/* * Window related functions * * Copyright 1993, 1994 Alexandre Julliard */ #include #include #include "wine/winbase16.h" #include "options.h" #include "class.h" #include "win.h" #include "heap.h" #include "user.h" #include "dce.h" #include "sysmetrics.h" #include "cursoricon.h" #include "hook.h" #include "menu.h" #include "message.h" #include "nonclient.h" #include "queue.h" #include "winpos.h" #include "shm_main_blk.h" #include "dde_proc.h" #include "clipboard.h" #include "winproc.h" #include "task.h" #include "thread.h" #include "process.h" #include "debug.h" #include "winerror.h" #include "mdi.h" #include "local.h" #include "desktop.h" /**********************************************************************/ WND_DRIVER *WND_Driver = NULL; /* Desktop window */ static WND *pWndDesktop = NULL; static HWND hwndSysModal = 0; static WORD wDragWidth = 4; static WORD wDragHeight= 3; /* thread safeness */ static CRITICAL_SECTION WIN_CritSection; /*********************************************************************** * WIN_LockWnds * * Locks access to all WND structures for thread safeness */ void WIN_LockWnds() { EnterCriticalSection(&WIN_CritSection); } /*********************************************************************** * WIN_UnlockWnds * * Unlocks access to all WND structures */ void WIN_UnlockWnds() { LeaveCriticalSection(&WIN_CritSection); } /*********************************************************************** * WIN_SuspendWndsLock * * Suspend the lock on WND structures. * Returns the number of locks suspended */ int WIN_SuspendWndsLock() { int isuspendedLocks = 0; /* make sure that the lock is not suspended by different thread than the owning thread */ if(WIN_CritSection.OwningThread != GetCurrentThreadId()) { return 0; } /* set the value of isuspendedlock to the actual recursion count of the critical section */ isuspendedLocks = WIN_CritSection.RecursionCount; /* set the recursion count of the critical section to 1 so the owning thread will be able to leave it */ WIN_CritSection.RecursionCount = 1; /* leave critical section*/ WIN_UnlockWnds(); return isuspendedLocks; } /*********************************************************************** * WIN_RestoreWndsLock * * Restore the suspended locks on WND structures */ void WIN_RestoreWndsLock(int ipreviousLocks) { if(!ipreviousLocks) { return; } /* restore the lock */ WIN_LockWnds(); /* set the recursion count of the critical section to the value of suspended locks (given by WIN_SuspendWndsLock())*/ WIN_CritSection.RecursionCount = ipreviousLocks; } /*********************************************************************** * WIN_FindWndPtr * * Return a pointer to the WND structure corresponding to a HWND. */ WND * WIN_FindWndPtr( HWND hwnd ) { WND * ptr; if (!hwnd || HIWORD(hwnd)) goto error2; ptr = (WND *) USER_HEAP_LIN_ADDR( hwnd ); /* Lock all WND structures for thread safeness*/ WIN_LockWnds(); /*and increment destruction monitoring*/ ptr->irefCount++; if (ptr->dwMagic != WND_MAGIC) goto error; if (ptr->hwndSelf != hwnd) { ERR( win, "Can't happen: hwnd %04x self pointer is %04x\n",hwnd, ptr->hwndSelf ); goto error; } /* returns a locked pointer */ return ptr; error: /* Unlock all WND structures for thread safeness*/ WIN_UnlockWnds(); /* and decrement destruction monitoring value */ ptr->irefCount--; error2: if ( hwnd!=0 ) SetLastError( ERROR_INVALID_WINDOW_HANDLE ); return NULL; } /*********************************************************************** * WIN_LockWndPtr * * Use in case the wnd ptr is not initialized with WIN_FindWndPtr * but by initWndPtr; * Returns the locked initialisation pointer */ WND *WIN_LockWndPtr(WND *initWndPtr) { if(!initWndPtr) return 0; /* Lock all WND structures for thread safeness*/ WIN_LockWnds(); /*and increment destruction monitoring*/ initWndPtr->irefCount++; return initWndPtr; } /*********************************************************************** * WIN_ReleaseWndPtr * * Release the pointer to the WND structure. */ void WIN_ReleaseWndPtr(WND *wndPtr) { if(!wndPtr) return; /*Decrement destruction monitoring value*/ wndPtr->irefCount--; /* Check if it's time to release the memory*/ /* Check if it's time to release the memory*/ if(wndPtr->irefCount == 0 && !wndPtr->dwMagic) { /* Release memory */ USER_HEAP_FREE( wndPtr->hwndSelf); } else if(wndPtr->irefCount < 0) { /* This else if is useful to monitor the WIN_ReleaseWndPtr function */ TRACE(win,"forgot a Lock on %p somewhere\n",wndPtr); } /*unlock all WND structures for thread safeness*/ WIN_UnlockWnds(); } /*********************************************************************** * WIN_UpdateWndPtr * * Updates the value of oldPtr to newPtr. */ void WIN_UpdateWndPtr(WND **oldPtr, WND *newPtr) { WND *tmpWnd = NULL; tmpWnd = WIN_LockWndPtr(newPtr); WIN_ReleaseWndPtr(*oldPtr); *oldPtr = tmpWnd; } /*********************************************************************** * WIN_DumpWindow * * Dump the content of a window structure to stderr. */ void WIN_DumpWindow( HWND hwnd ) { WND *ptr; char className[80]; int i; if (!(ptr = WIN_FindWndPtr( hwnd ))) { WARN( win, "%04x is not a window handle\n", hwnd ); return; } if (!GetClassNameA( hwnd, className, sizeof(className ) )) strcpy( className, "#NULL#" ); TRACE( win, "Window %04x (%p):\n", hwnd, ptr ); DUMP( "next=%p child=%p parent=%p owner=%p class=%p '%s'\n" "inst=%04x taskQ=%04x updRgn=%04x active=%04x dce=%p idmenu=%08x\n" "style=%08lx exstyle=%08lx wndproc=%08x text='%s'\n" "client=%d,%d-%d,%d window=%d,%d-%d,%d" "sysmenu=%04x flags=%04x props=%p vscroll=%p hscroll=%p\n", ptr->next, ptr->child, ptr->parent, ptr->owner, ptr->class, className, ptr->hInstance, ptr->hmemTaskQ, ptr->hrgnUpdate, ptr->hwndLastActive, ptr->dce, ptr->wIDmenu, ptr->dwStyle, ptr->dwExStyle, (UINT)ptr->winproc, ptr->text ? ptr->text : "", ptr->rectClient.left, ptr->rectClient.top, ptr->rectClient.right, ptr->rectClient.bottom, ptr->rectWindow.left, ptr->rectWindow.top, ptr->rectWindow.right, ptr->rectWindow.bottom, ptr->hSysMenu, ptr->flags, ptr->pProp, ptr->pVScroll, ptr->pHScroll ); if (ptr->class->cbWndExtra) { DUMP( "extra bytes:" ); for (i = 0; i < ptr->class->cbWndExtra; i++) DUMP( " %02x", *((BYTE*)ptr->wExtra+i) ); DUMP( "\n" ); } DUMP( "\n" ); WIN_ReleaseWndPtr(ptr); } /*********************************************************************** * WIN_WalkWindows * * Walk the windows tree and print each window on stderr. */ void WIN_WalkWindows( HWND hwnd, int indent ) { WND *ptr; char className[80]; ptr = hwnd ? WIN_FindWndPtr( hwnd ) : WIN_GetDesktop(); if (!ptr) { WARN( win, "Invalid window handle %04x\n", hwnd ); return; } if (!indent) /* first time around */ DUMP( "%-16.16s %-8.8s %-6.6s %-17.17s %-8.8s %s\n", "hwnd", " wndPtr", "queue", "Class Name", " Style", " WndProc" " Text"); while (ptr) { DUMP( "%*s%04x%*s", indent, "", ptr->hwndSelf, 13-indent,""); GlobalGetAtomName16(ptr->class->atomName,className,sizeof(className)); DUMP( "%08lx %-6.4x %-17.17s %08x %08x %.14s\n", (DWORD)ptr, ptr->hmemTaskQ, className, (UINT)ptr->dwStyle, (UINT)ptr->winproc, ptr->text?ptr->text:""); if (ptr->child) WIN_WalkWindows( ptr->child->hwndSelf, indent+1 ); WIN_UpdateWndPtr(&ptr,ptr->next); } } /*********************************************************************** * WIN_UnlinkWindow * * Remove a window from the siblings linked list. */ BOOL WIN_UnlinkWindow( HWND hwnd ) { WND *wndPtr, **ppWnd; if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE; else if(!wndPtr->parent) { WIN_ReleaseWndPtr(wndPtr); return FALSE; } ppWnd = &wndPtr->parent->child; while (*ppWnd != wndPtr) ppWnd = &(*ppWnd)->next; *ppWnd = wndPtr->next; WIN_ReleaseWndPtr(wndPtr); return TRUE; } /*********************************************************************** * WIN_LinkWindow * * Insert a window into the siblings linked list. * The window is inserted after the specified window, which can also * be specified as HWND_TOP or HWND_BOTTOM. */ BOOL WIN_LinkWindow( HWND hwnd, HWND hwndInsertAfter ) { WND *wndPtr, **ppWnd; if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE; else if(!wndPtr->parent) { WIN_ReleaseWndPtr(wndPtr); return FALSE; } if ((hwndInsertAfter == HWND_TOP) || (hwndInsertAfter == HWND_BOTTOM)) { ppWnd = &wndPtr->parent->child; /* Point to first sibling hwnd */ if (hwndInsertAfter == HWND_BOTTOM) /* Find last sibling hwnd */ while (*ppWnd) ppWnd = &(*ppWnd)->next; } else /* Normal case */ { WND * afterPtr = WIN_FindWndPtr( hwndInsertAfter ); if (!afterPtr) { WIN_ReleaseWndPtr(wndPtr); return FALSE; } ppWnd = &afterPtr->next; WIN_ReleaseWndPtr(afterPtr); } wndPtr->next = *ppWnd; *ppWnd = wndPtr; WIN_ReleaseWndPtr(wndPtr); return TRUE; } /*********************************************************************** * WIN_FindWinToRepaint * * Find a window that needs repaint. */ HWND WIN_FindWinToRepaint( HWND hwnd, HQUEUE16 hQueue ) { HWND hwndRet; WND *pWnd; /* Note: the desktop window never gets WM_PAINT messages * The real reason why is because Windows DesktopWndProc * does ValidateRgn inside WM_ERASEBKGND handler. */ pWnd = hwnd ? WIN_FindWndPtr(hwnd) : WIN_LockWndPtr(pWndDesktop->child); for ( ; pWnd ; WIN_UpdateWndPtr(&pWnd,pWnd->next)) { if (!(pWnd->dwStyle & WS_VISIBLE)) { TRACE(win, "skipping window %04x\n", pWnd->hwndSelf ); } else if ((pWnd->hmemTaskQ == hQueue) && (pWnd->hrgnUpdate || (pWnd->flags & WIN_INTERNAL_PAINT))) break; else if (pWnd->child ) if ((hwndRet = WIN_FindWinToRepaint( pWnd->child->hwndSelf, hQueue )) ) { WIN_ReleaseWndPtr(pWnd); return hwndRet; } } if(!pWnd) { return 0; } hwndRet = pWnd->hwndSelf; /* look among siblings if we got a transparent window */ while (pWnd && ((pWnd->dwExStyle & WS_EX_TRANSPARENT) || !