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
   8 #include <string.h>
   9 #include "winerror.h"
  10 #include "windef.h"
  11 #include "wingdi.h"
  12 #include "winerror.h"
  13 #include "wine/winuser16.h"
  14 #include "controls.h"
  15 #include "user.h"
  16 #include "region.h"
  17 #include "win.h"
  18 #include "hook.h"
  19 #include "message.h"
  20 #include "queue.h"
  21 #include "winpos.h"
  22 #include "dce.h"
  23 #include "nonclient.h"
  24 #include "debugtools.h"
  25 #include "input.h"
  26
  27 DEFAULT_DEBUG_CHANNEL(win);
  28
  29 #define HAS_DLGFRAME(style,exStyle) \
  30     (((exStyle) & WS_EX_DLGMODALFRAME) || \
  31      (((style) & WS_DLGFRAME) && !((style) & WS_BORDER)))
  32
  33 #define HAS_THICKFRAME(style) \
  34     (((style) & WS_THICKFRAME) && \
  35      !(((style) & (WS_DLGFRAME|WS_BORDER)) == WS_DLGFRAME))
  36
  37 #define EMPTYPOINT(pt)          ((*(LONG*)&(pt)) == -1)
  38
  39 #define PLACE_MIN               0x0001
  40 #define PLACE_MAX               0x0002
  41 #define PLACE_RECT              0x0004
  42
  43
  44 #define DWP_MAGIC  ((INT)('W' | ('P' << 8) | ('O' << 16) | ('S' << 24)))
  45
  46 typedef struct
  47 {
  48     INT       actualCount;
  49     INT       suggestedCount;
  50     BOOL      valid;
  51     INT       wMagic;
  52     HWND      hwndParent;
  53     WINDOWPOS winPos[1];
  54 } DWP;
  55
  56 /* ----- internal variables ----- */
  57
  58 static HWND hwndPrevActive  = 0;  /* Previously active window */
  59 static HWND hGlobalShellWindow=0; /*the shell*/
  60 static HWND hGlobalTaskmanWindow=0;
  61 static HWND hGlobalProgmanWindow=0;
  62
  63 static LPCSTR atomInternalPos;
  64
  65 extern HQUEUE16 hActiveQueue;
  66
  67 /***********************************************************************
  68  *           WINPOS_CreateInternalPosAtom
  69  */
  70 BOOL WINPOS_CreateInternalPosAtom()
  71 {
  72     LPSTR str = "SysIP";
  73     atomInternalPos = (LPCSTR)(DWORD)GlobalAddAtomA(str);
  74     return (atomInternalPos) ? TRUE : FALSE;
  75 }
  76
  77 /***********************************************************************
  78  *           WINPOS_CheckInternalPos
  79  *
  80  * Called when a window is destroyed.
  81  */
  82 void WINPOS_CheckInternalPos( HWND hwnd )
  83 {
  84     LPINTERNALPOS lpPos;
  85     MESSAGEQUEUE *pMsgQ = 0;
  86     WND *wndPtr = WIN_FindWndPtr( hwnd );
  87
  88     lpPos = (LPINTERNALPOS) GetPropA( hwnd, atomInternalPos );
  89
  90     /* Retrieve the message queue associated with this window */
  91     pMsgQ = (MESSAGEQUEUE *)QUEUE_Lock( wndPtr->hmemTaskQ );
  92     if ( !pMsgQ )
  93     {
  94         WARN("\tMessage queue not found. Exiting!\n" );
  95         WIN_ReleaseWndPtr( wndPtr );
  96         return;
  97     }
  98
  99     if( hwnd == hwndPrevActive ) hwndPrevActive = 0;
 100
 101     if( hwnd == PERQDATA_GetActiveWnd( pMsgQ->pQData ) )
 102     {
 103         PERQDATA_SetActiveWnd( pMsgQ->pQData, 0 );
 104         WARN("\tattempt to activate destroyed window!\n");
 105     }
 106
 107     if( lpPos )
 108     {
 109         if( IsWindow(lpPos->hwndIconTitle) )
 110             DestroyWindow( lpPos->hwndIconTitle );
 111         HeapFree( GetProcessHeap(), 0, lpPos );
 112     }
 113
 114     QUEUE_Unlock( pMsgQ );
 115     WIN_ReleaseWndPtr( wndPtr );
 116     return;
 117 }
 118
 119 /***********************************************************************
 120  *              ArrangeIconicWindows (USER32.@)
 121  */
 122 UINT WINAPI ArrangeIconicWindows( HWND parent )
 123 {
 124     RECT rectParent;
 125     HWND hwndChild;
 126     INT x, y, xspacing, yspacing;
 127
 128     GetClientRect( parent, &rectParent );
 129     x = rectParent.left;
 130     y = rectParent.bottom;
 131     xspacing = GetSystemMetrics(SM_CXICONSPACING);
 132     yspacing = GetSystemMetrics(SM_CYICONSPACING);
 133
 134     hwndChild = GetWindow( parent, GW_CHILD );
 135     while (hwndChild)
 136     {
 137         if( IsIconic( hwndChild ) )
 138         {
 139             WINPOS_ShowIconTitle( hwndChild, FALSE );
 140
 141             SetWindowPos( hwndChild, 0, x + (xspacing - GetSystemMetrics(SM_CXICON)) / 2,
 142                             y - yspacing - GetSystemMetrics(SM_CYICON)/2, 0, 0,
 143                             SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
 144             if( IsWindow(hwndChild) )
 145                 WINPOS_ShowIconTitle(hwndChild , TRUE );
 146
 147             if (x <= rectParent.right - xspacing) x += xspacing;
 148             else
 149             {
 150                 x = rectParent.left;
 151                 y -= yspacing;
 152             }
 153         }
 154         hwndChild = GetWindow( hwndChild, GW_HWNDNEXT );
 155     }
 156     return yspacing;
 157 }
 158
 159
 160 /***********************************************************************
 161  *              SwitchToThisWindow (USER32.@)
 162  */
 163 void WINAPI SwitchToThisWindow( HWND hwnd, BOOL restore )
 164 {
 165     ShowWindow( hwnd, restore ? SW_RESTORE : SW_SHOWMINIMIZED );
 166 }
 167
 168
 169 /***********************************************************************
 170  *              GetWindowRect (USER32.@)
 171  */
 172 BOOL WINAPI GetWindowRect( HWND hwnd, LPRECT rect )
 173 {
 174     WND * wndPtr = WIN_FindWndPtr( hwnd );
 175     if (!wndPtr) return FALSE;
 176     *rect = wndPtr->rectWindow;
 177     WIN_ReleaseWndPtr(wndPtr);
 178     MapWindowPoints( GetAncestor( hwnd, GA_PARENT ), 0, (POINT *)rect, 2 );
 179     TRACE("hwnd %04x (%d,%d)-(%d,%d)\n",
 180           hwnd, rect->left, rect->top, rect->right, rect->bottom);
 181     return TRUE;
 182 }
 183
 184
 185 /***********************************************************************
 186  *              GetWindowRgn (USER32.@)
 187  */
 188 int WINAPI GetWindowRgn ( HWND hwnd, HRGN hrgn )
 189 {
 190     int nRet = ERROR;
 191     WND *wndPtr = WIN_FindWndPtr( hwnd );
 192     if (wndPtr)
 193     {
 194         if (wndPtr->hrgnWnd) nRet = CombineRgn( hrgn, wndPtr->hrgnWnd, 0, RGN_COPY );
 195         WIN_ReleaseWndPtr(wndPtr);
 196     }
 197     return nRet;
 198 }
 199
 200 /***********************************************************************
 201  *              SetWindowRgn (USER32.@)
 202  */
 203 int WINAPI SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL bRedraw )
 204 {
 205     RECT rect;
 206     WND *wndPtr;
 207     int ret = FALSE;
 208
 209     if (USER_Driver.pSetWindowRgn)
 210         return USER_Driver.pSetWindowRgn( hwnd, hrgn, bRedraw );
 211
 212     if (!(wndPtr = WIN_FindWndPtr(hwnd))) return FALSE;
 213
 214     if (wndPtr->hrgnWnd == hrgn)
 215     {
 216         ret = TRUE;
 217         goto done;
 218     }
 219
 220     if (hrgn) /* verify that region really exists */
 221     {
 222         if (GetRgnBox( hrgn, &rect ) == ERROR) goto done;
 223     }
 224
 225     if (wndPtr->hrgnWnd)
 226     {
 227         /* delete previous region */
 228         DeleteObject(wndPtr->hrgnWnd);
 229         wndPtr->hrgnWnd = 0;
 230     }
 231     wndPtr->hrgnWnd = hrgn;
 232
 233     /* Size the window to the rectangle of the new region (if it isn't NULL) */
 234     if (hrgn) SetWindowPos( hwnd, 0, rect.left, rect.top,
 235                             rect.right  - rect.left, rect.bottom - rect.top,
 236                             SWP_NOSIZE | SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOACTIVATE |
 237                             SWP_NOZORDER | (bRedraw ? 0 : SWP_NOREDRAW) );
 238     ret = TRUE;
 239
 240  done:
 241     WIN_ReleaseWndPtr(wndPtr);
 242     return ret;
 243 }
 244
 245
 246 /***********************************************************************
 247  *              GetClientRect (USER32.@)
 248  */
 249 BOOL WINAPI GetClientRect( HWND hwnd, LPRECT rect )
 250 {
 251     WND * wndPtr = WIN_FindWndPtr( hwnd );
 252
 253     rect->left = rect->top = rect->right = rect->bottom = 0;
 254     if (!wndPtr) return FALSE;
 255     rect->right  = wndPtr->rectClient.right - wndPtr->rectClient.left;
 256     rect->bottom = wndPtr->rectClient.bottom - wndPtr->rectClient.top;
 257
 258     WIN_ReleaseWndPtr(wndPtr);
 259     TRACE("hwnd %04x (%d,%d)-(%d,%d)\n",
 260           hwnd, rect->left, rect->top, rect->right, rect->bottom);
 261     return TRUE;
 262 }
 263
 264
 265 /*******************************************************************
 266  *              ClientToScreen (USER32.@)
 267  */
 268 BOOL WINAPI ClientToScreen( HWND hwnd, LPPOINT lppnt )
 269 {
 270     MapWindowPoints( hwnd, 0, lppnt, 1 );
 271     return TRUE;
 272 }
 273
 274
 275 /*******************************************************************
 276  *              ScreenToClient (USER32.@)
 277  */
 278 BOOL WINAPI ScreenToClient( HWND hwnd, LPPOINT lppnt )
 279 {
 280     MapWindowPoints( 0, hwnd, lppnt, 1 );
 281     return TRUE;
 282 }
 283
 284
 285 /***********************************************************************
 286  *           WINPOS_WindowFromPoint
 287  *
 288  * Find the window and hittest for a given point.
