[WIN32K] Fix 64 bit issues (#420)

- Fix ULONG/SIZE_T issues
- Use LOWORD/HIWORD
- Change a struct member to HANDLE
- Implement lstrlenW helper function

win32ss/gdi/ntgdi/dibobj.c

@@ -1814,7 +1814,7 @@ DIB_CreateDIBSection(
         if (mapBits) bm.bmBits = (char *)mapBits + (offset - mapOffset);
     }
     else if (ovr_pitch && offset)
-        bm.bmBits = (LPVOID) offset;
+        bm.bmBits = UlongToPtr(offset);
     else
     {
         offset = 0;

win32ss/gdi/ntgdi/font.c

@@ -446,10 +446,10 @@ NtGdiAddFontResourceW(
     DPRINT("NtGdiAddFontResourceW\n");
 
     /* cwc = Length + trailing zero. */
-    if (cwc <= 1 || cwc > UNICODE_STRING_MAX_CHARS)
+    if ((cwc <= 1) || (cwc > UNICODE_STRING_MAX_CHARS))
         return 0;
 
-    SafeFileName.MaximumLength = cwc * sizeof(WCHAR);
+    SafeFileName.MaximumLength = (USHORT)(cwc * sizeof(WCHAR));
     SafeFileName.Length = SafeFileName.MaximumLength - sizeof(UNICODE_NULL);
     SafeFileName.Buffer = ExAllocatePoolWithTag(PagedPool,
                                                 SafeFileName.MaximumLength,

win32ss/gdi/ntgdi/font.h

@@ -18,7 +18,7 @@ typedef struct _FONT_ENTRY_MEM
 typedef struct _FONT_ENTRY_COLL_MEM
 {
     LIST_ENTRY ListEntry;
-    UINT Handle;
+    HANDLE Handle;
     FONT_ENTRY_MEM *Entry;
 } FONT_ENTRY_COLL_MEM, *PFONT_ENTRY_COLL_MEM;
 

win32ss/gdi/ntgdi/freetype.c

@@ -1081,7 +1081,7 @@ IntGdiAddFontResource(PUNICODE_STRING FileName, DWORD Characteristics)
     PVOID Buffer = NULL;
     IO_STATUS_BLOCK Iosb;
     PVOID SectionObject;
-    ULONG ViewSize = 0;
+    SIZE_T ViewSize = 0;
     LARGE_INTEGER SectionSize;
     OBJECT_ATTRIBUTES ObjectAttributes;
     GDI_LOAD_FONT   LoadFont;
@@ -1168,7 +1168,7 @@ IntGdiAddFontResource(PUNICODE_STRING FileName, DWORD Characteristics)
         Status = ZwOpenKey(&KeyHandle, KEY_WRITE, &ObjectAttributes);
         if (NT_SUCCESS(Status))
         {
-            ULONG DataSize;
+            SIZE_T DataSize;
             LPWSTR pFileName = wcsrchr(FileName->Buffer, L'\\');
             if (pFileName)
             {
@@ -1225,10 +1225,10 @@ IntGdiAddFontMemResource(PVOID Buffer, DWORD dwSize, PDWORD pNumAdded)
             PPROCESSINFO Win32Process = PsGetCurrentProcessWin32Process();
             EntryCollection->Entry = LoadFont.PrivateEntry;
             IntLockProcessPrivateFonts(Win32Process);
-            EntryCollection->Handle = ++Win32Process->PrivateMemFontHandleCount;
+            EntryCollection->Handle = ULongToHandle(++Win32Process->PrivateMemFontHandleCount);
             InsertTailList(&Win32Process->PrivateMemFontListHead, &EntryCollection->ListEntry);
             IntUnLockProcessPrivateFonts(Win32Process);
-            Ret = (HANDLE)EntryCollection->Handle;
+            Ret = EntryCollection->Handle;
         }
     }
     *pNumAdded = FaceCount;
@@ -1302,7 +1302,7 @@ IntGdiRemoveFontMemResource(HANDLE hMMFont)
     {
         CurrentEntry = CONTAINING_RECORD(Entry, FONT_ENTRY_COLL_MEM, ListEntry);
 