(pWnd->hrgnUpdate || (pWnd->flags & WIN_INTERNAL_PAINT)))) { WIN_UpdateWndPtr(&pWnd,pWnd->next); } if (pWnd) { hwndRet = pWnd->hwndSelf; WIN_ReleaseWndPtr(pWnd); } TRACE(win,"found %04x\n",hwndRet); return hwndRet; } /*********************************************************************** * WIN_DestroyWindow * * Destroy storage associated to a window. "Internals" p.358 * returns a locked wndPtr->next */ static WND* WIN_DestroyWindow( WND* wndPtr ) { HWND hwnd = wndPtr->hwndSelf; WND *pWnd; TRACE(win, "%04x\n", wndPtr->hwndSelf ); #ifdef CONFIG_IPC if (main_block) DDE_DestroyWindow(wndPtr->hwndSelf); #endif /* CONFIG_IPC */ /* free child windows */ WIN_LockWndPtr(wndPtr->child); while ((pWnd = wndPtr->child)) { wndPtr->child = WIN_DestroyWindow( pWnd ); WIN_ReleaseWndPtr(pWnd); } /* * Clear the update region to make sure no WM_PAINT messages will be * generated for this window while processing the WM_NCDESTROY. */ if ((wndPtr->hrgnUpdate) || (wndPtr->flags & WIN_INTERNAL_PAINT)) { if (wndPtr->hrgnUpdate > 1) DeleteObject( wndPtr->hrgnUpdate ); QUEUE_DecPaintCount( wndPtr->hmemTaskQ ); wndPtr->hrgnUpdate = 0; } /* * Send the WM_NCDESTROY to the window being destroyed. */ SendMessageA( wndPtr->hwndSelf, WM_NCDESTROY, 0, 0); /* FIXME: do we need to fake QS_MOUSEMOVE wakebit? */ WINPOS_CheckInternalPos( wndPtr ); if( hwnd == GetCapture()) ReleaseCapture(); /* free resources associated with the window */ TIMER_RemoveWindowTimers( wndPtr->hwndSelf ); PROPERTY_RemoveWindowProps( wndPtr ); wndPtr->dwMagic = 0; /* Mark it as invalid */ /* toss stale messages from the queue */ if( wndPtr->hmemTaskQ ) { BOOL bPostQuit = FALSE; WPARAM wQuitParam = 0; MESSAGEQUEUE* msgQ = (MESSAGEQUEUE*) QUEUE_Lock(wndPtr->hmemTaskQ); QMSG *qmsg; while( (qmsg = QUEUE_FindMsg(msgQ, hwnd, 0, 0)) != 0 ) { if( qmsg->msg.message == WM_QUIT ) { bPostQuit = TRUE; wQuitParam = qmsg->msg.wParam; } QUEUE_RemoveMsg(msgQ, qmsg); } QUEUE_Unlock(msgQ); /* repost WM_QUIT to make sure this app exits its message loop */ if( bPostQuit ) PostQuitMessage(wQuitParam); wndPtr->hmemTaskQ = 0; } if (!(wndPtr->dwStyle & WS_CHILD)) if (wndPtr->wIDmenu) DestroyMenu( (HMENU)wndPtr->wIDmenu ); if (wndPtr->hSysMenu) DestroyMenu( wndPtr->hSysMenu ); wndPtr->pDriver->pDestroyWindow( wndPtr ); DCE_FreeWindowDCE( wndPtr ); /* Always do this to catch orphaned DCs */ WINPROC_FreeProc( wndPtr->winproc, WIN_PROC_WINDOW ); wndPtr->hwndSelf = 0; wndPtr->class->cWindows--; wndPtr->class = NULL; WIN_UpdateWndPtr(&pWnd,wndPtr->next); wndPtr->pDriver->pFinalize(wndPtr); return pWnd; } /*********************************************************************** * WIN_ResetQueueWindows * * Reset the queue of all the children of a given window. * Return TRUE if something was done. */ BOOL WIN_ResetQueueWindows( WND* wnd, HQUEUE16 hQueue, HQUEUE16 hNew ) { BOOL ret = FALSE; if (hNew) /* Set a new queue */ { for (wnd = WIN_LockWndPtr(wnd->child); (wnd);WIN_UpdateWndPtr(&wnd,wnd->next)) { if (wnd->hmemTaskQ == hQueue) { wnd->hmemTaskQ = hNew; ret = TRUE; } if (wnd->child) { ret |= WIN_ResetQueueWindows( wnd, hQueue, hNew ); } } } else /* Queue is being destroyed */ { while (wnd->child) { WND *tmp = WIN_LockWndPtr(wnd->child); WND *tmp2; ret = FALSE; while (tmp) { if (tmp->hmemTaskQ == hQueue) { DestroyWindow( tmp->hwndSelf ); ret = TRUE; break; } tmp2 = WIN_LockWndPtr(tmp->child); if (tmp2 && WIN_ResetQueueWindows(tmp2,hQueue,0)) ret = TRUE; else { WIN_UpdateWndPtr(&tmp,tmp->next); } WIN_ReleaseWndPtr(tmp2); } WIN_ReleaseWndPtr(tmp); if (!ret) break; } } return ret; } /*********************************************************************** * WIN_CreateDesktopWindow * * Create the desktop window. */ BOOL WIN_CreateDesktopWindow(void) { CLASS *class; HWND hwndDesktop; DESKTOP *pDesktop; TRACE(win,"Creating desktop window\n"); /* Initialisation of the critical section for thread safeness */ InitializeCriticalSection(&WIN_CritSection); MakeCriticalSectionGlobal(&WIN_CritSection); if (!ICONTITLE_Init() || !WINPOS_CreateInternalPosAtom() || !(class = CLASS_FindClassByAtom( DESKTOP_CLASS_ATOM, 0 ))) return FALSE; hwndDesktop = USER_HEAP_ALLOC( sizeof(WND)+class->cbWndExtra ); if (!hwndDesktop) return FALSE; pWndDesktop = (WND *) USER_HEAP_LIN_ADDR( hwndDesktop ); pDesktop = (DESKTOP *) pWndDesktop->wExtra; pDesktop->pDriver = DESKTOP_Driver; pWndDesktop->pDriver = WND_Driver; pDesktop->pDriver->pInitialize(pDesktop); pWndDesktop->pDriver->pInitialize(pWndDesktop); pWndDesktop->next = NULL; pWndDesktop->child = NULL; pWndDesktop->parent = NULL; pWndDesktop->owner = NULL; pWndDesktop->class = class; pWndDesktop->dwMagic = WND_MAGIC; pWndDesktop->hwndSelf = hwndDesktop; pWndDesktop->hInstance = 0; pWndDesktop->rectWindow.left = 0; pWndDesktop->rectWindow.top = 0; pWndDesktop->rectWindow.right = SYSMETRICS_CXSCREEN; pWndDesktop->rectWindow.bottom = SYSMETRICS_CYSCREEN; pWndDesktop->rectClient = pWndDesktop->rectWindow; pWndDesktop->text = NULL; pWndDesktop->hmemTaskQ = GetFastQueue16(); pWndDesktop->hrgnUpdate = 0; pWndDesktop->hwndLastActive = hwndDesktop; pWndDesktop->dwStyle = WS_VISIBLE | WS_CLIPCHILDREN | WS_CLIPSIBLINGS; pWndDesktop->dwExStyle = 0; pWndDesktop->dce = NULL; pWndDesktop->pVScroll = NULL; pWndDesktop->pHScroll = NULL; pWndDesktop->pProp = NULL; pWndDesktop->wIDmenu = 0; pWndDesktop->helpContext = 0; pWndDesktop->flags = 0; pWndDesktop->hSysMenu = 0; pWndDesktop->userdata = 0; pWndDesktop->winproc = (WNDPROC16)class->winproc; pWndDesktop->irefCount = 0; /* FIXME: How do we know if it should be Unicode or not */ if(!pWndDesktop->pDriver->pCreateDesktopWindow(pWndDesktop, class, FALSE)) return FALSE; SendMessageA( hwndDesktop, WM_NCCREATE, 0, 0 ); pWndDesktop->flags |= WIN_NEEDS_ERASEBKGND; return TRUE; } /*********************************************************************** * WIN_CreateWindowEx * * Implementation of CreateWindowEx(). */ static HWND WIN_CreateWindowEx( CREATESTRUCTA *cs, ATOM classAtom, BOOL win32, BOOL unicode ) { CLASS *classPtr; WND *wndPtr; HWND retvalue; HWND16 hwnd, hwndLinkAfter; POINT maxSize, maxPos, minTrack, maxTrack; LRESULT (CALLBACK *localSend32)(HWND, UINT, WPARAM, LPARAM); char buffer[256]; TRACE(win, "%s %s %08lx %08lx %d,%d %dx%d %04x %04x %08x %p\n", unicode ? debugres_w((LPWSTR)cs->lpszName) : debugres_a(cs->lpszName), unicode ? debugres_w((LPWSTR)cs->lpszClass) : debugres_a(cs->lpszClass), cs->dwExStyle, cs->style, cs->x, cs->y, cs->cx, cs->cy, cs->hwndParent, cs->hMenu, cs->hInstance, cs->lpCreateParams ); /* Find the parent window */ if (cs->hwndParent) { /* Make sure parent is valid */ if (!IsWindow( cs->hwndParent )) { WARN( win, "Bad parent %04x\n", cs->hwndParent ); return 0; } } else if ((cs->style & WS_CHILD) && !(cs->style & WS_POPUP)) { WARN( win, "No parent for child window\n" ); return 0; /* WS_CHILD needs a parent, but WS_POPUP doesn't */ } /* Find the window class */ if (!(classPtr = CLASS_FindClassByAtom( classAtom, win32?cs->hInstance:GetExePtr(cs->hInstance) ))) { GlobalGetAtomNameA( classAtom, buffer, sizeof(buffer) ); WARN( win, "Bad class '%s'\n", buffer ); return 0; } /* Fix the lpszClass field: from existing programs, it seems ok to call a CreateWindowXXX * with an atom as the class name, put some programs expect to have a *REAL* string in * lpszClass when the CREATESTRUCT is sent with WM_CREATE */ if ( !HIWORD(cs->lpszClass) ) { if (unicode) { GlobalGetAtomNameW( classAtom, (LPWSTR)buffer, sizeof(buffer) ); } else { GlobalGetAtomNameA( classAtom, buffer, sizeof(buffer) ); } cs->lpszClass = buffer; } /* Fix the coordinates */ if (cs->x == CW_USEDEFAULT) { PDB *pdb = PROCESS_Current(); if ( !(cs->style & (WS_CHILD | WS_POPUP)) && (pdb->env_db->startup_info->dwFlags & STARTF_USEPOSITION) ) { cs->x = pdb->env_db->startup_info->dwX; cs->y = pdb->env_db->startup_info->dwY; } else { cs->x = 0; cs->y = 0; } } if (cs->cx == CW_USEDEFAULT) { PDB *pdb = PROCESS_Current(); if ( !(cs->style & (WS_CHILD | WS_POPUP)) && (pdb->env_db->startup_info->dwFlags & STARTF_USESIZE) ) { cs->cx = pdb->env_db->startup_info->dwXSize; cs->cy = pdb->env_db->startup_info->dwYSize; } else { cs->cx = 600; /* FIXME */ cs->cy = 400; } } /* Create the window structure */ if (!(hwnd = USER_HEAP_ALLOC( sizeof(*wndPtr) + classPtr->cbWndExtra - sizeof(wndPtr->wExtra) ))) { TRACE(win, "out of memory\n" ); return 0; } /* Fill the window structure */ wndPtr = WIN_LockWndPtr((WND *) USER_HEAP_LIN_ADDR( hwnd )); wndPtr->next = NULL; wndPtr->child = NULL; if ((cs->style & WS_CHILD) && cs->hwndParent) { wndPtr->parent = WIN_FindWndPtr( cs->hwndParent ); wndPtr->owner = NULL; WIN_ReleaseWndPtr(wndPtr->parent); } else { wndPtr->parent = pWndDesktop; if (!cs->hwndParent || (cs->hwndParent == pWndDesktop->hwndSelf)) wndPtr->owner = NULL; else { WND *tmpWnd = WIN_FindWndPtr(cs->hwndParent); wndPtr->owner = WIN_GetTopParentPtr(tmpWnd); WIN_ReleaseWndPtr(wndPtr->owner); WIN_ReleaseWndPtr(tmpWnd); } } wndPtr->pDriver = wndPtr->parent->pDriver; wndPtr->pDriver->pInitialize(wndPtr); wndPtr->class = classPtr; wndPtr->winproc = classPtr->winproc; wndPtr->dwMagic = WND_MAGIC; wndPtr->hwndSelf = hwnd; wndPtr->hInstance = cs->hInstance; wndPtr->text = NULL; wndPtr->hmemTaskQ = GetFastQueue16(); wndPtr->hrgnUpdate = 0; wndPtr->hwndLastActive = hwnd; wndPtr->dwStyle = cs->style & ~WS_VISIBLE; wndPtr->dwExStyle = cs->dwExStyle; wndPtr->wIDmenu = 0; wndPtr->helpContext = 0; wndPtr->flags = win32 ? WIN_ISWIN32 : 0; wndPtr->pVScroll = NULL; wndPtr->pHScroll = NULL; wndPtr->pProp = NULL; wndPtr->userdata = 0; wndPtr->hSysMenu = (wndPtr->dwStyle & WS_SYSMENU) ? MENU_GetSysMenu( hwnd, 0 ) : 0; wndPtr->irefCount = 1; if (classPtr->cbWndExtra) memset( wndPtr->wExtra, 0, classPtr->cbWndExtra); /* Call the WH_CBT hook */ hwndLinkAfter = ((cs->style & (WS_CHILD|WS_MAXIMIZE)) == WS_CHILD) ? HWND_BOTTOM : HWND_TOP; if (HOOK_IsHooked( WH_CBT )) { CBT_CREATEWNDA cbtc; LRESULT ret; cbtc.lpcs = cs; cbtc.hwndInsertAfter = hwndLinkAfter; ret = unicode ? HOOK_CallHooksW(WH_CBT, HCBT_CREATEWND, hwnd, (LPARAM)&cbtc) : HOOK_CallHooksA(WH_CBT, HCBT_CREATEWND, hwnd, (LPARAM)&cbtc); if (ret) { TRACE(win, "CBT-hook returned 0\n"); wndPtr->pDriver->pFinalize(wndPtr); USER_HEAP_FREE( hwnd ); retvalue = 0; goto end; } } /* Increment class window counter */ classPtr->cWindows++; /* Correct the window style */ if (!