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;
 177     WND *wndPtr = WIN_GetPtr( hwnd );
 178
 179     if (!wndPtr) return FALSE;
 180
 181     if (wndPtr != WND_OTHER_PROCESS)
 182     {
 183         *rect = wndPtr->rectWindow;
 184         WIN_ReleasePtr( wndPtr );
 185         ret = TRUE;
 186     }
 187     else
 188     {
 189         SERVER_START_REQ( get_window_rectangles )
 190         {
 191             req->handle = hwnd;
 192             if ((ret = !SERVER_CALL_ERR()))
 193             {
 194                 rect->left   = req->window.left;
 195                 rect->top    = req->window.top;
 196                 rect->right  = req->window.right;
 197                 rect->bottom = req->window.bottom;
 198             }
 199         }
 200         SERVER_END_REQ;
 201     }
 202     if (ret)
 203     {
 204         MapWindowPoints( GetAncestor( hwnd, GA_PARENT ), 0, (POINT *)rect, 2 );
 205         TRACE( "hwnd %04x (%d,%d)-(%d,%d)\n",
 206                hwnd, rect->left, rect->top, rect->right, rect->bottom);
 207     }
 208     return ret;
 209 }
 210
 211
 212 /***********************************************************************
 213  *              GetWindowRgn (USER32.@)
 214  */
 215 int WINAPI GetWindowRgn ( HWND hwnd, HRGN hrgn )
 216 {
 217     int nRet = ERROR;
 218     WND *wndPtr = WIN_FindWndPtr( hwnd );
 219     if (wndPtr)
 220     {
 221         if (wndPtr->hrgnWnd) nRet = CombineRgn( hrgn, wndPtr->hrgnWnd, 0, RGN_COPY );
 222         WIN_ReleaseWndPtr(wndPtr);
 223     }
 224     return nRet;
 225 }
 226
 227 /***********************************************************************
 228  *              SetWindowRgn (USER32.@)
 229  */
 230 int WINAPI SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL bRedraw )
 231 {
 232     RECT rect;
 233     WND *wndPtr;
 234     int ret = FALSE;
 235
 236     if (USER_Driver.pSetWindowRgn)
 237         return USER_Driver.pSetWindowRgn( hwnd, hrgn, bRedraw );
 238
 239     if (!(wndPtr = WIN_FindWndPtr(hwnd))) return FALSE;
 240
 241     if (wndPtr->hrgnWnd == hrgn)
 242     {
 243         ret = TRUE;
 244         goto done;
 245     }
 246
 247     if (hrgn) /* verify that region really exists */
 248     {
 249         if (GetRgnBox( hrgn, &rect ) == ERROR) goto done;
 250     }
 251
 252     if (wndPtr->hrgnWnd)
 253     {
 254         /* delete previous region */
 255         DeleteObject(wndPtr->hrgnWnd);
 256         wndPtr->hrgnWnd = 0;
 257     }
 258     wndPtr->hrgnWnd = hrgn;
 259
 260     /* Size the window to the rectangle of the new region (if it isn't NULL) */
 261     if (hrgn) SetWindowPos( hwnd, 0, rect.left, rect.top,
 262                             rect.right  - rect.left, rect.bottom - rect.top,
 263                             SWP_NOSIZE | SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOACTIVATE |
 264                             SWP_NOZORDER | (bRedraw ? 0 : SWP_NOREDRAW) );
 265     ret = TRUE;
 266
 267  done:
 268     WIN_ReleaseWndPtr(wndPtr);
 269     return ret;
 270 }
 271
 272
 273 /***********************************************************************
 274  *              GetClientRect (USER32.@)
 275  */
 276 BOOL WINAPI GetClientRect( HWND hwnd, LPRECT rect )
 277 {
 278     BOOL ret;
 279     WND *wndPtr = WIN_GetPtr( hwnd );
 280
 281     rect->left = rect->top = rect->right = rect->bottom = 0;
 282     if (!wndPtr) return FALSE;
 283
 284     if (wndPtr != WND_OTHER_PROCESS)
 285     {
 286         rect->right  = wndPtr->rectClient.right - wndPtr->rectClient.left;
 287         rect->bottom = wndPtr->rectClient.bottom - wndPtr->rectClient.top;
 288         WIN_ReleasePtr( wndPtr );
 289         ret = TRUE;
 290     }
 291     else
 292     {
 293         SERVER_START_REQ( get_window_rectangles )
 294         {
 295             req->handle = hwnd;
 296             if ((ret = !SERVER_CALL_ERR()))
 297             {
 298                 rect->right  = req->client.right - req->client.left;
 299                 rect->bottom = req->client.bottom - req->client.top;
 300             }
 301         }
 302         SERVER_END_REQ;
 303     }
 304     return ret;
 305 }
 306
 307
 308 /*******************************************************************
 309  *              ClientToScreen (USER32.@)
 310  */
 311 BOOL WINAPI ClientToScreen( HWND hwnd, LPPOINT lppnt )
 312 {
 313     MapWindowPoints( hwnd, 0, lppnt, 1 );
 314     return TRUE;
 315 }
 316
 317
 318 /*******************************************************************
 319  *              ScreenToClient (USER32.@)
 320  */
 321 BOOL WINAPI ScreenToClient( HWND hwnd, LPPOINT lppnt )
 322 {
 323     MapWindowPoints( 0, hwnd, lppnt, 1 );
 324     return TRUE;
 325 }
 326
 327
 328 /***********************************************************************
 329  *           find_child_from_point
 330  *
 331  * Find the child that contains pt. Helper for WindowFromPoint.
 332  * pt is in parent client coordinates.
 333  * lparam is the param to pass in the WM_NCHITTEST message.
 334  */
 335 static HWND find_child_from_point( HWND parent, POINT pt, INT *hittest, LPARAM lparam )
 336 {
 337     int i, res;
 338     WND *wndPtr;
 339     HWND *list = WIN_ListChildren( parent );
 340
 341     if (!list) return 0;
 342     for (i = 0; list[i]; i++)
 343     {
 344         if (!(wndPtr = WIN_FindWndPtr( list[i] ))) continue;
 345         /* If point is in window, and window is visible, and it  */
 346         /* is enabled (or it's a top-level window), then explore */
 347         /* its children. Otherwise, go to the next window.       */
 348
 349         if (!(wndPtr->dwStyle & WS_VISIBLE)) goto next;  /* not visible -> skip */
 350         if ((wndPtr->dwStyle & (WS_POPUP | WS_CHILD | WS_DISABLED)) == (WS_CHILD | WS_DISABLED))
 351             goto next;  /* disabled child -> skip */
 352         if ((wndPtr->dwExStyle & (WS_EX_LAYERED | WS_EX_TRANSPARENT)) == (WS_EX_LAYERED | WS_EX_TRANSPARENT))
 353             goto next;  /* transparent -> skip */
 354         if (wndPtr->hrgnWnd)
 355         {
 356             if (!PtInRegion( wndPtr->hrgnWnd, pt.x - wndPtr->rectWindow.left,
 357                              pt.y - wndPtr->rectWindow.top ))
 358                 goto next;  /* point outside window region -> skip */
 359         }
 360         else if (!PtInRect( &wndPtr->rectWindow, pt )) goto next;  /* not in window -> skip */
 361
 362         /* If window is minimized or disabled, return at once */
 363         if (wndPtr->dwStyle & WS_MINIMIZE)
 364         {
 365             WIN_ReleaseWndPtr( wndPtr );
 366             *hittest = HTCAPTION;
 367             return list[i];
 368         }
 369         if (wndPtr->dwStyle & WS_DISABLED)
 370         {
 371             WIN_ReleaseWndPtr( wndPtr );
 372             *hittest = HTERROR;
 373             return list[i];
 374         }
 375
 376         /* If point is in client area, explore children */
 377         if (PtInRect( &wndPtr->rectClient, pt ))
 378         {
 379             POINT new_pt;
 380             HWND ret;
 381
 382             new_pt.x = pt.x - wndPtr->rectClient.left;
 383             new_pt.y = pt.y - wndPtr->rectClient.top;
 384             WIN_ReleaseWndPtr( wndPtr );
 385             if ((ret = find_child_from_point( list[i], new_pt, hittest, lparam )))
 386                 return ret;
 387         }
 388         else WIN_ReleaseWndPtr( wndPtr );
 389
 390         /* Now it's inside window, send WM_NCCHITTEST (if same thread) */
 391         if (!WIN_IsCurrentThread( list[i] ))
 392         {
 393             *hittest = HTCLIENT;
 394             return list[i];
 395         }
 396         if ((res = SendMessageA( list[i], WM_NCHITTEST, 0, lparam )) != HTTRANSPARENT)
 397         {
 398             *hittest = res;  /* Found the window */
 399             return list[i];
 400         }
 401         continue;  /* continue search with next sibling */
 402
 403     next:
 404         WIN_ReleaseWndPtr( wndPtr );
 405     }
 406     return 0;
 407 }
 408
 409
 410 /***********************************************************************
 411  *           WINPOS_WindowFromPoint
 412  *
 413  * Find the window and hittest for a given point.