-        if (CurrentEntry->Handle == (UINT)hMMFont)
+        if (CurrentEntry->Handle == hMMFont)
         {
             EntryCollection = CurrentEntry;
             UnlinkFontMemCollection(CurrentEntry);

win32ss/gdi/ntgdi/gdidbg.c

@@ -365,7 +365,7 @@ DbgGdiHTIntegrityCheck(VOID)
 
 		pEntry = &GdiHandleTable->Entries[i];
 		Type = pEntry->Type;
-		Handle = (HGDIOBJ)((Type << GDI_ENTRY_UPPER_SHIFT) + i);
+		Handle = (HGDIOBJ)(((ULONG_PTR)Type << GDI_ENTRY_UPPER_SHIFT) + i);
 
 		if (Type & GDI_ENTRY_BASETYPE_MASK)
 		{

win32ss/gdi/ntgdi/gdiobj.c

@@ -1515,7 +1515,7 @@ GDI_MapHandleTable(PEPROCESS pProcess)
     PVOID pvMappedView = NULL;
     NTSTATUS Status;
     LARGE_INTEGER liOffset;
-    ULONG cjViewSize = sizeof(GDI_HANDLE_TABLE);
+    SIZE_T cjViewSize = sizeof(GDI_HANDLE_TABLE);
 
     liOffset.QuadPart = 0;
 

win32ss/gdi/ntgdi/misc.h

@@ -54,25 +54,6 @@ BOOL
 NTAPI
 RegReadDWORD(HKEY hkey, PWSTR pwszValue, PDWORD pdwData);
 
-_Success_(return!=FALSE)
-BOOL
-NTAPI
-RegReadUserSetting(
-    _In_z_ PCWSTR pwszKeyName,
-    _In_z_ PCWSTR pwszValueName,
-    _In_ ULONG ulType,
-    _Out_writes_(cbDataSize) _When_(ulType == REG_SZ, _Post_z_) PVOID pvData,
-    _In_ ULONG cbDataSize);
-
-BOOL
-NTAPI
-RegWriteUserSetting(
-    IN PCWSTR pwszKeyName,
-    IN PCWSTR pwszValueName,
-    IN ULONG ulType,
-    OUT PVOID pvData,
-    IN ULONG cbDataSize);
-
 VOID FASTCALL
 SetLastNtError(
   NTSTATUS Status);

win32ss/gdi/ntgdi/palette.c

@@ -963,7 +963,7 @@ IntSetPaletteEntries(
     PPALETTE palGDI;
     ULONG numEntries;
 
-    if ((UINT)hpal & GDI_HANDLE_STOCK_MASK)
+    if ((UINT_PTR)hpal & GDI_HANDLE_STOCK_MASK)
     {
     	return 0;
     }
@@ -1247,7 +1247,7 @@ NtGdiUnrealizeObject(HGDIOBJ hgdiobj)
    PPALETTE palGDI;
 
    if ( !hgdiobj ||
-        ((UINT)hgdiobj & GDI_HANDLE_STOCK_MASK) ||
+        ((UINT_PTR)hgdiobj & GDI_HANDLE_STOCK_MASK) ||
         !GDI_HANDLE_IS_TYPE(hgdiobj, GDI_OBJECT_TYPE_PALETTE) )
       return Ret;
 

win32ss/gdi/ntgdi/text.c

@@ -496,7 +496,8 @@ NtGdiGetTextFaceW(
     HFONT hFont;
     PTEXTOBJ TextObj;
     NTSTATUS Status;
-    INT fLen, ret;
+    SIZE_T fLen;
+    INT ret;
 