 289  */
 290 HWND WINPOS_WindowFromPoint( HWND hwndScope, POINT pt, INT *hittest )
 291 {
 292     WND *wndScope, *wndPtr, *wndTmp;
 293     HWND hwnd_ret = 0;
 294     POINT xy = pt;
 295
 296     TRACE("scope %04x %ld,%ld\n", hwndScope, pt.x, pt.y);
 297
 298     if (!hwndScope) hwndScope = GetDesktopWindow();
 299     if (!(wndScope = WIN_FindWndPtr( hwndScope ))) return 0;
 300     hwndScope = wndScope->hwndSelf;  /* make it a full handle */
 301
 302     *hittest = HTERROR;
 303     wndPtr = WIN_LockWndPtr(wndScope->child);
 304
 305     if( wndScope->dwStyle & WS_DISABLED )
 306     {
 307         *hittest = HTERROR;
 308         goto end;
 309     }
 310
 311     if (wndScope->parent)
 312         MapWindowPoints( GetDesktopWindow(), wndScope->parent->hwndSelf, &xy, 1 );
 313
 314     if (xy.x < wndScope->rectClient.left || pt.x >= wndScope->rectClient.right ||
 315         xy.y < wndScope->rectClient.top || pt.y >= wndScope->rectClient.bottom ||
 316         wndScope->dwStyle & WS_MINIMIZE)
 317         goto hittest;
 318
 319     xy.x -= wndScope->rectClient.left;
 320     xy.y -= wndScope->rectClient.top;
 321
 322     for (;;)
 323     {
 324         while (wndPtr)
 325         {
 326             /* If point is in window, and window is visible, and it  */
 327             /* is enabled (or it's a top-level window), then explore */
 328             /* its children. Otherwise, go to the next window.       */
 329
 330              if ((wndPtr->dwStyle & WS_VISIBLE) &&
 331                 ((wndPtr->dwExStyle & (WS_EX_LAYERED | WS_EX_TRANSPARENT)) != (WS_EX_LAYERED | WS_EX_TRANSPARENT)) &&
 332                 (!(wndPtr->dwStyle & WS_DISABLED) ||
 333                  ((wndPtr->dwStyle & (WS_POPUP | WS_CHILD)) != WS_CHILD)) &&
 334                 (wndPtr->hrgnWnd ?
 335                 PtInRegion(wndPtr->hrgnWnd, xy.x - wndPtr->rectWindow.left,
 336                            xy.y - wndPtr->rectWindow.top) :
 337                 ((xy.x >= wndPtr->rectWindow.left) &&
 338                  (xy.x < wndPtr->rectWindow.right) &&
 339                  (xy.y >= wndPtr->rectWindow.top) &&
 340                  (xy.y < wndPtr->rectWindow.bottom))))
 341             {
 342                 TRACE("%ld,%ld is inside %04x\n", xy.x, xy.y, wndPtr->hwndSelf);
 343                 hwnd_ret = wndPtr->hwndSelf;  /* Got a suitable window */
 344
 345                 /* If window is minimized or disabled, return at once */
 346                 if (wndPtr->dwStyle & WS_MINIMIZE)
 347                 {
 348                     *hittest = HTCAPTION;
 349                     goto end;
 350                 }
 351                 if (wndPtr->dwStyle & WS_DISABLED)
 352                 {
 353                     *hittest = HTERROR;
 354                     goto end;
 355                 }
 356
 357                 /* If point is not in client area, ignore the children */
 358                 if ((xy.x < wndPtr->rectClient.left) ||
 359                     (xy.x >= wndPtr->rectClient.right) ||
 360                     (xy.y < wndPtr->rectClient.top) ||
 361                     (xy.y >= wndPtr->rectClient.bottom)) break;
 362
 363                 xy.x -= wndPtr->rectClient.left;
 364                 xy.y -= wndPtr->rectClient.top;
 365                 WIN_UpdateWndPtr(&wndPtr,wndPtr->child);
 366             }
 367             else
 368             {
 369                 WIN_UpdateWndPtr(&wndPtr,wndPtr->next);
 370             }
 371         }
 372
 373 hittest:
 374         /* If nothing found, try the scope window */
 375         if (!hwnd_ret) hwnd_ret = hwndScope;
 376
 377         /* Send the WM_NCHITTEST message (only if to the same task) */
 378         if (WIN_IsCurrentThread( hwnd_ret ))
 379         {
 380             INT res = SendMessageA( hwnd_ret, WM_NCHITTEST, 0, MAKELONG( pt.x, pt.y ) );
 381             if (res != HTTRANSPARENT)
 382             {
 383                 *hittest = res;  /* Found the window */
 384                 goto end;
 385             }
 386         }
 387         else
 388         {
 389             *hittest = HTCLIENT;
 390             goto end;
 391         }
 392
 393         if (!(wndTmp = WIN_FindWndPtr( hwnd_ret ))) break;
 394
 395         /* If no children found in last search, make point relative to parent */
 396         if (!wndPtr)
 397         {
 398             xy.x += wndTmp->rectClient.left;
 399             xy.y += wndTmp->rectClient.top;
 400         }
 401
 402         /* Restart the search from the next sibling */
 403         WIN_UpdateWndPtr(&wndPtr,wndTmp->next);
 404         hwnd_ret = wndTmp->parent ? wndTmp->parent->hwndSelf : 0;
 405         WIN_ReleaseWndPtr( wndTmp );
 406     }
 407
 408 end:
 409     WIN_ReleaseWndPtr(wndPtr);
 410     WIN_ReleaseWndPtr(wndScope);
 411     return hwnd_ret;
 412 }
 413
 414
 415 /*******************************************************************
 416  *              WindowFromPoint (USER32.@)
 417  */
 418 HWND WINAPI WindowFromPoint( POINT pt )
 419 {
 420     INT hittest;
 421     return WINPOS_WindowFromPoint( 0, pt, &hittest );
 422 }
 423
 424
 425 /*******************************************************************
 426  *              ChildWindowFromPoint (USER32.@)
 427  */
 428 HWND WINAPI ChildWindowFromPoint( HWND hwndParent, POINT pt )
 429 {
 430     return ChildWindowFromPointEx( hwndParent, pt, CWP_ALL );
 431 }
 432
 433 /*******************************************************************
 434  *              ChildWindowFromPointEx (USER32.@)
 435  */
 436 HWND WINAPI ChildWindowFromPointEx( HWND hwndParent, POINT pt, UINT uFlags)
 437 {
 438     /* pt is in the client coordinates */
 439     HWND *list;
 440     int i;
 441     RECT rect;
 442     HWND retvalue = 0;
 443
 444     GetClientRect( hwndParent, &rect );
 445     if (!PtInRect( &rect, pt )) return 0;
 446     if (!(list = WIN_ListChildren( hwndParent ))) return 0;
 447
 448     for (i = 0; list[i] && !retvalue; i++)
 449     {
 450         WND *wnd = WIN_FindWndPtr( list[i] );
 451         if (!wnd) continue;
 452         if (PtInRect( &wnd->rectWindow, pt ))
 453         {
 454             if ( (uFlags & CWP_SKIPINVISIBLE) &&
 455                  !(wnd->dwStyle & WS_VISIBLE) );
 456             else if ( (uFlags & CWP_SKIPDISABLED) &&
 457                       (wnd->dwStyle & WS_DISABLED) );
 458             else if ( (uFlags & CWP_SKIPTRANSPARENT) &&
 459                       (wnd->dwExStyle & WS_EX_TRANSPARENT) );
 460             else retvalue = list[i];
 461         }
 462         WIN_ReleaseWndPtr( wnd );
 463     }
 464     HeapFree( GetProcessHeap(), 0, list );
 465     if (!retvalue) retvalue = hwndParent;
 466     return retvalue;
 467 }
 468
 469
 470 /*******************************************************************
 471  *         WINPOS_GetWinOffset
 472  *
 473  * Calculate the offset between the origin of the two windows. Used
 474  * to implement MapWindowPoints.