 414  */
 415 HWND WINPOS_WindowFromPoint( HWND hwndScope, POINT pt, INT *hittest )
 416 {
 417     WND *wndScope;
 418     POINT xy = pt;
 419     int res;
 420
 421     TRACE("scope %04x %ld,%ld\n", hwndScope, pt.x, pt.y);
 422
 423     if (!hwndScope) hwndScope = GetDesktopWindow();
 424     if (!(wndScope = WIN_FindWndPtr( hwndScope ))) return 0;
 425     hwndScope = wndScope->hwndSelf;  /* make it a full handle */
 426
 427     *hittest = HTERROR;
 428     if( wndScope->dwStyle & WS_DISABLED )
 429     {
 430         WIN_ReleaseWndPtr(wndScope);
 431         return 0;
 432     }
 433
 434     if (wndScope->parent)
 435         MapWindowPoints( GetDesktopWindow(), wndScope->parent, &xy, 1 );
 436
 437     if (!(wndScope->dwStyle & WS_MINIMIZE) && PtInRect( &wndScope->rectClient, xy ))
 438     {
 439         HWND ret;
 440
 441         xy.x -= wndScope->rectClient.left;
 442         xy.y -= wndScope->rectClient.top;
 443         WIN_ReleaseWndPtr( wndScope );
 444         if ((ret = find_child_from_point( hwndScope, xy, hittest, MAKELONG( pt.x, pt.y ) )))
 445         {
 446             TRACE( "found child %x\n", ret );
 447             return ret;
 448         }
 449     }
 450     else WIN_ReleaseWndPtr( wndScope );
 451
 452     /* If nothing found, try the scope window */
 453     if (!WIN_IsCurrentThread( hwndScope ))
 454     {
 455         *hittest = HTCLIENT;
 456         TRACE( "returning %x\n", hwndScope );
 457         return hwndScope;
 458     }
 459     res = SendMessageA( hwndScope, WM_NCHITTEST, 0, MAKELONG( pt.x, pt.y ) );
 460     if (res != HTTRANSPARENT)
 461     {
 462         *hittest = res;  /* Found the window */
 463         TRACE( "returning %x\n", hwndScope );
 464         return hwndScope;
 465     }
 466     *hittest = HTNOWHERE;
 467     TRACE( "nothing found\n" );
 468     return 0;
 469 }
 470
 471
 472 /*******************************************************************
 473  *              WindowFromPoint (USER32.@)
 474  */
 475 HWND WINAPI WindowFromPoint( POINT pt )
 476 {
 477     INT hittest;
 478     return WINPOS_WindowFromPoint( 0, pt, &hittest );
 479 }
 480
 481
 482 /*******************************************************************
 483  *              ChildWindowFromPoint (USER32.@)
 484  */
 485 HWND WINAPI ChildWindowFromPoint( HWND hwndParent, POINT pt )
 486 {
 487     return ChildWindowFromPointEx( hwndParent, pt, CWP_ALL );
 488 }
 489
 490 /*******************************************************************
 491  *              ChildWindowFromPointEx (USER32.@)
 492  */
 493 HWND WINAPI ChildWindowFromPointEx( HWND hwndParent, POINT pt, UINT uFlags)
 494 {
 495     /* pt is in the client coordinates */
 496     HWND *list;
 497     int i;
 498     RECT rect;
 499     HWND retvalue = 0;
 500
 501     GetClientRect( hwndParent, &rect );
 502     if (!PtInRect( &rect, pt )) return 0;
 503     if (!(list = WIN_ListChildren( hwndParent ))) return 0;
 504
 505     for (i = 0; list[i] && !retvalue; i++)
 506     {
 507         WND *wnd = WIN_FindWndPtr( list[i] );
 508         if (!wnd) continue;
 509         if (PtInRect( &wnd->rectWindow, pt ))
 510         {
 511             if ( (uFlags & CWP_SKIPINVISIBLE) &&
 512                  !(wnd->dwStyle & WS_VISIBLE) );
 513             else if ( (uFlags & CWP_SKIPDISABLED) &&
 514                       (wnd->dwStyle & WS_DISABLED) );
 515             else if ( (uFlags & CWP_SKIPTRANSPARENT) &&
 516                       (wnd->dwExStyle & WS_EX_TRANSPARENT) );
 517             else retvalue = list[i];
 518         }
 519         WIN_ReleaseWndPtr( wnd );
 520     }
 521     HeapFree( GetProcessHeap(), 0, list );
 522     if (!retvalue) retvalue = hwndParent;
 523     return retvalue;
 524 }
 525
 526
 527 /*******************************************************************
 528  *         WINPOS_GetWinOffset
 529  *
 530  * Calculate the offset between the origin of the two windows. Used
 531  * to implement MapWindowPoints.
 532  */
 533 static void WINPOS_GetWinOffset( HWND hwndFrom, HWND hwndTo, POINT *offset )
 534 {
 535     WND * wndPtr;
 536
 537     offset->x = offset->y = 0;
 538
 539     /* Translate source window origin to screen coords */
 540     if (hwndFrom)
 541     {
 542         HWND hwnd = hwndFrom;
 543
 544         while (hwnd)
 545         {
 546             if (hwnd == hwndTo) return;
 547             if (!(wndPtr = WIN_GetPtr( hwnd )))
 548             {
 549                 ERR( "bad hwndFrom = %04x\n", hwnd );
 550                 return;
 551             }
 552             if (wndPtr == WND_OTHER_PROCESS) goto other_process;
 553             offset->x += wndPtr->rectClient.left;
 554             offset->y += wndPtr->rectClient.top;
 555             hwnd = wndPtr->parent;
 556             WIN_ReleasePtr( wndPtr );
 557         }
 558     }
 559
 560     /* Translate origin to destination window coords */
 561     if (hwndTo)
 562     {
 563         HWND hwnd = hwndTo;
 564
 565         while (hwnd)
 566         {
 567             if (!(wndPtr = WIN_GetPtr( hwnd )))
 568             {
 569                 ERR( "bad hwndTo = %04x\n", hwnd );
 570                 return;
 571             }
 572             if (wndPtr == WND_OTHER_PROCESS) goto other_process;
 573             offset->x -= wndPtr->rectClient.left;
 574             offset->y -= wndPtr->rectClient.top;
 575             hwnd = wndPtr->parent;
 576             WIN_ReleasePtr( wndPtr );
 577         }
 578     }
 579     return;
 580
 581  other_process:  /* one of the parents may belong to another process, do it the hard way */
 582     offset->x = offset->y = 0;
 583     SERVER_START_REQ( get_windows_offset )
 584     {
 585         req->from = hwndFrom;
 586         req->to   = hwndTo;
 587         if (!SERVER_CALL())
 588         {
 589             offset->x = req->x;
 590             offset->y = req->y;
 591         }
 592     }
 593     SERVER_END_REQ;
 594 }
 595
 596
 597 /*******************************************************************
 598  *              MapWindowPoints (USER.258)
 599  */
 600 void WINAPI MapWindowPoints16( HWND16 hwndFrom, HWND16 hwndTo,
 601                                LPPOINT16 lppt, UINT16 count )
 602 {
 603     POINT offset;
 604
 605     WINPOS_GetWinOffset( WIN_Handle32(hwndFrom), WIN_Handle32(hwndTo), &offset );
 606     while (count--)
 607     {
 608         lppt->x += offset.x;
 609         lppt->y += offset.y;
 610         lppt++;
 611     }
 612 }
 613
 614
 615 /*******************************************************************
 616  *              MapWindowPoints (USER32.@)
 617  */
 618 INT WINAPI MapWindowPoints( HWND hwndFrom, HWND hwndTo, LPPOINT lppt, UINT count )
 619 {
 620     POINT offset;
 621
 622     WINPOS_GetWinOffset( hwndFrom, hwndTo, &offset );
 623     while (count--)
 624     {
 625         lppt->x += offset.x;
 626         lppt->y += offset.y;
 627         lppt++;
 628     }
 629     return MAKELONG( LOWORD(offset.x), LOWORD(offset.y) );
 630 }
 631
 632
 633 /***********************************************************************
