mirror of
https://github.com/reactos/reactos.git
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rewrote NtUserBuildHwndList()
svn path=/trunk/; revision=9314
This commit is contained in:
Thomas Bluemel
parent
e8953aae82
commit
879f672ffe
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@ -16,7 +16,7 @@
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* $Id: message.c,v 1.61 2004/05/05 22:13:17 weiden Exp $
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/* $Id: message.c,v 1.62 2004/05/05 22:26:03 weiden Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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@ -450,10 +450,9 @@ IntTranslateMouseMessage(PUSER_MESSAGE_QUEUE ThreadQueue, LPMSG Msg, USHORT *Hit
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{
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if(Wnd != Window)
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{
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MSG NewMsg = *Msg;
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/* post the message to the other window */
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NewMsg.hwnd = Wnd->Self;
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MsqPostMessage(Wnd->MessageQueue, &NewMsg, FALSE);
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Msg->hwnd = Wnd->Self;
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MsqPostMessage(Wnd->MessageQueue, Msg, FALSE);
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/* eat the message */
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IntReleaseWindowObject(Wnd);
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@ -16,7 +16,7 @@
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* $Id: window.c,v 1.223 2004/05/02 17:25:21 weiden Exp $
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/* $Id: window.c,v 1.224 2004/05/05 22:26:04 weiden Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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@ -1144,121 +1144,137 @@ NtUserBuildHwndList(
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HWND* pWnd,
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ULONG nBufSize)
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{
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NTSTATUS Status;
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ULONG dwCount = 0;
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/* FIXME handle bChildren */
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if ( hwndParent )
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if(hwndParent)
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{
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PWINDOW_OBJECT Window, Child;
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if(!(Window = IntGetWindowObject(hwndParent)))
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{
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PWINDOW_OBJECT WindowObject = NULL;
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PWINDOW_OBJECT Child;
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WindowObject = IntGetWindowObject ( hwndParent );
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if ( !WindowObject )
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{
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DPRINT("Bad window handle 0x%x\n", hwndParent);
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SetLastWin32Error(ERROR_INVALID_WINDOW_HANDLE);
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return 0;
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}
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IntLockRelatives(WindowObject );
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Child = WindowObject->FirstChild;
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while (Child)
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{
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if ( pWnd && dwCount < nBufSize )
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pWnd[dwCount] = Child->Self;
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dwCount++;
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Child = Child->NextSibling;
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}
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IntUnLockRelatives(WindowObject);
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IntReleaseWindowObject ( WindowObject );
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SetLastWin32Error(ERROR_INVALID_HANDLE);
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return 0;
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}
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else if ( dwThreadId )
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IntLockRelatives(Window);
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for(Child = Window->FirstChild; Child != NULL; Child = Child->NextSibling)
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{
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if(dwCount++ < nBufSize && pWnd)
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{
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Status = MmCopyToCaller(pWnd++, &Child->Self, sizeof(HWND));
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if(!NT_SUCCESS(Status))
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{
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SetLastNtError(Status);
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break;
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}
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}
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}
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IntUnLockRelatives(Window);
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IntReleaseWindowObject(Window);
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}
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else if(dwThreadId)
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{
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PETHREAD Thread;
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PW32THREAD W32Thread;
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PLIST_ENTRY Current;
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PWINDOW_OBJECT *Window;
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Status = PsLookupThreadByThreadId((PVOID)dwThreadId, &Thread);
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if(!NT_SUCCESS(Status))
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{
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SetLastWin32Error(ERROR_INVALID_PARAMETER);
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return 0;
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}
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if(!(W32Thread = Thread->Win32Thread))
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{
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NTSTATUS Status;
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struct _ETHREAD* Thread;
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struct _EPROCESS* ThreadsProcess;
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struct _W32PROCESS* Win32Process;
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struct _WINSTATION_OBJECT* WindowStation;
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PUSER_HANDLE_TABLE HandleTable;
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PLIST_ENTRY Current;
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PUSER_HANDLE_BLOCK Block = NULL;
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ULONG i;
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Status = PsLookupThreadByThreadId ( (PVOID)dwThreadId, &Thread );
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if ( !NT_SUCCESS(Status) || !Thread )
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{
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DPRINT("Bad ThreadId 0x%x\n", dwThreadId );
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SetLastWin32Error(ERROR_INVALID_HANDLE);
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return 0;
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}
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ThreadsProcess = Thread->ThreadsProcess;
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ASSERT(ThreadsProcess);
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Win32Process = ThreadsProcess->Win32Process;
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ASSERT(Win32Process);
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WindowStation = Win32Process->WindowStation;
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ASSERT(WindowStation);
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HandleTable = (PUSER_HANDLE_TABLE)(WindowStation->HandleTable);
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ASSERT(HandleTable);
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ObDereferenceObject(Thread);
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ObmpLockHandleTable(HandleTable);
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Current = HandleTable->ListHead.Flink;