 475  */
 476 static void WINPOS_GetWinOffset( HWND hwndFrom, HWND hwndTo,
 477                                  POINT *offset )
 478 {
 479     WND * wndPtr = 0;
 480
 481     offset->x = offset->y = 0;
 482     if (hwndFrom == hwndTo ) return;
 483
 484       /* Translate source window origin to screen coords */
 485     if (hwndFrom)
 486     {
 487         if (!(wndPtr = WIN_FindWndPtr( hwndFrom )))
 488         {
 489             ERR("bad hwndFrom = %04x\n",hwndFrom);
 490             return;
 491         }
 492         while (wndPtr->parent)
 493         {
 494             offset->x += wndPtr->rectClient.left;
 495             offset->y += wndPtr->rectClient.top;
 496             WIN_UpdateWndPtr(&wndPtr,wndPtr->parent);
 497         }
 498         WIN_ReleaseWndPtr(wndPtr);
 499     }
 500
 501       /* Translate origin to destination window coords */
 502     if (hwndTo)
 503     {
 504         if (!(wndPtr = WIN_FindWndPtr( hwndTo )))
 505         {
 506             ERR("bad hwndTo = %04x\n", hwndTo );
 507             return;
 508         }
 509         while (wndPtr->parent)
 510         {
 511             offset->x -= wndPtr->rectClient.left;
 512             offset->y -= wndPtr->rectClient.top;
 513             WIN_UpdateWndPtr(&wndPtr,wndPtr->parent);
 514         }
 515         WIN_ReleaseWndPtr(wndPtr);
 516     }
 517 }
 518
 519
 520 /*******************************************************************
 521  *              MapWindowPoints (USER.258)
 522  */
 523 void WINAPI MapWindowPoints16( HWND16 hwndFrom, HWND16 hwndTo,
 524                                LPPOINT16 lppt, UINT16 count )
 525 {
 526     POINT offset;
 527
 528     WINPOS_GetWinOffset( WIN_Handle32(hwndFrom), WIN_Handle32(hwndTo), &offset );
 529     while (count--)
 530     {
 531         lppt->x += offset.x;
 532         lppt->y += offset.y;
 533         lppt++;
 534     }
 535 }
 536
 537
 538 /*******************************************************************
 539  *              MapWindowPoints (USER32.@)
 540  */
 541 INT WINAPI MapWindowPoints( HWND hwndFrom, HWND hwndTo,
 542                                LPPOINT lppt, UINT count )
 543 {
 544     POINT offset;
 545
 546     WINPOS_GetWinOffset( WIN_GetFullHandle(hwndFrom), WIN_GetFullHandle(hwndTo), &offset );
 547     while (count--)
 548     {
 549         lppt->x += offset.x;
 550         lppt->y += offset.y;
 551         lppt++;
 552     }
 553     return MAKELONG( LOWORD(offset.x), LOWORD(offset.y) );
 554 }
 555
 556
 557 /***********************************************************************
 558  *              IsIconic (USER32.@)
 559  */
 560 BOOL WINAPI IsIconic(HWND hWnd)
 561 {
 562     BOOL retvalue;
 563     WND * wndPtr = WIN_FindWndPtr(hWnd);
 564     if (wndPtr == NULL) return FALSE;
 565     retvalue = (wndPtr->dwStyle & WS_MINIMIZE) != 0;
 566     WIN_ReleaseWndPtr(wndPtr);
 567     return retvalue;
 568 }
 569
 570
 571 /***********************************************************************
 572  *              IsZoomed (USER32.@)
 573  */
 574 BOOL WINAPI IsZoomed(HWND hWnd)
 575 {
 576     BOOL retvalue;
 577     WND * wndPtr = WIN_FindWndPtr(hWnd);
 578     if (wndPtr == NULL) return FALSE;
 579     retvalue = (wndPtr->dwStyle & WS_MAXIMIZE) != 0;
 580     WIN_ReleaseWndPtr(wndPtr);
 581     return retvalue;
 582 }
 583
 584
 585 /*******************************************************************
 586  *              GetActiveWindow (USER32.@)
 587  */
 588 HWND WINAPI GetActiveWindow(void)
 589 {
 590     MESSAGEQUEUE *pCurMsgQ = 0;
 591
 592     /* Get the messageQ for the current thread */
 593     if (!(pCurMsgQ = QUEUE_Current()))
 594 {
 595         WARN("\tCurrent message queue not found. Exiting!\n" );
 596         return 0;
 597     }
 598
 599     /* Return the current active window from the perQ data of the current message Q */
 600     return PERQDATA_GetActiveWnd( pCurMsgQ->pQData );
 601 }
 602
 603
 604 /*******************************************************************
 605  *         WINPOS_CanActivate
 606  */
 607 static BOOL WINPOS_CanActivate(HWND hwnd)
 608 {
 609     if (!hwnd) return FALSE;
 610     return ((GetWindowLongW( hwnd, GWL_STYLE ) & (WS_DISABLED|WS_VISIBLE|WS_CHILD)) == WS_VISIBLE);
 611 }
 612
 613
 614 /*******************************************************************
 615  *              SetActiveWindow (USER32.@)
 616  */
 617 HWND WINAPI SetActiveWindow( HWND hwnd )
 618 {
 619     HWND prev = 0;
 620     WND *wndPtr = WIN_FindWndPtr( hwnd );
 621     MESSAGEQUEUE *pMsgQ = 0, *pCurMsgQ = 0;
 622
 623     if (!wndPtr) return 0;
 624
 625     if (wndPtr->dwStyle & (WS_DISABLED | WS_CHILD)) goto error;
 626
 627     /* Get the messageQ for the current thread */
 628     if (!(pCurMsgQ = QUEUE_Current()))
 629     {
 630         WARN("\tCurrent message queue not found. Exiting!\n" );
 631         goto error;
 632     }
 633
 634     /* Retrieve the message queue associated with this window */
 635     pMsgQ = (MESSAGEQUEUE *)QUEUE_Lock( wndPtr->hmemTaskQ );
 636     if ( !pMsgQ )
 637     {
 638         WARN("\tWindow message queue not found. Exiting!\n" );
 639         goto error;
 640     }
 641
 642     /* Make sure that the window is associated with the calling threads
 643      * message queue. It must share the same perQ data.