 634  *              IsIconic (USER32.@)
 635  */
 636 BOOL WINAPI IsIconic(HWND hWnd)
 637 {
 638     return (GetWindowLongW( hWnd, GWL_STYLE ) & WS_MINIMIZE) != 0;
 639 }
 640
 641
 642 /***********************************************************************
 643  *              IsZoomed (USER32.@)
 644  */
 645 BOOL WINAPI IsZoomed(HWND hWnd)
 646 {
 647     return (GetWindowLongW( hWnd, GWL_STYLE ) & WS_MAXIMIZE) != 0;
 648 }
 649
 650
 651 /*******************************************************************
 652  *              GetActiveWindow (USER32.@)
 653  */
 654 HWND WINAPI GetActiveWindow(void)
 655 {
 656     MESSAGEQUEUE *pCurMsgQ = 0;
 657
 658     /* Get the messageQ for the current thread */
 659     if (!(pCurMsgQ = QUEUE_Current()))
 660 {
 661         WARN("\tCurrent message queue not found. Exiting!\n" );
 662         return 0;
 663     }
 664
 665     /* Return the current active window from the perQ data of the current message Q */
 666     return PERQDATA_GetActiveWnd( pCurMsgQ->pQData );
 667 }
 668
 669
 670 /*******************************************************************
 671  *         WINPOS_CanActivate
 672  */
 673 static BOOL WINPOS_CanActivate(HWND hwnd)
 674 {
 675     if (!hwnd) return FALSE;
 676     return ((GetWindowLongW( hwnd, GWL_STYLE ) & (WS_DISABLED|WS_VISIBLE|WS_CHILD)) == WS_VISIBLE);
 677 }
 678
 679
 680 /*******************************************************************
 681  *              SetActiveWindow (USER32.@)
 682  */
 683 HWND WINAPI SetActiveWindow( HWND hwnd )
 684 {
 685     HWND prev = 0;
 686     WND *wndPtr = WIN_FindWndPtr( hwnd );
 687     MESSAGEQUEUE *pMsgQ = 0, *pCurMsgQ = 0;
 688
 689     if (!wndPtr) return 0;
 690
 691     if (wndPtr->dwStyle & (WS_DISABLED | WS_CHILD)) goto error;
 692
 693     /* Get the messageQ for the current thread */
 694     if (!(pCurMsgQ = QUEUE_Current()))
 695     {
 696         WARN("\tCurrent message queue not found. Exiting!\n" );
 697         goto error;
 698     }
 699
 700     /* Retrieve the message queue associated with this window */
 701     pMsgQ = (MESSAGEQUEUE *)QUEUE_Lock( wndPtr->hmemTaskQ );
 702     if ( !pMsgQ )
 703     {
 704         WARN("\tWindow message queue not found. Exiting!\n" );
 705         goto error;
 706     }
 707
 708     /* Make sure that the window is associated with the calling threads
 709      * message queue. It must share the same perQ data.
 710      */
 711     if ( pCurMsgQ->pQData != pMsgQ->pQData )
 712     {
 713         QUEUE_Unlock( pMsgQ );
 714         goto error;
 715     }
 716
 717     /* Save current active window */
 718     prev = PERQDATA_GetActiveWnd( pMsgQ->pQData );
 719     QUEUE_Unlock( pMsgQ );
 720     WIN_ReleaseWndPtr(wndPtr);
 721     WINPOS_SetActiveWindow( hwnd, 0, 0 );
 722     return prev;
 723
 724  error:
 725     WIN_ReleaseWndPtr(wndPtr);
 726     return 0;
 727 }
 728
 729
 730 /*******************************************************************
 731  *              GetForegroundWindow (USER32.@)
 732  */
 733 HWND WINAPI GetForegroundWindow(void)
 734 {
 735     HWND hwndActive = 0;
 736
 737     /* Get the foreground window (active window of hActiveQueue) */
 738     if ( hActiveQueue )
 739     {
 740         MESSAGEQUEUE *pActiveQueue = QUEUE_Lock( hActiveQueue );
 741         if ( pActiveQueue )
 742             hwndActive = PERQDATA_GetActiveWnd( pActiveQueue->pQData );
 743
 744         QUEUE_Unlock( pActiveQueue );
 745     }
 746
 747     return hwndActive;
 748 }
 749
 750 /*******************************************************************
 751  *              SetForegroundWindow (USER32.@)
 752  */
 753 BOOL WINAPI SetForegroundWindow( HWND hwnd )
 754 {
 755     return WINPOS_ChangeActiveWindow( hwnd, FALSE );
 756 }
 757
 758
 759 /*******************************************************************
 760  *              AllowSetForegroundWindow (USER32.@)
 761  */
 762 BOOL WINAPI AllowSetForegroundWindow( DWORD procid )
 763 {
 764     /* FIXME: If Win98/2000 style SetForegroundWindow behavior is
 765      * implemented, then fix this function. */
 766     return TRUE;
 767 }
 768
 769
 770 /*******************************************************************
 771  *              LockSetForegroundWindow (USER32.@)
 772  */
 773 BOOL WINAPI LockSetForegroundWindow( UINT lockcode )
 774 {
 775     /* FIXME: If Win98/2000 style SetForegroundWindow behavior is
 776      * implemented, then fix this function. */
 777     return TRUE;
 778 }
 779
 780
 781 /*******************************************************************
 782  *              SetShellWindow (USER32.@)
 783  */
 784 HWND WINAPI SetShellWindow(HWND hwndshell)
 785 {   WARN("(hWnd=%08x) semi stub\n",hwndshell );
 786
 787     hGlobalShellWindow = WIN_GetFullHandle( hwndshell );
 788     return hGlobalShellWindow;
 789 }
 790
 791
 792 /*******************************************************************
 793  *              GetShellWindow (USER32.@)
 794  */
 795 HWND WINAPI GetShellWindow(void)
 796 {   WARN("(hWnd=%x) semi stub\n",hGlobalShellWindow );
 797
 798     return hGlobalShellWindow;
 799 }
 800
 801
 802 /***********************************************************************
 803  *              BringWindowToTop (USER32.@)
 804  */
 805 BOOL WINAPI BringWindowToTop( HWND hwnd )
 806 {
 807     return SetWindowPos( hwnd, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE );
 808 }
 809
 810
 811 /***********************************************************************
 812  *              MoveWindow (USER32.@)
 813  */
 814 BOOL WINAPI MoveWindow( HWND hwnd, INT x, INT y, INT cx, INT cy,
 815                             BOOL repaint )
 816 {
 817     int flags = SWP_NOZORDER | SWP_NOACTIVATE;
 818     if (!repaint) flags |= SWP_NOREDRAW;
 819     TRACE("%04x %d,%d %dx%d %d\n",
 820             hwnd, x, y, cx, cy, repaint );
 821     return SetWindowPos( hwnd, 0, x, y, cx, cy, flags );
 822 }
 823
 824 /***********************************************************************
 825  *           WINPOS_InitInternalPos
 826  */
 827 static LPINTERNALPOS WINPOS_InitInternalPos( WND* wnd, POINT pt, const RECT *restoreRect )
 828 {
 829     LPINTERNALPOS lpPos = (LPINTERNALPOS) GetPropA( wnd->hwndSelf,
 830                                                       atomInternalPos );
 831     if( !lpPos )
 832     {
 833         /* this happens when the window is minimized/maximized
 834          * for the first time (rectWindow is not adjusted yet) */
 835
 836         lpPos = HeapAlloc( GetProcessHeap(), 0, sizeof(INTERNALPOS) );
 837         if( !lpPos ) return NULL;
 838
 839         SetPropA( wnd->hwndSelf, atomInternalPos, (HANDLE)lpPos );
 840         lpPos->hwndIconTitle = 0; /* defer until needs to be shown */
 841         CONV_RECT32TO16( &wnd->rectWindow, &lpPos->rectNormal );
 842         *(UINT*)&lpPos->ptIconPos = *(UINT*)&lpPos->ptMaxPos = 0xFFFFFFFF;
 843     }
 844
 845     if( wnd->dwStyle & WS_MINIMIZE )
 846         CONV_POINT32TO16( &pt, &lpPos->ptIconPos );