(cs->style & WS_CHILD)) { wndPtr->dwStyle |= WS_CLIPSIBLINGS; if (!(cs->style & WS_POPUP)) { wndPtr->dwStyle |= WS_CAPTION; wndPtr->flags |= WIN_NEED_SIZE; } } if (cs->dwExStyle & WS_EX_DLGMODALFRAME) wndPtr->dwStyle &= ~WS_THICKFRAME; /* Get class or window DC if needed */ if (classPtr->style & CS_OWNDC) wndPtr->dce = DCE_AllocDCE(hwnd,DCE_WINDOW_DC); else if (classPtr->style & CS_CLASSDC) wndPtr->dce = classPtr->dce; else wndPtr->dce = NULL; /* Send the WM_GETMINMAXINFO message and fix the size if needed */ if ((cs->style & WS_THICKFRAME) || !(cs->style & (WS_POPUP | WS_CHILD))) { WINPOS_GetMinMaxInfo( wndPtr, &maxSize, &maxPos, &minTrack, &maxTrack); if (maxSize.x < cs->cx) cs->cx = maxSize.x; if (maxSize.y < cs->cy) cs->cy = maxSize.y; if (cs->cx < minTrack.x ) cs->cx = minTrack.x; if (cs->cy < minTrack.y ) cs->cy = minTrack.y; } if(cs->style & WS_CHILD) { if(cs->cx < 0) cs->cx = 0; if(cs->cy < 0) cs->cy = 0; } else { if (cs->cx <= 0) cs->cx = 1; if (cs->cy <= 0) cs->cy = 1; } wndPtr->rectWindow.left = cs->x; wndPtr->rectWindow.top = cs->y; wndPtr->rectWindow.right = cs->x + cs->cx; wndPtr->rectWindow.bottom = cs->y + cs->cy; wndPtr->rectClient = wndPtr->rectWindow; if(!wndPtr->pDriver->pCreateWindow(wndPtr, classPtr, cs, unicode)) { retvalue = FALSE; goto end; } /* Set the window menu */ if ((wndPtr->dwStyle & (WS_CAPTION | WS_CHILD)) == WS_CAPTION ) { if (cs->hMenu) SetMenu(hwnd, cs->hMenu); else { #if 0 /* FIXME: should check if classPtr->menuNameW can be used as is */ if (classPtr->menuNameA) cs->hMenu = HIWORD(classPtr->menuNameA) ? LoadMenu(cs->hInstance,SEGPTR_GET(classPtr->menuNameA)): LoadMenu(cs->hInstance,(SEGPTR)classPtr->menuNameA); #else SEGPTR menuName = (SEGPTR)GetClassLong16( hwnd, GCL_MENUNAME ); if (menuName) { if (HIWORD(cs->hInstance)) cs->hMenu = LoadMenuA(cs->hInstance,PTR_SEG_TO_LIN(menuName)); else cs->hMenu = LoadMenu16(cs->hInstance,menuName); if (cs->hMenu) SetMenu( hwnd, cs->hMenu ); } #endif } } else wndPtr->wIDmenu = (UINT)cs->hMenu; /* Send the WM_CREATE message * Perhaps we shouldn't allow width/height changes as well. * See p327 in "Internals". */ maxPos.x = wndPtr->rectWindow.left; maxPos.y = wndPtr->rectWindow.top; localSend32 = unicode ? SendMessageW : SendMessageA; if( (*localSend32)( hwnd, WM_NCCREATE, 0, (LPARAM)cs) ) { /* Insert the window in the linked list */ WIN_LinkWindow( hwnd, hwndLinkAfter ); WINPOS_SendNCCalcSize( hwnd, FALSE, &wndPtr->rectWindow, NULL, NULL, 0, &wndPtr->rectClient ); OffsetRect(&wndPtr->rectWindow, maxPos.x - wndPtr->rectWindow.left, maxPos.y - wndPtr->rectWindow.top); if( ((*localSend32)( hwnd, WM_CREATE, 0, (LPARAM)cs )) != -1 ) { /* Send the size messages */ if (!(wndPtr->flags & WIN_NEED_SIZE)) { /* send it anyway */ if (((wndPtr->rectClient.right-wndPtr->rectClient.left) <0) ||((wndPtr->rectClient.bottom-wndPtr->rectClient.top)<0)) WARN(win,"sending bogus WM_SIZE message 0x%08lx\n", MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left, wndPtr->rectClient.bottom-wndPtr->rectClient.top)); SendMessageA( hwnd, WM_SIZE, SIZE_RESTORED, MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left, wndPtr->rectClient.bottom-wndPtr->rectClient.top)); SendMessageA( hwnd, WM_MOVE, 0, MAKELONG( wndPtr->rectClient.left, wndPtr->rectClient.top ) ); } /* Show the window, maximizing or minimizing if needed */ if (wndPtr->dwStyle & (WS_MINIMIZE | WS_MAXIMIZE)) { RECT16 newPos; UINT16 swFlag = (wndPtr->dwStyle & WS_MINIMIZE) ? SW_MINIMIZE : SW_MAXIMIZE; wndPtr->dwStyle &= ~(WS_MAXIMIZE | WS_MINIMIZE); WINPOS_MinMaximize( wndPtr, swFlag, &newPos ); swFlag = ((wndPtr->dwStyle & WS_CHILD) || GetActiveWindow()) ? SWP_NOACTIVATE | SWP_NOZORDER | SWP_FRAMECHANGED : SWP_NOZORDER | SWP_FRAMECHANGED; SetWindowPos( hwnd, 0, newPos.left, newPos.top, newPos.right, newPos.bottom, swFlag ); } if( wndPtr->dwStyle & WS_CHILD && !(wndPtr->dwExStyle & WS_EX_NOPARENTNOTIFY) ) { /* Notify the parent window only */ SendMessageA( wndPtr->parent->hwndSelf, WM_PARENTNOTIFY, MAKEWPARAM(WM_CREATE, wndPtr->wIDmenu), (LPARAM)hwnd ); if( !IsWindow(hwnd) ) { retvalue = 0; goto end; } } if (cs->style & WS_VISIBLE) ShowWindow( hwnd, SW_SHOW ); /* Call WH_SHELL hook */ if (!(wndPtr->dwStyle & WS_CHILD) && !wndPtr->owner) HOOK_CallHooks16( WH_SHELL, HSHELL_WINDOWCREATED, hwnd, 0 ); TRACE(win, "created window %04x\n", hwnd); retvalue = hwnd; goto end; } WIN_UnlinkWindow( hwnd ); } /* Abort window creation */ WARN(win, "aborted by WM_xxCREATE!\n"); WIN_ReleaseWndPtr(WIN_DestroyWindow( wndPtr )); retvalue = 0; end: WIN_ReleaseWndPtr(wndPtr); return retvalue; } /*********************************************************************** * CreateWindow16 (USER.41) */ HWND16 WINAPI CreateWindow16( LPCSTR className, LPCSTR windowName, DWORD style, INT16 x, INT16 y, INT16 width, INT16 height, HWND16 parent, HMENU16 menu, HINSTANCE16 instance, LPVOID data ) { return CreateWindowEx16( 0, className, windowName, style, x, y, width, height, parent, menu, instance, data ); } /*********************************************************************** * CreateWindowEx16 (USER.452) */ HWND16 WINAPI CreateWindowEx16( DWORD exStyle, LPCSTR className, LPCSTR windowName, DWORD style, INT16 x, INT16 y, INT16 width, INT16 height, HWND16 parent, HMENU16 menu, HINSTANCE16 instance, LPVOID data ) { ATOM classAtom; CREATESTRUCTA cs; /* Find the class atom */ if (!(classAtom = GlobalFindAtomA( className ))) { fprintf( stderr, "CreateWindowEx16: bad class name " ); if (!HIWORD(className)) fprintf( stderr, "%04x\n", LOWORD(className) ); else fprintf( stderr, "'%s'\n", className ); return 0; } /* Fix the coordinates */ cs.x = (x == CW_USEDEFAULT16) ? CW_USEDEFAULT : (INT)x; cs.y = (y == CW_USEDEFAULT16) ? CW_USEDEFAULT : (INT)y; cs.cx = (width == CW_USEDEFAULT16) ? CW_USEDEFAULT : (INT)width; cs.cy = (height == CW_USEDEFAULT16) ? CW_USEDEFAULT : (INT)height; /* Create the window */ cs.lpCreateParams = data; cs.hInstance = (HINSTANCE)instance; cs.hMenu = (HMENU)menu; cs.hwndParent = (HWND)parent; cs.style = style; cs.lpszName = windowName; cs.lpszClass = className; cs.dwExStyle = exStyle; return WIN_CreateWindowEx( &cs, classAtom, FALSE, FALSE ); } /*********************************************************************** * CreateWindowEx32A (USER32.83) */ HWND WINAPI CreateWindowExA( DWORD exStyle, LPCSTR className, LPCSTR windowName, DWORD style, INT x, INT y, INT width, INT height, HWND parent, HMENU menu, HINSTANCE instance, LPVOID data ) { ATOM classAtom; CREATESTRUCTA cs; if(exStyle & WS_EX_MDICHILD) return MDI_CreateMDIWindowA(className, windowName, style, x, y, width, height, parent, instance, (LPARAM)data); /* Find the class atom */ if (!(classAtom = GlobalFindAtomA( className ))) { fprintf( stderr, "CreateWindowEx32A: bad class name " ); if (!HIWORD(className)) fprintf( stderr, "%04x\n", LOWORD(className) ); else fprintf( stderr, "'%s'\n", className ); return 0; } /* Create the window */ cs.lpCreateParams = data; cs.hInstance = instance; cs.hMenu = menu; cs.hwndParent = parent; cs.x = x; cs.y = y; cs.cx = width; cs.cy = height; cs.style = style; cs.lpszName = windowName; cs.lpszClass = className; cs.dwExStyle = exStyle; return WIN_CreateWindowEx( &cs, classAtom, TRUE, FALSE ); } /*********************************************************************** * CreateWindowEx32W (USER32.84) */ HWND WINAPI CreateWindowExW( DWORD exStyle, LPCWSTR className, LPCWSTR windowName, DWORD style, INT x, INT y, INT width, INT height, HWND parent, HMENU menu, HINSTANCE instance, LPVOID data ) { ATOM classAtom; CREATESTRUCTW cs; if(exStyle & WS_EX_MDICHILD) return MDI_CreateMDIWindowW(className, windowName, style, x, y, width, height, parent, instance, (LPARAM)data); /* Find the class atom */ if (!