 644      */
 645     if ( pCurMsgQ->pQData != pMsgQ->pQData )
 646     {
 647         QUEUE_Unlock( pMsgQ );
 648         goto error;
 649     }
 650
 651     /* Save current active window */
 652     prev = PERQDATA_GetActiveWnd( pMsgQ->pQData );
 653     QUEUE_Unlock( pMsgQ );
 654     WIN_ReleaseWndPtr(wndPtr);
 655     WINPOS_SetActiveWindow( hwnd, 0, 0 );
 656     return prev;
 657
 658  error:
 659     WIN_ReleaseWndPtr(wndPtr);
 660     return 0;
 661 }
 662
 663
 664 /*******************************************************************
 665  *              GetForegroundWindow (USER32.@)
 666  */
 667 HWND WINAPI GetForegroundWindow(void)
 668 {
 669     HWND hwndActive = 0;
 670
 671     /* Get the foreground window (active window of hActiveQueue) */
 672     if ( hActiveQueue )
 673     {
 674         MESSAGEQUEUE *pActiveQueue = QUEUE_Lock( hActiveQueue );
 675         if ( pActiveQueue )
 676             hwndActive = PERQDATA_GetActiveWnd( pActiveQueue->pQData );
 677
 678         QUEUE_Unlock( pActiveQueue );
 679     }
 680
 681     return hwndActive;
 682 }
 683
 684 /*******************************************************************
 685  *              SetForegroundWindow (USER32.@)
 686  */
 687 BOOL WINAPI SetForegroundWindow( HWND hwnd )
 688 {
 689     return WINPOS_ChangeActiveWindow( hwnd, FALSE );
 690 }
 691
 692
 693 /*******************************************************************
 694  *              AllowSetForegroundWindow (USER32.@)
 695  */
 696 BOOL WINAPI AllowSetForegroundWindow( DWORD procid )
 697 {
 698     /* FIXME: If Win98/2000 style SetForegroundWindow behavior is
 699      * implemented, then fix this function. */
 700     return TRUE;
 701 }
 702
 703
 704 /*******************************************************************
 705  *              LockSetForegroundWindow (USER32.@)
 706  */
 707 BOOL WINAPI LockSetForegroundWindow( UINT lockcode )
 708 {
 709     /* FIXME: If Win98/2000 style SetForegroundWindow behavior is
 710      * implemented, then fix this function. */
 711     return TRUE;
 712 }
 713
 714
 715 /*******************************************************************
 716  *              SetShellWindow (USER32.@)
 717  */
 718 HWND WINAPI SetShellWindow(HWND hwndshell)
 719 {   WARN("(hWnd=%08x) semi stub\n",hwndshell );
 720
 721     hGlobalShellWindow = WIN_GetFullHandle( hwndshell );
 722     return hGlobalShellWindow;
 723 }
 724
 725
 726 /*******************************************************************
 727  *              GetShellWindow (USER32.@)
 728  */
 729 HWND WINAPI GetShellWindow(void)
 730 {   WARN("(hWnd=%x) semi stub\n",hGlobalShellWindow );
 731
 732     return hGlobalShellWindow;
 733 }
 734
 735
 736 /***********************************************************************
 737  *              BringWindowToTop (USER32.@)
 738  */
 739 BOOL WINAPI BringWindowToTop( HWND hwnd )
 740 {
 741     return SetWindowPos( hwnd, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE );
 742 }
 743
 744
 745 /***********************************************************************
 746  *              MoveWindow (USER32.@)
 747  */
 748 BOOL WINAPI MoveWindow( HWND hwnd, INT x, INT y, INT cx, INT cy,
 749                             BOOL repaint )
 750 {
 751     int flags = SWP_NOZORDER | SWP_NOACTIVATE;
 752     if (!repaint) flags |= SWP_NOREDRAW;
 753     TRACE("%04x %d,%d %dx%d %d\n",
 754             hwnd, x, y, cx, cy, repaint );
 755     return SetWindowPos( hwnd, 0, x, y, cx, cy, flags );
 756 }
 757
 758 /***********************************************************************
 759  *           WINPOS_InitInternalPos
 760  */
 761 static LPINTERNALPOS WINPOS_InitInternalPos( WND* wnd, POINT pt,
 762                                              LPRECT restoreRect )
 763 {
 764     LPINTERNALPOS lpPos = (LPINTERNALPOS) GetPropA( wnd->hwndSelf,
 765                                                       atomInternalPos );
 766     if( !lpPos )
 767     {
 768         /* this happens when the window is minimized/maximized
 769          * for the first time (rectWindow is not adjusted yet) */
 770
 771         lpPos = HeapAlloc( GetProcessHeap(), 0, sizeof(INTERNALPOS) );
 772         if( !lpPos ) return NULL;
 773
 774         SetPropA( wnd->hwndSelf, atomInternalPos, (HANDLE)lpPos );
 775         lpPos->hwndIconTitle = 0; /* defer until needs to be shown */
 776         CONV_RECT32TO16( &wnd->rectWindow, &lpPos->rectNormal );
 777         *(UINT*)&lpPos->ptIconPos = *(UINT*)&lpPos->ptMaxPos = 0xFFFFFFFF;
 778     }
 779
 780     if( wnd->dwStyle & WS_MINIMIZE )
 781         CONV_POINT32TO16( &pt, &lpPos->ptIconPos );
 782     else if( wnd->dwStyle & WS_MAXIMIZE )
 783         CONV_POINT32TO16( &pt, &lpPos->ptMaxPos );
 784     else if( restoreRect )
 785         CONV_RECT32TO16( restoreRect, &lpPos->rectNormal );
 786
 787     return lpPos;
 788 }
 789
 790 /***********************************************************************
 791  *           WINPOS_RedrawIconTitle
 792  */
 793 BOOL WINPOS_RedrawIconTitle( HWND hWnd )
 794 {
 795     LPINTERNALPOS lpPos = (LPINTERNALPOS)GetPropA( hWnd, atomInternalPos );
 796     if( lpPos )
 797     {
 798         if( lpPos->hwndIconTitle )
 799         {
 800             SendMessageA( lpPos->hwndIconTitle, WM_SHOWWINDOW, TRUE, 0);
 801             InvalidateRect( lpPos->hwndIconTitle, NULL, TRUE );
 802             return TRUE;
 803         }
 804     }
 805     return FALSE;
 806 }
 807
 808 /***********************************************************************
 809  *           WINPOS_ShowIconTitle
 810  */
 811 BOOL WINPOS_ShowIconTitle( HWND hwnd, BOOL bShow )
 812 {
 813     LPINTERNALPOS lpPos = (LPINTERNALPOS)GetPropA( hwnd, atomInternalPos );
 814
 815     if( lpPos && !(GetWindowLongA( hwnd, GWL_EXSTYLE) & WS_EX_MANAGED))
 816     {
 817         HWND title = lpPos->hwndIconTitle;
 818
 819         TRACE("0x%04x %i\n", hwnd, (bShow != 0) );
 820
 821         if( !title )
 822             lpPos->hwndIconTitle = title = ICONTITLE_Create( hwnd );
 823         if( bShow )
 824         {
 825             if (!IsWindowVisible(title))
 826             {
 827                 SendMessageA( title, WM_SHOWWINDOW, TRUE, 0 );
 828                 SetWindowPos( title, 0, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE |
 829                               SWP_NOACTIVATE | SWP_NOZORDER | SWP_SHOWWINDOW );
 830             }
 831         }
 832         else ShowWindow( title, SW_HIDE );
 833     }
 834     return FALSE;
 835 }
 836
 837 /*******************************************************************
 838  *           WINPOS_GetMinMaxInfo
 839  *
 840  * Get the minimized and maximized information for a window.
 841  */
 842 void WINPOS_GetMinMaxInfo( HWND hwnd, POINT *maxSize, POINT *maxPos,
 843                            POINT *minTrack, POINT *maxTrack )
 844 {
 845     LPINTERNALPOS lpPos;
 846     MINMAXINFO MinMax;
 847     INT xinc, yinc;
 848     LONG style = GetWindowLongA( hwnd, GWL_STYLE );
 849     LONG exstyle = GetWindowLongA( hwnd, GWL_EXSTYLE );
 850
 851     /* Compute default values */
 852
 853     MinMax.ptMaxSize.x = GetSystemMetrics(SM_CXSCREEN);
 854     MinMax.ptMaxSize.y = GetSystemMetrics(SM_CYSCREEN);
 855     MinMax.ptMinTrackSize.x = GetSystemMetrics(SM_CXMINTRACK);
 856     MinMax.ptMinTrackSize.y = GetSystemMetrics(SM_CYMINTRACK);
 857     MinMax.ptMaxTrackSize.x = GetSystemMetrics(SM_CXSCREEN);
 858     MinMax.ptMaxTrackSize.y = GetSystemMetrics(SM_CYSCREEN);
 859
 860     if (HAS_DLGFRAME( style, exstyle ))
 861     {
 862         xinc = GetSystemMetrics(SM_CXDLGFRAME);
 863         yinc = GetSystemMetrics(SM_CYDLGFRAME);
 864     }
 865     else
 866     {
 867         xinc = yinc = 0;
 868         if (HAS_THICKFRAME(style))
 869         {
 870             xinc += GetSystemMetrics(SM_CXFRAME);
 871             yinc += GetSystemMetrics(SM_CYFRAME);
 872         }
 873         if (style & WS_BORDER)
 874         {
 875             xinc += GetSystemMetrics(SM_CXBORDER);
 876             yinc += GetSystemMetrics(SM_CYBORDER);
 877         }
 878     }
 879     MinMax.ptMaxSize.x += 2 * xinc;
 880     MinMax.ptMaxSize.y += 2 * yinc;
 881
 882     lpPos = (LPINTERNALPOS)GetPropA( hwnd, atomInternalPos );
 883     if( lpPos && !EMPTYPOINT(lpPos->ptMaxPos) )
 884         CONV_POINT16TO32( &lpPos->ptMaxPos, &MinMax.ptMaxPosition );
 885     else
 886     {
 887         MinMax.ptMaxPosition.x = -xinc;
 888         MinMax.ptMaxPosition.y = -yinc;
 889     }
 890
 891     SendMessageA( hwnd, WM_GETMINMAXINFO, 0, (LPARAM)&MinMax );
 892
 893       /* Some sanity checks */
 894
 895     TRACE("%ld %ld / %ld %ld / %ld %ld / %ld %ld\n",
 896                       MinMax.ptMaxSize.x, MinMax.ptMaxSize.y,
 897                       MinMax.ptMaxPosition.x, MinMax.ptMaxPosition.y,
 898                       MinMax.ptMaxTrackSize.x, MinMax.ptMaxTrackSize.y,
 899                       MinMax.ptMinTrackSize.x, MinMax.ptMinTrackSize.y);
 900     MinMax.ptMaxTrackSize.x = max( MinMax.ptMaxTrackSize.x,
 901                                    MinMax.ptMinTrackSize.x );
 902     MinMax.ptMaxTrackSize.y = max( MinMax.ptMaxTrackSize.y,
 903                                    MinMax.ptMinTrackSize.y );
 904
 905     if (maxSize) *maxSize = MinMax.ptMaxSize;
 906     if (maxPos) *maxPos = MinMax.ptMaxPosition;
 907     if (minTrack) *minTrack = MinMax.ptMinTrackSize;
 908     if (maxTrack) *maxTrack = MinMax.ptMaxTrackSize;
 909 }
 910
 911 /***********************************************************************
 912  *              ShowWindowAsync (USER32.@)
 913  *
 914  * doesn't wait; returns immediately.
