- [Win32k] Implement AttachThreadInput, not yet connected to the thread message queue, update related.

- See http://www.codeproject.com/KB/cpp/onscreenkeyboard.aspx for test program.

svn path=/trunk/; revision=43352

reactos/include/reactos/win32k/ntuser.h

@@ -124,7 +124,13 @@ typedef struct _CALLBACKWND
      PVOID pvWnd;
 } CALLBACKWND, *PCALLBACKWND;
 
-#define CI_CURTHPRHOOK    0x00000010
+#define CI_TRANSACTION       0x00000001
+#define CI_QUEUEMSG          0x00000002
+#define CI_WOW               0x00000004
+#define CI_INITTHREAD        0x00000008
+#define CI_CURTHPRHOOK       0x00000010
+#define CI_CLASSESREGISTERED 0x00000020
+#define CI_IMMACTIVATE       0x00000040
 
 typedef struct _CLIENTINFO
 {

reactos/subsystems/win32/win32k/include/input.h

@@ -15,6 +15,15 @@ typedef struct _KBL
   DWORD klid; // Low word - language id. High word - device id.
 } KBL, *PKBL;
 
+typedef struct _ATTACHINFO
+{
+  struct _ATTACHINFO* paiNext;
+  PTHREADINFO pti1;
+  PTHREADINFO pti2;
+} ATTACHINFO, *PATTACHINFO;
+
+extern PATTACHINFO gpai;
+
 #define KBL_UNLOAD 1
 #define KBL_PRELOAD 2
 #define KBL_RESET 4
@@ -33,6 +42,7 @@ BOOL FASTCALL IntKeyboardInput(KEYBDINPUT *ki);
 
 BOOL UserInitDefaultKeyboardLayout();
 PKBL UserHklToKbl(HKL hKl);
+BOOL FASTCALL UserAttachThreadInput(PTHREADINFO,PTHREADINFO,BOOL);
 
 #define ThreadHasInputAccess(W32Thread) \
   (TRUE)

reactos/subsystems/win32/win32k/include/tags.h

@@ -26,6 +26,7 @@
 #define TAG_CALLBACK    'KCBC' /* callback memory */
 #define TAG_WINSTA      'ATSW' /* window station */
 #define TAG_PDCE        'cdsU' /* dce */
+#define TAG_ATTACHINFO  'iasU' /* Attach Info Input */
 #define TAG_INPUT       'yssU' /* Input */
 
 /* gdi objects from the handle table */

reactos/subsystems/win32/win32k/include/win32.h

@@ -105,10 +105,18 @@ typedef struct _THREADINFO
     PDESKTOPINFO        pDeskInfo;
     PCLIENTINFO         pClientInfo;
     FLONG               TIF_flags;
+    PUNICODE_STRING     pstrAppName;
     LONG                timeLast;
+    ULONG_PTR           idLast;
+    INT                 exitCode;
     HANDLE              hDesktop;
     UINT                cPaintsReady; /* Count of paints pending. */
     UINT                cTimersReady; /* Count of timers pending. */
+    DWORD               dwExpWinVer;
+    DWORD               dwCompatFlags;
+    DWORD               dwCompatFlags2;
+    struct _USER_MESSAGE_QUEUE* pqAttach;
+    PTHREADINFO         ptiSibling;
     ULONG               fsHooks;
     PHOOK               sphkCurrent;
     LIST_ENTRY          PtiLink;

reactos/subsystems/win32/win32k/ntuser/input.c

@@ -1,23 +1,4 @@
 /*
- *  ReactOS W32 Subsystem
- *  Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-/* $Id$
- *
  * COPYRIGHT:        See COPYING in the top level directory
  * PROJECT:          ReactOS kernel
  * PURPOSE:          Window classes
@@ -42,6 +23,7 @@ extern NTSTATUS Win32kInitWin32Thread(PETHREAD Thread);
 
 PTHREADINFO ptiRawInput;
 PKTIMER MasterTimer;
+PATTACHINFO gpai = NULL;
 
 static HANDLE MouseDeviceHandle;
 static HANDLE MouseThreadHandle;
@@ -1324,6 +1306,57 @@ IntKeyboardInput(KEYBDINPUT *ki)
    return FALSE;
 }
 
+BOOL FASTCALL
+UserAttachThreadInput( PTHREADINFO pti, PTHREADINFO ptiTo, BOOL fAttach)
+{
+   PATTACHINFO pai;
+
+   /* Can not be the same thread.*/
+   if (pti == ptiTo) return FALSE;
+
+   /* Do not attach if IMM is in activate mode or between different desktops. */
+   if ( pti->pClientInfo->CI_flags & CI_IMMACTIVATE ||
+        ptiTo->pClientInfo->CI_flags & CI_IMMACTIVATE ||
+        pti->Desktop != ptiTo->Desktop )
+      return FALSE;
+
+   /* If Attach set, allocate and link. */
+   if ( fAttach )
+   {
+      pai = ExAllocatePoolWithTag(PagedPool, sizeof(ATTACHINFO), TAG_ATTACHINFO);
+      if ( !pai ) return FALSE;
+
+      pai->paiNext = gpai;
+      pai->pti1 = pti;
+      pai->pti2 = ptiTo;
+      gpai = pai;
+   }
+   else /* If clear, unlink and free it. */
+   {
+      PATTACHINFO paiprev = NULL;
+
+      if ( !gpai ) return FALSE;
+
+      pai = gpai;
+
+      /* Search list and free if found or return false. */
+      do
+      {
+        if ( pai->pti2 == ptiTo && pai->pti1 == pti ) break;
+        paiprev = pai;
+        pai = pai->paiNext;
+      } while (pai);
+
+      if ( !pai ) return FALSE;
+
+      if (paiprev) paiprev->paiNext = pai->paiNext;
+
+      ExFreePoolWithTag(pai, TAG_ATTACHINFO);
+  }
+
+  return TRUE;
+}
+
 UINT
 APIENTRY
 NtUserSendInput(

reactos/subsystems/win32/win32k/ntuser/ntstubs.c

@@ -31,9 +31,36 @@ NtUserAttachThreadInput(
     IN DWORD idAttachTo,
     IN BOOL fAttach)
 {
-   UNIMPLEMENTED
+  NTSTATUS Status;
+  PETHREAD Thread, ThreadTo;
+  PTHREADINFO pti, ptiTo;
+  BOOL Ret = FALSE;
 
-   return 0;
+  UserEnterExclusive();
+  Status = PsLookupThreadByThreadId((HANDLE)idAttach, &Thread);
+  if (!NT_SUCCESS(Status))
+  {
+     SetLastWin32Error(ERROR_INVALID_PARAMETER);
+     goto Exit;
+  }
+  Status = PsLookupThreadByThreadId((HANDLE)idAttachTo, &ThreadTo);
+  if (!NT_SUCCESS(Status))
+  {
+     SetLastWin32Error(ERROR_INVALID_PARAMETER);
+     ObDereferenceObject(Thread);
+     goto Exit;
+  }
+
+  pti = PsGetThreadWin32Thread(Thread);
+  ptiTo = PsGetThreadWin32Thread(ThreadTo);
+  ObDereferenceObject(Thread);
+  ObDereferenceObject(ThreadTo);
+
+  Ret = UserAttachThreadInput( pti, ptiTo, fAttach);
+
+Exit:
+  UserLeave();
+  return Ret;
 }
 
 //