(classAtom = GlobalFindAtomW( className ))) { if (HIWORD(className)) { LPSTR cn = HEAP_strdupWtoA( GetProcessHeap(), 0, className ); WARN( win, "Bad class name '%s'\n",cn); HeapFree( GetProcessHeap(), 0, cn ); } else WARN( win, "Bad class name %p\n", className ); return 0; } /* Create the window */ cs.lpCreateParams = data; cs.hInstance = instance; cs.hMenu = menu; cs.hwndParent = parent; cs.x = x; cs.y = y; cs.cx = width; cs.cy = height; cs.style = style; cs.lpszName = windowName; cs.lpszClass = className; cs.dwExStyle = exStyle; /* Note: we rely on the fact that CREATESTRUCT32A and */ /* CREATESTRUCT32W have the same layout. */ return WIN_CreateWindowEx( (CREATESTRUCTA *)&cs, classAtom, TRUE, TRUE ); } /*********************************************************************** * WIN_CheckFocus */ static void WIN_CheckFocus( WND* pWnd ) { if( GetFocus16() == pWnd->hwndSelf ) SetFocus16( (pWnd->dwStyle & WS_CHILD) ? pWnd->parent->hwndSelf : 0 ); } /*********************************************************************** * WIN_SendDestroyMsg */ static void WIN_SendDestroyMsg( WND* pWnd ) { WIN_CheckFocus(pWnd); if( CARET_GetHwnd() == pWnd->hwndSelf ) DestroyCaret(); CLIPBOARD_Driver->pResetOwner( pWnd, TRUE ); /* * Send the WM_DESTROY to the window. */ SendMessageA( pWnd->hwndSelf, WM_DESTROY, 0, 0); /* * This WM_DESTROY message can trigger re-entrant calls to DestroyWindow * make sure that the window still exists when we come back. */ if (IsWindow(pWnd->hwndSelf)) { HWND* pWndArray = NULL; WND* pChild = NULL; int nKidCount = 0; /* * Now, if the window has kids, we have to send WM_DESTROY messages * recursively to it's kids. It seems that those calls can also * trigger re-entrant calls to DestroyWindow for the kids so we must * protect against corruption of the list of siblings. We first build * a list of HWNDs representing all the kids. */ pChild = WIN_LockWndPtr(pWnd->child); while( pChild ) { nKidCount++; WIN_UpdateWndPtr(&pChild,pChild->next); } /* * If there are no kids, we're done. */ if (nKidCount==0) return; pWndArray = HeapAlloc(GetProcessHeap(), 0, nKidCount*sizeof(HWND)); /* * Sanity check */ if (pWndArray==NULL) return; /* * Now, enumerate all the kids in a list, since we wait to make the SendMessage * call, our linked list of siblings should be safe. */ nKidCount = 0; pChild = WIN_LockWndPtr(pWnd->child); while( pChild ) { pWndArray[nKidCount] = pChild->hwndSelf; nKidCount++; WIN_UpdateWndPtr(&pChild,pChild->next); } /* * Now that we have a list, go through that list again and send the destroy * message to those windows. We are using the HWND to retrieve the * WND pointer so we are effectively checking that all the kid windows are * still valid before sending the message. */ while (nKidCount>0) { pChild = WIN_FindWndPtr(pWndArray[--nKidCount]); if (pChild!=NULL) { WIN_SendDestroyMsg( pChild ); WIN_ReleaseWndPtr(pChild); } } /* * Cleanup */ HeapFree(GetProcessHeap(), 0, pWndArray); WIN_CheckFocus(pWnd); } else WARN(win, "\tdestroyed itself while in WM_DESTROY!\n"); } /*********************************************************************** * DestroyWindow16 (USER.53) */ BOOL16 WINAPI DestroyWindow16( HWND16 hwnd ) { return DestroyWindow(hwnd); } /*********************************************************************** * DestroyWindow32 (USER32.135) */ BOOL WINAPI DestroyWindow( HWND hwnd ) { WND * wndPtr; BOOL retvalue; TRACE(win, "(%04x)\n", hwnd); /* Initialization */ if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE; if (wndPtr == pWndDesktop) { WIN_ReleaseWndPtr(wndPtr); return FALSE; /* Can't destroy desktop */ } /* Call hooks */ if( HOOK_CallHooks16( WH_CBT, HCBT_DESTROYWND, hwnd, 0L) ) { retvalue = FALSE; goto end; } if (!(wndPtr->dwStyle & WS_CHILD) && !wndPtr->owner) { HOOK_CallHooks16( WH_SHELL, HSHELL_WINDOWDESTROYED, hwnd, 0L ); /* FIXME: clean up palette - see "Internals" p.352 */ } if( !QUEUE_IsExitingQueue(wndPtr->hmemTaskQ) ) if( wndPtr->dwStyle & WS_CHILD && !(wndPtr->dwExStyle & WS_EX_NOPARENTNOTIFY) ) { /* Notify the parent window only */ SendMessageA( wndPtr->parent->hwndSelf, WM_PARENTNOTIFY, MAKEWPARAM(WM_DESTROY, wndPtr->wIDmenu), (LPARAM)hwnd ); if( !IsWindow(hwnd) ) { retvalue = TRUE; goto end; } } CLIPBOARD_Driver->pResetOwner( wndPtr, FALSE ); /* before the window is unmapped */ /* Hide the window */ if (wndPtr->dwStyle & WS_VISIBLE) { SetWindowPos( hwnd, 0, 0, 0, 0, 0, SWP_HIDEWINDOW | SWP_NOACTIVATE|SWP_NOZORDER|SWP_NOMOVE|SWP_NOSIZE| ((QUEUE_IsExitingQueue(wndPtr->hmemTaskQ))?SWP_DEFERERASE:0) ); if (!IsWindow(hwnd)) { retvalue = TRUE; goto end; } } /* Recursively destroy owned windows */ if( !(wndPtr->dwStyle & WS_CHILD) ) { /* make sure top menu popup doesn't get destroyed */ MENU_PatchResidentPopup( (HQUEUE16)0xFFFF, wndPtr ); for (;;) { WND *siblingPtr = WIN_LockWndPtr(wndPtr->parent->child); /* First sibling */ while (siblingPtr) { if (siblingPtr->owner == wndPtr) { if (siblingPtr->hmemTaskQ == wndPtr->hmemTaskQ) break; else siblingPtr->owner = NULL; } WIN_UpdateWndPtr(&siblingPtr,siblingPtr->next); } if (siblingPtr) { DestroyWindow( siblingPtr->hwndSelf ); WIN_ReleaseWndPtr(siblingPtr); } else break; } if( !Options.managed || EVENT_CheckFocus() ) WINPOS_ActivateOtherWindow(wndPtr); if( wndPtr->owner && wndPtr->owner->hwndLastActive == wndPtr->hwndSelf ) wndPtr->owner->hwndLastActive = wndPtr->owner->hwndSelf; } /* Send destroy messages */ WIN_SendDestroyMsg( wndPtr ); if (!IsWindow(hwnd)) { retvalue = TRUE; goto end; } /* Unlink now so we won't bother with the children later on */ if( wndPtr->parent ) WIN_UnlinkWindow(hwnd); /* Destroy the window storage */ WIN_ReleaseWndPtr(WIN_DestroyWindow( wndPtr )); retvalue = TRUE; end: WIN_ReleaseWndPtr(wndPtr); return retvalue; } /*********************************************************************** * CloseWindow16 (USER.43) */ BOOL16 WINAPI CloseWindow16( HWND16 hwnd ) { return CloseWindow( hwnd ); } /*********************************************************************** * CloseWindow32 (USER32.56) */ BOOL WINAPI CloseWindow( HWND hwnd ) { WND * wndPtr = WIN_FindWndPtr( hwnd ); BOOL retvalue; if (!wndPtr || (wndPtr->dwStyle & WS_CHILD)) { retvalue = FALSE; goto end; } ShowWindow( hwnd, SW_MINIMIZE ); retvalue = TRUE; end: WIN_ReleaseWndPtr(wndPtr); return retvalue; } /*********************************************************************** * OpenIcon16 (USER.44) */ BOOL16 WINAPI OpenIcon16( HWND16 hwnd ) { return OpenIcon( hwnd ); } /*********************************************************************** * OpenIcon32 (USER32.410) */ BOOL WINAPI OpenIcon( HWND hwnd ) { if (!IsIconic( hwnd )) return FALSE; ShowWindow( hwnd, SW_SHOWNORMAL ); return TRUE; } /*********************************************************************** * WIN_FindWindow * * Implementation of FindWindow() and FindWindowEx(). */ static HWND WIN_FindWindow( HWND parent, HWND child, ATOM className, LPCSTR title ) { WND *pWnd; HWND retvalue; CLASS *pClass = NULL; if (child) { if (!(pWnd = WIN_FindWndPtr( child ))) return 0; if (parent) { if (!pWnd->parent || (pWnd->parent->hwndSelf != parent)) { retvalue = 0; goto end; } } else if (pWnd->parent != pWndDesktop) { retvalue = 0; goto end; } WIN_UpdateWndPtr(&pWnd,pWnd->next); } else { if (!(pWnd = parent ? WIN_FindWndPtr(parent) : WIN_LockWndPtr(pWndDesktop))) { retvalue = 0; goto end; } WIN_UpdateWndPtr(&pWnd,pWnd->child); } if (!pWnd) { retvalue = 0; goto end; } /* For a child window, all siblings will have the same hInstance, */ /* so we can look for the class once and for all. */ if (className && (pWnd->dwStyle & WS_CHILD)) { if (!(pClass = CLASS_FindClassByAtom( className, pWnd->hInstance ))) { retvalue = 0; goto end; } } for ( ; pWnd ; WIN_UpdateWndPtr(&pWnd,pWnd->next)) { if (className && !(pWnd->dwStyle & WS_CHILD)) { if (!(pClass = CLASS_FindClassByAtom( className, pWnd->hInstance))) continue; /* Skip this window */ } if (pClass && (pWnd->class != pClass)) continue; /* Not the right class */ /* Now check the title */ if (!title) { retvalue = pWnd->hwndSelf; goto end; } if (pWnd->text && !strcmp( pWnd->text, title )) { retvalue = pWnd->hwndSelf; goto end; } } retvalue = 0; end: WIN_ReleaseWndPtr(pWnd); return retvalue; } /*********************************************************************** * FindWindow16 (USER.50) */ HWND16 WINAPI FindWindow16( SEGPTR className, LPCSTR title ) { return FindWindowEx16( 0, 0, className, title ); } /*********************************************************************** * FindWindowEx16 (USER.427) */ HWND16 WINAPI FindWindowEx16( HWND16 parent, HWND16 child, SEGPTR className, LPCSTR title ) { ATOM atom = 0; TRACE(win, "%04x %04x '%s' '%s'\n", parent, child, HIWORD(className)?(char *)PTR_SEG_TO_LIN(className):"", title ? title : ""); if (className) { /* If the atom doesn't exist, then no class */ /* with this name exists either. */ if (!(atom = GlobalFindAtom16( className ))) return 0; } return WIN_FindWindow( parent, child, atom, title ); } /*********************************************************************** * FindWindow32A (USER32.198) */ HWND WINAPI FindWindowA( LPCSTR className, LPCSTR title ) { HWND ret = FindWindowExA( 0, 0, className, title ); if (!ret) SetLastError (ERROR_CANNOT_FIND_WND_CLASS); return ret; } /*********************************************************************** * FindWindowEx32A (USER32.199) */ HWND WINAPI FindWindowExA( HWND parent, HWND child, LPCSTR className, LPCSTR title ) { ATOM atom = 0; if (className) { /* If the atom doesn't exist, then no class */ /* with this name exists either. */ if (!(atom = GlobalFindAtomA( className ))) { SetLastError (ERROR_CANNOT_FIND_WND_CLASS); return 0; } } return WIN_FindWindow( parent, child, atom, title ); } /*********************************************************************** * FindWindowEx32W (USER32.200) */ HWND WINAPI FindWindowExW( HWND parent, HWND child, LPCWSTR className, LPCWSTR title ) { ATOM atom = 0; char *buffer; HWND hwnd; if (className) { /* If the atom doesn't exist, then no class */ /* with this name exists either. */ if (!