 915  * used by threads to toggle windows in other (possibly hanging) threads
 916  */
 917 BOOL WINAPI ShowWindowAsync( HWND hwnd, INT cmd )
 918 {
 919     /* FIXME: does ShowWindow() return immediately ? */
 920     return ShowWindow(hwnd, cmd);
 921 }
 922
 923
 924 /***********************************************************************
 925  *              ShowWindow (USER32.@)
 926  */
 927 BOOL WINAPI ShowWindow( HWND hwnd, INT cmd )
 928 {
 929     return USER_Driver.pShowWindow( hwnd, cmd );
 930 }
 931
 932
 933 /***********************************************************************
 934  *              GetInternalWindowPos (USER.460)
 935  */
 936 UINT16 WINAPI GetInternalWindowPos16( HWND16 hwnd, LPRECT16 rectWnd,
 937                                       LPPOINT16 ptIcon )
 938 {
 939     WINDOWPLACEMENT16 wndpl;
 940     if (GetWindowPlacement16( hwnd, &wndpl ))
 941     {
 942         if (rectWnd) *rectWnd = wndpl.rcNormalPosition;
 943         if (ptIcon)  *ptIcon = wndpl.ptMinPosition;
 944         return wndpl.showCmd;
 945     }
 946     return 0;
 947 }
 948
 949
 950 /***********************************************************************
 951  *              GetInternalWindowPos (USER32.@)
 952  */
 953 UINT WINAPI GetInternalWindowPos( HWND hwnd, LPRECT rectWnd,
 954                                       LPPOINT ptIcon )
 955 {
 956     WINDOWPLACEMENT wndpl;
 957     if (GetWindowPlacement( hwnd, &wndpl ))
 958     {
 959         if (rectWnd) *rectWnd = wndpl.rcNormalPosition;
 960         if (ptIcon)  *ptIcon = wndpl.ptMinPosition;
 961         return wndpl.showCmd;
 962     }
 963     return 0;
 964 }
 965
 966
 967 /***********************************************************************
 968  *              GetWindowPlacement (USER32.@)
 969  *
 970  * Win95:
 971  * Fails if wndpl->length of Win95 (!) apps is invalid.
 972  */
 973 BOOL WINAPI GetWindowPlacement( HWND hwnd, WINDOWPLACEMENT *wndpl )
 974 {
 975     WND *pWnd = WIN_FindWndPtr( hwnd );
 976     LPINTERNALPOS lpPos;
 977
 978     if(!pWnd ) return FALSE;
 979
 980     lpPos = WINPOS_InitInternalPos( pWnd, *(LPPOINT)&pWnd->rectWindow.left, &pWnd->rectWindow );
 981     wndpl->length  = sizeof(*wndpl);
 982     if( pWnd->dwStyle & WS_MINIMIZE )
 983         wndpl->showCmd = SW_SHOWMINIMIZED;
 984     else
 985         wndpl->showCmd = ( pWnd->dwStyle & WS_MAXIMIZE ) ? SW_SHOWMAXIMIZED : SW_SHOWNORMAL ;
 986     if( pWnd->flags & WIN_RESTORE_MAX )
 987         wndpl->flags = WPF_RESTORETOMAXIMIZED;
 988     else
 989         wndpl->flags = 0;
 990     CONV_POINT16TO32( &lpPos->ptIconPos, &wndpl->ptMinPosition );
 991     CONV_POINT16TO32( &lpPos->ptMaxPos, &wndpl->ptMaxPosition );
 992     CONV_RECT16TO32( &lpPos->rectNormal, &wndpl->rcNormalPosition );
 993     WIN_ReleaseWndPtr(pWnd);
 994     return TRUE;
 995 }
 996
 997
 998 /***********************************************************************
 999  *           WINPOS_SetPlacement
1000  */
1001 static BOOL WINPOS_SetPlacement( HWND hwnd, const WINDOWPLACEMENT *wndpl, UINT flags )
1002 {
1003     WND *pWnd = WIN_FindWndPtr( hwnd );
1004     if( pWnd )
1005     {
1006         LPINTERNALPOS lpPos = (LPINTERNALPOS)WINPOS_InitInternalPos( pWnd,
1007                              *(LPPOINT)&pWnd->rectWindow.left, &pWnd->rectWindow );
1008
1009         if( flags & PLACE_MIN ) CONV_POINT32TO16( &wndpl->ptMinPosition, &lpPos->ptIconPos );
1010         if( flags & PLACE_MAX ) CONV_POINT32TO16( &wndpl->ptMaxPosition, &lpPos->ptMaxPos );
1011         if( flags & PLACE_RECT) CONV_RECT32TO16( &wndpl->rcNormalPosition, &lpPos->rectNormal );
1012
1013         if( pWnd->dwStyle & WS_MINIMIZE )
1014         {
1015             WINPOS_ShowIconTitle( pWnd->hwndSelf, FALSE );
1016             if( wndpl->flags & WPF_SETMINPOSITION && !EMPTYPOINT(lpPos->ptIconPos))
1017                 SetWindowPos( hwnd, 0, lpPos->ptIconPos.x, lpPos->ptIconPos.y,
1018                                 0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
1019         }
1020         else if( pWnd->dwStyle & WS_MAXIMIZE )
1021         {
1022             if( !EMPTYPOINT(lpPos->ptMaxPos) )
1023                 SetWindowPos( hwnd, 0, lpPos->ptMaxPos.x, lpPos->ptMaxPos.y,
1024                                 0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
1025         }
1026         else if( flags & PLACE_RECT )
1027                 SetWindowPos( hwnd, 0, lpPos->rectNormal.left, lpPos->rectNormal.top,
1028                                 lpPos->rectNormal.right - lpPos->rectNormal.left,
1029                                 lpPos->rectNormal.bottom - lpPos->rectNormal.top,
1030                                 SWP_NOZORDER | SWP_NOACTIVATE );
1031
1032         ShowWindow( hwnd, wndpl->showCmd );
1033         if( IsWindow(hwnd) && pWnd->dwStyle & WS_MINIMIZE )
1034         {
1035             if( pWnd->dwStyle & WS_VISIBLE ) WINPOS_ShowIconTitle( pWnd->hwndSelf, TRUE );
1036
1037             /* SDK: ...valid only the next time... */
1038             if( wndpl->flags & WPF_RESTORETOMAXIMIZED ) pWnd->flags |= WIN_RESTORE_MAX;
1039         }
1040         WIN_ReleaseWndPtr(pWnd);
1041         return TRUE;
1042     }
1043     return FALSE;
1044 }
1045
1046
1047 /***********************************************************************
1048  *              SetWindowPlacement (USER32.@)
1049  *
1050  * Win95:
1051  * Fails if wndpl->length of Win95 (!) apps is invalid.
1052  */
1053 BOOL WINAPI SetWindowPlacement( HWND hwnd, const WINDOWPLACEMENT *wpl )
1054 {
1055     if (!wpl) return FALSE;
1056     return WINPOS_SetPlacement( hwnd, wpl, PLACE_MIN | PLACE_MAX | PLACE_RECT );
1057 }
1058
1059
1060 /***********************************************************************
1061  *              AnimateWindow (USER32.@)
1062  *              Shows/Hides a window with an animation
1063  *              NO ANIMATION YET
1064  */
1065 BOOL WINAPI AnimateWindow(HWND hwnd, DWORD dwTime, DWORD dwFlags)
1066 {
1067         FIXME("partial stub\n");
1068
1069         /* If trying to show/hide and it's already   *
1070          * shown/hidden or invalid window, fail with *
1071          * invalid parameter                         */
1072         if(!IsWindow(hwnd) ||
1073            (IsWindowVisible(hwnd) && !(dwFlags & AW_HIDE)) ||
1074            (!IsWindowVisible(hwnd) && (dwFlags & AW_HIDE)))
1075         {
1076                 SetLastError(ERROR_INVALID_PARAMETER);
1077                 return FALSE;
1078         }
1079
1080         ShowWindow(hwnd, (dwFlags & AW_HIDE) ? SW_HIDE : ((dwFlags & AW_ACTIVATE) ? SW_SHOW : SW_SHOWNA));
1081
1082         return TRUE;
1083 }
1084
1085 /***********************************************************************
1086  *              SetInternalWindowPos (USER32.@)
1087  */
1088 void WINAPI SetInternalWindowPos( HWND hwnd, UINT showCmd,
1089                                     LPRECT rect, LPPOINT pt )
1090 {
1091     if( IsWindow(hwnd) )
1092     {
1093         WINDOWPLACEMENT wndpl;
1094         UINT flags;
1095
1096         wndpl.length  = sizeof(wndpl);
1097         wndpl.showCmd = showCmd;
1098         wndpl.flags = flags = 0;
1099
1100         if( pt )
1101         {
1102             flags |= PLACE_MIN;
1103             wndpl.flags |= WPF_SETMINPOSITION;
1104             wndpl.ptMinPosition = *pt;
1105         }
1106         if( rect )
1107         {
1108             flags |= PLACE_RECT;
1109             wndpl.rcNormalPosition = *rect;
1110         }
1111         WINPOS_SetPlacement( hwnd, &wndpl, flags );
1112     }
1113 }
1114
1115 /*******************************************************************
1116  *         WINPOS_SetActiveWindow
1117  *
1118  * SetActiveWindow() back-end. This is the only function that
1119  * can assign active status to a window. It must be called only
1120  * for the top level windows.
