user32: Return a proper NTSTATUS in the post DDE message callback.

dlls/user32/message.c

@@ -333,7 +333,7 @@ static HGLOBAL dde_get_pair(HGLOBAL shm)
  *
  * Post a DDE message
  */
-BOOL post_dde_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam, DWORD dest_tid, DWORD type )
+NTSTATUS post_dde_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam, DWORD dest_tid, DWORD type )
 {
     void*       ptr = NULL;
     int         size = 0;
@@ -344,7 +344,7 @@ BOOL post_dde_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam, DWORD
     ULONGLONG   hpack;
 
     if (!UnpackDDElParam( msg, lparam, &uiLo, &uiHi ))
-        return FALSE;
+        return STATUS_INVALID_PARAMETER;
 
     lp = lparam;
     switch (msg)
@@ -386,9 +386,9 @@ BOOL post_dde_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam, DWORD
             if ((msg == WM_DDE_ADVISE && size < sizeof(DDEADVISE)) ||
                 (msg == WM_DDE_DATA   && size < FIELD_OFFSET(DDEDATA, Value)) ||
                 (msg == WM_DDE_POKE   && size < FIELD_OFFSET(DDEPOKE, Value)))
-                return FALSE;
+                return STATUS_INVALID_PARAMETER;
         }
-        else if (msg != WM_DDE_DATA) return FALSE;
+        else if (msg != WM_DDE_DATA) return STATUS_INVALID_PARAMETER;
 
         lp = uiHi;
         if (uiLo)
@@ -428,21 +428,12 @@ BOOL post_dde_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam, DWORD
         req->lparam  = lp;
         req->timeout = TIMEOUT_INFINITE;
         if (size) wine_server_add_data( req, ptr, size );
-        if ((res = wine_server_call( req )))
-        {
-            if (res == STATUS_INVALID_PARAMETER)
-                /* FIXME: find a STATUS_ value for this one */
-                SetLastError( ERROR_INVALID_THREAD_ID );
-            else
-                SetLastError( RtlNtStatusToDosError(res) );
-        }
-        else
-            FreeDDElParam( msg, lparam );
+        if (!(res = wine_server_call( req ))) FreeDDElParam( msg, lparam );
     }
     SERVER_END_REQ;
     if (hunlock) GlobalUnlock(hunlock);
 
-    return !res;
+    return res;
 }
 
 /***********************************************************************

dlls/user32/user_private.h

@@ -45,8 +45,8 @@ struct wm_char_mapping_data
 
 extern HMODULE user32_module;
 
-extern BOOL post_dde_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam, DWORD dest_tid,
-                              DWORD type );
+extern NTSTATUS post_dde_message( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam, DWORD dest_tid,
+                                  DWORD type );
 extern BOOL unpack_dde_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
                                 const void *buffer, size_t size );
 extern void free_cached_data( UINT format, HANDLE handle );

dlls/win32u/message.c

@@ -3299,7 +3299,8 @@ static BOOL put_message_in_queue( const struct send_message_info *info, size_t *
         params.lparam   = info->lparam;
         params.dest_tid = info->dest_tid;
         params.type     = info->type;
-        return KeUserModeCallback( NtUserPostDDEMessage, &params, sizeof(params), &ret_ptr, &ret_len );
+        res = KeUserModeCallback( NtUserPostDDEMessage, &params, sizeof(params), &ret_ptr, &ret_len );
+        goto done;
     }
 
     SERVER_START_REQ( send_message )
@@ -3315,16 +3316,13 @@ static BOOL put_message_in_queue( const struct send_message_info *info, size_t *
 
         if (info->flags & SMTO_ABORTIFHUNG) req->flags |= SEND_MSG_ABORT_IF_HUNG;
         for (i = 0; i < data.count; i++) wine_server_add_data( req, data.data[i], data.size[i] );
-        if ((res = wine_server_call( req )))
-        {
-            if (res == STATUS_INVALID_PARAMETER)
-                /* FIXME: find a STATUS_ value for this one */
-                RtlSetLastWin32Error( ERROR_INVALID_THREAD_ID );
-            else
-                RtlSetLastWin32Error( RtlNtStatusToDosError(res) );
-        }
+        res = wine_server_call( req );
     }
     SERVER_END_REQ;
+
+done:
+    if (res == STATUS_INVALID_PARAMETER) res = STATUS_NO_LDT;
+    if (res) RtlSetLastWin32Error( RtlNtStatusToDosError(res) );
     return !res;
 }