(atom = GlobalFindAtomW( className ))) { SetLastError (ERROR_CANNOT_FIND_WND_CLASS); return 0; } } buffer = HEAP_strdupWtoA( GetProcessHeap(), 0, title ); hwnd = WIN_FindWindow( parent, child, atom, buffer ); HeapFree( GetProcessHeap(), 0, buffer ); return hwnd; } /*********************************************************************** * FindWindow32W (USER32.201) */ HWND WINAPI FindWindowW( LPCWSTR className, LPCWSTR title ) { return FindWindowExW( 0, 0, className, title ); } /********************************************************************** * WIN_GetDesktop * returns a locked pointer */ WND *WIN_GetDesktop(void) { return WIN_LockWndPtr(pWndDesktop); } /********************************************************************** * WIN_ReleaseDesktop * unlock the desktop pointer */ void WIN_ReleaseDesktop(void) { WIN_ReleaseWndPtr(pWndDesktop); } /********************************************************************** * GetDesktopWindow16 (USER.286) */ HWND16 WINAPI GetDesktopWindow16(void) { return (HWND16)pWndDesktop->hwndSelf; } /********************************************************************** * GetDesktopWindow32 (USER32.232) */ HWND WINAPI GetDesktopWindow(void) { return pWndDesktop->hwndSelf; } /********************************************************************** * GetDesktopHwnd (USER.278) * * Exactly the same thing as GetDesktopWindow(), but not documented. * Don't ask me why... */ HWND16 WINAPI GetDesktopHwnd16(void) { return (HWND16)pWndDesktop->hwndSelf; } /******************************************************************* * EnableWindow16 (USER.34) */ BOOL16 WINAPI EnableWindow16( HWND16 hwnd, BOOL16 enable ) { return EnableWindow( hwnd, enable ); } /******************************************************************* * EnableWindow32 (USER32.172) */ BOOL WINAPI EnableWindow( HWND hwnd, BOOL enable ) { WND *wndPtr; BOOL retvalue; TRACE(win,"EnableWindow32: ( %x, %d )\n", hwnd, enable); if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE; if (enable && (wndPtr->dwStyle & WS_DISABLED)) { /* Enable window */ wndPtr->dwStyle &= ~WS_DISABLED; if( wndPtr->flags & WIN_NATIVE ) wndPtr->pDriver->pSetHostAttr( wndPtr, HAK_ACCEPTFOCUS, TRUE ); SendMessageA( hwnd, WM_ENABLE, TRUE, 0 ); retvalue = TRUE; goto end; } else if (!enable && !(wndPtr->dwStyle & WS_DISABLED)) { SendMessageA( wndPtr->hwndSelf, WM_CANCELMODE, 0, 0); /* Disable window */ wndPtr->dwStyle |= WS_DISABLED; if( wndPtr->flags & WIN_NATIVE ) wndPtr->pDriver->pSetHostAttr( wndPtr, HAK_ACCEPTFOCUS, FALSE ); if ((hwnd == GetFocus()) || IsChild( hwnd, GetFocus() )) { SetFocus( 0 ); /* A disabled window can't have the focus */ } if ((hwnd == GetCapture()) || IsChild( hwnd, GetCapture() )) { ReleaseCapture(); /* A disabled window can't capture the mouse */ } SendMessageA( hwnd, WM_ENABLE, FALSE, 0 ); retvalue = FALSE; goto end; } retvalue = ((wndPtr->dwStyle & WS_DISABLED) != 0); end: WIN_ReleaseWndPtr(wndPtr); return retvalue; } /*********************************************************************** * IsWindowEnabled16 (USER.35) */ BOOL16 WINAPI IsWindowEnabled16(HWND16 hWnd) { return IsWindowEnabled(hWnd); } /*********************************************************************** * IsWindowEnabled32 (USER32.349) */ BOOL WINAPI IsWindowEnabled(HWND hWnd) { WND * wndPtr; BOOL retvalue; if (!(wndPtr = WIN_FindWndPtr(hWnd))) return FALSE; retvalue = !(wndPtr->dwStyle & WS_DISABLED); WIN_ReleaseWndPtr(wndPtr); return retvalue; } /*********************************************************************** * IsWindowUnicode (USER32.350) */ BOOL WINAPI IsWindowUnicode( HWND hwnd ) { WND * wndPtr; BOOL retvalue; if (!(wndPtr = WIN_FindWndPtr(hwnd))) return FALSE; retvalue = (WINPROC_GetProcType( wndPtr->winproc ) == WIN_PROC_32W); WIN_ReleaseWndPtr(wndPtr); return retvalue; } /********************************************************************** * GetWindowWord16 (USER.133) */ WORD WINAPI GetWindowWord16( HWND16 hwnd, INT16 offset ) { return GetWindowWord( hwnd, offset ); } /********************************************************************** * GetWindowWord32 (USER32.314) */ WORD WINAPI GetWindowWord( HWND hwnd, INT offset ) { WORD retvalue; WND * wndPtr = WIN_FindWndPtr( hwnd ); if (!wndPtr) return 0; if (offset >= 0) { if (offset + sizeof(WORD) > wndPtr->class->cbWndExtra) { WARN( win, "Invalid offset %d\n", offset ); retvalue = 0; goto end; } retvalue = *(WORD *)(((char *)wndPtr->wExtra) + offset); goto end; } switch(offset) { case GWW_ID: if (HIWORD(wndPtr->wIDmenu)) WARN( win,"GWW_ID: discards high bits of 0x%08x!\n", wndPtr->wIDmenu); retvalue = (WORD)wndPtr->wIDmenu; goto end; case GWW_HWNDPARENT: retvalue = GetParent(hwnd); goto end; case GWW_HINSTANCE: if (HIWORD(wndPtr->hInstance)) WARN(win,"GWW_HINSTANCE: discards high bits of 0x%08x!\n", wndPtr->hInstance); retvalue = (WORD)wndPtr->hInstance; goto end; default: WARN( win, "Invalid offset %d\n", offset ); retvalue = 0; goto end; } end: WIN_ReleaseWndPtr(wndPtr); return retvalue; } /********************************************************************** * WIN_GetWindowInstance */ HINSTANCE WIN_GetWindowInstance( HWND hwnd ) { WND * wndPtr = WIN_FindWndPtr( hwnd ); if (!wndPtr) return (HINSTANCE)0; WIN_ReleaseWndPtr(wndPtr); return wndPtr->hInstance; } /********************************************************************** * SetWindowWord16 (USER.134) */ WORD WINAPI SetWindowWord16( HWND16 hwnd, INT16 offset, WORD newval ) { return SetWindowWord( hwnd, offset, newval ); } /********************************************************************** * SetWindowWord32 (USER32.524) */ WORD WINAPI SetWindowWord( HWND hwnd, INT offset, WORD newval ) { WORD *ptr, retval; WND * wndPtr = WIN_FindWndPtr( hwnd ); if (!wndPtr) return 0; if (offset >= 0) { if (offset + sizeof(WORD) > wndPtr->class->cbWndExtra) { WARN( win, "Invalid offset %d\n", offset ); retval = 0; goto end; } ptr = (WORD *)(((char *)wndPtr->wExtra) + offset); } else switch(offset) { case GWW_ID: ptr = (WORD *)&wndPtr->wIDmenu; break; case GWW_HINSTANCE: ptr = (WORD *)&wndPtr->hInstance; break; case GWW_HWNDPARENT: retval = SetParent( hwnd, newval ); goto end; default: WARN( win, "Invalid offset %d\n", offset ); retval = 0; goto end; } retval = *ptr; *ptr = newval; end: WIN_ReleaseWndPtr(wndPtr); return retval; } /********************************************************************** * WIN_GetWindowLong * * Helper function for GetWindowLong(). */ static LONG WIN_GetWindowLong( HWND hwnd, INT offset, WINDOWPROCTYPE type ) { LONG retvalue; WND * wndPtr = WIN_FindWndPtr( hwnd ); if (!wndPtr) return 0; if (offset >= 0) { if (offset + sizeof(LONG) > wndPtr->class->cbWndExtra) { WARN( win, "Invalid offset %d\n", offset ); retvalue = 0; goto end; } retvalue = *(LONG *)(((char *)wndPtr->wExtra) + offset); /* Special case for dialog window procedure */ if ((offset == DWL_DLGPROC) && (wndPtr->flags & WIN_ISDIALOG)) { retvalue = (LONG)WINPROC_GetProc( (HWINDOWPROC)retvalue, type ); goto end; } goto end; } switch(offset) { case GWL_USERDATA: retvalue = wndPtr->userdata; goto end; case GWL_STYLE: retvalue = wndPtr->dwStyle; goto end; case GWL_EXSTYLE: retvalue = wndPtr->dwExStyle; goto end; case GWL_ID: retvalue = (LONG)wndPtr->wIDmenu; goto end; case GWL_WNDPROC: retvalue = (LONG)WINPROC_GetProc( wndPtr->winproc, type ); goto end; case GWL_HWNDPARENT: retvalue = GetParent(hwnd); goto end; case GWL_HINSTANCE: retvalue = wndPtr->hInstance; goto end; default: WARN( win, "Unknown offset %d\n", offset ); } retvalue = 0; end: WIN_ReleaseWndPtr(wndPtr); return retvalue; } /********************************************************************** * WIN_SetWindowLong * * Helper function for SetWindowLong(). * * 0 is the failure code. However, in the case of failure SetLastError * must be set to distinguish between a 0 return value and a failure. * * FIXME: The error values for SetLastError may not be right. Can * someone check with the real thing? */ static LONG WIN_SetWindowLong( HWND hwnd, INT offset, LONG newval, WINDOWPROCTYPE type ) { LONG *ptr, retval; WND * wndPtr = WIN_FindWndPtr( hwnd ); STYLESTRUCT style; TRACE(win,"%x=%p %x %lx %x\n",hwnd, wndPtr, offset, newval, type); if (!wndPtr) { /* Is this the right error? */ SetLastError( ERROR_INVALID_WINDOW_HANDLE ); return 0; } if (offset >= 0) { if (offset + sizeof(LONG) > wndPtr->class->cbWndExtra) { WARN( win, "Invalid offset %d\n", offset ); /* Is this the right error? */ SetLastError( ERROR_OUTOFMEMORY ); retval = 0; goto end; } ptr = (LONG *)(((char *)wndPtr->wExtra) + offset); /* Special case for dialog window procedure */ if ((offset == DWL_DLGPROC) && (wndPtr->flags & WIN_ISDIALOG)) { retval = (LONG)WINPROC_GetProc( (HWINDOWPROC)*ptr, type ); WINPROC_SetProc( (HWINDOWPROC *)ptr, (WNDPROC16)newval, type, WIN_PROC_WINDOW ); goto end; } } else switch(offset) { case GWL_ID: ptr = (DWORD*)&wndPtr->wIDmenu; break; case GWL_HINSTANCE: retval = SetWindowWord( hwnd, offset, newval ); goto end; case GWL_WNDPROC: retval = (LONG)WINPROC_GetProc( wndPtr->winproc, type ); WINPROC_SetProc( &wndPtr->winproc, (WNDPROC16)newval, type, WIN_PROC_WINDOW ); goto end;; case GWL_STYLE: style.styleOld = wndPtr->dwStyle; newval &= ~(WS_VISIBLE | WS_CHILD); /* Some bits can't be changed this way */ style.styleNew = newval | (style.styleOld & (WS_VISIBLE | WS_CHILD)); if (wndPtr->flags & WIN_ISWIN32) SendMessageA(hwnd,WM_STYLECHANGING,GWL_STYLE,(LPARAM)&style); wndPtr->dwStyle = style.styleNew; if (wndPtr->flags & WIN_ISWIN32) SendMessageA(hwnd,WM_STYLECHANGED,GWL_STYLE,(LPARAM)&style); retval = style.styleOld; goto end; case GWL_USERDATA: ptr = &wndPtr->userdata; break; case GWL_EXSTYLE: style.styleOld = wndPtr->dwExStyle; style.styleNew = newval; if (wndPtr->flags & WIN_ISWIN32) SendMessageA(hwnd,WM_STYLECHANGING,GWL_EXSTYLE,(LPARAM)&style); wndPtr->dwExStyle = newval; if (wndPtr->flags & WIN_ISWIN32) SendMessageA(hwnd,WM_STYLECHANGED,GWL_EXSTYLE,(LPARAM)&style); retval = style.styleOld; goto end; default: WARN( win, "Invalid offset %d\n", offset ); /* Don't think this is right error but it should do */ SetLastError( ERROR_OUTOFMEMORY ); retval = 0; goto end; } retval = *ptr; *ptr = newval; end: WIN_ReleaseWndPtr(wndPtr); return retval; } /********************************************************************** * GetWindowLong16 (USER.135) */ LONG WINAPI GetWindowLong16( HWND16 hwnd, INT16 offset ) { return WIN_GetWindowLong( (HWND)hwnd, offset, WIN_PROC_16 ); } /********************************************************************** * GetWindowLong32A (USER32.305) */ LONG WINAPI GetWindowLongA( HWND hwnd, INT offset ) { return WIN_GetWindowLong( hwnd, offset, WIN_PROC_32A ); } /********************************************************************** * GetWindowLong32W (USER32.306) */ LONG WINAPI GetWindowLongW( HWND hwnd, INT offset ) { return WIN_GetWindowLong( hwnd, offset, WIN_PROC_32W ); } /********************************************************************** * SetWindowLong16 (USER.136) */ LONG WINAPI SetWindowLong16( HWND16 hwnd, INT16 offset, LONG newval ) { return WIN_SetWindowLong( hwnd, offset, newval, WIN_PROC_16 ); } /********************************************************************** * SetWindowLong32A (USER32.517) */ LONG WINAPI SetWindowLongA( HWND hwnd, INT offset, LONG newval ) { return WIN_SetWindowLong( hwnd, offset, newval, WIN_PROC_32A ); } /********************************************************************** * SetWindowLong32W (USER32.518) Set window attribute * * SetWindowLong() alters one of a window's attributes or sets a 32-bit (long) * value in a window's extra memory. * * The _hwnd_ parameter specifies the window. is the handle to a * window that has extra memory. The _newval_ parameter contains the * new attribute or extra memory value. If positive, the _offset_ * parameter is the byte-addressed location in the window's extra * memory to set. If negative, _offset_ specifies the window * attribute to set, and should be one of the following values: * * GWL_EXSTYLE The window's extended window style * * GWL_STYLE The window's window style. * * GWL_WNDPROC Pointer to the window's window procedure. * * GWL_HINSTANCE The window's pplication instance handle. * * GWL_ID The window's identifier. * * GWL_USERDATA The window's user-specified data. * * If the window is a dialog box, the _offset_ parameter can be one of * the following values: * * DWL_DLGPROC The address of the window's dialog box procedure. * * DWL_MSGRESULT The return value of a message * that the dialog box procedure processed. * * DWL_USER Application specific information. * * RETURNS * * If successful, returns the previous value located at _offset_. Otherwise, * returns 0. * * NOTES * * Extra memory for a window class is specified by a nonzero cbWndExtra * parameter of the WNDCLASS structure passed to RegisterClass() at the * time of class creation. * * Using GWL_WNDPROC to set a new window procedure effectively creates * a window subclass. Use CallWindowProc() in the new windows procedure * to pass messages to the superclass's window procedure. * * The user data is reserved for use by the application which created * the window. * * Do not use GWL_STYLE to change the window's WS_DISABLE style; * instead, call the EnableWindow() function to change the window's * disabled state. * * Do not use GWL_HWNDPARENT to reset the window's parent, use * SetParent() instead. * * Win95: * When offset is GWL_STYLE and the calling app's ver is 4.0, * it sends WM_STYLECHANGING before changing the settings * and WM_STYLECHANGED afterwards. * App ver 4.0 can't use SetWindowLong to change WS_EX_TOPMOST. * * BUGS * * GWL_STYLE does not dispatch WM_STYLE... messages. * * CONFORMANCE * * ECMA-234, Win32 * */ LONG WINAPI SetWindowLongW( HWND hwnd, /* window to alter */ INT offset, /* offset, in bytes, of location to alter */ LONG newval /* new value of location */ ) { return WIN_SetWindowLong( hwnd, offset, newval, WIN_PROC_32W ); } /******************************************************************* * GetWindowText16 (USER.36) */ INT16 WINAPI GetWindowText16( HWND16 hwnd, SEGPTR lpString, INT16 nMaxCount ) { return (INT16)SendMessage16(hwnd, WM_GETTEXT, nMaxCount, (LPARAM)lpString); } /******************************************************************* * GetWindowText32A (USER32.309) */ INT WINAPI GetWindowTextA( HWND hwnd, LPSTR lpString, INT nMaxCount ) { return (INT)SendMessageA( hwnd, WM_GETTEXT, nMaxCount, (LPARAM)lpString ); } /******************************************************************* * InternalGetWindowText (USER32.326) */ INT WINAPI InternalGetWindowText(HWND hwnd,LPWSTR lpString,INT nMaxCount ) { FIXME(win,"(0x%08x,%p,0x%x),stub!\n",hwnd,lpString,nMaxCount); return GetWindowTextW(hwnd,lpString,nMaxCount); } /******************************************************************* * GetWindowText32W (USER32.312) */ INT WINAPI GetWindowTextW( HWND hwnd, LPWSTR lpString, INT nMaxCount ) { return (INT)SendMessageW( hwnd, WM_GETTEXT, nMaxCount, (LPARAM)lpString ); } /******************************************************************* * SetWindowText16 (USER.37) */ BOOL16 WINAPI SetWindowText16( HWND16 hwnd, SEGPTR lpString ) { return (BOOL16)SendMessage16( hwnd, WM_SETTEXT, 0, (LPARAM)lpString ); } /******************************************************************* * SetWindowText32A (USER32.521) */ BOOL WINAPI SetWindowTextA( HWND hwnd, LPCSTR lpString ) { return (BOOL)SendMessageA( hwnd, WM_SETTEXT, 0, (LPARAM)lpString ); } /******************************************************************* * SetWindowText32W (USER32.523) */ BOOL WINAPI SetWindowTextW( HWND hwnd, LPCWSTR lpString ) { return (BOOL)SendMessageW( hwnd, WM_SETTEXT, 0, (LPARAM)lpString ); } /******************************************************************* * GetWindowTextLength16 (USER.38) */ INT16 WINAPI GetWindowTextLength16( HWND16 hwnd ) { return (INT16)SendMessage16( hwnd, WM_GETTEXTLENGTH, 0, 0 ); } /******************************************************************* * GetWindowTextLength32A (USER32.310) */ INT WINAPI GetWindowTextLengthA( HWND hwnd ) { return SendMessageA( hwnd, WM_GETTEXTLENGTH, 0, 0 ); } /******************************************************************* * GetWindowTextLength32W (USER32.311) */ INT WINAPI GetWindowTextLengthW( HWND hwnd ) { return SendMessageW( hwnd, WM_GETTEXTLENGTH, 0, 0 ); } /******************************************************************* * IsWindow16 (USER.47) */ BOOL16 WINAPI IsWindow16( HWND16 hwnd ) { return IsWindow( hwnd ); } void WINAPI WIN16_IsWindow16( CONTEXT *context ) { WORD *stack = PTR_SEG_OFF_TO_LIN(SS_reg(context), SP_reg(context)); HWND16 hwnd = (HWND16)stack[2]; AX_reg(context) = IsWindow( hwnd ); ES_reg(context) = USER_HeapSel; } /******************************************************************* * IsWindow32 (USER32.348) */ BOOL WINAPI IsWindow( HWND hwnd ) { WND * wndPtr; BOOL retvalue; if(!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE; retvalue = (wndPtr->dwMagic == WND_MAGIC); WIN_ReleaseWndPtr(wndPtr); return retvalue; } /***************************************************************** * GetParent16 (USER.46) */ HWND16 WINAPI GetParent16( HWND16 hwnd ) { return (HWND16)GetParent( hwnd ); } /***************************************************************** * GetParent32 (USER32.278) */ HWND WINAPI GetParent( HWND hwnd ) { WND *wndPtr; HWND retvalue; if(!(wndPtr = WIN_FindWndPtr(hwnd))) return 0; if ((!(wndPtr->dwStyle & (WS_POPUP|WS_CHILD)))) { WIN_ReleaseWndPtr(wndPtr); return 0; } WIN_UpdateWndPtr(&wndPtr,((wndPtr->dwStyle & WS_CHILD) ? wndPtr->parent : wndPtr->owner)); retvalue = wndPtr ? wndPtr->hwndSelf : 0; WIN_ReleaseWndPtr(wndPtr); return retvalue; } /***************************************************************** * WIN_GetTopParent * * Get the top-level parent for a child window. * returns a locked pointer */ WND* WIN_GetTopParentPtr( WND* pWnd ) { WND *tmpWnd = WIN_LockWndPtr(pWnd); while( tmpWnd && (tmpWnd->dwStyle & WS_CHILD)) { WIN_UpdateWndPtr(&tmpWnd,tmpWnd->parent); } return tmpWnd; } /***************************************************************** * WIN_GetTopParent * * Get the top-level parent for a child window. */ HWND WIN_GetTopParent( HWND hwnd ) { HWND retvalue; WND *tmpPtr = WIN_FindWndPtr(hwnd); WND *wndPtr = WIN_GetTopParentPtr (tmpPtr ); retvalue = wndPtr ? wndPtr->hwndSelf : 0; WIN_ReleaseWndPtr(tmpPtr); WIN_ReleaseWndPtr(wndPtr); return retvalue; } /***************************************************************** * SetParent16 (USER.233) */ HWND16 WINAPI SetParent16( HWND16 hwndChild, HWND16 hwndNewParent ) { return SetParent( hwndChild, hwndNewParent ); } /***************************************************************** * SetParent32 (USER32.495) */ HWND WINAPI SetParent( HWND hwndChild, HWND hwndNewParent ) { WND *wndPtr; DWORD dwStyle; WND *pWndNewParent; WND *pWndOldParent; HWND retvalue; if(!(wndPtr = WIN_FindWndPtr(hwndChild))) return 0; dwStyle = wndPtr->dwStyle; pWndNewParent = hwndNewParent ? WIN_FindWndPtr(hwndNewParent) : WIN_LockWndPtr(pWndDesktop); /* Windows hides the window first, then shows it again * including the WM_SHOWWINDOW messages and all */ if (dwStyle & WS_VISIBLE) ShowWindow( hwndChild, SW_HIDE ); pWndOldParent = WIN_LockWndPtr((*wndPtr->pDriver->pSetParent)(wndPtr, pWndNewParent)); /* SetParent32 additionally needs to make hwndChild the topmost window in the x-order and send the expected WM_WINDOWPOSCHANGING and WM_WINDOWPOSCHANGED notification messages. */ SetWindowPos( hwndChild, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE|((dwStyle & WS_VISIBLE)?SWP_SHOWWINDOW:0)); /* FIXME: a WM_MOVE is also generated (in the DefWindowProc handler * for WM_WINDOWPOSCHANGED) in Windows, should probably remove SWP_NOMOVE */ retvalue = pWndOldParent?pWndOldParent->hwndSelf:0; WIN_ReleaseWndPtr(pWndOldParent); WIN_ReleaseWndPtr(pWndNewParent); WIN_ReleaseWndPtr(wndPtr); return retvalue; } /******************************************************************* * IsChild16 (USER.48) */ BOOL16 WINAPI IsChild16( HWND16 parent, HWND16 child ) { return IsChild(parent,child); } /******************************************************************* * IsChild32 (USER32.339) */ BOOL WINAPI IsChild( HWND parent, HWND child ) { WND * wndPtr = WIN_FindWndPtr( child ); while (wndPtr && (wndPtr->dwStyle & WS_CHILD)) { WIN_UpdateWndPtr(&wndPtr,wndPtr->parent); if (wndPtr->hwndSelf == parent) { WIN_ReleaseWndPtr(wndPtr); return TRUE; } } WIN_ReleaseWndPtr(wndPtr); return FALSE; } /*********************************************************************** * IsWindowVisible16 (USER.49) */ BOOL16 WINAPI IsWindowVisible16( HWND16 hwnd ) { return IsWindowVisible(hwnd); } /*********************************************************************** * IsWindowVisible32 (USER32.351) */ BOOL WINAPI IsWindowVisible( HWND hwnd ) { BOOL retval; WND *wndPtr = WIN_FindWndPtr( hwnd ); while (wndPtr && (wndPtr->dwStyle & WS_CHILD)) { if (!