1121  */
1122 BOOL WINPOS_SetActiveWindow( HWND hWnd, BOOL fMouse, BOOL fChangeFocus)
1123 {
1124     WND*     wndPtr=0, *wndTemp;
1125     HQUEUE16 hOldActiveQueue, hNewActiveQueue;
1126     MESSAGEQUEUE *pOldActiveQueue = 0, *pNewActiveQueue = 0;
1127     WORD     wIconized = 0;
1128     HWND     hwndActive = 0;
1129     BOOL     bRet = 0;
1130
1131     TRACE("(%04x, %d, %d)\n", hWnd, fMouse, fChangeFocus );
1132
1133     /* Get current active window from the active queue */
1134     if ( hActiveQueue )
1135     {
1136         pOldActiveQueue = QUEUE_Lock( hActiveQueue );
1137         if ( pOldActiveQueue )
1138             hwndActive = PERQDATA_GetActiveWnd( pOldActiveQueue->pQData );
1139     }
1140
1141     if ((wndPtr = WIN_FindWndPtr(hWnd)))
1142         hWnd = wndPtr->hwndSelf;  /* make it a full handle */
1143
1144     /* paranoid checks */
1145     if( hWnd == GetDesktopWindow() || (bRet = (hWnd == hwndActive)) )
1146         goto CLEANUP_END;
1147
1148 /*  if (wndPtr && (GetFastQueue16() != wndPtr->hmemTaskQ))
1149  *      return 0;
1150  */
1151     hOldActiveQueue = hActiveQueue;
1152
1153     if( (wndTemp = WIN_FindWndPtr(hwndActive)) )
1154     {
1155         wIconized = HIWORD(wndTemp->dwStyle & WS_MINIMIZE);
1156         WIN_ReleaseWndPtr(wndTemp);
1157     }
1158     else
1159         TRACE("no current active window.\n");
1160
1161     /* call CBT hook chain */
1162     if (HOOK_IsHooked( WH_CBT ))
1163     {
1164         CBTACTIVATESTRUCT cbt;
1165         cbt.fMouse     = fMouse;
1166         cbt.hWndActive = hwndActive;
1167         if (HOOK_CallHooksA( WH_CBT, HCBT_ACTIVATE, (WPARAM)hWnd, (LPARAM)&cbt )) goto CLEANUP_END;
1168     }
1169
1170     /* set prev active wnd to current active wnd and send notification */
1171     if ((hwndPrevActive = hwndActive) && IsWindow(hwndPrevActive))
1172     {
1173         MESSAGEQUEUE *pTempActiveQueue = 0;
1174
1175         if (!SendMessageA( hwndPrevActive, WM_NCACTIVATE, FALSE, 0 ))
1176         {
1177             if (GetSysModalWindow16() != WIN_Handle16(hWnd)) goto CLEANUP_END;
1178             /* disregard refusal if hWnd is sysmodal */
1179         }
1180
1181         SendMessageA( hwndPrevActive, WM_ACTIVATE,
1182                         MAKEWPARAM( WA_INACTIVE, wIconized ),
1183                         (LPARAM)hWnd );
1184
1185         /* check if something happened during message processing
1186          * (global active queue may have changed)
1187          */
1188         pTempActiveQueue = QUEUE_Lock( hActiveQueue );
1189         if(!pTempActiveQueue)
1190             goto CLEANUP_END;
1191
1192         hwndActive = PERQDATA_GetActiveWnd( pTempActiveQueue->pQData );
1193         QUEUE_Unlock( pTempActiveQueue );
1194         if( hwndPrevActive != hwndActive )
1195             goto CLEANUP_END;
1196     }
1197
1198     /* Set new active window in the message queue */
1199     hwndActive = hWnd;
1200     if ( wndPtr )
1201     {
1202         pNewActiveQueue = QUEUE_Lock( wndPtr->hmemTaskQ );
1203         if ( pNewActiveQueue )
1204             PERQDATA_SetActiveWnd( pNewActiveQueue->pQData, hwndActive );
1205     }
1206     else /* have to do this or MDI frame activation goes to hell */
1207         if( pOldActiveQueue )
1208             PERQDATA_SetActiveWnd( pOldActiveQueue->pQData, 0 );
1209
1210     /* send palette messages */
1211     if (hWnd && SendMessageW( hWnd, WM_QUERYNEWPALETTE, 0, 0L))
1212         SendMessageW( HWND_BROADCAST, WM_PALETTEISCHANGING, (WPARAM)hWnd, 0 );
1213
1214     /* if prev wnd is minimized redraw icon title */
1215     if( IsIconic( hwndPrevActive ) ) WINPOS_RedrawIconTitle(hwndPrevActive);
1216
1217     /* managed windows will get ConfigureNotify event */
1218     if (wndPtr && !(wndPtr->dwStyle & WS_CHILD) && !(wndPtr->dwExStyle & WS_EX_MANAGED))
1219     {
1220         /* check Z-order and bring hWnd to the top */
1221         HWND tmp = GetTopWindow(0);
1222         while (tmp && !(GetWindowLongA( tmp, GWL_STYLE ) & WS_VISIBLE))
1223             tmp = GetWindow( tmp, GW_HWNDNEXT );
1224
1225         if( tmp != hWnd )
1226             SetWindowPos(hWnd, HWND_TOP, 0,0,0,0,
1227                            SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE );
1228         if (!IsWindow(hWnd))
1229             goto CLEANUP;
1230     }
1231
1232     /* Get a handle to the new active queue */
1233     hNewActiveQueue = wndPtr ? wndPtr->hmemTaskQ : 0;
1234
1235     /* send WM_ACTIVATEAPP if necessary */
1236     if (hOldActiveQueue != hNewActiveQueue)
1237     {
1238         HWND *list, *phwnd;
1239         DWORD old_thread = GetWindowThreadProcessId( hwndPrevActive, NULL );
1240         DWORD new_thread = GetWindowThreadProcessId( hwndActive, NULL );
1241
1242         if ((list = WIN_ListChildren( GetDesktopWindow() )))
1243         {
1244             for (phwnd = list; *phwnd; phwnd++)
1245             {
1246                 if (!IsWindow( *phwnd )) continue;
1247                 if (GetWindowThreadProcessId( *phwnd, NULL ) == old_thread)
1248                     SendMessageW( *phwnd, WM_ACTIVATEAPP, 0, new_thread );
1249             }
1250             HeapFree( GetProcessHeap(), 0, list );
1251         }
1252
1253         hActiveQueue = hNewActiveQueue;
1254
1255         if ((list = WIN_ListChildren( GetDesktopWindow() )))
1256         {
1257             for (phwnd = list; *phwnd; phwnd++)
1258             {
1259                 if (!IsWindow( *phwnd )) continue;
1260                 if (GetWindowThreadProcessId( *phwnd, NULL ) == new_thread)
1261                     SendMessageW( *phwnd, WM_ACTIVATEAPP, 1, old_thread );
1262             }
1263             HeapFree( GetProcessHeap(), 0, list );
1264         }
1265
1266         if (hWnd && !IsWindow(hWnd)) goto CLEANUP;
1267     }
1268
1269     if (hWnd)
1270     {
1271         /* walk up to the first unowned window */
1272         HWND tmp = GetAncestor( hWnd, GA_ROOTOWNER );
1273         wndTemp = WIN_FindWndPtr( tmp );
1274         /* and set last active owned popup */
1275         wndTemp->hwndLastActive = hWnd;
1276
1277         wIconized = HIWORD(wndTemp->dwStyle & WS_MINIMIZE);
1278         WIN_ReleaseWndPtr(wndTemp);
1279         SendMessageA( hWnd, WM_NCACTIVATE, TRUE, 0 );
1280         SendMessageA( hWnd, WM_ACTIVATE,
1281                  MAKEWPARAM( (fMouse) ? WA_CLICKACTIVE : WA_ACTIVE, wIconized),
1282                  (LPARAM)hwndPrevActive );
1283         if( !IsWindow(hWnd) ) goto CLEANUP;
1284     }
1285
1286     /* change focus if possible */
1287     if ( fChangeFocus )
1288     {
1289         if ( pNewActiveQueue )
1290         {
1291             HWND hOldFocus = PERQDATA_GetFocusWnd( pNewActiveQueue->pQData );
1292
1293             if ( hOldFocus && GetAncestor( hOldFocus, GA_ROOT ) != hwndActive )
1294                 FOCUS_SwitchFocus( pNewActiveQueue, hOldFocus,
1295                                    (wndPtr && (wndPtr->dwStyle & WS_MINIMIZE))?