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while ( Current != &HandleTable->ListHead )
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{
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Block = CONTAINING_RECORD(Current, USER_HANDLE_BLOCK, ListEntry);
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for ( i = 0; i < HANDLE_BLOCK_ENTRIES; i++ )
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{
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PVOID ObjectBody = Block->Handles[i].ObjectBody;
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if ( ObjectBody )
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{
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if ( pWnd && dwCount < nBufSize )
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{
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pWnd[dwCount] =
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(HWND)IntReferenceWindowObject(ObjectBody);
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}
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dwCount++;
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}
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}
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Current = Current->Flink;
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}
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ObmpUnlockHandleTable(HandleTable);
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DPRINT1("Thread is not a GUI Thread!\n");
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SetLastWin32Error(ERROR_INVALID_PARAMETER);
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return 0;
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}
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else
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IntLockThreadWindows(W32Thread);
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Current = W32Thread->WindowListHead.Flink;
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while(Current != &(W32Thread->WindowListHead))
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{
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PDESKTOP_OBJECT DesktopObject = NULL;
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KIRQL OldIrql;
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PWINDOW_OBJECT Child, WndDesktop;
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#if 0
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if ( hDesktop )
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DesktopObject = IntGetDesktopObject ( hDesktop );
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else
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#endif
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DesktopObject = IntGetActiveDesktop();
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if (!DesktopObject)
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{
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DPRINT("Bad desktop handle 0x%x\n", hDesktop );
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SetLastWin32Error(ERROR_INVALID_HANDLE);
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return 0;
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}
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KeAcquireSpinLock ( &DesktopObject->Lock, &OldIrql );
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WndDesktop = IntGetWindowObject(DesktopObject->DesktopWindow);
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Child = (WndDesktop ? WndDesktop->FirstChild : NULL);
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while (Child)
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{
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if ( pWnd && dwCount < nBufSize )
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pWnd[dwCount] = Child->Self;
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dwCount++;
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Child = Child->NextSibling;
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}
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KeReleaseSpinLock ( &DesktopObject->Lock, OldIrql );
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*Window = CONTAINING_RECORD(Current, WINDOW_OBJECT, ThreadListEntry);
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ASSERT(*Window);
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if(dwCount < nBufSize && pWnd && ((*Window)->Style & WS_CHILD))
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{
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Status = MmCopyToCaller(pWnd++, &(*Window)->Self, sizeof(HWND));
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if(!NT_SUCCESS(Status))
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{
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SetLastNtError(Status);
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break;
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}
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}
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if(!((*Window)->Style & WS_CHILD))
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{
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dwCount++;
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}
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Current = Current->Flink;
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}
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IntUnLockThreadWindows(W32Thread);
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ObDereferenceObject(Thread);
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}
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else
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{
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PDESKTOP_OBJECT Desktop;
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PWINDOW_OBJECT Window, Child;
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if(hDesktop == NULL && !(Desktop = IntGetActiveDesktop()))
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{
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SetLastWin32Error(ERROR_INVALID_HANDLE);
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return 0;
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}
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if(hDesktop)
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{
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Status = IntValidateDesktopHandle(hDesktop,
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UserMode,
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0,
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&Desktop);
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if(!NT_SUCCESS(Status))
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{
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SetLastWin32Error(ERROR_INVALID_HANDLE);
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return 0;
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}
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}
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if(!(Window = IntGetWindowObject(Desktop->DesktopWindow)))
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{
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if(hDesktop)
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ObDereferenceObject(Desktop);
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SetLastWin32Error(ERROR_INVALID_WINDOW_HANDLE);
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return 0;
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}
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IntLockRelatives(Window);
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for(Child = Window->FirstChild; Child != NULL; Child = Child->NextSibling)
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{
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if(dwCount++ < nBufSize && pWnd)
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{
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Status = MmCopyToCaller(pWnd++, &Child->Self, sizeof(HWND));
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if(!NT_SUCCESS(Status))
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{
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SetLastNtError(Status);
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break;
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}
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}
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}
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IntUnLockRelatives(Window);
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IntReleaseWindowObject(Window);
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if(hDesktop)
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ObDereferenceObject(Desktop);
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}
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return dwCount;
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}
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