(wndPtr->dwStyle & WS_VISIBLE)) { WIN_ReleaseWndPtr(wndPtr); return FALSE; } WIN_UpdateWndPtr(&wndPtr,wndPtr->parent); } retval = (wndPtr && (wndPtr->dwStyle & WS_VISIBLE)); WIN_ReleaseWndPtr(wndPtr); return retval; } /*********************************************************************** * WIN_IsWindowDrawable * * hwnd is drawable when it is visible, all parents are not * minimized, and it is itself not minimized unless we are * trying to draw its default class icon. */ BOOL WIN_IsWindowDrawable( WND* wnd, BOOL icon ) { if( (wnd->dwStyle & WS_MINIMIZE && icon && wnd->class->hIcon) || !(wnd->dwStyle & WS_VISIBLE) ) return FALSE; for(wnd = wnd->parent; wnd; wnd = wnd->parent) if( wnd->dwStyle & WS_MINIMIZE || !(wnd->dwStyle & WS_VISIBLE) ) break; return (wnd == NULL); } /******************************************************************* * GetTopWindow16 (USER.229) */ HWND16 WINAPI GetTopWindow16( HWND16 hwnd ) { return GetTopWindow(hwnd); } /******************************************************************* * GetTopWindow32 (USER.229) */ HWND WINAPI GetTopWindow( HWND hwnd ) { HWND retval; WND * wndPtr = WIN_FindWndPtr( hwnd ); if (wndPtr && wndPtr->child) { retval = wndPtr->child->hwndSelf; } else retval = 0; WIN_ReleaseWndPtr(wndPtr); return retval; } /******************************************************************* * GetWindow16 (USER.262) */ HWND16 WINAPI GetWindow16( HWND16 hwnd, WORD rel ) { return GetWindow( hwnd,rel ); } /******************************************************************* * GetWindow32 (USER32.302) */ HWND WINAPI GetWindow( HWND hwnd, WORD rel ) { HWND retval; WND * wndPtr = WIN_FindWndPtr( hwnd ); if (!wndPtr) return 0; switch(rel) { case GW_HWNDFIRST: if (wndPtr->parent) retval = wndPtr->parent->child->hwndSelf; else retval = 0; goto end; case GW_HWNDLAST: if (!wndPtr->parent) { retval = 0; /* Desktop window */ goto end; } while (wndPtr->next) { WIN_UpdateWndPtr(&wndPtr,wndPtr->next); } retval = wndPtr->hwndSelf; goto end; case GW_HWNDNEXT: if (!wndPtr->next) retval = 0; else retval = wndPtr->next->hwndSelf; goto end; case GW_HWNDPREV: if (!wndPtr->parent) { retval = 0; /* Desktop window */ goto end; } WIN_UpdateWndPtr(&wndPtr,wndPtr->parent->child); /* First sibling */ if (wndPtr->hwndSelf == hwnd) { retval = 0; /* First in list */ goto end; } while (wndPtr->next) { if (wndPtr->next->hwndSelf == hwnd) { retval = wndPtr->hwndSelf; goto end; } WIN_UpdateWndPtr(&wndPtr,wndPtr->next); } retval = 0; goto end; case GW_OWNER: retval = wndPtr->owner ? wndPtr->owner->hwndSelf : 0; goto end; case GW_CHILD: retval = wndPtr->child ? wndPtr->child->hwndSelf : 0; goto end; } retval = 0; end: WIN_ReleaseWndPtr(wndPtr); return retval; } /******************************************************************* * GetNextWindow16 (USER.230) */ HWND16 WINAPI GetNextWindow16( HWND16 hwnd, WORD flag ) { if ((flag != GW_HWNDNEXT) && (flag != GW_HWNDPREV)) return 0; return GetWindow16( hwnd, flag ); } /******************************************************************* * ShowOwnedPopups16 (USER.265) */ void WINAPI ShowOwnedPopups16( HWND16 owner, BOOL16 fShow ) { ShowOwnedPopups( owner, fShow ); } /******************************************************************* * ShowOwnedPopups32 (USER32.531) */ BOOL WINAPI ShowOwnedPopups( HWND owner, BOOL fShow ) { WND *pWnd; pWnd = WIN_LockWndPtr(pWndDesktop->child); while (pWnd) { if (pWnd->owner && (pWnd->owner->hwndSelf == owner) && (pWnd->dwStyle & WS_POPUP)) ShowWindow( pWnd->hwndSelf, fShow ? SW_SHOW : SW_HIDE ); WIN_UpdateWndPtr(&pWnd,pWnd->next); } return TRUE; } /******************************************************************* * GetLastActivePopup16 (USER.287) */ HWND16 WINAPI GetLastActivePopup16( HWND16 hwnd ) { return GetLastActivePopup( hwnd ); } /******************************************************************* * GetLastActivePopup32 (USER32.256) */ HWND WINAPI GetLastActivePopup( HWND hwnd ) { WND *wndPtr; HWND retval; wndPtr = WIN_FindWndPtr(hwnd); if (!wndPtr) return hwnd; retval = wndPtr->hwndLastActive; WIN_ReleaseWndPtr(wndPtr); return retval; } /******************************************************************* * WIN_BuildWinArray * * Build an array of pointers to the children of a given window. * The array must be freed with HeapFree(SystemHeap). Return NULL * when no windows are found. */ WND **WIN_BuildWinArray( WND *wndPtr, UINT bwaFlags, UINT* pTotal ) { /* Future : this function will lock all windows associated with this array */ WND **list, **ppWnd; WND *pWnd; UINT count = 0, skipOwned, skipHidden; DWORD skipFlags; skipHidden = bwaFlags & BWA_SKIPHIDDEN; skipOwned = bwaFlags & BWA_SKIPOWNED; skipFlags = (bwaFlags & BWA_SKIPDISABLED) ? WS_DISABLED : 0; if( bwaFlags & BWA_SKIPICONIC ) skipFlags |= WS_MINIMIZE; /* First count the windows */ if (!wndPtr) wndPtr = WIN_GetDesktop(); pWnd = WIN_LockWndPtr(wndPtr->child); while (pWnd) { if( !(pWnd->dwStyle & skipFlags) && !(skipOwned && pWnd->owner) && (!skipHidden || (pWnd->dwStyle & WS_VISIBLE)) ) count++; WIN_UpdateWndPtr(&pWnd,pWnd->next); } if( count ) { /* Now build the list of all windows */ if ((list = (WND **)HeapAlloc( SystemHeap, 0, sizeof(WND *) * (count + 1)))) { for (pWnd = WIN_LockWndPtr(wndPtr->child), ppWnd = list, count = 0; pWnd; WIN_UpdateWndPtr(&pWnd,pWnd->next)) { if( (pWnd->dwStyle & skipFlags) || (skipOwned && pWnd->owner) ); else if( !skipHidden || pWnd->dwStyle & WS_VISIBLE ) { *ppWnd++ = pWnd; count++; } } WIN_ReleaseWndPtr(pWnd); *ppWnd = NULL; } else count = 0; } else list = NULL; if( pTotal ) *pTotal = count; return list; } /******************************************************************* * WIN_ReleaseWinArray */ void WIN_ReleaseWinArray(WND **wndArray) { /* Future : this function will also unlock all windows associated with wndArray */ HeapFree( SystemHeap, 0, wndArray ); } /******************************************************************* * EnumWindows16 (USER.54) */ BOOL16 WINAPI EnumWindows16( WNDENUMPROC16 lpEnumFunc, LPARAM lParam ) { WND **list, **ppWnd; /* We have to build a list of all windows first, to avoid */ /* unpleasant side-effects, for instance if the callback */ /* function changes the Z-order of the windows. */ if (!(list = WIN_BuildWinArray(WIN_GetDesktop(), 0, NULL ))) { WIN_ReleaseDesktop(); return FALSE; } /* Now call the callback function for every window */ for (ppWnd = list; *ppWnd; ppWnd++) { LRESULT lpEnumFuncRetval; int iWndsLocks = 0; /* Make sure that the window still exists */ if (!IsWindow((*ppWnd)->hwndSelf)) continue; /* To avoid any deadlocks, all the locks on the windows structures must be suspended before the control is passed to the application */ iWndsLocks = WIN_SuspendWndsLock(); lpEnumFuncRetval = lpEnumFunc( (*ppWnd)->hwndSelf, lParam); WIN_RestoreWndsLock(iWndsLocks); if (!lpEnumFuncRetval) break; } WIN_ReleaseWinArray(list); WIN_ReleaseDesktop(); return TRUE; } /******************************************************************* * EnumWindows32 (USER32.193) */ BOOL WINAPI EnumWindows( WNDENUMPROC lpEnumFunc, LPARAM lParam ) { return (BOOL)EnumWindows16( (WNDENUMPROC16)lpEnumFunc, lParam ); } /********************************************************************** * EnumTaskWindows16 (USER.225) */ BOOL16 WINAPI EnumTaskWindows16( HTASK16 hTask, WNDENUMPROC16 func, LPARAM lParam ) { WND **list, **ppWnd; /* This function is the same as EnumWindows(), */ /* except for an added check on the window's task. */ if (!(list = WIN_BuildWinArray( WIN_GetDesktop(), 0, NULL ))) { WIN_ReleaseDesktop(); return FALSE; } /* Now call the callback function for every window */ for (ppWnd = list; *ppWnd; ppWnd++) { LRESULT funcRetval; int iWndsLocks = 0; /* Make sure that the window still exists */ if (!IsWindow((*ppWnd)->hwndSelf)) continue; if (QUEUE_GetQueueTask((*ppWnd)->hmemTaskQ) != hTask) continue; /* To avoid any deadlocks, all the locks on the windows structures must be suspended before the control is passed to the application */ iWndsLocks = WIN_SuspendWndsLock(); funcRetval = func( (*ppWnd)->hwndSelf, lParam ); WIN_RestoreWndsLock(iWndsLocks); if (!funcRetval) break; } WIN_ReleaseWinArray(list); WIN_ReleaseDesktop(); return TRUE; } /********************************************************************** * EnumThreadWindows (USER32.190) */ BOOL WINAPI EnumThreadWindows( DWORD id, WNDENUMPROC func, LPARAM lParam ) { THDB *tdb = THREAD_IdToTHDB(id); return (BOOL16)EnumTaskWindows16(tdb->teb.htask16, (WNDENUMPROC16)func, lParam); } /********************************************************************** * WIN_EnumChildWindows * * Helper function for EnumChildWindows(). */ static BOOL16 WIN_EnumChildWindows( WND **ppWnd, WNDENUMPROC16 func, LPARAM lParam ) { WND **childList; BOOL16 ret = FALSE; for ( ; *ppWnd; ppWnd++) { int iWndsLocks = 0; /* Make sure that the window still exists */ if (!IsWindow((*ppWnd)->hwndSelf)) continue; /* Build children list first */ childList = WIN_BuildWinArray( *ppWnd, BWA_SKIPOWNED, NULL ); /* To avoid any deadlocks, all the locks on the windows structures must be suspended before the control is passed to the application */ iWndsLocks = WIN_SuspendWndsLock(); ret = func( (*ppWnd)->hwndSelf, lParam ); WIN_RestoreWndsLock(iWndsLocks); if (childList) { if (ret) ret = WIN_EnumChildWindows( childList, func, lParam ); WIN_ReleaseWinArray(childList); } if (!ret) return FALSE; } return TRUE; } /********************************************************************** * EnumChildWindows16 (USER.55) */ BOOL16 WINAPI EnumChildWindows16( HWND16 parent, WNDENUMPROC16 func, LPARAM lParam ) { WND **list, *pParent; if (!