1296                                    0 : hwndActive );
1297         }
1298
1299         if ( pOldActiveQueue &&
1300              ( !pNewActiveQueue ||
1301                 pNewActiveQueue->pQData != pOldActiveQueue->pQData ) )
1302         {
1303             HWND hOldFocus = PERQDATA_GetFocusWnd( pOldActiveQueue->pQData );
1304             if ( hOldFocus )
1305                 FOCUS_SwitchFocus( pOldActiveQueue, hOldFocus, 0 );
1306         }
1307     }
1308
1309     if( !hwndPrevActive && wndPtr )
1310     {
1311         if (USER_Driver.pForceWindowRaise) USER_Driver.pForceWindowRaise( wndPtr->hwndSelf );
1312     }
1313
1314     /* if active wnd is minimized redraw icon title */
1315     if( IsIconic(hwndActive) ) WINPOS_RedrawIconTitle(hwndActive);
1316
1317     bRet = (hWnd == hwndActive);  /* Success? */
1318
1319 CLEANUP: /* Unlock the message queues before returning */
1320
1321     if ( pNewActiveQueue )
1322         QUEUE_Unlock( pNewActiveQueue );
1323
1324 CLEANUP_END:
1325
1326     if ( pOldActiveQueue )
1327         QUEUE_Unlock( pOldActiveQueue );
1328
1329     WIN_ReleaseWndPtr(wndPtr);
1330     return bRet;
1331 }
1332
1333 /*******************************************************************
1334  *         WINPOS_ActivateOtherWindow
1335  *
1336  *  Activates window other than pWnd.
1337  */
1338 BOOL WINPOS_ActivateOtherWindow(HWND hwnd)
1339 {
1340     BOOL bRet = 0;
1341     WND *pWnd;
1342     HWND hwndActive = 0;
1343     HWND hwndTo = 0;
1344     HWND owner;
1345
1346     /* Get current active window from the active queue */
1347     if ( hActiveQueue )
1348     {
1349         MESSAGEQUEUE *pActiveQueue = QUEUE_Lock( hActiveQueue );
1350         if ( pActiveQueue )
1351         {
1352             hwndActive = PERQDATA_GetActiveWnd( pActiveQueue->pQData );
1353             QUEUE_Unlock( pActiveQueue );
1354         }
1355     }
1356
1357     pWnd = WIN_FindWndPtr( hwnd );
1358     hwnd = pWnd->hwndSelf;
1359
1360     if( hwnd == hwndPrevActive )
1361         hwndPrevActive = 0;
1362
1363     if( hwndActive != hwnd &&
1364         ( hwndActive || QUEUE_IsExitingQueue(pWnd->hmemTaskQ)) )
1365     {
1366         WIN_ReleaseWndPtr( pWnd );
1367         return 0;
1368     }
1369
1370     owner = GetWindow( hwnd, GW_OWNER );
1371     if( !(pWnd->dwStyle & WS_POPUP) || !owner ||
1372         !WINPOS_CanActivate((hwndTo = GetAncestor( owner, GA_ROOT ))) )
1373     {
1374         HWND tmp = GetAncestor( hwnd, GA_ROOT );
1375         hwndTo = hwndPrevActive;
1376
1377         while( !WINPOS_CanActivate(hwndTo) )
1378         {
1379             /* by now owned windows should've been taken care of */
1380             tmp = hwndTo = GetWindow( tmp, GW_HWNDNEXT );
1381             if( !hwndTo ) break;
1382         }
1383     }
1384     WIN_ReleaseWndPtr( pWnd );
1385
1386     bRet = WINPOS_SetActiveWindow( hwndTo, FALSE, TRUE );
1387
1388     hwndPrevActive = 0;
1389     return bRet;
1390 }
1391
1392 /*******************************************************************
1393  *         WINPOS_ChangeActiveWindow
1394  *
1395  */
1396 BOOL WINPOS_ChangeActiveWindow( HWND hWnd, BOOL mouseMsg )
1397 {
1398     WND *wndPtr;
1399     HWND hwndActive = 0;
1400
1401     /* Get current active window from the active queue */
1402     if ( hActiveQueue )
1403     {
1404         MESSAGEQUEUE *pActiveQueue = QUEUE_Lock( hActiveQueue );
1405         if ( pActiveQueue )
1406         {
1407             hwndActive = PERQDATA_GetActiveWnd( pActiveQueue->pQData );
1408             QUEUE_Unlock( pActiveQueue );
1409         }
1410     }
1411
1412     if (!hWnd)
1413         return WINPOS_SetActiveWindow( 0, mouseMsg, TRUE );
1414
1415     if (!(wndPtr = WIN_FindWndPtr(hWnd))) return FALSE;
1416     hWnd = wndPtr->hwndSelf;
1417
1418     /* child windows get WM_CHILDACTIVATE message */
1419     if( (wndPtr->dwStyle & (WS_CHILD | WS_POPUP)) == WS_CHILD )
1420     {
1421         WIN_ReleaseWndPtr(wndPtr);
1422         return SendMessageA(hWnd, WM_CHILDACTIVATE, 0, 0L);
1423     }
1424     WIN_ReleaseWndPtr(wndPtr);
1425
1426     if( hWnd == hwndActive ) return FALSE;
1427
1428     return WINPOS_SetActiveWindow(hWnd ,mouseMsg ,TRUE);
1429 }
1430
1431
1432 /***********************************************************************
1433  *           WINPOS_SendNCCalcSize
1434  *
1435  * Send a WM_NCCALCSIZE message to a window.
1436  * All parameters are read-only except newClientRect.
1437  * oldWindowRect, oldClientRect and winpos must be non-NULL only
1438  * when calcValidRect is TRUE.
1439  */
1440 LONG WINPOS_SendNCCalcSize( HWND hwnd, BOOL calcValidRect,
1441                             RECT *newWindowRect, RECT *oldWindowRect,
1442                             RECT *oldClientRect, WINDOWPOS *winpos,
1443                             RECT *newClientRect )
1444 {
1445     NCCALCSIZE_PARAMS params;
1446     WINDOWPOS winposCopy;
1447     LONG result;
1448
1449     params.rgrc[0] = *newWindowRect;
1450     if (calcValidRect)
1451     {
1452         winposCopy = *winpos;
1453         params.rgrc[1] = *oldWindowRect;
1454         params.rgrc[2] = *oldClientRect;
1455         params.lppos = &winposCopy;
1456     }
1457     result = SendMessageA( hwnd, WM_NCCALCSIZE, calcValidRect,
1458                              (LPARAM)&params );
1459     TRACE("%d,%d-%d,%d\n",
1460                  params.rgrc[0].left, params.rgrc[0].top,
1461                  params.rgrc[0].right, params.rgrc[0].bottom );
1462
1463     /* If the application send back garbage, ignore it */
1464     if (params.rgrc[0].left <= params.rgrc[0].right && params.rgrc[0].top <= params.rgrc[0].bottom)
1465         *newClientRect = params.rgrc[0];
1466
1467     return result;
1468 }
1469
1470
1471 /***********************************************************************
1472  *           WINPOS_HandleWindowPosChanging16
1473  *
1474  * Default handling for a WM_WINDOWPOSCHANGING. Called from DefWindowProc().
1475  */
1476 LONG WINPOS_HandleWindowPosChanging16( HWND hwnd, WINDOWPOS16 *winpos )
1477 {
1478     POINT maxSize, minTrack;
1479     LONG style = GetWindowLongA( hwnd, GWL_STYLE );
1480
1481     if (winpos->flags & SWP_NOSIZE) return 0;
1482     if ((style & WS_THICKFRAME) || ((style & (WS_POPUP | WS_CHILD)) == 0))
1483     {
1484         WINPOS_GetMinMaxInfo( hwnd, &maxSize, NULL, &minTrack, NULL );
1485         if (maxSize.x < winpos->cx) winpos->cx = maxSize.x;
1486         if (maxSize.y < winpos->cy) winpos->cy = maxSize.y;
1487         if (!(style & WS_MINIMIZE))
1488         {
1489             if (winpos->cx < minTrack.x ) winpos->cx = minTrack.x;
1490             if (winpos->cy < minTrack.y ) winpos->cy = minTrack.y;
1491         }
1492     }
1493     return 0;
1494 }
1495
1496
1497 /***********************************************************************
1498  *           WINPOS_HandleWindowPosChanging
1499  *
1500  * Default handling for a WM_WINDOWPOSCHANGING. Called from DefWindowProc().