 847     else if( wnd->dwStyle & WS_MAXIMIZE )
 848         CONV_POINT32TO16( &pt, &lpPos->ptMaxPos );
 849     else if( restoreRect )
 850         CONV_RECT32TO16( restoreRect, &lpPos->rectNormal );
 851
 852     return lpPos;
 853 }
 854
 855 /***********************************************************************
 856  *           WINPOS_RedrawIconTitle
 857  */
 858 BOOL WINPOS_RedrawIconTitle( HWND hWnd )
 859 {
 860     LPINTERNALPOS lpPos = (LPINTERNALPOS)GetPropA( hWnd, atomInternalPos );
 861     if( lpPos )
 862     {
 863         if( lpPos->hwndIconTitle )
 864         {
 865             SendMessageA( lpPos->hwndIconTitle, WM_SHOWWINDOW, TRUE, 0);
 866             InvalidateRect( lpPos->hwndIconTitle, NULL, TRUE );
 867             return TRUE;
 868         }
 869     }
 870     return FALSE;
 871 }
 872
 873 /***********************************************************************
 874  *           WINPOS_ShowIconTitle
 875  */
 876 BOOL WINPOS_ShowIconTitle( HWND hwnd, BOOL bShow )
 877 {
 878     LPINTERNALPOS lpPos = (LPINTERNALPOS)GetPropA( hwnd, atomInternalPos );
 879
 880     if( lpPos && !(GetWindowLongA( hwnd, GWL_EXSTYLE) & WS_EX_MANAGED))
 881     {
 882         HWND title = lpPos->hwndIconTitle;
 883
 884         TRACE("0x%04x %i\n", hwnd, (bShow != 0) );
 885
 886         if( !title )
 887             lpPos->hwndIconTitle = title = ICONTITLE_Create( hwnd );
 888         if( bShow )
 889         {
 890             if (!IsWindowVisible(title))
 891             {
 892                 SendMessageA( title, WM_SHOWWINDOW, TRUE, 0 );
 893                 SetWindowPos( title, 0, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE |
 894                               SWP_NOACTIVATE | SWP_NOZORDER | SWP_SHOWWINDOW );
 895             }
 896         }
 897         else ShowWindow( title, SW_HIDE );
 898     }
 899     return FALSE;
 900 }
 901
 902 /*******************************************************************
 903  *           WINPOS_GetMinMaxInfo
 904  *
 905  * Get the minimized and maximized information for a window.
 906  */
 907 void WINPOS_GetMinMaxInfo( HWND hwnd, POINT *maxSize, POINT *maxPos,
 908                            POINT *minTrack, POINT *maxTrack )
 909 {
 910     LPINTERNALPOS lpPos;
 911     MINMAXINFO MinMax;
 912     INT xinc, yinc;
 913     LONG style = GetWindowLongA( hwnd, GWL_STYLE );
 914     LONG exstyle = GetWindowLongA( hwnd, GWL_EXSTYLE );
 915
 916     /* Compute default values */
 917
 918     MinMax.ptMaxSize.x = GetSystemMetrics(SM_CXSCREEN);
 919     MinMax.ptMaxSize.y = GetSystemMetrics(SM_CYSCREEN);
 920     MinMax.ptMinTrackSize.x = GetSystemMetrics(SM_CXMINTRACK);
 921     MinMax.ptMinTrackSize.y = GetSystemMetrics(SM_CYMINTRACK);
 922     MinMax.ptMaxTrackSize.x = GetSystemMetrics(SM_CXSCREEN);
 923     MinMax.ptMaxTrackSize.y = GetSystemMetrics(SM_CYSCREEN);
 924
 925     if (HAS_DLGFRAME( style, exstyle ))
 926     {
 927         xinc = GetSystemMetrics(SM_CXDLGFRAME);
 928         yinc = GetSystemMetrics(SM_CYDLGFRAME);
 929     }
 930     else
 931     {
 932         xinc = yinc = 0;
 933         if (HAS_THICKFRAME(style))
 934         {
 935             xinc += GetSystemMetrics(SM_CXFRAME);
 936             yinc += GetSystemMetrics(SM_CYFRAME);
 937         }
 938         if (style & WS_BORDER)
 939         {
 940             xinc += GetSystemMetrics(SM_CXBORDER);
 941             yinc += GetSystemMetrics(SM_CYBORDER);
 942         }
 943     }
 944     MinMax.ptMaxSize.x += 2 * xinc;
 945     MinMax.ptMaxSize.y += 2 * yinc;
 946
 947     lpPos = (LPINTERNALPOS)GetPropA( hwnd, atomInternalPos );
 948     if( lpPos && !EMPTYPOINT(lpPos->ptMaxPos) )
 949         CONV_POINT16TO32( &lpPos->ptMaxPos, &MinMax.ptMaxPosition );
 950     else
 951     {
 952         MinMax.ptMaxPosition.x = -xinc;
 953         MinMax.ptMaxPosition.y = -yinc;
 954     }
 955
 956     SendMessageA( hwnd, WM_GETMINMAXINFO, 0, (LPARAM)&MinMax );
 957
 958       /* Some sanity checks */
 959
 960     TRACE("%ld %ld / %ld %ld / %ld %ld / %ld %ld\n",
 961                       MinMax.ptMaxSize.x, MinMax.ptMaxSize.y,
 962                       MinMax.ptMaxPosition.x, MinMax.ptMaxPosition.y,
 963                       MinMax.ptMaxTrackSize.x, MinMax.ptMaxTrackSize.y,
 964                       MinMax.ptMinTrackSize.x, MinMax.ptMinTrackSize.y);
 965     MinMax.ptMaxTrackSize.x = max( MinMax.ptMaxTrackSize.x,
 966                                    MinMax.ptMinTrackSize.x );
 967     MinMax.ptMaxTrackSize.y = max( MinMax.ptMaxTrackSize.y,
 968                                    MinMax.ptMinTrackSize.y );
 969
 970     if (maxSize) *maxSize = MinMax.ptMaxSize;
 971     if (maxPos) *maxPos = MinMax.ptMaxPosition;
 972     if (minTrack) *minTrack = MinMax.ptMinTrackSize;
 973     if (maxTrack) *maxTrack = MinMax.ptMaxTrackSize;
 974 }
 975
 976 /***********************************************************************
 977  *              ShowWindowAsync (USER32.@)
 978  *
 979  * doesn't wait; returns immediately.
 980  * used by threads to toggle windows in other (possibly hanging) threads
 981  */
 982 BOOL WINAPI ShowWindowAsync( HWND hwnd, INT cmd )
 983 {
 984     /* FIXME: does ShowWindow() return immediately ? */
 985     return ShowWindow(hwnd, cmd);
 986 }
 987
 988
 989 /***********************************************************************
 990  *              ShowWindow (USER32.@)
 991  */
 992 BOOL WINAPI ShowWindow( HWND hwnd, INT cmd )
 993 {
 994     HWND full_handle;
 995
 996     if ((full_handle = WIN_IsCurrentThread( hwnd )))
 997         return USER_Driver.pShowWindow( full_handle, cmd );
 998     return SendMessageW( hwnd, WM_WINE_SHOWWINDOW, cmd, 0 );
 999 }
1000
1001
1002 /***********************************************************************
1003  *              GetInternalWindowPos (USER.460)
1004  */
1005 UINT16 WINAPI GetInternalWindowPos16( HWND16 hwnd, LPRECT16 rectWnd,
1006                                       LPPOINT16 ptIcon )
1007 {
1008     WINDOWPLACEMENT16 wndpl;
1009     if (GetWindowPlacement16( hwnd, &wndpl ))
1010     {
1011         if (rectWnd) *rectWnd = wndpl.rcNormalPosition;
1012         if (ptIcon)  *ptIcon = wndpl.ptMinPosition;
1013         return wndpl.showCmd;
1014     }
1015     return 0;
1016 }
1017
1018
1019 /***********************************************************************
1020  *              GetInternalWindowPos (USER32.@)
1021  */
1022 UINT WINAPI GetInternalWindowPos( HWND hwnd, LPRECT rectWnd,
1023                                       LPPOINT ptIcon )
1024 {
1025     WINDOWPLACEMENT wndpl;
1026     if (GetWindowPlacement( hwnd, &wndpl ))
1027     {
1028         if (rectWnd) *rectWnd = wndpl.rcNormalPosition;
1029         if (ptIcon)  *ptIcon = wndpl.ptMinPosition;
1030         return wndpl.showCmd;
1031     }
1032     return 0;
1033 }
1034
1035
1036 /***********************************************************************
1037  *              GetWindowPlacement (USER32.@)
1038  *
1039  * Win95:
1040  * Fails if wndpl->length of Win95 (!) apps is invalid.
