndPtr ? wndPtr->hmemTaskQ : 0;
1305
1306     /* send WM_ACTIVATEAPP if necessary */
1307     if (hOldActiveQueue != hNewActiveQueue)
1308     {
1309         HWND *list, *phwnd;
1310         DWORD old_thread = GetWindowThreadProcessId( hwndPrevActive, NULL );
1311         DWORD new_thread = GetWindowThreadProcessId( hwndActive, NULL );
1312
1313         if ((list = WIN_ListChildren( GetDesktopWindow() )))
1314         {
1315             for (phwnd = list; *phwnd; phwnd++)
1316             {
1317                 if (!IsWindow( *phwnd )) continue;
1318                 if (GetWindowThreadProcessId( *phwnd, NULL ) == old_thread)
1319                     SendNotifyMessageW( *phwnd, WM_ACTIVATEAPP, 0, new_thread );
1320             }
1321             HeapFree( GetProcessHeap(), 0, list );
1322         }
1323
1324         hActiveQueue = hNewActiveQueue;
1325
1326         if ((list = WIN_ListChildren( GetDesktopWindow() )))
1327         {
1328             for (phwnd = list; *phwnd; phwnd++)
1329             {
1330                 if (!IsWindow( *phwnd )) continue;
1331                 if (GetWindowThreadProcessId( *phwnd, NULL ) == new_thread)
1332                     SendMessageW( *phwnd, WM_ACTIVATEAPP, 1, old_thread );
1333             }
1334             HeapFree( GetProcessHeap(), 0, list );
1335         }
1336
1337         if (hWnd && !IsWindow(hWnd)) goto CLEANUP;
1338     }
1339
1340     if (hWnd)
1341     {
1342         /* walk up to the first unowned window */
1343         HWND tmp = GetAncestor( hWnd, GA_ROOTOWNER );
1344         if ((wndTemp = WIN_FindWndPtr( tmp )))
1345         {
1346             /* and set last active owned popup */
1347             wndTemp->hwndLastActive = hWnd;
1348
1349             wIconized = HIWORD(wndTemp->dwStyle & WS_MINIMIZE);
1350             WIN_ReleaseWndPtr(wndTemp);
1351         }
1352         SendMessageA( hWnd, WM_NCACTIVATE, TRUE, 0 );
1353         SendMessageA( hWnd, WM_ACTIVATE,
1354                  MAKEWPARAM( (fMouse) ? WA_CLICKACTIVE : WA_ACTIVE, wIconized),
1355                  (LPARAM)hwndPrevActive );
1356         if( !IsWindow(hWnd) ) goto CLEANUP;
1357     }
1358
1359     /* change focus if possible */
1360     if ( fChangeFocus )
1361     {
1362         if ( pNewActiveQueue )
1363         {
1364             HWND hOldFocus = PERQDATA_GetFocusWnd( pNewActiveQueue->pQData );
1365
1366             if ( !hOldFocus || GetAncestor( hOldFocus, GA_ROOT ) != hwndActive )
1367                 FOCUS_SwitchFocus( pNewActiveQueue, hOldFocus,
1368                                    (wndPtr && (wndPtr->dwStyle & WS_MINIMIZE))?
1369                                    0 : hwndActive );
1370         }
1371
1372         if ( pOldActiveQueue &&
1373              ( !pNewActiveQueue ||
1374                 pNewActiveQueue->pQData != pOldActiveQueue->pQData ) )
1375         {
1376             HWND hOldFocus = PERQDATA_GetFocusWnd( pOldActiveQueue->pQData );
1377             if ( hOldFocus )
1378                 FOCUS_SwitchFocus( pOldActiveQueue, hOldFocus, 0 );
1379         }
1380     }
1381
1382     if( !hwndPrevActive && wndPtr )
1383     {
1384         if (USER_Driver.pForceWindowRaise) USER_Driver.pForceWindowRaise( wndPtr->hwndSelf );
1385     }
1386
1387     /* if active wnd is minimized redraw icon title */
1388     if( IsIconic(hwndActive) ) WINPOS_RedrawIconTitle(hwndActive);
1389
1390     bRet = (hWnd == hwndActive);  /* Success? */
1391
1392 CLEANUP: /* Unlock the message queues before returning */
1393
1394     if ( pNewActiveQueue )
1395         QUEUE_Unlock( pNewActiveQueue );
1396
1397 CLEANUP_END:
1398
1399     if ( pOldActiveQueue )
1400         QUEUE_Unlock( pOldActiveQueue );
1401
1402     WIN_ReleaseWndPtr(wndPtr);
1403     return bRet;
1404 }
1405
1406 /*******************************************************************
1407  *         WINPOS_ActivateOtherWindow
1408  *
1409  *  Activates window other than pWnd.