1501  */
1502 LONG WINPOS_HandleWindowPosChanging( HWND hwnd, WINDOWPOS *winpos )
1503 {
1504     POINT maxSize, minTrack;
1505     LONG style = GetWindowLongA( hwnd, GWL_STYLE );
1506
1507     if (winpos->flags & SWP_NOSIZE) return 0;
1508     if ((style & WS_THICKFRAME) || ((style & (WS_POPUP | WS_CHILD)) == 0))
1509     {
1510         WINPOS_GetMinMaxInfo( hwnd, &maxSize, NULL, &minTrack, NULL );
1511         winpos->cx = min( winpos->cx, maxSize.x );
1512         winpos->cy = min( winpos->cy, maxSize.y );
1513         if (!(style & WS_MINIMIZE))
1514         {
1515             if (winpos->cx < minTrack.x ) winpos->cx = minTrack.x;
1516             if (winpos->cy < minTrack.y ) winpos->cy = minTrack.y;
1517         }
1518     }
1519     return 0;
1520 }
1521
1522
1523 /***********************************************************************
1524  *              SetWindowPos (USER32.@)
1525  */
1526 BOOL WINAPI SetWindowPos( HWND hwnd, HWND hwndInsertAfter,
1527                           INT x, INT y, INT cx, INT cy, UINT flags )
1528 {
1529     WINDOWPOS winpos;
1530
1531     winpos.hwnd = hwnd;
1532     winpos.hwndInsertAfter = hwndInsertAfter;
1533     winpos.x = x;
1534     winpos.y = y;
1535     winpos.cx = cx;
1536     winpos.cy = cy;
1537     winpos.flags = flags;
1538     return USER_Driver.pSetWindowPos( &winpos );
1539 }
1540
1541
1542 /***********************************************************************
1543  *              BeginDeferWindowPos (USER32.@)
1544  */
1545 HDWP WINAPI BeginDeferWindowPos( INT count )
1546 {
1547     HDWP handle;
1548     DWP *pDWP;
1549
1550     if (count < 0)
1551     {
1552         SetLastError(ERROR_INVALID_PARAMETER);
1553         return 0;
1554     }
1555     /* Windows allows zero count, in which case it allocates context for 8 moves */
1556     if (count == 0) count = 8;
1557
1558     handle = USER_HEAP_ALLOC( sizeof(DWP) + (count-1)*sizeof(WINDOWPOS) );
1559     if (!handle) return 0;
1560     pDWP = (DWP *) USER_HEAP_LIN_ADDR( handle );
1561     pDWP->actualCount    = 0;
1562     pDWP->suggestedCount = count;
1563     pDWP->valid          = TRUE;
1564     pDWP->wMagic         = DWP_MAGIC;
1565     pDWP->hwndParent     = 0;
1566     return handle;
1567 }
1568
1569
1570 /***********************************************************************
1571  *              DeferWindowPos (USER32.@)
1572  */
1573 HDWP WINAPI DeferWindowPos( HDWP hdwp, HWND hwnd, HWND hwndAfter,
1574                                 INT x, INT y, INT cx, INT cy,
1575                                 UINT flags )
1576 {
1577     DWP *pDWP;
1578     int i;
1579     HDWP newhdwp = hdwp,retvalue;
1580     /* HWND parent; */
1581     WND *pWnd;
1582
1583     hwnd = WIN_GetFullHandle( hwnd );
1584     if (hwnd == GetDesktopWindow()) return 0;
1585
1586     if (!(pDWP = USER_HEAP_LIN_ADDR( hdwp ))) return 0;
1587
1588     if (!(pWnd = WIN_FindWndPtr( hwnd ))) return 0;
1589
1590 /* Numega Bounds Checker Demo dislikes the following code.
1591    In fact, I've not been able to find any "same parent" requirement in any docu
1592    [AM 980509]
1593  */
1594 #if 0
1595     /* All the windows of a DeferWindowPos() must have the same parent */
1596     parent = pWnd->parent->hwndSelf;
1597     if (pDWP->actualCount == 0) pDWP->hwndParent = parent;
1598     else if (parent != pDWP->hwndParent)
1599     {
1600         USER_HEAP_FREE( hdwp );
1601         retvalue = 0;
1602         goto END;
1603     }
1604 #endif
1605
1606     for (i = 0; i < pDWP->actualCount; i++)
1607     {
1608         if (pDWP->winPos[i].hwnd == hwnd)
1609         {
1610               /* Merge with the other changes */
1611             if (!(flags & SWP_NOZORDER))
1612             {
1613                 pDWP->winPos[i].hwndInsertAfter = hwndAfter;
1614             }
1615             if (!(flags & SWP_NOMOVE))
1616             {
1617                 pDWP->winPos[i].x = x;
1618                 pDWP->winPos[i].y = y;
1619             }
1620             if (!(flags & SWP_NOSIZE))
1621             {
1622                 pDWP->winPos[i].cx = cx;
1623                 pDWP->winPos[i].cy = cy;
1624             }
1625             pDWP->winPos[i].flags &= flags | ~(SWP_NOSIZE | SWP_NOMOVE |
1626                                                SWP_NOZORDER | SWP_NOREDRAW |
1627                                                SWP_NOACTIVATE | SWP_NOCOPYBITS|
1628                                                SWP_NOOWNERZORDER);
1629             pDWP->winPos[i].flags |= flags & (SWP_SHOWWINDOW | SWP_HIDEWINDOW |
1630                                               SWP_FRAMECHANGED);
1631             retvalue = hdwp;
1632             goto END;
1633         }
1634     }
1635     if (pDWP->actualCount >= pDWP->suggestedCount)
1636     {
1637         newhdwp = USER_HEAP_REALLOC( hdwp,
1638                       sizeof(DWP) + pDWP->suggestedCount*sizeof(WINDOWPOS) );
1639         if (!newhdwp)
1640         {
1641             retvalue = 0;
1642             goto END;
1643         }
1644         pDWP = (DWP *) USER_HEAP_LIN_ADDR( newhdwp );
1645         pDWP->suggestedCount++;
1646     }
1647     pDWP->winPos[pDWP->actualCount].hwnd = hwnd;
1648     pDWP->winPos[pDWP->actualCount].hwndInsertAfter = hwndAfter;
1649     pDWP->winPos[pDWP->actualCount].x = x;
1650     pDWP->winPos[pDWP->actualCount].y = y;
1651     pDWP->winPos[pDWP->actualCount].cx = cx;
1652     pDWP->winPos[pDWP->actualCount].cy = cy;
1653     pDWP->winPos[pDWP->actualCount].flags = flags;
1654     pDWP->actualCount++;
1655     retvalue = newhdwp;
1656 END:
1657     WIN_ReleaseWndPtr(pWnd);
1658     return retvalue;
1659 }
1660
1661
1662 /***********************************************************************
1663  *              EndDeferWindowPos (USER32.@)
1664  */
1665 BOOL WINAPI EndDeferWindowPos( HDWP hdwp )
1666 {
1667     DWP *pDWP;
1668     WINDOWPOS *winpos;
1669     BOOL res = TRUE;
1670     int i;
1671
1672     pDWP = (DWP *) USER_HEAP_LIN_ADDR( hdwp );
1673     if (!pDWP) return FALSE;
1674     for (i = 0, winpos = pDWP->winPos; i < pDWP->actualCount; i++, winpos++)
1675     {
1676         if (!(res = USER_Driver.pSetWindowPos( winpos ))) break;
1677     }
1678     USER_HEAP_FREE( hdwp );
1679     return res;
1680 }
1681
1682
1683 /***********************************************************************
1684  *              TileChildWindows (USER.199)
1685  */
1686 void WINAPI TileChildWindows16( HWND16 parent, WORD action )
1687 {
1688     FIXME("(%04x, %d): stub\n", parent, action);
1689 }
1690
1691 /***********************************************************************
1692  *              CascadeChildWindows (USER.198)
1693  */
1694 void WINAPI CascadeChildWindows16( HWND16 parent, WORD action )
1695 {
1696     FIXME("(%04x, %d): stub\n", parent, action);
1697 }
1698
1699 /***********************************************************************
1700  *              SetProgmanWindow (USER32.@)
1701  */
1702 HWND WINAPI SetProgmanWindow ( HWND hwnd )
1703 {
1704         hGlobalProgmanWindow = hwnd;
1705         return hGlobalProgmanWindow;
1706 }
1707
1708 /***********************************************************************
1709  *              GetProgmanWindow (USER32.@)
1710  */
1711 HWND WINAPI GetProgmanWindow(void)
1712 {
1713         return hGlobalProgmanWindow;
1714 }
1715
1716 /***********************************************************************
1717  *              SetShellWindowEx (USER32.@)
1718  * hwndProgman =  Progman[Program Manager]
1719  *                |-> SHELLDLL_DefView
1720  * hwndListView = |   |-> SysListView32
1721  *                |   |   |-> tooltips_class32
1722  *                |   |
1723  *                |   |-> SysHeader32
1724  *                |
1725  *                |-> ProxyTarget
1726  */
1727 HWND WINAPI SetShellWindowEx ( HWND hwndProgman, HWND hwndListView )
1728 {
1729         FIXME("0x%08x 0x%08x stub\n",hwndProgman ,hwndListView );
1730         hGlobalShellWindow = hwndProgman;
1731         return hGlobalShellWindow;
1732
1733 }
1734
1735 /***********************************************************************
1736  *              SetTaskmanWindow (USER32.@)
1737  * NOTES
1738  *   hwnd = MSTaskSwWClass
1739  *          |-> SysTabControl32
1740  */
1741 HWND WINAPI SetTaskmanWindow ( HWND hwnd )
1742 {
1743         hGlobalTaskmanWindow = hwnd;
1744         return hGlobalTaskmanWindow;
1745 }
1746
1747 /***********************************************************************
1748  *              GetTaskmanWindow (USER32.@)
1749  */
1750 HWND WINAPI GetTaskmanWindow(void)
1751 {
1752         return hGlobalTaskmanWindow;
1753 }