1041  */
1042 BOOL WINAPI GetWindowPlacement( HWND hwnd, WINDOWPLACEMENT *wndpl )
1043 {
1044     WND *pWnd = WIN_FindWndPtr( hwnd );
1045     LPINTERNALPOS lpPos;
1046
1047     if(!pWnd ) return FALSE;
1048
1049     lpPos = WINPOS_InitInternalPos( pWnd, *(LPPOINT)&pWnd->rectWindow.left, &pWnd->rectWindow );
1050     wndpl->length  = sizeof(*wndpl);
1051     if( pWnd->dwStyle & WS_MINIMIZE )
1052         wndpl->showCmd = SW_SHOWMINIMIZED;
1053     else
1054         wndpl->showCmd = ( pWnd->dwStyle & WS_MAXIMIZE ) ? SW_SHOWMAXIMIZED : SW_SHOWNORMAL ;
1055     if( pWnd->flags & WIN_RESTORE_MAX )
1056         wndpl->flags = WPF_RESTORETOMAXIMIZED;
1057     else
1058         wndpl->flags = 0;
1059     CONV_POINT16TO32( &lpPos->ptIconPos, &wndpl->ptMinPosition );
1060     CONV_POINT16TO32( &lpPos->ptMaxPos, &wndpl->ptMaxPosition );
1061     CONV_RECT16TO32( &lpPos->rectNormal, &wndpl->rcNormalPosition );
1062     WIN_ReleaseWndPtr(pWnd);
1063     return TRUE;
1064 }
1065
1066
1067 /***********************************************************************
1068  *           WINPOS_SetPlacement
1069  */
1070 static BOOL WINPOS_SetPlacement( HWND hwnd, const WINDOWPLACEMENT *wndpl, UINT flags )
1071 {
1072     WND *pWnd = WIN_FindWndPtr( hwnd );
1073     if( pWnd )
1074     {
1075         LPINTERNALPOS lpPos = (LPINTERNALPOS)WINPOS_InitInternalPos( pWnd,
1076                              *(LPPOINT)&pWnd->rectWindow.left, &pWnd->rectWindow );
1077
1078         if( flags & PLACE_MIN ) CONV_POINT32TO16( &wndpl->ptMinPosition, &lpPos->ptIconPos );
1079         if( flags & PLACE_MAX ) CONV_POINT32TO16( &wndpl->ptMaxPosition, &lpPos->ptMaxPos );
1080         if( flags & PLACE_RECT) CONV_RECT32TO16( &wndpl->rcNormalPosition, &lpPos->rectNormal );
1081
1082         if( pWnd->dwStyle & WS_MINIMIZE )
1083         {
1084             WINPOS_ShowIconTitle( pWnd->hwndSelf, FALSE );
1085             if( wndpl->flags & WPF_SETMINPOSITION && !EMPTYPOINT(lpPos->ptIconPos))
1086                 SetWindowPos( hwnd, 0, lpPos->ptIconPos.x, lpPos->ptIconPos.y,
1087                                 0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
1088         }
1089         else if( pWnd->dwStyle & WS_MAXIMIZE )
1090         {
1091             if( !EMPTYPOINT(lpPos->ptMaxPos) )
1092                 SetWindowPos( hwnd, 0, lpPos->ptMaxPos.x, lpPos->ptMaxPos.y,
1093                                 0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE );
1094         }
1095         else if( flags & PLACE_RECT )
1096                 SetWindowPos( hwnd, 0, lpPos->rectNormal.left, lpPos->rectNormal.top,
1097                                 lpPos->rectNormal.right - lpPos->rectNormal.left,
1098                                 lpPos->rectNormal.bottom - lpPos->rectNormal.top,
1099                                 SWP_NOZORDER | SWP_NOACTIVATE );
1100
1101         ShowWindow( hwnd, wndpl->showCmd );
1102         if( IsWindow(hwnd) && pWnd->dwStyle & WS_MINIMIZE )
1103         {
1104             if( pWnd->dwStyle & WS_VISIBLE ) WINPOS_ShowIconTitle( pWnd->hwndSelf, TRUE );
1105
1106             /* SDK: ...valid only the next time... */
1107             if( wndpl->flags & WPF_RESTORETOMAXIMIZED ) pWnd->flags |= WIN_RESTORE_MAX;
1108         }
1109         WIN_ReleaseWndPtr(pWnd);
1110         return TRUE;
1111     }
1112     return FALSE;
1113 }
1114
1115
1116 /***********************************************************************
1117  *              SetWindowPlacement (USER32.@)
1118  *
1119  * Win95:
1120  * Fails if wndpl->length of Win95 (!) apps is invalid.
1121  */
1122 BOOL WINAPI SetWindowPlacement( HWND hwnd, const WINDOWPLACEMENT *wpl )
1123 {
1124     if (!wpl) return FALSE;
1125     return WINPOS_SetPlacement( hwnd, wpl, PLACE_MIN | PLACE_MAX | PLACE_RECT );
1126 }
1127
1128
1129 /***********************************************************************
1130  *              AnimateWindow (USER32.@)
1131  *              Shows/Hides a window with an animation
1132  *              NO ANIMATION YET
1133  */
1134 BOOL WINAPI AnimateWindow(HWND hwnd, DWORD dwTime, DWORD dwFlags)
1135 {
1136         FIXME("partial stub\n");
1137
1138         /* If trying to show/hide and it's already   *
1139          * shown/hidden or invalid window, fail with *
1140          * invalid parameter                         */
1141         if(!IsWindow(hwnd) ||
1142            (IsWindowVisible(hwnd) && !(dwFlags & AW_HIDE)) ||
1143            (!IsWindowVisible(hwnd) && (dwFlags & AW_HIDE)))
1144         {
1145                 SetLastError(ERROR_INVALID_PARAMETER);
1146                 return FALSE;
1147         }
1148
1149         ShowWindow(hwnd, (dwFlags & AW_HIDE) ? SW_HIDE : ((dwFlags & AW_ACTIVATE) ? SW_SHOW : SW_SHOWNA));
1150
1151         return TRUE;
1152 }
1153
1154 /***********************************************************************
1155  *              SetInternalWindowPos (USER32.@)
1156  */
1157 void WINAPI SetInternalWindowPos( HWND hwnd, UINT showCmd,
1158                                     LPRECT rect, LPPOINT pt )
1159 {
1160     if( IsWindow(hwnd) )
1161     {
1162         WINDOWPLACEMENT wndpl;
1163         UINT flags;
1164
1165         wndpl.length  = sizeof(wndpl);
1166         wndpl.showCmd = showCmd;
1167         wndpl.flags = flags = 0;
1168
1169         if( pt )
1170         {
1171             flags |= PLACE_MIN;
1172             wndpl.flags |= WPF_SETMINPOSITION;
1173             wndpl.ptMinPosition = *pt;
1174         }
1175         if( rect )
1176         {
1177             flags |= PLACE_RECT;
1178             wndpl.rcNormalPosition = *rect;
1179         }
1180         WINPOS_SetPlacement( hwnd, &wndpl, flags );
1181     }
1182 }
1183
1184 /*******************************************************************
1185  *         WINPOS_SetActiveWindow
1186  *
1187  * SetActiveWindow() back-end. This is the only function that
1188  * can assign active status to a window. It must be called only
1189  * for the top level windows.