1410  */
1411 void WINPOS_ActivateOtherWindow(HWND hwnd)
1412 {
1413     HWND hwndActive = 0;
1414     HWND hwndTo = 0;
1415     HWND hwndDefaultTo = 0;
1416     HWND owner;
1417
1418     /* Get current active window from the active queue */
1419     if ( hActiveQueue )
1420     {
1421         MESSAGEQUEUE *pActiveQueue = QUEUE_Lock( hActiveQueue );
1422         if ( pActiveQueue )
1423         {
1424             hwndActive = PERQDATA_GetActiveWnd( pActiveQueue->pQData );
1425             QUEUE_Unlock( pActiveQueue );
1426         }
1427     }
1428
1429     if (!(hwnd = WIN_IsCurrentThread( hwnd ))) return;
1430
1431     if( hwnd == hwndPrevActive )
1432         hwndPrevActive = 0;
1433
1434     if( hwndActive != hwnd && (hwndActive || USER_IsExitingThread( GetCurrentThreadId() )))
1435         return;
1436
1437     if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_POPUP) ||
1438         !(owner = GetWindow( hwnd, GW_OWNER )) ||
1439         !WINPOS_CanActivate((hwndTo = GetAncestor( owner, GA_ROOT ))) ||
1440         !WINPOS_IsVisible(hwndTo))
1441     {
1442         HWND tmp = GetAncestor( hwnd, GA_ROOT );
1443         hwndTo = hwndPrevActive;
1444
1445         while( !WINPOS_CanActivate(hwndTo) || !WINPOS_IsVisible(hwndTo))
1446         {
1447             /* by now owned windows should've been taken care of */
1448             if(!hwndDefaultTo && WINPOS_CanActivate(hwndTo))
1449                 hwndDefaultTo = hwndTo;
1450             tmp = hwndTo = GetWindow( tmp, GW_HWNDNEXT );
1451             if( !hwndTo )
1452             {
1453                 hwndTo = hwndDefaultTo;
1454                 break;
1455             }
1456         }
1457     }
1458
1459     SetActiveWindow( hwndTo );
1460     hwndPrevActive = 0;
1461 }
1462
1463
1464 /***********************************************************************
1465  *           WINPOS_HandleWindowPosChanging16
1466  *
1467  * Default handling for a WM_WINDOWPOSCHANGING. Called from DefWindowProc().
1468  */
1469 LONG WINPOS_HandleWindowPosChanging16( HWND hwnd, WINDOWPOS16 *winpos )
1470 {
1471     POINT maxSize, minTrack;
1472     LONG style = GetWindowLongA( hwnd, GWL_STYLE );
1473
1474     if (winpos->flags & SWP_NOSIZE) return 0;
1475     if ((style & WS_THICKFRAME) || ((style & (WS_POPUP | WS_CHILD)) == 0))
1476     {
1477         WINPOS_GetMinMaxInfo( hwnd, &maxSize, NULL, &minTrack, NULL );
1478         if (maxSize.x < winpos->cx) winpos->cx = maxSize.x;
1479         if (maxSize.y < winpos->cy) winpos->cy = maxSize.y;
1480         if (!(style & WS_MINIMIZE))
1481         {
1482             if (winpos->cx < minTrack.x ) winpos->cx = minTrack.x;
1483             if (winpos->cy < minTrack.y ) winpos->cy = minTrack.y;
1484         }
1485     }
1486     return 0;
1487 }
1488
1489
1490 /***********************************************************************
1491  *           WINPOS_HandleWindowPosChanging
1492  *
1493  * Default handling for a WM_WINDOWPOSCHANGING. Called from DefWindowProc().