     /* FIXME: Handle bAliasName */
 

win32ss/include/callback.h

@@ -80,7 +80,7 @@ typedef struct _EVENTPROC_CALLBACK_ARGUMENTS
   DWORD dwEventThread;
   DWORD dwmsEventTime;
   WINEVENTPROC Proc;
-  INT Mod;
+  INT_PTR Mod;
   ULONG_PTR offPfn;
 } EVENTPROC_CALLBACK_ARGUMENTS, *PEVENTPROC_CALLBACK_ARGUMENTS;
 

win32ss/include/ntuser.h

@@ -219,7 +219,7 @@ typedef struct tagHOOK
     int HookId; /* Hook table index */
     ULONG_PTR offPfn;
     ULONG flags; /* Some internal flags */
-    INT ihmod;
+    INT_PTR ihmod;
     struct _THREADINFO *ptiHooked;
     struct _DESKTOP *rpdesk;
     /* ReactOS */
@@ -692,7 +692,7 @@ typedef struct _WND
     HMENU SystemMenu;
     //PMENU spmenuSys;
     /* Window menu handle or window id */
-    UINT IDMenu; // Use spmenu
+    UINT_PTR IDMenu; // Use spmenu
     //PMENU spmenu;
     HRGN hrgnClip;
     HRGN hrgnNewFrame;
@@ -1662,14 +1662,14 @@ DWORD
 NTAPI
 NtUserCallHwndParam(
     HWND hWnd,
-    DWORD Param,
+    DWORD_PTR Param,
     DWORD Routine);
 
 DWORD
 NTAPI
 NtUserCallHwndParamLock(
     HWND hWnd,
-    DWORD Param,
+    DWORD_PTR Param,
     DWORD Routine);
 
 BOOL

win32ss/user/ntuser/class.c

@@ -2343,7 +2343,7 @@ UserRegisterSystemClasses(VOID)
         hBrush = DefaultServerClasses[i].hBrush;
         if (hBrush <= (HBRUSH)COLOR_MENUBAR)
         {
-            hBrush = IntGetSysColorBrush((INT)hBrush);
+            hBrush = IntGetSysColorBrush(HandleToUlong(hBrush));
         }
         wc.hbrBackground = hBrush;
         wc.lpszMenuName = NULL;

win32ss/user/ntuser/csr.c

@@ -87,10 +87,9 @@ CsrClientCallServer(IN OUT PCSR_API_MESSAGE ApiMessage,
 
     /* Fill out the Port Message Header */
     ApiMessage->Header.u2.ZeroInit = 0;
-    ApiMessage->Header.u1.s1.TotalLength = DataLength +
-        sizeof(CSR_API_MESSAGE) - sizeof(ApiMessage->Data); // FIELD_OFFSET(CSR_API_MESSAGE, Data) + DataLength;
-    ApiMessage->Header.u1.s1.DataLength = DataLength +
-        FIELD_OFFSET(CSR_API_MESSAGE, Data) - sizeof(ApiMessage->Header); // ApiMessage->Header.u1.s1.TotalLength - sizeof(PORT_MESSAGE);
+    ApiMessage->Header.u1.s1.TotalLength = FIELD_OFFSET(CSR_API_MESSAGE, Data) + DataLength;
+    ApiMessage->Header.u1.s1.DataLength = ApiMessage->Header.u1.s1.TotalLength - 
+        sizeof(ApiMessage->Header);
 
     /* Fill out the CSR Header */
     ApiMessage->ApiNumber = ApiNumber;

win32ss/user/ntuser/defwnd.c

@@ -967,7 +967,7 @@ IntDefWindowProc(
          if (!hBrush) return 0;
          if (hBrush <= (HBRUSH)COLOR_MENUBAR)
          {
-            hBrush = IntGetSysColorBrush((INT)hBrush);
+            hBrush = IntGetSysColorBrush(HandleToUlong(hBrush));
          }
          if (Wnd->pcls->style & CS_PARENTDC)
          {

win32ss/user/ntuser/desktop.c

@@ -1427,7 +1427,7 @@ IntPaintDesktop(HDC hDC)
         // We expect at most 4 strings (3 for version, 1 for optional NtSystemRoot)
         static POLYTEXTW VerStrs[4] = {{0},{0},{0},{0}};
         INT i = 0;
-        INT len;
+        SIZE_T len;
 