1190  */
1191 BOOL WINPOS_SetActiveWindow( HWND hWnd, BOOL fMouse, BOOL fChangeFocus)
1192 {
1193     WND*     wndPtr=0, *wndTemp;
1194     HQUEUE16 hOldActiveQueue, hNewActiveQueue;
1195     MESSAGEQUEUE *pOldActiveQueue = 0, *pNewActiveQueue = 0;
1196     WORD     wIconized = 0;
1197     HWND     hwndActive = 0;
1198     BOOL     bRet = 0;
1199
1200     TRACE("(%04x, %d, %d)\n", hWnd, fMouse, fChangeFocus );
1201
1202     /* Get current active window from the active queue */
1203     if ( hActiveQueue )
1204     {
1205         pOldActiveQueue = QUEUE_Lock( hActiveQueue );
1206         if ( pOldActiveQueue )
1207             hwndActive = PERQDATA_GetActiveWnd( pOldActiveQueue->pQData );
1208     }
1209
1210     if ((wndPtr = WIN_FindWndPtr(hWnd)))
1211         hWnd = wndPtr->hwndSelf;  /* make it a full handle */
1212
1213     /* paranoid checks */
1214     if( hWnd == GetDesktopWindow() || (bRet = (hWnd == hwndActive)) )
1215         goto CLEANUP_END;
1216
1217 /*  if (wndPtr && (GetFastQueue16() != wndPtr->hmemTaskQ))
1218  *      return 0;
1219  */
1220     hOldActiveQueue = hActiveQueue;
1221
1222     if( (wndTemp = WIN_FindWndPtr(hwndActive)) )
1223     {
1224         wIconized = HIWORD(wndTemp->dwStyle & WS_MINIMIZE);
1225         WIN_ReleaseWndPtr(wndTemp);
1226     }
1227     else
1228         TRACE("no current active window.\n");
1229
1230     /* call CBT hook chain */
1231     if (HOOK_IsHooked( WH_CBT ))
1232     {
1233         CBTACTIVATESTRUCT cbt;
1234         cbt.fMouse     = fMouse;
1235         cbt.hWndActive = hwndActive;
1236         if (HOOK_CallHooksA( WH_CBT, HCBT_ACTIVATE, (WPARAM)hWnd, (LPARAM)&cbt )) goto CLEANUP_END;
1237     }
1238
1239     /* set prev active wnd to current active wnd and send notification */
1240     if ((hwndPrevActive = hwndActive) && IsWindow(hwndPrevActive))
1241     {
1242         MESSAGEQUEUE *pTempActiveQueue = 0;
1243
1244         if (!SendMessageA( hwndPrevActive, WM_NCACTIVATE, FALSE, 0 ))
1245         {
1246             if (GetSysModalWindow16() != WIN_Handle16(hWnd)) goto CLEANUP_END;
1247             /* disregard refusal if hWnd is sysmodal */
1248         }
1249
1250         SendMessageA( hwndPrevActive, WM_ACTIVATE,
1251                         MAKEWPARAM( WA_INACTIVE, wIconized ),
1252                         (LPARAM)hWnd );
1253
1254         /* check if something happened during message processing
1255          * (global active queue may have changed)
1256          */
1257         pTempActiveQueue = QUEUE_Lock( hActiveQueue );
1258         if(!pTempActiveQueue)
1259             goto CLEANUP_END;
1260
1261         hwndActive = PERQDATA_GetActiveWnd( pTempActiveQueue->pQData );
1262         QUEUE_Unlock( pTempActiveQueue );
1263         if( hwndPrevActive != hwndActive )
1264             goto CLEANUP_END;
1265     }
1266
1267     /* Set new active window in the message queue */
1268     hwndActive = hWnd;
1269     if ( wndPtr )
1270     {
1271         pNewActiveQueue = QUEUE_Lock( wndPtr->hmemTaskQ );
1272         if ( pNewActiveQueue )
1273             PERQDATA_SetActiveWnd( pNewActiveQueue->pQData, hwndActive );
1274     }
1275     else /* have to do this or MDI frame activation goes to hell */
1276         if( pOldActiveQueue )
1277             PERQDATA_SetActiveWnd( pOldActiveQueue->pQData, 0 );
1278
1279     /* send palette messages */
1280     if (hWnd && SendMessageW( hWnd, WM_QUERYNEWPALETTE, 0, 0L))
1281         SendMessageW( HWND_BROADCAST, WM_PALETTEISCHANGING, (WPARAM)hWnd, 0 );
1282
1283     /* if prev wnd is minimized redraw icon title */
1284     if( IsIconic( hwndPrevActive ) ) WINPOS_RedrawIconTitle(hwndPrevActive);
1285
1286     /* managed windows will get ConfigureNotify event */
1287     if (wndPtr && !(wndPtr->dwStyle & WS_CHILD) && !(wndPtr->dwExStyle & WS_EX_MANAGED))
1288     {
1289         /* check Z-order and bring hWnd to the top */
1290         HWND tmp = GetTopWindow(0);
1291         while (tmp && !(GetWindowLongA( tmp, GWL_STYLE ) & WS_VISIBLE))
1292             tmp = GetWindow( tmp, GW_HWNDNEXT );
1293
1294         if( tmp != hWnd )
1295             SetWindowPos(hWnd, HWND_TOP, 0,0,0,0,
1296                            SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE );
1297         if (!IsWindow(hWnd))
1298             goto CLEANUP;
1299     }
1300
1301     /* Get a handle to the new active queue */
1302     hNewActiveQueue = wndPtr ? wndPtr->hmemTaskQ : 0;
1303
1304     /* send WM_ACTIVATEAPP if necessary */
1305     if (hOldActiveQueue != hNewActiveQueue)
1306     {
1307         HWND *list, *phwnd;
1308         DWORD old_thread = GetWindowThreadProcessId( hwndPrevActive, NULL );
1309         DWORD new_thread = GetWindowThreadProcessId( hwndActive, NULL );
1310
1311         if ((list = WIN_ListChildren( GetDesktopWindow() )))
1312         {
1313             for (phwnd = list; *phwnd; phwnd++)
1314             {
1315                 if (!IsWindow( *phwnd )) continue;
1316                 if (GetWindowThreadProcessId( *phwnd, NULL ) == old_thread)
1317                     SendMessageW( *phwnd, WM_ACTIVATEAPP, 0, new_thread );
1318             }
1319             HeapFree( GetProcessHeap(), 0, list );
1320         }
1321
1322         hActiveQueue = hNewActiveQueue;
1323
1324         if ((list = WIN_ListChildren( GetDesktopWindow() )))
1325         {
1326             for (phwnd = list; *phwnd; phwnd++)
1327             {
1328                 if (!IsWindow( *phwnd )) continue;
1329                 if (GetWindowThreadProcessId( *phwnd, NULL ) == new_thread)
1330                     SendMessageW( *phwnd, WM_ACTIVATEAPP, 1, old_thread );
1331             }
1332             HeapFree( GetProcessHeap(), 0, list );
1333         }
1334
1335         if (hWnd && !IsWindow(hWnd)) goto CLEANUP;
1336     }
1337
1338     if (hWnd)
1339     {
1340         /* walk up to the first unowned window */
1341         HWND tmp = GetAncestor( hWnd, GA_ROOTOWNER );
1342         wndTemp = WIN_FindWndPtr( tmp );
1343         /* and set last active owned popup */
1344         wndTemp->hwndLastActive = hWnd;
1345
1346         wIconized = HIWORD(wndTemp->dwStyle & WS_MINIMIZE);
1347         WIN_ReleaseWndPtr(wndTemp);
1348         SendMessageA( hWnd, WM_NCACTIVATE, TRUE, 0 );
1349         SendMessageA( hWnd, WM_ACTIVATE,
1350                  MAKEWPARAM( (fMouse) ? WA_CLICKACTIVE : WA_ACTIVE, wIconized),
1351                  (LPARAM)hwndPrevActive );
1352         if( !IsWindow(hWnd) ) goto CLEANUP;
1353     }
1354
1355     /* change focus if possible */
1356     if ( fChangeFocus )
1357     {
1358         if ( pNewActiveQueue )
1359         {
1360             HWND hOldFocus = PERQDATA_GetFocusWnd( pNewActiveQueue->pQData );
1361
1362             if ( hOldFocus && GetAncestor( hOldFocus, GA_ROOT ) != hwndActive )
1363                 FOCUS_SwitchFocus( pNewActiveQueue, hOldFocus,
1364                                    (wndPtr && (wndPtr->dwStyle & WS_MINIMIZE))?
