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