         HFONT hFont1 = NULL, hFont2 = NULL, hOldFont = NULL;
         COLORREF crText, color_old;
@@ -1503,7 +1503,7 @@ IntPaintDesktop(HDC hDC)
                 PWCHAR pstr = wszzVersion;
                 for (i = 0; (i < ARRAYSIZE(VerStrs)) && *pstr; ++i)
                 {
-                    VerStrs[i].n = wcslen(pstr);
+                    VerStrs[i].n = lstrlenW(pstr);
                     VerStrs[i].lpstr = pstr;
                     pstr += (VerStrs[i].n + 1);
                 }

win32ss/user/ntuser/event.c

@@ -388,14 +388,14 @@ NtUserSetWinEventHook(
       if (hmodWinEventProc != NULL)
       {
          pEH->offPfn = (ULONG_PTR)((char *)lpfnWinEventProc - (char *)hmodWinEventProc);
-         pEH->ihmod = (INT)hmodWinEventProc;
+         pEH->ihmod = (INT_PTR)hmodWinEventProc;
          pEH->Proc = lpfnWinEventProc;
       }
       else
       {
          pEH->Proc = lpfnWinEventProc;
          pEH->offPfn = 0;
-         pEH->ihmod = (INT)hmodWinEventProc;
+         pEH->ihmod = (INT_PTR)hmodWinEventProc;
       }
 
       UserDereferenceObject(pEH);

win32ss/user/ntuser/focus.c

@@ -1490,7 +1490,7 @@ IntAllowSetForegroundWindow(DWORD dwProcessId)
    ppi = NULL;
    if (dwProcessId != ASFW_ANY)
    {
-      if (!NT_SUCCESS(PsLookupProcessByProcessId((HANDLE)dwProcessId, &Process)))
+      if (!NT_SUCCESS(PsLookupProcessByProcessId(UlongToHandle(dwProcessId), &Process)))
       {
          EngSetLastError(ERROR_INVALID_PARAMETER);
          return FALSE;

win32ss/user/ntuser/hook.c

@@ -1470,7 +1470,7 @@ NtUserSetWindowsHookEx( HINSTANCE Mod,
            RETURN( NULL);
        }
 
-       if ( !(ptiHook = IntTID2PTI( (HANDLE)ThreadId )))
+       if ( !(ptiHook = IntTID2PTI( UlongToHandle(ThreadId) )))
        {
           ERR("Invalid thread id 0x%x\n", ThreadId);
           EngSetLastError(ERROR_INVALID_PARAMETER);
@@ -1556,7 +1556,7 @@ NtUserSetWindowsHookEx( HINSTANCE Mod,
        RETURN( NULL);
     }
 
-    Hook->ihmod   = (INT)Mod; // Module Index from atom table, Do this for now.
+    Hook->ihmod   = (INT_PTR)Mod; // Module Index from atom table, Do this for now.
     Hook->HookId  = HookId;
     Hook->rpdesk  = ptiHook->rpdesk;
     Hook->phkNext = NULL; /* Dont use as a chain! Use link lists for chaining. */

win32ss/user/ntuser/hook.h

@@ -23,7 +23,7 @@ typedef struct tagEVENTHOOK
   WINEVENTPROC   Proc;       /* Event function */
   ULONG          Flags;      /* Some internal flags */
   ULONG_PTR      offPfn;
-  INT            ihmod;
+  INT_PTR        ihmod;
 } EVENTHOOK, *PEVENTHOOK;
 
 typedef struct tagEVENTTABLE

win32ss/user/ntuser/input.c

@@ -677,8 +677,8 @@ NtUserAttachThreadInput(
   UserEnterExclusive();
   TRACE("Enter NtUserAttachThreadInput %s\n",(fAttach ? "TRUE" : "FALSE" ));
 