1365                                    0 : hwndActive );
1366         }
1367
1368         if ( pOldActiveQueue &&
1369              ( !pNewActiveQueue ||
1370                 pNewActiveQueue->pQData != pOldActiveQueue->pQData ) )
1371         {
1372             HWND hOldFocus = PERQDATA_GetFocusWnd( pOldActiveQueue->pQData );
1373             if ( hOldFocus )
1374                 FOCUS_SwitchFocus( pOldActiveQueue, hOldFocus, 0 );
1375         }
1376     }
1377
1378     if( !hwndPrevActive && wndPtr )
1379     {
1380         if (USER_Driver.pForceWindowRaise) USER_Driver.pForceWindowRaise( wndPtr->hwndSelf );
1381     }
1382
1383     /* if active wnd is minimized redraw icon title */
1384     if( IsIconic(hwndActive) ) WINPOS_RedrawIconTitle(hwndActive);
1385
1386     bRet = (hWnd == hwndActive);  /* Success? */
1387
1388 CLEANUP: /* Unlock the message queues before returning */
1389
1390     if ( pNewActiveQueue )
1391         QUEUE_Unlock( pNewActiveQueue );
1392
1393 CLEANUP_END:
1394
1395     if ( pOldActiveQueue )
1396         QUEUE_Unlock( pOldActiveQueue );
1397
1398     WIN_ReleaseWndPtr(wndPtr);
1399     return bRet;
1400 }
1401
1402 /*******************************************************************
1403  *         WINPOS_ActivateOtherWindow
1404  *
1405  *  Activates window other than pWnd.
1406  */
1407 BOOL WINPOS_ActivateOtherWindow(HWND hwnd)
1408 {
1409     BOOL bRet = 0;
1410     HWND hwndActive = 0;
1411     HWND hwndTo = 0;
1412     HWND owner;
1413
1414     /* Get current active window from the active queue */
1415     if ( hActiveQueue )
1416     {
1417         MESSAGEQUEUE *pActiveQueue = QUEUE_Lock( hActiveQueue );
1418         if ( pActiveQueue )
1419         {
1420             hwndActive = PERQDATA_GetActiveWnd( pActiveQueue->pQData );
1421             QUEUE_Unlock( pActiveQueue );
1422         }
1423     }
1424
1425     if (!(hwnd = WIN_IsCurrentThread( hwnd ))) return 0;
1426
1427     if( hwnd == hwndPrevActive )
1428         hwndPrevActive = 0;
1429
1430     if( hwndActive != hwnd && (hwndActive || USER_IsExitingThread( GetCurrentThreadId() )))
1431         return 0;
1432
1433     if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_POPUP) ||
1434         !(owner = GetWindow( hwnd, GW_OWNER )) ||
1435         !WINPOS_CanActivate((hwndTo = GetAncestor( owner, GA_ROOT ))) )
1436     {
1437         HWND tmp = GetAncestor( hwnd, GA_ROOT );
1438         hwndTo = hwndPrevActive;
1439
1440         while( !WINPOS_CanActivate(hwndTo) )
1441         {
1442             /* by now owned windows should've been taken care of */
1443             tmp = hwndTo = GetWindow( tmp, GW_HWNDNEXT );
1444             if( !hwndTo ) break;
1445         }
1446     }
1447
1448     bRet = WINPOS_SetActiveWindow( hwndTo, FALSE, TRUE );
1449
1450     hwndPrevActive = 0;
1451     return bRet;
1452 }
1453
1454 /*******************************************************************
1455  *         WINPOS_ChangeActiveWindow
1456  *
1457  */
1458 BOOL WINPOS_ChangeActiveWindow( HWND hWnd, BOOL mouseMsg )
1459 {
1460     WND *wndPtr;
1461     HWND hwndActive = 0;
1462
1463     /* Get current active window from the active queue */
1464     if ( hActiveQueue )
1465     {
1466         MESSAGEQUEUE *pActiveQueue = QUEUE_Lock( hActiveQueue );
1467         if ( pActiveQueue )
1468         {
1469             hwndActive = PERQDATA_GetActiveWnd( pActiveQueue->pQData );
1470             QUEUE_Unlock( pActiveQueue );
1471         }
1472     }
1473
1474     if (!hWnd)
1475         return WINPOS_SetActiveWindow( 0, mouseMsg, TRUE );
1476
1477     if (!(wndPtr = WIN_FindWndPtr(hWnd))) return FALSE;
1478     hWnd = wndPtr->hwndSelf;
1479
1480     /* child windows get WM_CHILDACTIVATE message */
1481     if( (wndPtr->dwStyle & (WS_CHILD | WS_POPUP)) == WS_CHILD )
1482     {
1483         WIN_ReleaseWndPtr(wndPtr);
1484         return SendMessageA(hWnd, WM_CHILDACTIVATE, 0, 0L);
1485     }
1486     WIN_ReleaseWndPtr(wndPtr);
1487
1488     if( hWnd == hwndActive ) return FALSE;
1489
1490     return WINPOS_SetActiveWindow(hWnd ,mouseMsg ,TRUE);
1491 }
1492
1493
1494 /***********************************************************************
1495  *           WINPOS_HandleWindowPosChanging16
1496  *
1497  * Default handling for a WM_WINDOWPOSCHANGING. Called from DefWindowProc().
1498  */
1499 LONG WINPOS_HandleWindowPosChanging16( HWND hwnd, WINDOWPOS16 *winpos )
1500 {
1501     POINT maxSize, minTrack;
1502     LONG style = GetWindowLongA( hwnd, GWL_STYLE );
1503
1504     if (winpos->flags & SWP_NOSIZE) return 0;
1505     if ((style & WS_THICKFRAME) || ((style & (WS_POPUP | WS_CHILD)) == 0))
1506     {
1507         WINPOS_GetMinMaxInfo( hwnd, &maxSize, NULL, &minTrack, NULL );
1508         if (maxSize.x < winpos->cx) winpos->cx = maxSize.x;
1509         if (maxSize.y < winpos->cy) winpos->cy = maxSize.y;
1510         if (!(style & WS_MINIMIZE))
1511         {
1512             if (winpos->cx < minTrack.x ) winpos->cx = minTrack.x;
1513             if (winpos->cy < minTrack.y ) winpos->cy = minTrack.y;
1514         }
1515     }
1516     return 0;
1517 }
1518
1519
1520 /***********************************************************************
1521  *           WINPOS_HandleWindowPosChanging
1522  *
1523  * Default handling for a WM_WINDOWPOSCHANGING. Called from DefWindowProc().