1494  */
1495 LONG WINPOS_HandleWindowPosChanging( HWND hwnd, WINDOWPOS *winpos )
1496 {
1497     POINT maxSize, minTrack;
1498     LONG style = GetWindowLongA( hwnd, GWL_STYLE );
1499
1500     if (winpos->flags & SWP_NOSIZE) return 0;
1501     if ((style & WS_THICKFRAME) || ((style & (WS_POPUP | WS_CHILD)) == 0))
1502     {
1503         WINPOS_GetMinMaxInfo( hwnd, &maxSize, NULL, &minTrack, NULL );
1504         winpos->cx = min( winpos->cx, maxSize.x );
1505         winpos->cy = min( winpos->cy, maxSize.y );
1506         if (!(style & WS_MINIMIZE))
1507         {
1508             if (winpos->cx < minTrack.x ) winpos->cx = minTrack.x;
1509             if (winpos->cy < minTrack.y ) winpos->cy = minTrack.y;
1510         }
1511     }
1512     return 0;
1513 }
1514
1515
1516 /***********************************************************************
1517  *              SetWindowPos (USER32.@)
1518  */
1519 BOOL WINAPI SetWindowPos( HWND hwnd, HWND hwndInsertAfter,
1520                           INT x, INT y, INT cx, INT cy, UINT flags )
1521 {
1522     WINDOWPOS winpos;
1523
1524     winpos.hwnd = hwnd;
1525     winpos.hwndInsertAfter = hwndInsertAfter;
1526     winpos.x = x;
1527     winpos.y = y;
1528     winpos.cx = cx;
1529     winpos.cy = cy;
1530     winpos.flags = flags;
1531     if (WIN_IsCurrentThread( hwnd )) return USER_Driver.pSetWindowPos( &winpos );
1532     return SendMessageW( winpos.hwnd, WM_WINE_SETWINDOWPOS, 0, (LPARAM)&winpos );
1533 }
1534
1535
1536 /***********************************************************************
1537  *              BeginDeferWindowPos (USER32.@)
1538  */
1539 HDWP WINAPI BeginDeferWindowPos( INT count )
1540 {
1541     HDWP handle;
1542     DWP *pDWP;
1543
1544     if (count < 0)
1545     {
1546         SetLastError(ERROR_INVALID_PARAMETER);
1547         return 0;
1548     }
1549     /* Windows allows zero count, in which case it allocates context for 8 moves */
1550     if (count == 0) count = 8;
1551
1552     handle = USER_HEAP_ALLOC( sizeof(DWP) + (count-1)*sizeof(WINDOWPOS) );
1553     if (!handle) return 0;
1554     pDWP = (DWP *) USER_HEAP_LIN_ADDR( handle );
1555     pDWP->actualCount    = 0;
1556     pDWP->suggestedCount = count;
1557     pDWP->valid          = TRUE;
1558     pDWP->wMagic         = DWP_MAGIC;
1559     pDWP->hwndParent     = 0;
1560     return handle;
1561 }
1562
1563
1564 /***********************************************************************
1565  *              DeferWindowPos (USER32.@)
1566  */
1567 HDWP WINAPI DeferWindowPos( HDWP hdwp, HWND hwnd, HWND hwndAfter,
1568                                 INT x, INT y, INT cx, INT cy,
1569                                 UINT flags )
1570 {
1571     DWP *pDWP;
1572     int i;
1573     HDWP newhdwp = hdwp,retvalue;
1574
1575     hwnd = WIN_GetFullHandle( hwnd );
1576     if (hwnd == GetDesktopWindow()) return 0;
1577
1578     if (!(pDWP = USER_HEAP_LIN_ADDR( hdwp ))) return 0;
1579
1580     USER_Lock();
1581
1582     for (i = 0; i < pDWP->actualCount; i++)
1583     {
1584         if (pDWP->winPos[i].hwnd == hwnd)
1585         {
1586               /* Merge with the other changes */
1587             if (!(flags & SWP_NOZORDER))
1588             {
1589                 pDWP->winPos[i].hwndInsertAfter = hwndAfter;
1590             }
1591             if (!(flags & SWP_NOMOVE))
1592             {
1593                 pDWP->winPos[i].x = x;
1594                 pDWP->winPos[i].y = y;
1595             }
1596             if (!(flags & SWP_NOSIZE))
1597             {
1598                 pDWP->winPos[i].cx = cx;
1599                 pDWP->winPos[i].cy = cy;
1600             }
1601             pDWP->winPos[i].flags &= flags | ~(SWP_NOSIZE | SWP_NOMOVE |
1602                                                SWP_NOZORDER | SWP_NOREDRAW |
1603                                                SWP_NOACTIVATE | SWP_NOCOPYBITS|
1604                                                SWP_NOOWNERZORDER);
1605             pDWP->winPos[i].flags |= flags & (SWP_SHOWWINDOW | SWP_HIDEWINDOW |