-  pti = IntTID2PTI((HANDLE)idAttach);
-  ptiTo = IntTID2PTI((HANDLE)idAttachTo);
+  pti = IntTID2PTI(UlongToHandle(idAttach));
+  ptiTo = IntTID2PTI(UlongToHandle(idAttachTo));
 
   if ( !pti || !ptiTo )
   {

win32ss/user/ntuser/kbdlayout.c

@@ -156,7 +156,7 @@ UserLoadKbdFile(PUNICODE_STRING pwszKLID)
     }
 
     /* Read filename of layout DLL */
-    cbSize = sizeof(wszLayoutPath) - wcslen(wszLayoutPath)*sizeof(WCHAR);
+    cbSize = (ULONG)(sizeof(wszLayoutPath) - wcslen(wszLayoutPath)*sizeof(WCHAR));
     Status = RegQueryValue(hKey,
                            L"Layout File",
                            REG_SZ,
@@ -632,7 +632,7 @@ NtUserLoadKeyboardLayoutEx(
     UserEnterExclusive();
 
     /* If hklUnload is specified, unload it and load new layput as default */
-    if (hklUnload && hklUnload != (HKL)hkl)
+    if (hklUnload && (hklUnload != UlongToHandle(hkl)))
     {
         pKl = UserHklToKbl(hklUnload);
         if (pKl)
@@ -640,11 +640,11 @@ NtUserLoadKeyboardLayoutEx(
     }
 
     /* Let's see if layout was already loaded. */
-    pKl = UserHklToKbl((HKL)hkl);
+    pKl = UserHklToKbl(UlongToHandle(hkl));
     if (!pKl)
     {
         /* It wasn't, so load it. */
-        pKl = UserLoadKbdLayout(&ustrSafeKLID, (HKL)hkl);
+        pKl = UserLoadKbdLayout(&ustrSafeKLID, UlongToHandle(hkl));
         if (!pKl)
             goto cleanup;
 
@@ -682,7 +682,7 @@ NtUserLoadKeyboardLayoutEx(
         co_IntShellHookNotify(HSHELL_LANGUAGE, 0, (LPARAM)hkl);
 
     /* Return hkl on success */
-    hklRet = (HKL)hkl;
+    hklRet = UlongToHandle(hkl);
 
     /* FIXME: KLF_REPLACELANG
               KLF_REORDER */

win32ss/user/ntuser/keyboard.c

@@ -1407,7 +1407,8 @@ APIENTRY
 NtUserGetKeyNameText(LONG lParam, LPWSTR lpString, int cchSize)
 {
     PTHREADINFO pti;
-    DWORD i, cchKeyName, dwRet = 0;
+    DWORD i, dwRet = 0;
+    SIZE_T cchKeyName;
     WORD wScanCode = (lParam >> 16) & 0xFF;
     BOOL bExtKey = (HIWORD(lParam) & KF_EXTENDED) ? TRUE : FALSE;
     PKBDTABLES pKbdTbl;

win32ss/user/ntuser/menu.c

@@ -1170,7 +1170,12 @@ IntSetMenuItemInfo(PMENU MenuObject, PITEM MenuItem, PROSMENUITEMINFO lpmii, PUN
       {
          UNICODE_STRING Source;
 
-         Source.Length = Source.MaximumLength = lpmii->cch * sizeof(WCHAR);
+         if (!NT_VERIFY(lpmii->cch <= UNICODE_STRING_MAX_CHARS))
+         {
+             return FALSE;
+         }
+
+         Source.Length = Source.MaximumLength = (USHORT)(lpmii->cch * sizeof(WCHAR));
          Source.Buffer = lpmii->dwTypeData;
 
          MenuItem->lpstr.Buffer = DesktopHeapAlloc( MenuObject->head.rpdesk, Source.Length + sizeof(WCHAR));
@@ -5288,7 +5293,7 @@ IntSetMenu(
 
    }
 
-   Wnd->IDMenu = (UINT) Menu;
+   Wnd->IDMenu = (UINT_PTR) Menu;
    if (NULL != NewMenu)
    {
       NewMenu->hWnd = UserHMGetHandle(Wnd);

win32ss/user/ntuser/message.c

@@ -2090,7 +2090,7 @@ NtUserPostThreadMessage(DWORD idThread,
 
     UserEnterExclusive();
 