(pParent = WIN_FindWndPtr( parent ))) return FALSE; if (!(list = WIN_BuildWinArray( pParent, BWA_SKIPOWNED, NULL ))) { WIN_ReleaseWndPtr(pParent); return FALSE; } WIN_EnumChildWindows( list, func, lParam ); WIN_ReleaseWinArray(list); WIN_ReleaseWndPtr(pParent); return TRUE; } /********************************************************************** * EnumChildWindows32 (USER32.178) */ BOOL WINAPI EnumChildWindows( HWND parent, WNDENUMPROC func, LPARAM lParam ) { return (BOOL)EnumChildWindows16( (HWND16)parent, (WNDENUMPROC16)func, lParam ); } /******************************************************************* * AnyPopup16 (USER.52) */ BOOL16 WINAPI AnyPopup16(void) { return AnyPopup(); } /******************************************************************* * AnyPopup32 (USER32.4) */ BOOL WINAPI AnyPopup(void) { WND *wndPtr = WIN_LockWndPtr(pWndDesktop->child); BOOL retvalue; while (wndPtr) { if (wndPtr->owner && (wndPtr->dwStyle & WS_VISIBLE)) { retvalue = TRUE; goto end; } WIN_UpdateWndPtr(&wndPtr,wndPtr->next); } retvalue = FALSE; end: WIN_ReleaseWndPtr(wndPtr); return retvalue; } /******************************************************************* * FlashWindow16 (USER.105) */ BOOL16 WINAPI FlashWindow16( HWND16 hWnd, BOOL16 bInvert ) { return FlashWindow( hWnd, bInvert ); } /******************************************************************* * FlashWindow32 (USER32.202) */ BOOL WINAPI FlashWindow( HWND hWnd, BOOL bInvert ) { WND *wndPtr = WIN_FindWndPtr(hWnd); TRACE(win,"%04x\n", hWnd); if (!wndPtr) return FALSE; if (wndPtr->dwStyle & WS_MINIMIZE) { if (bInvert && !(wndPtr->flags & WIN_NCACTIVATED)) { HDC hDC = GetDC(hWnd); if (!SendMessage16( hWnd, WM_ERASEBKGND, (WPARAM16)hDC, 0 )) wndPtr->flags |= WIN_NEEDS_ERASEBKGND; ReleaseDC( hWnd, hDC ); wndPtr->flags |= WIN_NCACTIVATED; } else { PAINT_RedrawWindow( hWnd, 0, 0, RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW | RDW_FRAME, 0 ); wndPtr->flags &= ~WIN_NCACTIVATED; } WIN_ReleaseWndPtr(wndPtr); return TRUE; } else { WPARAM16 wparam; if (bInvert) wparam = !(wndPtr->flags & WIN_NCACTIVATED); else wparam = (hWnd == GetActiveWindow()); SendMessage16( hWnd, WM_NCACTIVATE, wparam, (LPARAM)0 ); WIN_ReleaseWndPtr(wndPtr); return wparam; } } /******************************************************************* * SetSysModalWindow16 (USER.188) */ HWND16 WINAPI SetSysModalWindow16( HWND16 hWnd ) { HWND hWndOldModal = hwndSysModal; hwndSysModal = hWnd; FIXME(win, "EMPTY STUB !! SetSysModalWindow(%04x) !\n", hWnd); return hWndOldModal; } /******************************************************************* * GetSysModalWindow16 (USER.52) */ HWND16 WINAPI GetSysModalWindow16(void) { return hwndSysModal; } /******************************************************************* * GetWindowContextHelpId (USER32.303) */ DWORD WINAPI GetWindowContextHelpId( HWND hwnd ) { DWORD retval; WND *wnd = WIN_FindWndPtr( hwnd ); if (!wnd) return 0; retval = wnd->helpContext; WIN_ReleaseWndPtr(wnd); return retval; } /******************************************************************* * SetWindowContextHelpId (USER32.515) */ BOOL WINAPI SetWindowContextHelpId( HWND hwnd, DWORD id ) { WND *wnd = WIN_FindWndPtr( hwnd ); if (!wnd) return FALSE; wnd->helpContext = id; WIN_ReleaseWndPtr(wnd); return TRUE; } /******************************************************************* * DRAG_QueryUpdate * * recursively find a child that contains spDragInfo->pt point * and send WM_QUERYDROPOBJECT */ BOOL16 DRAG_QueryUpdate( HWND hQueryWnd, SEGPTR spDragInfo, BOOL bNoSend ) { BOOL16 wParam,bResult = 0; POINT pt; LPDRAGINFO ptrDragInfo = (LPDRAGINFO) PTR_SEG_TO_LIN(spDragInfo); WND *ptrQueryWnd = WIN_FindWndPtr(hQueryWnd),*ptrWnd; RECT tempRect; if( !ptrQueryWnd || !ptrDragInfo ) { WIN_ReleaseWndPtr(ptrQueryWnd); return 0; } CONV_POINT16TO32( &ptrDragInfo->pt, &pt ); GetWindowRect(hQueryWnd,&tempRect); if( !PtInRect(&tempRect,pt) || (ptrQueryWnd->dwStyle & WS_DISABLED) ) { WIN_ReleaseWndPtr(ptrQueryWnd); return 0; } if( !(ptrQueryWnd->dwStyle & WS_MINIMIZE) ) { tempRect = ptrQueryWnd->rectClient; if(ptrQueryWnd->dwStyle & WS_CHILD) MapWindowPoints( ptrQueryWnd->parent->hwndSelf, 0, (LPPOINT)&tempRect, 2 ); if (PtInRect( &tempRect, pt)) { wParam = 0; for (ptrWnd = WIN_LockWndPtr(ptrQueryWnd->child); ptrWnd ;WIN_UpdateWndPtr(&ptrWnd,ptrWnd->next)) { if( ptrWnd->dwStyle & WS_VISIBLE ) { GetWindowRect( ptrWnd->hwndSelf, &tempRect ); if (PtInRect( &tempRect, pt )) break; } } if(ptrWnd) { TRACE(msg,"hwnd = %04x, %d %d - %d %d\n", ptrWnd->hwndSelf, ptrWnd->rectWindow.left, ptrWnd->rectWindow.top, ptrWnd->rectWindow.right, ptrWnd->rectWindow.bottom ); if( !(ptrWnd->dwStyle & WS_DISABLED) ) bResult = DRAG_QueryUpdate(ptrWnd->hwndSelf, spDragInfo, bNoSend); WIN_ReleaseWndPtr(ptrWnd); } if(bResult) { WIN_ReleaseWndPtr(ptrQueryWnd); return bResult; } } else wParam = 1; } else wParam = 1; ScreenToClient16(hQueryWnd,&ptrDragInfo->pt); ptrDragInfo->hScope = hQueryWnd; bResult = ( bNoSend ) ? ptrQueryWnd->dwExStyle & WS_EX_ACCEPTFILES : SendMessage16( hQueryWnd ,WM_QUERYDROPOBJECT , (WPARAM16)wParam ,(LPARAM) spDragInfo ); if( !bResult ) CONV_POINT32TO16( &pt, &ptrDragInfo->pt ); WIN_ReleaseWndPtr(ptrQueryWnd); return bResult; } /******************************************************************* * DragDetect (USER.465) */ BOOL16 WINAPI DragDetect16( HWND16 hWnd, POINT16 pt ) { POINT pt32; CONV_POINT16TO32( &pt, &pt32 ); return DragDetect( hWnd, pt32 ); } /******************************************************************* * DragDetect32 (USER32.151) */ BOOL WINAPI DragDetect( HWND hWnd, POINT pt ) { MSG16 msg; RECT16 rect; rect.left = pt.x - wDragWidth; rect.right = pt.x + wDragWidth; rect.top = pt.y - wDragHeight; rect.bottom = pt.y + wDragHeight; SetCapture(hWnd); while(1) { while(PeekMessage16(&msg ,0 ,WM_MOUSEFIRST ,WM_MOUSELAST ,PM_REMOVE)) { if( msg.message == WM_LBUTTONUP ) { ReleaseCapture(); return 0; } if( msg.message == WM_MOUSEMOVE ) { if( !PtInRect16( &rect, MAKEPOINT16(msg.lParam) ) ) { ReleaseCapture(); return 1; } } } WaitMessage(); } return 0; } /****************************************************************************** * DragObject16 (USER.464) */ DWORD WINAPI DragObject16( HWND16 hwndScope, HWND16 hWnd, UINT16 wObj, HANDLE16 hOfStruct, WORD szList, HCURSOR16 hCursor ) { MSG16 msg; LPDRAGINFO lpDragInfo; SEGPTR spDragInfo; HCURSOR16 hDragCursor=0, hOldCursor=0, hBummer=0; HGLOBAL16 hDragInfo = GlobalAlloc16( GMEM_SHARE | GMEM_ZEROINIT, 2*sizeof(DRAGINFO)); WND *wndPtr = WIN_FindWndPtr(hWnd); HCURSOR16 hCurrentCursor = 0; HWND16 hCurrentWnd = 0; lpDragInfo = (LPDRAGINFO) GlobalLock16(hDragInfo); spDragInfo = (SEGPTR) WIN16_GlobalLock16(hDragInfo); if( !lpDragInfo || !spDragInfo ) { WIN_ReleaseWndPtr(wndPtr); return 0L; } hBummer = LoadCursor16(0, IDC_BUMMER16); if( !hBummer || !wndPtr ) { GlobalFree16(hDragInfo); WIN_ReleaseWndPtr(wndPtr); return 0L; } if(hCursor) { if( !(hDragCursor = CURSORICON_IconToCursor(hCursor, FALSE)) ) { GlobalFree16(hDragInfo); WIN_ReleaseWndPtr(wndPtr); return 0L; } if( hDragCursor == hCursor ) hDragCursor = 0; else hCursor = hDragCursor; hOldCursor = SetCursor(hDragCursor); } lpDragInfo->hWnd = hWnd; lpDragInfo->hScope = 0; lpDragInfo->wFlags = wObj; lpDragInfo->hList = szList; /* near pointer! */ lpDragInfo->hOfStruct = hOfStruct; lpDragInfo->l = 0L; SetCapture(hWnd); ShowCursor( TRUE ); do { do{ WaitMessage(); } while( !PeekMessage16(&msg,0,WM_MOUSEFIRST,WM_MOUSELAST,PM_REMOVE) ); *(lpDragInfo+1) = *lpDragInfo; lpDragInfo->pt = msg.pt; /* update DRAGINFO struct */ TRACE(msg,"lpDI->hScope = %04x\n",lpDragInfo->hScope); if( DRAG_QueryUpdate(hwndScope, spDragInfo, FALSE) > 0 ) hCurrentCursor = hCursor; else { hCurrentCursor = hBummer; lpDragInfo->hScope = 0; } if( hCurrentCursor ) SetCursor(hCurrentCursor); /* send WM_DRAGLOOP */ SendMessage16( hWnd, WM_DRAGLOOP, (WPARAM16)(hCurrentCursor != hBummer), (LPARAM) spDragInfo ); /* send WM_DRAGSELECT or WM_DRAGMOVE */ if( hCurrentWnd != lpDragInfo->hScope ) { if( hCurrentWnd ) SendMessage16( hCurrentWnd, WM_DRAGSELECT, 0, (LPARAM)MAKELONG(LOWORD(spDragInfo)+sizeof(DRAGINFO), HIWORD(spDragInfo)) ); hCurrentWnd = lpDragInfo->hScope; if( hCurrentWnd ) SendMessage16( hCurrentWnd, WM_DRAGSELECT, 1, (LPARAM)spDragInfo); } else if( hCurrentWnd ) SendMessage16( hCurrentWnd, WM_DRAGMOVE, 0, (LPARAM)spDragInfo); } while( msg.message != WM_LBUTTONUP && msg.message != WM_NCLBUTTONUP ); ReleaseCapture(); ShowCursor( FALSE ); if( hCursor ) { SetCursor( hOldCursor ); if (hDragCursor) DestroyCursor( hDragCursor ); } if( hCurrentCursor != hBummer ) msg.lParam = SendMessage16( lpDragInfo->hScope, WM_DROPOBJECT, (WPARAM16)hWnd, (LPARAM)spDragInfo ); else msg.lParam = 0; GlobalFree16(hDragInfo); WIN_ReleaseWndPtr(wndPtr); return (DWORD)(msg.lParam); }