1606                                               SWP_FRAMECHANGED);
1607             retvalue = hdwp;
1608             goto END;
1609         }
1610     }
1611     if (pDWP->actualCount >= pDWP->suggestedCount)
1612     {
1613         newhdwp = USER_HEAP_REALLOC( hdwp,
1614                       sizeof(DWP) + pDWP->suggestedCount*sizeof(WINDOWPOS) );
1615         if (!newhdwp)
1616         {
1617             retvalue = 0;
1618             goto END;
1619         }
1620         pDWP = (DWP *) USER_HEAP_LIN_ADDR( newhdwp );
1621         pDWP->suggestedCount++;
1622     }
1623     pDWP->winPos[pDWP->actualCount].hwnd = hwnd;
1624     pDWP->winPos[pDWP->actualCount].hwndInsertAfter = hwndAfter;
1625     pDWP->winPos[pDWP->actualCount].x = x;
1626     pDWP->winPos[pDWP->actualCount].y = y;
1627     pDWP->winPos[pDWP->actualCount].cx = cx;
1628     pDWP->winPos[pDWP->actualCount].cy = cy;
1629     pDWP->winPos[pDWP->actualCount].flags = flags;
1630     pDWP->actualCount++;
1631     retvalue = newhdwp;
1632 END:
1633     USER_Unlock();
1634     return retvalue;
1635 }
1636
1637
1638 /***********************************************************************
1639  *              EndDeferWindowPos (USER32.@)
1640  */
1641 BOOL WINAPI EndDeferWindowPos( HDWP hdwp )
1642 {
1643     DWP *pDWP;
1644     WINDOWPOS *winpos;
1645     BOOL res = TRUE;
1646     int i;
1647
1648     pDWP = (DWP *) USER_HEAP_LIN_ADDR( hdwp );
1649     if (!pDWP) return FALSE;
1650     for (i = 0, winpos = pDWP->winPos; i < pDWP->actualCount; i++, winpos++)
1651     {
1652         if (!(res = USER_Driver.pSetWindowPos( winpos ))) break;
1653     }
1654     USER_HEAP_FREE( hdwp );
1655     return res;
1656 }
1657
1658
1659 /***********************************************************************
1660  *              TileChildWindows (USER.199)
1661  */
1662 void WINAPI TileChildWindows16( HWND16 parent, WORD action )
1663 {
1664     FIXME("(%04x, %d): stub\n", parent, action);
1665 }
1666
1667 /***********************************************************************
1668  *              CascadeChildWindows (USER.198)
1669  */
1670 void WINAPI CascadeChildWindows16( HWND16 parent, WORD action )
1671 {
1672     FIXME("(%04x, %d): stub\n", parent, action);
1673 }
1674
1675 /***********************************************************************
1676  *              SetProgmanWindow (USER32.@)
1677  */
1678 HWND WINAPI SetProgmanWindow ( HWND hwnd )
1679 {
1680         hGlobalProgmanWindow = hwnd;
1681         return hGlobalProgmanWindow;
1682 }
1683
1684 /***********************************************************************
1685  *              GetProgmanWindow (USER32.@)
1686  */
1687 HWND WINAPI GetProgmanWindow(void)
1688 {
1689         return hGlobalProgmanWindow;
1690 }
1691
1692 /***********************************************************************
1693  *              SetShellWindowEx (USER32.@)
1694  * hwndProgman =  Progman[Program Manager]
1695  *                |-> SHELLDLL_DefView
1696  * hwndListView = |   |-> SysListView32
1697  *                |   |   |-> tooltips_class32
1698  *                |   |
1699  *                |   |-> SysHeader32
1700  *                |
1701  *                |-> ProxyTarget
1702  */
1703 HWND WINAPI SetShellWindowEx ( HWND hwndProgman, HWND hwndListView )
1704 {
1705         FIXME("0x%08x 0x%08x stub\n",hwndProgman ,hwndListView );
1706         hGlobalShellWindow = hwndProgman;
1707         return hGlobalShellWindow;
1708
1709 }
1710
1711 /***********************************************************************
1712  *              SetTaskmanWindow (USER32.@)
1713  * NOTES
1714  *   hwnd = MSTaskSwWClass
1715  *          |-> SysTabControl32
1716  */
1717 HWND WINAPI SetTaskmanWindow ( HWND hwnd )
1718 {
1719         hGlobalTaskmanWindow = hwnd;
1720         return hGlobalTaskmanWindow;
1721 }
1722
1723 /***********************************************************************
1724  *              GetTaskmanWindow (USER32.@)
1725  */
1726 HWND WINAPI GetTaskmanWindow(void)
1727 {
1728         return hGlobalTaskmanWindow;
1729 }