-    Status = PsLookupThreadByThreadId((HANDLE)idThread,&peThread);
+    Status = PsLookupThreadByThreadId(UlongToHandle(idThread), &peThread);
 
     if ( Status == STATUS_SUCCESS )
     {

win32ss/user/ntuser/misc/registry.c

@@ -263,14 +263,15 @@ RegReadUserSetting(
     return NT_SUCCESS(Status);
 }
 
+_Success_(return != FALSE)
 BOOL
 NTAPI
 RegWriteUserSetting(
-    IN PCWSTR pwszKeyName,
-    IN PCWSTR pwszValueName,
-    IN ULONG ulType,
-    OUT PVOID pvData,
-    IN ULONG cbDataSize)
+    _In_z_ PCWSTR pwszKeyName,
+    _In_z_ PCWSTR pwszValueName,
+    _In_ ULONG ulType,
+    _In_reads_bytes_(cjDataSize) const VOID *pvData,
+    _In_ ULONG cbDataSize)
 {
     NTSTATUS Status;
     OBJECT_ATTRIBUTES ObjectAttributes;
@@ -337,7 +338,7 @@ RegWriteUserSetting(
     /* Initialize the value name string */
     RtlInitUnicodeString(&usValueName, pwszValueName);
 
-    Status = ZwSetValueKey(hkey, &usValueName, 0, ulType, pvData, cbDataSize);
+    Status = ZwSetValueKey(hkey, &usValueName, 0, ulType, (PVOID)pvData, cbDataSize);
     if(!NT_SUCCESS(Status))
     {
         DPRINT1("Failed to write reg key '%S' value '%S', Status = %lx\n",

win32ss/user/ntuser/nonclient.c

@@ -808,8 +808,8 @@ NC_DrawFrame( HDC hDC, RECT *CurrentRect, BOOL Active, DWORD Style, DWORD ExStyl
    /* Now the other bit of the frame */
    if (Style & (WS_DLGFRAME | WS_BORDER) || ExStyle & WS_EX_DLGMODALFRAME)
    {
-      DWORD Width = UserGetSystemMetrics(SM_CXBORDER);
-      DWORD Height = UserGetSystemMetrics(SM_CYBORDER);
+      LONG Width = UserGetSystemMetrics(SM_CXBORDER);
+      LONG Height = UserGetSystemMetrics(SM_CYBORDER);
 
       NtGdiSelectBrush(hDC, IntGetSysColorBrush(
          (ExStyle & (WS_EX_DLGMODALFRAME | WS_EX_CLIENTEDGE)) ? COLOR_3DFACE :

win32ss/user/ntuser/ntuser.h

@@ -28,4 +28,24 @@ BOOL FASTCALL UserIsEntered(VOID);
 BOOL FASTCALL UserIsEnteredExclusive(VOID);
 DWORD FASTCALL UserGetLanguageToggle(VOID);
 
+_Success_(return != FALSE)
+BOOL
+NTAPI
+RegReadUserSetting(
+    _In_z_ PCWSTR pwszKeyName,
+    _In_z_ PCWSTR pwszValueName,
+    _In_ ULONG ulType,
+    _Out_writes_bytes_(cjDataSize) _When_(ulType == REG_SZ, _Post_z_) PVOID pvData,
+    _In_ ULONG cjDataSize);
+
+_Success_(return != FALSE)
+BOOL
+NTAPI
+RegWriteUserSetting(
+    _In_z_ PCWSTR pwszKeyName,
+    _In_z_ PCWSTR pwszValueName,
+    _In_ ULONG ulType,
+    _In_reads_bytes_(cjDataSize) const VOID *pvData,
+    _In_ ULONG cjDataSize);
+
 /* EOF */