1524  */
1525 LONG WINPOS_HandleWindowPosChanging( HWND hwnd, WINDOWPOS *winpos )
1526 {
1527     POINT maxSize, minTrack;
1528     LONG style = GetWindowLongA( hwnd, GWL_STYLE );
1529
1530     if (winpos->flags & SWP_NOSIZE) return 0;
1531     if ((style & WS_THICKFRAME) || ((style & (WS_POPUP | WS_CHILD)) == 0))
1532     {
1533         WINPOS_GetMinMaxInfo( hwnd, &maxSize, NULL, &minTrack, NULL );
1534         winpos->cx = min( winpos->cx, maxSize.x );
1535         winpos->cy = min( winpos->cy, maxSize.y );
1536         if (!(style & WS_MINIMIZE))
1537         {
1538             if (winpos->cx < minTrack.x ) winpos->cx = minTrack.x;
1539             if (winpos->cy < minTrack.y ) winpos->cy = minTrack.y;
1540         }
1541     }
1542     return 0;
1543 }
1544
1545
1546 /***********************************************************************
1547  *              SetWindowPos (USER32.@)
1548  */
1549 BOOL WINAPI SetWindowPos( HWND hwnd, HWND hwndInsertAfter,
1550                           INT x, INT y, INT cx, INT cy, UINT flags )
1551 {
1552     WINDOWPOS winpos;
1553
1554     winpos.hwnd = hwnd;
1555     winpos.hwndInsertAfter = hwndInsertAfter;
1556     winpos.x = x;
1557     winpos.y = y;
1558     winpos.cx = cx;
1559     winpos.cy = cy;
1560     winpos.flags = flags;
1561     if (WIN_IsCurrentThread( hwnd )) return USER_Driver.pSetWindowPos( &winpos );
1562     return SendMessageW( winpos.hwnd, WM_WINE_SETWINDOWPOS, 0, (LPARAM)&winpos );
1563 }
1564
1565
1566 /***********************************************************************
1567  *              BeginDeferWindowPos (USER32.@)
1568  */
1569 HDWP WINAPI BeginDeferWindowPos( INT count )
1570 {
1571     HDWP handle;
1572     DWP *pDWP;
1573
1574     if (count < 0)
1575     {
1576         SetLastError(ERROR_INVALID_PARAMETER);
1577         return 0;
1578     }
1579     /* Windows allows zero count, in which case it allocates context for 8 moves */
1580     if (count == 0) count = 8;
1581
1582     handle = USER_HEAP_ALLOC( sizeof(DWP) + (count-1)*sizeof(WINDOWPOS) );
1583     if (!handle) return 0;
1584     pDWP = (DWP *) USER_HEAP_LIN_ADDR( handle );
1585     pDWP->actualCount    = 0;
1586     pDWP->suggestedCount = count;
1587     pDWP->valid          = TRUE;
1588     pDWP->wMagic         = DWP_MAGIC;
1589     pDWP->hwndParent     = 0;
1590     return handle;
1591 }
1592
1593
1594 /***********************************************************************
1595  *              DeferWindowPos (USER32.@)
1596  */
1597 HDWP WINAPI DeferWindowPos( HDWP hdwp, HWND hwnd, HWND hwndAfter,
1598                                 INT x, INT y, INT cx, INT cy,
1599                                 UINT flags )
1600 {
1601     DWP *pDWP;
1602     int i;
1603     HDWP newhdwp = hdwp,retvalue;
1604
1605     hwnd = WIN_GetFullHandle( hwnd );
1606     if (hwnd == GetDesktopWindow()) return 0;
1607
1608     if (!(pDWP = USER_HEAP_LIN_ADDR( hdwp ))) return 0;
1609
1610     USER_Lock();
1611
1612     for (i = 0; i < pDWP->actualCount; i++)
1613     {
1614         if (pDWP->winPos[i].hwnd == hwnd)
1615         {
1616               /* Merge with the other changes */
1617             if (!(flags & SWP_NOZORDER))
1618             {
1619                 pDWP->winPos[i].hwndInsertAfter = hwndAfter;
1620             }
1621             if (!(flags & SWP_NOMOVE))
1622             {
1623                 pDWP->winPos[i].x = x;
1624                 pDWP->winPos[i].y = y;
1625             }
1626             if (!(flags & SWP_NOSIZE))
1627             {
1628                 pDWP->winPos[i].cx = cx;
1629                 pDWP->winPos[i].cy = cy;
1630             }
1631             pDWP->winPos[i].flags &= flags | ~(SWP_NOSIZE | SWP_NOMOVE |
1632                                                SWP_NOZORDER | SWP_NOREDRAW |
1633                                                SWP_NOACTIVATE | SWP_NOCOPYBITS|
1634                                                SWP_NOOWNERZORDER);
1635             pDWP->winPos[i].flags |= flags & (SWP_SHOWWINDOW | SWP_HIDEWINDOW |
1636                                               SWP_FRAMECHANGED);
1637             retvalue = hdwp;
1638             goto END;
1639         }
1640     }
1641     if (pDWP->actualCount >= pDWP->suggestedCount)
1642     {
1643         newhdwp = USER_HEAP_REALLOC( hdwp,
1644                       sizeof(DWP) + pDWP->suggestedCount*sizeof(WINDOWPOS) );
1645         if (!newhdwp)
1646         {
1647             retvalue = 0;
1648             goto END;
1649         }
1650         pDWP = (DWP *) USER_HEAP_LIN_ADDR( newhdwp );
1651         pDWP->suggestedCount++;
1652     }
1653     pDWP->winPos[pDWP->actualCount].hwnd = hwnd;
1654     pDWP->winPos[pDWP->actualCount].hwndInsertAfter = hwndAfter;
1655     pDWP->winPos[pDWP->actualCount].x = x;
1656     pDWP->winPos[pDWP->actualCount].y = y;
1657     pDWP->winPos[pDWP->actualCount].cx = cx;
1658     pDWP->winPos[pDWP->actualCount].cy = cy;
1659     pDWP->winPos[pDWP->actualCount].flags = flags;
1660     pDWP->actualCount++;
1661     retvalue = newhdwp;
1662 END:
1663     USER_Unlock();
1664     return retvalue;
1665 }
1666
1667
1668 /***********************************************************************
1669  *              EndDeferWindowPos (USER32.@)
1670  */
1671 BOOL WINAPI EndDeferWindowPos( HDWP hdwp )
1672 {
1673     DWP *pDWP;
1674     WINDOWPOS *winpos;
1675     BOOL res = TRUE;
1676     int i;
1677
1678     pDWP = (DWP *) USER_HEAP_LIN_ADDR( hdwp );
1679     if (!pDWP) return FALSE;
1680     for (i = 0, winpos = pDWP->winPos; i < pDWP->actualCount; i++, winpos++)
1681     {
1682         if (!(res = USER_Driver.pSetWindowPos( winpos ))) break;
1683     }
1684     USER_HEAP_FREE( hdwp );
1685     return res;
1686 }
1687
1688
1689 /***********************************************************************
1690  *              TileChildWindows (USER.199)
1691  */
1692 void WINAPI TileChildWindows16( HWND16 parent, WORD action )
1693 {
1694     FIXME("(%04x, %d): stub\n", parent, action);
1695 }
1696
1697 /***********************************************************************
1698  *              CascadeChildWindows (USER.198)
1699  */
1700 void WINAPI CascadeChildWindows16( HWND16 parent, WORD action )
1701 {
1702     FIXME("(%04x, %d): stub\n", parent, action);
1703 }
1704
1705 /***********************************************************************
1706  *              SetProgmanWindow (USER32.@)
1707  */
1708 HWND WINAPI SetProgmanWindow ( HWND hwnd )
1709 {
1710         hGlobalProgmanWindow = hwnd;
1711         return hGlobalProgmanWindow;
1712 }
1713
1714 /***********************************************************************
1715  *              GetProgmanWindow (USER32.@)
1716  */
1717 HWND WINAPI GetProgmanWindow(void)
1718 {
1719         return hGlobalProgmanWindow;
1720 }
1721
1722 /***********************************************************************
1723  *              SetShellWindowEx (USER32.@)
1724  * hwndProgman =  Progman[Program Manager]
1725  *                |-> SHELLDLL_DefView
1726  * hwndListView = |   |-> SysListView32
1727  *                |   |   |-> tooltips_class32
1728  *                |   |
1729  *                |   |-> SysHeader32
1730  *                |
1731  *                |-> ProxyTarget
1732  */
1733 HWND WINAPI SetShellWindowEx ( HWND hwndProgman, HWND hwndListView )
1734 {
1735         FIXME("0x%08x 0x%08x stub\n",hwndProgman ,hwndListView );
1736         hGlobalShellWindow = hwndProgman;
1737         return hGlobalShellWindow;
1738
1739 }
1740
1741 /***********************************************************************
1742  *              SetTaskmanWindow (USER32.@)
1743  * NOTES
1744  *   hwnd = MSTaskSwWClass
1745  *          |-> SysTabControl32
1746  */
1747 HWND WINAPI SetTaskmanWindow ( HWND hwnd )
1748 {
1749         hGlobalTaskmanWindow = hwnd;
1750         return hGlobalTaskmanWindow;
1751 }
1752
1753 /***********************************************************************
1754  *              GetTaskmanWindow (USER32.@)
1755  */
1756 HWND WINAPI GetTaskmanWindow(void)
1757 {
1758         return hGlobalTaskmanWindow;
1759 }