win32ss/user/ntuser/object.c

@@ -308,12 +308,12 @@ void DbgUserDumpHandleTable(VOID)
 PUSER_HANDLE_ENTRY handle_to_entry(PUSER_HANDLE_TABLE ht, HANDLE handle )
 {
    unsigned short generation;
-   int index = (((unsigned int)handle & 0xffff) - FIRST_USER_HANDLE) >> 1;
+   int index = (LOWORD(handle) - FIRST_USER_HANDLE) >> 1;
    if (index < 0 || index >= ht->nb_handles)
       return NULL;
    if (!ht->handles[index].type)
       return NULL;
-   generation = (unsigned int)handle >> 16;
+   generation = HIWORD(handle);
    if (generation == ht->handles[index].generation || !generation || generation == 0xffff)
       return &ht->handles[index];
    return NULL;
@@ -322,7 +322,7 @@ PUSER_HANDLE_ENTRY handle_to_entry(PUSER_HANDLE_TABLE ht, HANDLE handle )
 __inline static HANDLE entry_to_handle(PUSER_HANDLE_TABLE ht, PUSER_HANDLE_ENTRY ptr )
 {
    int index = ptr - ht->handles;
-   return (HANDLE)(((index << 1) + FIRST_USER_HANDLE) + (ptr->generation << 16));
+   return (HANDLE)((((INT_PTR)index << 1) + FIRST_USER_HANDLE) + (ptr->generation << 16));
 }
 
 __inline static PUSER_HANDLE_ENTRY alloc_user_entry(PUSER_HANDLE_TABLE ht)
@@ -479,7 +479,7 @@ HANDLE get_user_full_handle(PUSER_HANDLE_TABLE ht,  HANDLE handle )
 {
    PUSER_HANDLE_ENTRY entry;
 
-   if ((unsigned int)handle >> 16)
+   if ((ULONG_PTR)handle >> 16)
       return handle;
    if (!(entry = handle_to_entry(ht, handle )))
       return handle;

win32ss/user/ntuser/painting.c

@@ -1310,13 +1310,13 @@ BOOL
 FASTCALL
 IntFlashWindowEx(PWND pWnd, PFLASHWINFO pfwi)
 {
-   DWORD FlashState;
+   DWORD_PTR FlashState;
    UINT uCount = pfwi->uCount;
    BOOL Activate = FALSE, Ret = FALSE;
 
    ASSERT(pfwi);
 
-   FlashState = (DWORD)UserGetProp(pWnd, AtomFlashWndState, TRUE);
+   FlashState = (DWORD_PTR)UserGetProp(pWnd, AtomFlashWndState, TRUE);
 
    if (FlashState == FLASHW_FINISHED)
    {

win32ss/user/ntuser/simplecall.c

@@ -725,7 +725,7 @@ DWORD
 APIENTRY
 NtUserCallHwndParam(
     HWND hWnd,
-    DWORD Param,
+    DWORD_PTR Param,
     DWORD Routine)
 {
 
@@ -834,7 +834,7 @@ DWORD
 APIENTRY
 NtUserCallHwndParamLock(
     HWND hWnd,
-    DWORD Param,
+    DWORD_PTR Param,
     DWORD Routine)
 {
     DWORD Ret = FALSE;

win32ss/user/ntuser/sysparams.c

@@ -382,7 +382,7 @@ SpiStoreSz(PCWSTR pwszKey, PCWSTR pwszValue, PCWSTR pwsz)
     RegWriteUserSetting(pwszKey,
                         pwszValue,
                         REG_SZ,
-                        (PWSTR)pwsz,
+                        pwsz,
                         (wcslen(pwsz) + 1) * sizeof(WCHAR));
 }
 
@@ -561,7 +561,7 @@ UINT_PTR
 SpiSetUserPref(DWORD dwMask, PVOID pvValue, FLONG fl)
 {
     DWORD dwRegMask;
-    BOOL bValue = (BOOL)pvValue;
+    BOOL bValue = PtrToUlong(pvValue);
 
     REQ_INTERACTIVE_WINSTA(ERROR_REQUIRES_INTERACTIVE_WINDOWSTATION);
 
@@ -1612,7 +1612,7 @@ SpiGetSet(UINT uiAction, UINT uiParam, PVOID pvParam, FLONG fl)
             return SpiGetUserPref(UPM_CURSORSHADOW, pvParam, fl);
 
         case SPI_SETCURSORSHADOW:
-            gspv.bMouseCursorShadow = (BOOL)pvParam;
+            gspv.bMouseCursorShadow = PtrToUlong(pvParam);
             return SpiSetUserPref(UPM_CURSORSHADOW, pvParam, fl);
 
         case SPI_GETUIEFFECTS:
@@ -1631,7 +1631,7 @@ SpiGetSet(UINT uiAction, UINT uiParam, PVOID pvParam, FLONG fl)
             return SpiGetUserPref(UPM_CLICKLOCK, pvParam, fl);
 
         case SPI_SETMOUSECLICKLOCK:
-            gspv.bMouseClickLock = (BOOL)pvParam;
+            gspv.bMouseClickLock = PtrToUlong(pvParam);
             return SpiSetUserPref(UPM_CLICKLOCK, pvParam, fl);
 
         case SPI_GETMOUSEVANISH:

win32ss/user/ntuser/win32.h

@@ -295,3 +295,17 @@ typedef struct _PROCESSINFO
 void NTAPI UserDbgPreServiceHook(ULONG ulSyscallId, PULONG_PTR pulArguments);
 ULONG_PTR NTAPI UserDbgPostServiceHook(ULONG ulSyscallId, ULONG_PTR ulResult);
 #endif
+
+/* Helper function used by some wine code */
+
+__forceinline
+int
+lstrlenW(
+    _In_ LPCWSTR lpString)
+{
+    size_t size = wcslen(lpString);
+    if (size > ULONG_MAX) __fastfail(FAST_FAIL_RANGE_CHECK_FAILURE);
+    return (int)size;
+}
+
+#define strlenW lstrlenW

win32ss/user/ntuser/window.c

@@ -1385,7 +1385,7 @@ NtUserBuildHwndList(
       PWND Window;
       HWND *List = NULL;
 
-      Status = PsLookupThreadByThreadId((HANDLE)dwThreadId, &Thread);
+      Status = PsLookupThreadByThreadId(UlongToHandle(dwThreadId), &Thread);
       if (!NT_SUCCESS(Status))
       {
          ERR("Thread Id is not valid!\n");
@@ -1840,7 +1840,7 @@ PWND FASTCALL IntCreateWindow(CREATESTRUCTW* Cs,
       }
    }
    else // Not a child
-      pWnd->IDMenu = (UINT) Cs->hMenu;
+      pWnd->IDMenu = (UINT_PTR)Cs->hMenu;
 
 
    if ( ParentWindow &&

win32ss/user/ntuser/winsta.c

@@ -676,7 +676,7 @@ NtUserGetObjectInformation(
     PDESKTOP DesktopObject = NULL;
     USEROBJECTFLAGS ObjectFlags;
     PVOID pvData = NULL;
-    DWORD nDataSize = 0;
+    SIZE_T nDataSize = 0;
 
     _SEH2_TRY
     {

win32ss/user/rtl/text.c

@@ -163,11 +163,7 @@ static void TEXT_Ellipsify (HDC hdc, WCHAR *str, unsigned int max_len,
 {
     unsigned int len_ellipsis;
     unsigned int lo, mid, hi;
-#ifdef _WIN32K_
-    len_ellipsis = wcslen (ELLIPSISW);
-#else
     len_ellipsis = strlenW (ELLIPSISW);
-#endif
     if (len_ellipsis > max_len) len_ellipsis = max_len;
     if (*len_str > max_len - len_ellipsis)
         *len_str = max_len - len_ellipsis;
@@ -274,11 +270,7 @@ static void TEXT_PathEllipsify (HDC hdc, WCHAR *str, unsigned int max_len,
     int len_trailing;
     int len_under;
     WCHAR *lastBkSlash, *lastFwdSlash, *lastSlash;
-#ifdef _WIN32K_
-    len_ellipsis = wcslen (ELLIPSISW);
-#else
     len_ellipsis = strlenW (ELLIPSISW);
-#endif
     if (!max_len) return;
     if (len_ellipsis >= max_len) len_ellipsis = max_len - 1;
     if (*len_str + len_ellipsis >= max_len)